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rocksdb/db/external_sst_file_test.cc
Giuseppe Ottaviano 4bfd415e34 Fix sequence number bump logic in multi-CF SST ingestion (#9005) 
Summary:
The code in `IngestExternalFiles()` that bumps the DB's sequence number
depending on what seqnos were assigned to the files has 3 bugs:

1) There is an assertion that the sequence number is increased in all the
affected column families, but this is unnecessary, it is fine if some files can
stick to a lower sequence number. It is very easy to hit the assertion: it is
sufficient to insert 2 files in 2 CFs, one which overlaps the CF and one that
doesn't (for example the CF is empty). The line added in the
`IngestFilesIntoMultipleColumnFamilies_Success` test makes the assertion fail.

2) SetLastSequence() is called with the sum of all the bumps across CFs, but we
should take the maximum instead, as all CFs start with the current seqno and bump
it independently.

3) The code above is accidentally under a `#ifndef NDEBUG`, so it doesn't run in
optimized builds, so some files may be assigned seqnos from the future.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9005

Test Plan:
Added line in `IngestFilesIntoMultipleColumnFamilies_Success` that
triggers the assertion, verified that the test (and all the others) pass after
the fix.

Reviewed By: ajkr

Differential Revision: D31597892

Pulled By: ot

fbshipit-source-id: c2d3237f90290df1178736ace8653a9623f5a770
2021-10-12 20:39:52 -07:00

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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#ifndef ROCKSDB_LITE
#include <functional>
#include "db/db_test_util.h"
#include "db/dbformat.h"
#include "file/filename.h"
#include "port/port.h"
#include "port/stack_trace.h"
#include "rocksdb/sst_file_reader.h"
#include "rocksdb/sst_file_writer.h"
#include "test_util/testutil.h"
#include "util/random.h"
#include "util/thread_guard.h"
#include "utilities/fault_injection_env.h"
namespace ROCKSDB_NAMESPACE {
// A test environment that can be configured to fail the Link operation.
class ExternalSSTTestEnv : public EnvWrapper {
public:
ExternalSSTTestEnv(Env* t, bool fail_link)
: EnvWrapper(t), fail_link_(fail_link) {}
Status LinkFile(const std::string& s, const std::string& t) override {
if (fail_link_) {
return Status::NotSupported("Link failed");
}
return target()->LinkFile(s, t);
}
void set_fail_link(bool fail_link) { fail_link_ = fail_link; }
private:
bool fail_link_;
};
class ExternSSTFileLinkFailFallbackTest
: public DBTestBase,
public ::testing::WithParamInterface<std::tuple<bool, bool>> {
public:
ExternSSTFileLinkFailFallbackTest()
: DBTestBase("external_sst_file_test", /*env_do_fsync=*/true),
test_env_(new ExternalSSTTestEnv(env_, true)) {
sst_files_dir_ = dbname_ + "/sst_files/";
EXPECT_EQ(DestroyDir(env_, sst_files_dir_), Status::OK());
EXPECT_EQ(env_->CreateDir(sst_files_dir_), Status::OK());
options_ = CurrentOptions();
options_.disable_auto_compactions = true;
options_.env = test_env_;
}
void TearDown() override {
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, options_));
delete test_env_;
test_env_ = nullptr;
}
protected:
std::string sst_files_dir_;
Options options_;
ExternalSSTTestEnv* test_env_;
};
class ExternalSSTFileTest
: public DBTestBase,
public ::testing::WithParamInterface<std::tuple<bool, bool>> {
public:
ExternalSSTFileTest()
: DBTestBase("external_sst_file_test", /*env_do_fsync=*/true) {
sst_files_dir_ = dbname_ + "/sst_files/";
DestroyAndRecreateExternalSSTFilesDir();
}
void DestroyAndRecreateExternalSSTFilesDir() {
ASSERT_OK(DestroyDir(env_, sst_files_dir_));
ASSERT_OK(env_->CreateDir(sst_files_dir_));
}
Status GenerateOneExternalFile(
const Options& options, ColumnFamilyHandle* cfh,
std::vector<std::pair<std::string, std::string>>& data, int file_id,
bool sort_data, std::string* external_file_path,
std::map<std::string, std::string>* true_data) {
// Generate a file id if not provided
if (-1 == file_id) {
file_id = (++last_file_id_);
}
// Sort data if asked to do so
if (sort_data) {
std::sort(data.begin(), data.end(),
[&](const std::pair<std::string, std::string>& e1,
const std::pair<std::string, std::string>& e2) {
return options.comparator->Compare(e1.first, e2.first) < 0;
});
auto uniq_iter = std::unique(
data.begin(), data.end(),
[&](const std::pair<std::string, std::string>& e1,
const std::pair<std::string, std::string>& e2) {
return options.comparator->Compare(e1.first, e2.first) == 0;
});
data.resize(uniq_iter - data.begin());
}
std::string file_path = sst_files_dir_ + ToString(file_id);
SstFileWriter sst_file_writer(EnvOptions(), options, cfh);
Status s = sst_file_writer.Open(file_path);
if (!s.ok()) {
return s;
}
for (const auto& entry : data) {
s = sst_file_writer.Put(entry.first, entry.second);
if (!s.ok()) {
sst_file_writer.Finish().PermitUncheckedError();
return s;
}
}
s = sst_file_writer.Finish();
if (s.ok() && external_file_path != nullptr) {
*external_file_path = file_path;
}
if (s.ok() && nullptr != true_data) {
for (const auto& entry : data) {
true_data->insert({entry.first, entry.second});
}
}
return s;
}
Status GenerateAndAddExternalFile(
const Options options,
std::vector<std::pair<std::string, std::string>> data, int file_id = -1,
bool allow_global_seqno = false, bool write_global_seqno = false,
bool verify_checksums_before_ingest = true, bool ingest_behind = false,
bool sort_data = false,
std::map<std::string, std::string>* true_data = nullptr,
ColumnFamilyHandle* cfh = nullptr) {
// Generate a file id if not provided
if (file_id == -1) {
file_id = last_file_id_ + 1;
last_file_id_++;
}
// Sort data if asked to do so
if (sort_data) {
std::sort(data.begin(), data.end(),
[&](const std::pair<std::string, std::string>& e1,
const std::pair<std::string, std::string>& e2) {
return options.comparator->Compare(e1.first, e2.first) < 0;
});
auto uniq_iter = std::unique(
data.begin(), data.end(),
[&](const std::pair<std::string, std::string>& e1,
const std::pair<std::string, std::string>& e2) {
return options.comparator->Compare(e1.first, e2.first) == 0;
});
data.resize(uniq_iter - data.begin());
}
std::string file_path = sst_files_dir_ + ToString(file_id);
SstFileWriter sst_file_writer(EnvOptions(), options, cfh);
Status s = sst_file_writer.Open(file_path);
if (!s.ok()) {
return s;
}
for (auto& entry : data) {
s = sst_file_writer.Put(entry.first, entry.second);
if (!s.ok()) {
sst_file_writer.Finish().PermitUncheckedError();
return s;
}
}
s = sst_file_writer.Finish();
if (s.ok()) {
IngestExternalFileOptions ifo;
ifo.allow_global_seqno = allow_global_seqno;
ifo.write_global_seqno = allow_global_seqno ? write_global_seqno : false;
ifo.verify_checksums_before_ingest = verify_checksums_before_ingest;
ifo.ingest_behind = ingest_behind;
if (cfh) {
s = db_->IngestExternalFile(cfh, {file_path}, ifo);
} else {
s = db_->IngestExternalFile({file_path}, ifo);
}
}
if (s.ok() && true_data) {
for (auto& entry : data) {
(*true_data)[entry.first] = entry.second;
}
}
return s;
}
Status GenerateAndAddExternalFiles(
const Options& options,
const std::vector<ColumnFamilyHandle*>& column_families,
const std::vector<IngestExternalFileOptions>& ifos,
std::vector<std::vector<std::pair<std::string, std::string>>>& data,
int file_id, bool sort_data,
std::vector<std::map<std::string, std::string>>& true_data) {
if (-1 == file_id) {
file_id = (++last_file_id_);
}
// Generate external SST files, one for each column family
size_t num_cfs = column_families.size();
assert(ifos.size() == num_cfs);
assert(data.size() == num_cfs);
std::vector<IngestExternalFileArg> args(num_cfs);
for (size_t i = 0; i != num_cfs; ++i) {
std::string external_file_path;
Status s = GenerateOneExternalFile(
options, column_families[i], data[i], file_id, sort_data,
&external_file_path,
true_data.size() == num_cfs ? &true_data[i] : nullptr);
if (!s.ok()) {
return s;
}
++file_id;
args[i].column_family = column_families[i];
args[i].external_files.push_back(external_file_path);
args[i].options = ifos[i];
}
return db_->IngestExternalFiles(args);
}
Status GenerateAndAddExternalFile(
const Options options, std::vector<std::pair<int, std::string>> data,
int file_id = -1, bool allow_global_seqno = false,
bool write_global_seqno = false,
bool verify_checksums_before_ingest = true, bool ingest_behind = false,
bool sort_data = false,
std::map<std::string, std::string>* true_data = nullptr,
ColumnFamilyHandle* cfh = nullptr) {
std::vector<std::pair<std::string, std::string>> file_data;
for (auto& entry : data) {
file_data.emplace_back(Key(entry.first), entry.second);
}
return GenerateAndAddExternalFile(options, file_data, file_id,
allow_global_seqno, write_global_seqno,
verify_checksums_before_ingest,
ingest_behind, sort_data, true_data, cfh);
}
Status GenerateAndAddExternalFile(
const Options options, std::vector<int> keys, int file_id = -1,
bool allow_global_seqno = false, bool write_global_seqno = false,
bool verify_checksums_before_ingest = true, bool ingest_behind = false,
bool sort_data = false,
std::map<std::string, std::string>* true_data = nullptr,
ColumnFamilyHandle* cfh = nullptr) {
std::vector<std::pair<std::string, std::string>> file_data;
for (auto& k : keys) {
file_data.emplace_back(Key(k), Key(k) + ToString(file_id));
}
return GenerateAndAddExternalFile(options, file_data, file_id,
allow_global_seqno, write_global_seqno,
verify_checksums_before_ingest,
ingest_behind, sort_data, true_data, cfh);
}
Status DeprecatedAddFile(const std::vector<std::string>& files,
bool move_files = false,
bool skip_snapshot_check = false,
bool skip_write_global_seqno = false) {
IngestExternalFileOptions opts;
opts.move_files = move_files;
opts.snapshot_consistency = !skip_snapshot_check;
opts.allow_global_seqno = false;
opts.allow_blocking_flush = false;
opts.write_global_seqno = !skip_write_global_seqno;
return db_->IngestExternalFile(files, opts);
}
~ExternalSSTFileTest() override {
DestroyDir(env_, sst_files_dir_).PermitUncheckedError();
}
protected:
int last_file_id_ = 0;
std::string sst_files_dir_;
};
TEST_F(ExternalSSTFileTest, Basic) {
do {
Options options = CurrentOptions();
SstFileWriter sst_file_writer(EnvOptions(), options);
// Current file size should be 0 after sst_file_writer init and before open a file.
ASSERT_EQ(sst_file_writer.FileSize(), 0);
// file1.sst (0 => 99)
std::string file1 = sst_files_dir_ + "file1.sst";
ASSERT_OK(sst_file_writer.Open(file1));
for (int k = 0; k < 100; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file1_info;
ASSERT_OK(sst_file_writer.Finish(&file1_info));
// Current file size should be non-zero after success write.
ASSERT_GT(sst_file_writer.FileSize(), 0);
ASSERT_EQ(file1_info.file_path, file1);
ASSERT_EQ(file1_info.num_entries, 100);
ASSERT_EQ(file1_info.smallest_key, Key(0));
ASSERT_EQ(file1_info.largest_key, Key(99));
ASSERT_EQ(file1_info.num_range_del_entries, 0);
ASSERT_EQ(file1_info.smallest_range_del_key, "");
ASSERT_EQ(file1_info.largest_range_del_key, "");
// sst_file_writer already finished, cannot add this value
ASSERT_NOK(sst_file_writer.Put(Key(100), "bad_val"));
// file2.sst (100 => 199)
std::string file2 = sst_files_dir_ + "file2.sst";
ASSERT_OK(sst_file_writer.Open(file2));
for (int k = 100; k < 200; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
// Cannot add this key because it's not after last added key
ASSERT_NOK(sst_file_writer.Put(Key(99), "bad_val"));
ExternalSstFileInfo file2_info;
ASSERT_OK(sst_file_writer.Finish(&file2_info));
ASSERT_EQ(file2_info.file_path, file2);
ASSERT_EQ(file2_info.num_entries, 100);
ASSERT_EQ(file2_info.smallest_key, Key(100));
ASSERT_EQ(file2_info.largest_key, Key(199));
// file3.sst (195 => 299)
// This file values overlap with file2 values
std::string file3 = sst_files_dir_ + "file3.sst";
ASSERT_OK(sst_file_writer.Open(file3));
for (int k = 195; k < 300; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val_overlap"));
}
ExternalSstFileInfo file3_info;
ASSERT_OK(sst_file_writer.Finish(&file3_info));
// Current file size should be non-zero after success finish.
ASSERT_GT(sst_file_writer.FileSize(), 0);
ASSERT_EQ(file3_info.file_path, file3);
ASSERT_EQ(file3_info.num_entries, 105);
ASSERT_EQ(file3_info.smallest_key, Key(195));
ASSERT_EQ(file3_info.largest_key, Key(299));
// file4.sst (30 => 39)
// This file values overlap with file1 values
std::string file4 = sst_files_dir_ + "file4.sst";
ASSERT_OK(sst_file_writer.Open(file4));
for (int k = 30; k < 40; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val_overlap"));
}
ExternalSstFileInfo file4_info;
ASSERT_OK(sst_file_writer.Finish(&file4_info));
ASSERT_EQ(file4_info.file_path, file4);
ASSERT_EQ(file4_info.num_entries, 10);
ASSERT_EQ(file4_info.smallest_key, Key(30));
ASSERT_EQ(file4_info.largest_key, Key(39));
// file5.sst (400 => 499)
std::string file5 = sst_files_dir_ + "file5.sst";
ASSERT_OK(sst_file_writer.Open(file5));
for (int k = 400; k < 500; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file5_info;
ASSERT_OK(sst_file_writer.Finish(&file5_info));
ASSERT_EQ(file5_info.file_path, file5);
ASSERT_EQ(file5_info.num_entries, 100);
ASSERT_EQ(file5_info.smallest_key, Key(400));
ASSERT_EQ(file5_info.largest_key, Key(499));
// file6.sst (delete 400 => 500)
std::string file6 = sst_files_dir_ + "file6.sst";
ASSERT_OK(sst_file_writer.Open(file6));
ASSERT_OK(sst_file_writer.DeleteRange(Key(400), Key(500)));
ExternalSstFileInfo file6_info;
ASSERT_OK(sst_file_writer.Finish(&file6_info));
ASSERT_EQ(file6_info.file_path, file6);
ASSERT_EQ(file6_info.num_entries, 0);
ASSERT_EQ(file6_info.smallest_key, "");
ASSERT_EQ(file6_info.largest_key, "");
ASSERT_EQ(file6_info.num_range_del_entries, 1);
ASSERT_EQ(file6_info.smallest_range_del_key, Key(400));
ASSERT_EQ(file6_info.largest_range_del_key, Key(500));
// file7.sst (delete 500 => 570, put 520 => 599 divisible by 2)
std::string file7 = sst_files_dir_ + "file7.sst";
ASSERT_OK(sst_file_writer.Open(file7));
ASSERT_OK(sst_file_writer.DeleteRange(Key(500), Key(550)));
for (int k = 520; k < 560; k += 2) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ASSERT_OK(sst_file_writer.DeleteRange(Key(525), Key(575)));
for (int k = 560; k < 600; k += 2) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file7_info;
ASSERT_OK(sst_file_writer.Finish(&file7_info));
ASSERT_EQ(file7_info.file_path, file7);
ASSERT_EQ(file7_info.num_entries, 40);
ASSERT_EQ(file7_info.smallest_key, Key(520));
ASSERT_EQ(file7_info.largest_key, Key(598));
ASSERT_EQ(file7_info.num_range_del_entries, 2);
ASSERT_EQ(file7_info.smallest_range_del_key, Key(500));
ASSERT_EQ(file7_info.largest_range_del_key, Key(575));
// file8.sst (delete 600 => 700)
std::string file8 = sst_files_dir_ + "file8.sst";
ASSERT_OK(sst_file_writer.Open(file8));
ASSERT_OK(sst_file_writer.DeleteRange(Key(600), Key(700)));
ExternalSstFileInfo file8_info;
ASSERT_OK(sst_file_writer.Finish(&file8_info));
ASSERT_EQ(file8_info.file_path, file8);
ASSERT_EQ(file8_info.num_entries, 0);
ASSERT_EQ(file8_info.smallest_key, "");
ASSERT_EQ(file8_info.largest_key, "");
ASSERT_EQ(file8_info.num_range_del_entries, 1);
ASSERT_EQ(file8_info.smallest_range_del_key, Key(600));
ASSERT_EQ(file8_info.largest_range_del_key, Key(700));
// Cannot create an empty sst file
std::string file_empty = sst_files_dir_ + "file_empty.sst";
ExternalSstFileInfo file_empty_info;
ASSERT_NOK(sst_file_writer.Finish(&file_empty_info));
DestroyAndReopen(options);
// Add file using file path
ASSERT_OK(DeprecatedAddFile({file1}));
ASSERT_EQ(db_->GetLatestSequenceNumber(), 0U);
for (int k = 0; k < 100; k++) {
ASSERT_EQ(Get(Key(k)), Key(k) + "_val");
}
// Add file while holding a snapshot will fail
const Snapshot* s1 = db_->GetSnapshot();
if (s1 != nullptr) {
ASSERT_NOK(DeprecatedAddFile({file2}));
db_->ReleaseSnapshot(s1);
}
// We can add the file after releaseing the snapshot
ASSERT_OK(DeprecatedAddFile({file2}));
ASSERT_EQ(db_->GetLatestSequenceNumber(), 0U);
for (int k = 0; k < 200; k++) {
ASSERT_EQ(Get(Key(k)), Key(k) + "_val");
}
// This file has overlapping values with the existing data
ASSERT_NOK(DeprecatedAddFile({file3}));
// This file has overlapping values with the existing data
ASSERT_NOK(DeprecatedAddFile({file4}));
// Overwrite values of keys divisible by 5
for (int k = 0; k < 200; k += 5) {
ASSERT_OK(Put(Key(k), Key(k) + "_val_new"));
}
ASSERT_NE(db_->GetLatestSequenceNumber(), 0U);
// Key range of file5 (400 => 499) don't overlap with any keys in DB
ASSERT_OK(DeprecatedAddFile({file5}));
// This file has overlapping values with the existing data
ASSERT_NOK(DeprecatedAddFile({file6}));
// Key range of file7 (500 => 598) don't overlap with any keys in DB
ASSERT_OK(DeprecatedAddFile({file7}));
// Key range of file7 (600 => 700) don't overlap with any keys in DB
ASSERT_OK(DeprecatedAddFile({file8}));
// Make sure values are correct before and after flush/compaction
for (int i = 0; i < 2; i++) {
for (int k = 0; k < 200; k++) {
std::string value = Key(k) + "_val";
if (k % 5 == 0) {
value += "_new";
}
ASSERT_EQ(Get(Key(k)), value);
}
for (int k = 400; k < 500; k++) {
std::string value = Key(k) + "_val";
ASSERT_EQ(Get(Key(k)), value);
}
for (int k = 500; k < 600; k++) {
std::string value = Key(k) + "_val";
if (k < 520 || k % 2 == 1) {
value = "NOT_FOUND";
}
ASSERT_EQ(Get(Key(k)), value);
}
ASSERT_OK(Flush());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
}
Close();
options.disable_auto_compactions = true;
Reopen(options);
// Delete keys in range (400 => 499)
for (int k = 400; k < 500; k++) {
ASSERT_OK(Delete(Key(k)));
}
// We deleted range (400 => 499) but cannot add file5 because
// of the range tombstones
ASSERT_NOK(DeprecatedAddFile({file5}));
// Compacting the DB will remove the tombstones
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
// Now we can add the file
ASSERT_OK(DeprecatedAddFile({file5}));
// Verify values of file5 in DB
for (int k = 400; k < 500; k++) {
std::string value = Key(k) + "_val";
ASSERT_EQ(Get(Key(k)), value);
}
DestroyAndRecreateExternalSSTFilesDir();
} while (ChangeOptions(kSkipPlainTable | kSkipFIFOCompaction |
kRangeDelSkipConfigs));
}
class SstFileWriterCollector : public TablePropertiesCollector {
public:
explicit SstFileWriterCollector(const std::string prefix) : prefix_(prefix) {
name_ = prefix_ + "_SstFileWriterCollector";
}
const char* Name() const override { return name_.c_str(); }
Status Finish(UserCollectedProperties* properties) override {
std::string count = std::to_string(count_);
*properties = UserCollectedProperties{
{prefix_ + "_SstFileWriterCollector", "YES"},
{prefix_ + "_Count", count},
};
return Status::OK();
}
Status AddUserKey(const Slice& /*user_key*/, const Slice& /*value*/,
EntryType /*type*/, SequenceNumber /*seq*/,
uint64_t /*file_size*/) override {
++count_;
return Status::OK();
}
UserCollectedProperties GetReadableProperties() const override {
return UserCollectedProperties{};
}
private:
uint32_t count_ = 0;
std::string prefix_;
std::string name_;
};
class SstFileWriterCollectorFactory : public TablePropertiesCollectorFactory {
public:
explicit SstFileWriterCollectorFactory(std::string prefix)
: prefix_(prefix), num_created_(0) {}
TablePropertiesCollector* CreateTablePropertiesCollector(
TablePropertiesCollectorFactory::Context /*context*/) override {
num_created_++;
return new SstFileWriterCollector(prefix_);
}
const char* Name() const override { return "SstFileWriterCollectorFactory"; }
std::string prefix_;
uint32_t num_created_;
};
TEST_F(ExternalSSTFileTest, AddList) {
do {
Options options = CurrentOptions();
auto abc_collector = std::make_shared<SstFileWriterCollectorFactory>("abc");
auto xyz_collector = std::make_shared<SstFileWriterCollectorFactory>("xyz");
options.table_properties_collector_factories.emplace_back(abc_collector);
options.table_properties_collector_factories.emplace_back(xyz_collector);
SstFileWriter sst_file_writer(EnvOptions(), options);
// file1.sst (0 => 99)
std::string file1 = sst_files_dir_ + "file1.sst";
ASSERT_OK(sst_file_writer.Open(file1));
for (int k = 0; k < 100; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file1_info;
ASSERT_OK(sst_file_writer.Finish(&file1_info));
ASSERT_EQ(file1_info.file_path, file1);
ASSERT_EQ(file1_info.num_entries, 100);
ASSERT_EQ(file1_info.smallest_key, Key(0));
ASSERT_EQ(file1_info.largest_key, Key(99));
// sst_file_writer already finished, cannot add this value
ASSERT_NOK(sst_file_writer.Put(Key(100), "bad_val"));
// file2.sst (100 => 199)
std::string file2 = sst_files_dir_ + "file2.sst";
ASSERT_OK(sst_file_writer.Open(file2));
for (int k = 100; k < 200; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
// Cannot add this key because it's not after last added key
ASSERT_NOK(sst_file_writer.Put(Key(99), "bad_val"));
ExternalSstFileInfo file2_info;
ASSERT_OK(sst_file_writer.Finish(&file2_info));
ASSERT_EQ(file2_info.file_path, file2);
ASSERT_EQ(file2_info.num_entries, 100);
ASSERT_EQ(file2_info.smallest_key, Key(100));
ASSERT_EQ(file2_info.largest_key, Key(199));
// file3.sst (195 => 199)
// This file values overlap with file2 values
std::string file3 = sst_files_dir_ + "file3.sst";
ASSERT_OK(sst_file_writer.Open(file3));
for (int k = 195; k < 200; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val_overlap"));
}
ExternalSstFileInfo file3_info;
ASSERT_OK(sst_file_writer.Finish(&file3_info));
ASSERT_EQ(file3_info.file_path, file3);
ASSERT_EQ(file3_info.num_entries, 5);
ASSERT_EQ(file3_info.smallest_key, Key(195));
ASSERT_EQ(file3_info.largest_key, Key(199));
// file4.sst (30 => 39)
// This file values overlap with file1 values
std::string file4 = sst_files_dir_ + "file4.sst";
ASSERT_OK(sst_file_writer.Open(file4));
for (int k = 30; k < 40; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val_overlap"));
}
ExternalSstFileInfo file4_info;
ASSERT_OK(sst_file_writer.Finish(&file4_info));
ASSERT_EQ(file4_info.file_path, file4);
ASSERT_EQ(file4_info.num_entries, 10);
ASSERT_EQ(file4_info.smallest_key, Key(30));
ASSERT_EQ(file4_info.largest_key, Key(39));
// file5.sst (200 => 299)
std::string file5 = sst_files_dir_ + "file5.sst";
ASSERT_OK(sst_file_writer.Open(file5));
for (int k = 200; k < 300; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file5_info;
ASSERT_OK(sst_file_writer.Finish(&file5_info));
ASSERT_EQ(file5_info.file_path, file5);
ASSERT_EQ(file5_info.num_entries, 100);
ASSERT_EQ(file5_info.smallest_key, Key(200));
ASSERT_EQ(file5_info.largest_key, Key(299));
// file6.sst (delete 0 => 100)
std::string file6 = sst_files_dir_ + "file6.sst";
ASSERT_OK(sst_file_writer.Open(file6));
ASSERT_OK(sst_file_writer.DeleteRange(Key(0), Key(75)));
ASSERT_OK(sst_file_writer.DeleteRange(Key(25), Key(100)));
ExternalSstFileInfo file6_info;
ASSERT_OK(sst_file_writer.Finish(&file6_info));
ASSERT_EQ(file6_info.file_path, file6);
ASSERT_EQ(file6_info.num_entries, 0);
ASSERT_EQ(file6_info.smallest_key, "");
ASSERT_EQ(file6_info.largest_key, "");
ASSERT_EQ(file6_info.num_range_del_entries, 2);
ASSERT_EQ(file6_info.smallest_range_del_key, Key(0));
ASSERT_EQ(file6_info.largest_range_del_key, Key(100));
// file7.sst (delete 99 => 201)
std::string file7 = sst_files_dir_ + "file7.sst";
ASSERT_OK(sst_file_writer.Open(file7));
ASSERT_OK(sst_file_writer.DeleteRange(Key(99), Key(201)));
ExternalSstFileInfo file7_info;
ASSERT_OK(sst_file_writer.Finish(&file7_info));
ASSERT_EQ(file7_info.file_path, file7);
ASSERT_EQ(file7_info.num_entries, 0);
ASSERT_EQ(file7_info.smallest_key, "");
ASSERT_EQ(file7_info.largest_key, "");
ASSERT_EQ(file7_info.num_range_del_entries, 1);
ASSERT_EQ(file7_info.smallest_range_del_key, Key(99));
ASSERT_EQ(file7_info.largest_range_del_key, Key(201));
// list 1 has internal key range conflict
std::vector<std::string> file_list0({file1, file2});
std::vector<std::string> file_list1({file3, file2, file1});
std::vector<std::string> file_list2({file5});
std::vector<std::string> file_list3({file3, file4});
std::vector<std::string> file_list4({file5, file7});
std::vector<std::string> file_list5({file6, file7});
DestroyAndReopen(options);
// These lists of files have key ranges that overlap with each other
ASSERT_NOK(DeprecatedAddFile(file_list1));
// Both of the following overlap on the range deletion tombstone.
ASSERT_NOK(DeprecatedAddFile(file_list4));
ASSERT_NOK(DeprecatedAddFile(file_list5));
// Add files using file path list
ASSERT_OK(DeprecatedAddFile(file_list0));
ASSERT_EQ(db_->GetLatestSequenceNumber(), 0U);
for (int k = 0; k < 200; k++) {
ASSERT_EQ(Get(Key(k)), Key(k) + "_val");
}
TablePropertiesCollection props;
ASSERT_OK(db_->GetPropertiesOfAllTables(&props));
ASSERT_EQ(props.size(), 2);
for (auto file_props : props) {
auto user_props = file_props.second->user_collected_properties;
ASSERT_EQ(user_props["abc_SstFileWriterCollector"], "YES");
ASSERT_EQ(user_props["xyz_SstFileWriterCollector"], "YES");
ASSERT_EQ(user_props["abc_Count"], "100");
ASSERT_EQ(user_props["xyz_Count"], "100");
}
// Add file while holding a snapshot will fail
const Snapshot* s1 = db_->GetSnapshot();
if (s1 != nullptr) {
ASSERT_NOK(DeprecatedAddFile(file_list2));
db_->ReleaseSnapshot(s1);
}
// We can add the file after releaseing the snapshot
ASSERT_OK(DeprecatedAddFile(file_list2));
ASSERT_EQ(db_->GetLatestSequenceNumber(), 0U);
for (int k = 0; k < 300; k++) {
ASSERT_EQ(Get(Key(k)), Key(k) + "_val");
}
ASSERT_OK(db_->GetPropertiesOfAllTables(&props));
ASSERT_EQ(props.size(), 3);
for (auto file_props : props) {
auto user_props = file_props.second->user_collected_properties;
ASSERT_EQ(user_props["abc_SstFileWriterCollector"], "YES");
ASSERT_EQ(user_props["xyz_SstFileWriterCollector"], "YES");
ASSERT_EQ(user_props["abc_Count"], "100");
ASSERT_EQ(user_props["xyz_Count"], "100");
}
// This file list has overlapping values with the existing data
ASSERT_NOK(DeprecatedAddFile(file_list3));
// Overwrite values of keys divisible by 5
for (int k = 0; k < 200; k += 5) {
ASSERT_OK(Put(Key(k), Key(k) + "_val_new"));
}
ASSERT_NE(db_->GetLatestSequenceNumber(), 0U);
// Make sure values are correct before and after flush/compaction
for (int i = 0; i < 2; i++) {
for (int k = 0; k < 200; k++) {
std::string value = Key(k) + "_val";
if (k % 5 == 0) {
value += "_new";
}
ASSERT_EQ(Get(Key(k)), value);
}
for (int k = 200; k < 300; k++) {
std::string value = Key(k) + "_val";
ASSERT_EQ(Get(Key(k)), value);
}
ASSERT_OK(Flush());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
}
// Delete keys in range (200 => 299)
for (int k = 200; k < 300; k++) {
ASSERT_OK(Delete(Key(k)));
}
// We deleted range (200 => 299) but cannot add file5 because
// of the range tombstones
ASSERT_NOK(DeprecatedAddFile(file_list2));
// Compacting the DB will remove the tombstones
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
// Now we can add the file
ASSERT_OK(DeprecatedAddFile(file_list2));
// Verify values of file5 in DB
for (int k = 200; k < 300; k++) {
std::string value = Key(k) + "_val";
ASSERT_EQ(Get(Key(k)), value);
}
DestroyAndRecreateExternalSSTFilesDir();
} while (ChangeOptions(kSkipPlainTable | kSkipFIFOCompaction |
kRangeDelSkipConfigs));
}
TEST_F(ExternalSSTFileTest, AddListAtomicity) {
do {
Options options = CurrentOptions();
SstFileWriter sst_file_writer(EnvOptions(), options);
// files[0].sst (0 => 99)
// files[1].sst (100 => 199)
// ...
// file[8].sst (800 => 899)
int n = 9;
std::vector<std::string> files(n);
std::vector<ExternalSstFileInfo> files_info(n);
for (int i = 0; i < n; i++) {
files[i] = sst_files_dir_ + "file" + std::to_string(i) + ".sst";
ASSERT_OK(sst_file_writer.Open(files[i]));
for (int k = i * 100; k < (i + 1) * 100; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ASSERT_OK(sst_file_writer.Finish(&files_info[i]));
ASSERT_EQ(files_info[i].file_path, files[i]);
ASSERT_EQ(files_info[i].num_entries, 100);
ASSERT_EQ(files_info[i].smallest_key, Key(i * 100));
ASSERT_EQ(files_info[i].largest_key, Key((i + 1) * 100 - 1));
}
files.push_back(sst_files_dir_ + "file" + std::to_string(n) + ".sst");
ASSERT_NOK(DeprecatedAddFile(files));
for (int k = 0; k < n * 100; k++) {
ASSERT_EQ("NOT_FOUND", Get(Key(k)));
}
files.pop_back();
ASSERT_OK(DeprecatedAddFile(files));
for (int k = 0; k < n * 100; k++) {
std::string value = Key(k) + "_val";
ASSERT_EQ(Get(Key(k)), value);
}
DestroyAndRecreateExternalSSTFilesDir();
} while (ChangeOptions(kSkipPlainTable | kSkipFIFOCompaction));
}
// This test reporduce a bug that can happen in some cases if the DB started
// purging obsolete files when we are adding an external sst file.
// This situation may result in deleting the file while it's being added.
TEST_F(ExternalSSTFileTest, PurgeObsoleteFilesBug) {
Options options = CurrentOptions();
SstFileWriter sst_file_writer(EnvOptions(), options);
// file1.sst (0 => 500)
std::string sst_file_path = sst_files_dir_ + "file1.sst";
ASSERT_OK(sst_file_writer.Open(sst_file_path));
for (int i = 0; i < 500; i++) {
std::string k = Key(i);
ASSERT_OK(sst_file_writer.Put(k, k + "_val"));
}
ExternalSstFileInfo sst_file_info;
ASSERT_OK(sst_file_writer.Finish(&sst_file_info));
options.delete_obsolete_files_period_micros = 0;
options.disable_auto_compactions = true;
DestroyAndReopen(options);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"ExternalSstFileIngestionJob::Prepare:FileAdded", [&](void* /* arg */) {
ASSERT_OK(Put("aaa", "bbb"));
ASSERT_OK(Flush());
ASSERT_OK(Put("aaa", "xxx"));
ASSERT_OK(Flush());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
ASSERT_OK(DeprecatedAddFile({sst_file_path}));
for (int i = 0; i < 500; i++) {
std::string k = Key(i);
std::string v = k + "_val";
ASSERT_EQ(Get(k), v);
}
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(ExternalSSTFileTest, SkipSnapshot) {
Options options = CurrentOptions();
SstFileWriter sst_file_writer(EnvOptions(), options);
// file1.sst (0 => 99)
std::string file1 = sst_files_dir_ + "file1.sst";
ASSERT_OK(sst_file_writer.Open(file1));
for (int k = 0; k < 100; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file1_info;
ASSERT_OK(sst_file_writer.Finish(&file1_info));
ASSERT_EQ(file1_info.file_path, file1);
ASSERT_EQ(file1_info.num_entries, 100);
ASSERT_EQ(file1_info.smallest_key, Key(0));
ASSERT_EQ(file1_info.largest_key, Key(99));
// file2.sst (100 => 299)
std::string file2 = sst_files_dir_ + "file2.sst";
ASSERT_OK(sst_file_writer.Open(file2));
for (int k = 100; k < 300; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file2_info;
ASSERT_OK(sst_file_writer.Finish(&file2_info));
ASSERT_EQ(file2_info.file_path, file2);
ASSERT_EQ(file2_info.num_entries, 200);
ASSERT_EQ(file2_info.smallest_key, Key(100));
ASSERT_EQ(file2_info.largest_key, Key(299));
ASSERT_OK(DeprecatedAddFile({file1}));
// Add file will fail when holding snapshot and use the default
// skip_snapshot_check to false
const Snapshot* s1 = db_->GetSnapshot();
if (s1 != nullptr) {
ASSERT_NOK(DeprecatedAddFile({file2}));
}
// Add file will success when set skip_snapshot_check to true even db holding
// snapshot
if (s1 != nullptr) {
ASSERT_OK(DeprecatedAddFile({file2}, false, true));
db_->ReleaseSnapshot(s1);
}
// file3.sst (300 => 399)
std::string file3 = sst_files_dir_ + "file3.sst";
ASSERT_OK(sst_file_writer.Open(file3));
for (int k = 300; k < 400; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file3_info;
ASSERT_OK(sst_file_writer.Finish(&file3_info));
ASSERT_EQ(file3_info.file_path, file3);
ASSERT_EQ(file3_info.num_entries, 100);
ASSERT_EQ(file3_info.smallest_key, Key(300));
ASSERT_EQ(file3_info.largest_key, Key(399));
// check that we have change the old key
ASSERT_EQ(Get(Key(300)), "NOT_FOUND");
const Snapshot* s2 = db_->GetSnapshot();
ASSERT_OK(DeprecatedAddFile({file3}, false, true));
ASSERT_EQ(Get(Key(300)), Key(300) + ("_val"));
ASSERT_EQ(Get(Key(300), s2), Key(300) + ("_val"));
db_->ReleaseSnapshot(s2);
}
TEST_F(ExternalSSTFileTest, MultiThreaded) {
env_->skip_fsync_ = true;
// Bulk load 10 files every file contain 1000 keys
int num_files = 10;
int keys_per_file = 1000;
// Generate file names
std::vector<std::string> file_names;
for (int i = 0; i < num_files; i++) {
std::string file_name = "file_" + ToString(i) + ".sst";
file_names.push_back(sst_files_dir_ + file_name);
}
do {
Options options = CurrentOptions();
std::atomic<int> thread_num(0);
std::function<void()> write_file_func = [&]() {
int file_idx = thread_num.fetch_add(1);
int range_start = file_idx * keys_per_file;
int range_end = range_start + keys_per_file;
SstFileWriter sst_file_writer(EnvOptions(), options);
ASSERT_OK(sst_file_writer.Open(file_names[file_idx]));
for (int k = range_start; k < range_end; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k)));
}
ASSERT_OK(sst_file_writer.Finish());
};
// Write num_files files in parallel
std::vector<port::Thread> sst_writer_threads;
for (int i = 0; i < num_files; ++i) {
sst_writer_threads.emplace_back(write_file_func);
}
for (auto& t : sst_writer_threads) {
t.join();
}
fprintf(stderr, "Wrote %d files (%d keys)\n", num_files,
num_files * keys_per_file);
thread_num.store(0);
std::atomic<int> files_added(0);
// Thread 0 -> Load {f0,f1}
// Thread 1 -> Load {f0,f1}
// Thread 2 -> Load {f2,f3}
// Thread 3 -> Load {f2,f3}
// Thread 4 -> Load {f4,f5}
// Thread 5 -> Load {f4,f5}
// ...
std::function<void()> load_file_func = [&]() {
// We intentionally add every file twice, and assert that it was added
// only once and the other add failed
int thread_id = thread_num.fetch_add(1);
int file_idx = (thread_id / 2) * 2;
// sometimes we use copy, sometimes link .. the result should be the same
bool move_file = (thread_id % 3 == 0);
std::vector<std::string> files_to_add;
files_to_add = {file_names[file_idx]};
if (static_cast<size_t>(file_idx + 1) < file_names.size()) {
files_to_add.push_back(file_names[file_idx + 1]);
}
Status s = DeprecatedAddFile(files_to_add, move_file);
if (s.ok()) {
files_added += static_cast<int>(files_to_add.size());
}
};
// Bulk load num_files files in parallel
std::vector<port::Thread> add_file_threads;
DestroyAndReopen(options);
for (int i = 0; i < num_files; ++i) {
add_file_threads.emplace_back(load_file_func);
}
for (auto& t : add_file_threads) {
t.join();
}
ASSERT_EQ(files_added.load(), num_files);
fprintf(stderr, "Loaded %d files (%d keys)\n", num_files,
num_files * keys_per_file);
// Overwrite values of keys divisible by 100
for (int k = 0; k < num_files * keys_per_file; k += 100) {
std::string key = Key(k);
ASSERT_OK(Put(key, key + "_new"));
}
for (int i = 0; i < 2; i++) {
// Make sure the values are correct before and after flush/compaction
for (int k = 0; k < num_files * keys_per_file; ++k) {
std::string key = Key(k);
std::string value = (k % 100 == 0) ? (key + "_new") : key;
ASSERT_EQ(Get(key), value);
}
ASSERT_OK(Flush());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
}
fprintf(stderr, "Verified %d values\n", num_files * keys_per_file);
DestroyAndRecreateExternalSSTFilesDir();
} while (ChangeOptions(kSkipPlainTable | kSkipFIFOCompaction));
}
TEST_F(ExternalSSTFileTest, OverlappingRanges) {
env_->skip_fsync_ = true;
Random rnd(301);
SequenceNumber assigned_seqno = 0;
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"ExternalSstFileIngestionJob::Run", [&assigned_seqno](void* arg) {
ASSERT_TRUE(arg != nullptr);
assigned_seqno = *(static_cast<SequenceNumber*>(arg));
});
bool need_flush = false;
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"DBImpl::IngestExternalFile:NeedFlush", [&need_flush](void* arg) {
ASSERT_TRUE(arg != nullptr);
need_flush = *(static_cast<bool*>(arg));
});
bool overlap_with_db = false;
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"ExternalSstFileIngestionJob::AssignLevelAndSeqnoForIngestedFile",
[&overlap_with_db](void* arg) {
ASSERT_TRUE(arg != nullptr);
overlap_with_db = *(static_cast<bool*>(arg));
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
do {
Options options = CurrentOptions();
env_->skip_fsync_ = true;
DestroyAndReopen(options);
SstFileWriter sst_file_writer(EnvOptions(), options);
printf("Option config = %d\n", option_config_);
std::vector<std::pair<int, int>> key_ranges;
for (int i = 0; i < 100; i++) {
int range_start = rnd.Uniform(20000);
int keys_per_range = 10 + rnd.Uniform(41);
key_ranges.emplace_back(range_start, range_start + keys_per_range);
}
int memtable_add = 0;
int success_add_file = 0;
int failed_add_file = 0;
std::map<std::string, std::string> true_data;
for (size_t i = 0; i < key_ranges.size(); i++) {
int range_start = key_ranges[i].first;
int range_end = key_ranges[i].second;
Status s;
std::string range_val = "range_" + ToString(i);
// For 20% of ranges we use DB::Put, for 80% we use DB::AddFile
if (i && i % 5 == 0) {
// Use DB::Put to insert range (insert into memtable)
range_val += "_put";
for (int k = range_start; k <= range_end; k++) {
s = Put(Key(k), range_val);
ASSERT_OK(s);
}
memtable_add++;
} else {
// Use DB::AddFile to insert range
range_val += "_add_file";
// Generate the file containing the range
std::string file_name = sst_files_dir_ + env_->GenerateUniqueId();
s = sst_file_writer.Open(file_name);
ASSERT_OK(s);
for (int k = range_start; k <= range_end; k++) {
s = sst_file_writer.Put(Key(k), range_val);
ASSERT_OK(s);
}
ExternalSstFileInfo file_info;
s = sst_file_writer.Finish(&file_info);
ASSERT_OK(s);
// Insert the generated file
s = DeprecatedAddFile({file_name});
auto it = true_data.lower_bound(Key(range_start));
if (option_config_ != kUniversalCompaction &&
option_config_ != kUniversalCompactionMultiLevel &&
option_config_ != kUniversalSubcompactions) {
if (it != true_data.end() && it->first <= Key(range_end)) {
// This range overlap with data already exist in DB
ASSERT_NOK(s);
failed_add_file++;
} else {
ASSERT_OK(s);
success_add_file++;
}
} else {
if ((it != true_data.end() && it->first <= Key(range_end)) ||
need_flush || assigned_seqno > 0 || overlap_with_db) {
// This range overlap with data already exist in DB
ASSERT_NOK(s);
failed_add_file++;
} else {
ASSERT_OK(s);
success_add_file++;
}
}
}
if (s.ok()) {
// Update true_data map to include the new inserted data
for (int k = range_start; k <= range_end; k++) {
true_data[Key(k)] = range_val;
}
}
// Flush / Compact the DB
if (i && i % 50 == 0) {
ASSERT_OK(Flush());
}
if (i && i % 75 == 0) {
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
}
}
printf("Total: %" ROCKSDB_PRIszt
" ranges\n"
"AddFile()|Success: %d ranges\n"
"AddFile()|RangeConflict: %d ranges\n"
"Put(): %d ranges\n",
key_ranges.size(), success_add_file, failed_add_file, memtable_add);
// Verify the correctness of the data
for (const auto& kv : true_data) {
ASSERT_EQ(Get(kv.first), kv.second);
}
printf("keys/values verified\n");
DestroyAndRecreateExternalSSTFilesDir();
} while (ChangeOptions(kSkipPlainTable | kSkipFIFOCompaction));
}
TEST_P(ExternalSSTFileTest, PickedLevel) {
env_->skip_fsync_ = true;
Options options = CurrentOptions();
options.disable_auto_compactions = false;
options.level0_file_num_compaction_trigger = 4;
options.num_levels = 4;
DestroyAndReopen(options);
std::map<std::string, std::string> true_data;
// File 0 will go to last level (L3)
ASSERT_OK(GenerateAndAddExternalFile(options, {1, 10}, -1, false, false, true,
false, false, &true_data));
EXPECT_EQ(FilesPerLevel(), "0,0,0,1");
// File 1 will go to level L2 (since it overlap with file 0 in L3)
ASSERT_OK(GenerateAndAddExternalFile(options, {2, 9}, -1, false, false, true,
false, false, &true_data));
EXPECT_EQ(FilesPerLevel(), "0,0,1,1");
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
{"ExternalSSTFileTest::PickedLevel:0", "BackgroundCallCompaction:0"},
{"DBImpl::BackgroundCompaction:Start",
"ExternalSSTFileTest::PickedLevel:1"},
{"ExternalSSTFileTest::PickedLevel:2",
"DBImpl::BackgroundCompaction:NonTrivial:AfterRun"},
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
// Flush 4 files containing the same keys
for (int i = 0; i < 4; i++) {
ASSERT_OK(Put(Key(3), Key(3) + "put"));
ASSERT_OK(Put(Key(8), Key(8) + "put"));
true_data[Key(3)] = Key(3) + "put";
true_data[Key(8)] = Key(8) + "put";
ASSERT_OK(Flush());
}
// Wait for BackgroundCompaction() to be called
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevel:0");
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevel:1");
EXPECT_EQ(FilesPerLevel(), "4,0,1,1");
// This file overlaps with file 0 (L3), file 1 (L2) and the
// output of compaction going to L1
ASSERT_OK(GenerateAndAddExternalFile(options, {4, 7}, -1, false, false, true,
false, false, &true_data));
EXPECT_EQ(FilesPerLevel(), "5,0,1,1");
// This file does not overlap with any file or with the running compaction
ASSERT_OK(GenerateAndAddExternalFile(options, {9000, 9001}, -1, false, false,
false, false, false, &true_data));
EXPECT_EQ(FilesPerLevel(), "5,0,1,2");
// Hold compaction from finishing
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevel:2");
ASSERT_OK(dbfull()->TEST_WaitForCompact());
EXPECT_EQ(FilesPerLevel(), "1,1,1,2");
size_t kcnt = 0;
VerifyDBFromMap(true_data, &kcnt, false);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(ExternalSSTFileTest, PickedLevelBug) {
env_->skip_fsync_ = true;
Options options = CurrentOptions();
options.disable_auto_compactions = false;
options.level0_file_num_compaction_trigger = 3;
options.num_levels = 2;
DestroyAndReopen(options);
std::vector<int> file_keys;
// file #1 in L0
file_keys = {0, 5, 7};
for (int k : file_keys) {
ASSERT_OK(Put(Key(k), Key(k)));
}
ASSERT_OK(Flush());
// file #2 in L0
file_keys = {4, 6, 8, 9};
for (int k : file_keys) {
ASSERT_OK(Put(Key(k), Key(k)));
}
ASSERT_OK(Flush());
// We have 2 overlapping files in L0
EXPECT_EQ(FilesPerLevel(), "2");
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
{{"DBImpl::IngestExternalFile:AfterIncIngestFileCounter",
"ExternalSSTFileTest::PickedLevelBug:0"},
{"ExternalSSTFileTest::PickedLevelBug:1", "DBImpl::AddFile:MutexUnlock"},
{"ExternalSSTFileTest::PickedLevelBug:2",
"DBImpl::RunManualCompaction:0"},
{"ExternalSSTFileTest::PickedLevelBug:3",
"DBImpl::RunManualCompaction:1"}});
std::atomic<bool> bg_compact_started(false);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"DBImpl::BackgroundCompaction:Start",
[&](void* /*arg*/) { bg_compact_started.store(true); });
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
Status bg_compact_status;
Status bg_addfile_status;
{
// While writing the MANIFEST start a thread that will ask for compaction
ThreadGuard bg_compact(port::Thread([&]() {
bg_compact_status =
db_->CompactRange(CompactRangeOptions(), nullptr, nullptr);
}));
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevelBug:2");
// Start a thread that will ingest a new file
ThreadGuard bg_addfile(port::Thread([&]() {
file_keys = {1, 2, 3};
bg_addfile_status = GenerateAndAddExternalFile(options, file_keys, 1);
}));
// Wait for AddFile to start picking levels and writing MANIFEST
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevelBug:0");
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevelBug:3");
// We need to verify that no compactions can run while AddFile is
// ingesting the files into the levels it find suitable. So we will
// wait for 2 seconds to give a chance for compactions to run during
// this period, and then make sure that no compactions where able to run
env_->SleepForMicroseconds(1000000 * 2);
bool bg_compact_started_tmp = bg_compact_started.load();
// Hold AddFile from finishing writing the MANIFEST
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevelBug:1");
// check the status at the end, so even if the ASSERT fails the threads
// could be joined and return.
ASSERT_FALSE(bg_compact_started_tmp);
}
ASSERT_OK(bg_addfile_status);
ASSERT_OK(bg_compact_status);
ASSERT_OK(dbfull()->TEST_WaitForCompact());
int total_keys = 0;
Iterator* iter = db_->NewIterator(ReadOptions());
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
ASSERT_OK(iter->status());
total_keys++;
}
ASSERT_EQ(total_keys, 10);
delete iter;
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(ExternalSSTFileTest, IngestNonExistingFile) {
Options options = CurrentOptions();
DestroyAndReopen(options);
Status s = db_->IngestExternalFile({"non_existing_file"},
IngestExternalFileOptions());
ASSERT_NOK(s);
// Verify file deletion is not impacted (verify a bug fix)
ASSERT_OK(Put(Key(1), Key(1)));
ASSERT_OK(Put(Key(9), Key(9)));
ASSERT_OK(Flush());
ASSERT_OK(Put(Key(1), Key(1)));
ASSERT_OK(Put(Key(9), Key(9)));
ASSERT_OK(Flush());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_OK(dbfull()->TEST_WaitForCompact(true));
// After full compaction, there should be only 1 file.
std::vector<std::string> files;
ASSERT_OK(env_->GetChildren(dbname_, &files));
int num_sst_files = 0;
for (auto& f : files) {
uint64_t number;
FileType type;
if (ParseFileName(f, &number, &type) && type == kTableFile) {
num_sst_files++;
}
}
ASSERT_EQ(1, num_sst_files);
}
#if !defined(ROCKSDB_VALGRIND_RUN) || defined(ROCKSDB_FULL_VALGRIND_RUN)
TEST_F(ExternalSSTFileTest, CompactDuringAddFileRandom) {
env_->skip_fsync_ = true;
Options options = CurrentOptions();
options.disable_auto_compactions = false;
options.level0_file_num_compaction_trigger = 2;
options.num_levels = 2;
DestroyAndReopen(options);
std::function<void()> bg_compact = [&]() {
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
};
int range_id = 0;
std::vector<int> file_keys;
std::function<void()> bg_addfile = [&]() {
ASSERT_OK(GenerateAndAddExternalFile(options, file_keys, range_id));
};
const int num_of_ranges = 1000;
std::vector<port::Thread> threads;
while (range_id < num_of_ranges) {
int range_start = range_id * 10;
int range_end = range_start + 10;
file_keys.clear();
for (int k = range_start + 1; k < range_end; k++) {
file_keys.push_back(k);
}
ASSERT_OK(Put(Key(range_start), Key(range_start)));
ASSERT_OK(Put(Key(range_end), Key(range_end)));
ASSERT_OK(Flush());
if (range_id % 10 == 0) {
threads.emplace_back(bg_compact);
}
threads.emplace_back(bg_addfile);
for (auto& t : threads) {
t.join();
}
threads.clear();
range_id++;
}
for (int rid = 0; rid < num_of_ranges; rid++) {
int range_start = rid * 10;
int range_end = range_start + 10;
ASSERT_EQ(Get(Key(range_start)), Key(range_start)) << rid;
ASSERT_EQ(Get(Key(range_end)), Key(range_end)) << rid;
for (int k = range_start + 1; k < range_end; k++) {
std::string v = Key(k) + ToString(rid);
ASSERT_EQ(Get(Key(k)), v) << rid;
}
}
}
#endif // !defined(ROCKSDB_VALGRIND_RUN) || defined(ROCKSDB_FULL_VALGRIND_RUN)
TEST_F(ExternalSSTFileTest, PickedLevelDynamic) {
env_->skip_fsync_ = true;
Options options = CurrentOptions();
options.disable_auto_compactions = false;
options.level0_file_num_compaction_trigger = 4;
options.level_compaction_dynamic_level_bytes = true;
options.num_levels = 4;
DestroyAndReopen(options);
std::map<std::string, std::string> true_data;
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
{"ExternalSSTFileTest::PickedLevelDynamic:0",
"BackgroundCallCompaction:0"},
{"DBImpl::BackgroundCompaction:Start",
"ExternalSSTFileTest::PickedLevelDynamic:1"},
{"ExternalSSTFileTest::PickedLevelDynamic:2",
"DBImpl::BackgroundCompaction:NonTrivial:AfterRun"},
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
// Flush 4 files containing the same keys
for (int i = 0; i < 4; i++) {
for (int k = 20; k <= 30; k++) {
ASSERT_OK(Put(Key(k), Key(k) + "put"));
true_data[Key(k)] = Key(k) + "put";
}
for (int k = 50; k <= 60; k++) {
ASSERT_OK(Put(Key(k), Key(k) + "put"));
true_data[Key(k)] = Key(k) + "put";
}
ASSERT_OK(Flush());
}
// Wait for BackgroundCompaction() to be called
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevelDynamic:0");
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevelDynamic:1");
// This file overlaps with the output of the compaction (going to L3)
// so the file will be added to L0 since L3 is the base level
ASSERT_OK(GenerateAndAddExternalFile(options, {31, 32, 33, 34}, -1, false,
false, true, false, false, &true_data));
EXPECT_EQ(FilesPerLevel(), "5");
// This file does not overlap with the current running compactiong
ASSERT_OK(GenerateAndAddExternalFile(options, {9000, 9001}, -1, false, false,
true, false, false, &true_data));
EXPECT_EQ(FilesPerLevel(), "5,0,0,1");
// Hold compaction from finishing
TEST_SYNC_POINT("ExternalSSTFileTest::PickedLevelDynamic:2");
// Output of the compaction will go to L3
ASSERT_OK(dbfull()->TEST_WaitForCompact());
EXPECT_EQ(FilesPerLevel(), "1,0,0,2");
Close();
options.disable_auto_compactions = true;
Reopen(options);
ASSERT_OK(GenerateAndAddExternalFile(options, {1, 15, 19}, -1, false, false,
true, false, false, &true_data));
ASSERT_EQ(FilesPerLevel(), "1,0,0,3");
ASSERT_OK(GenerateAndAddExternalFile(options, {1000, 1001, 1002}, -1, false,
false, true, false, false, &true_data));
ASSERT_EQ(FilesPerLevel(), "1,0,0,4");
ASSERT_OK(GenerateAndAddExternalFile(options, {500, 600, 700}, -1, false,
false, true, false, false, &true_data));
ASSERT_EQ(FilesPerLevel(), "1,0,0,5");
// File 5 overlaps with file 2 (L3 / base level)
ASSERT_OK(GenerateAndAddExternalFile(options, {2, 10}, -1, false, false, true,
false, false, &true_data));
ASSERT_EQ(FilesPerLevel(), "2,0,0,5");
// File 6 overlaps with file 2 (L3 / base level) and file 5 (L0)
ASSERT_OK(GenerateAndAddExternalFile(options, {3, 9}, -1, false, false, true,
false, false, &true_data));
ASSERT_EQ(FilesPerLevel(), "3,0,0,5");
// Verify data in files
size_t kcnt = 0;
VerifyDBFromMap(true_data, &kcnt, false);
// Write range [5 => 10] to L0
for (int i = 5; i <= 10; i++) {
std::string k = Key(i);
std::string v = k + "put";
ASSERT_OK(Put(k, v));
true_data[k] = v;
}
ASSERT_OK(Flush());
ASSERT_EQ(FilesPerLevel(), "4,0,0,5");
// File 7 overlaps with file 4 (L3)
ASSERT_OK(GenerateAndAddExternalFile(options, {650, 651, 652}, -1, false,
false, true, false, false, &true_data));
ASSERT_EQ(FilesPerLevel(), "5,0,0,5");
VerifyDBFromMap(true_data, &kcnt, false);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(ExternalSSTFileTest, AddExternalSstFileWithCustomCompartor) {
Options options = CurrentOptions();
options.comparator = ReverseBytewiseComparator();
DestroyAndReopen(options);
SstFileWriter sst_file_writer(EnvOptions(), options);
// Generate files with these key ranges
// {14 -> 0}
// {24 -> 10}
// {34 -> 20}
// {44 -> 30}
// ..
std::vector<std::string> generated_files;
for (int i = 0; i < 10; i++) {
std::string file_name = sst_files_dir_ + env_->GenerateUniqueId();
ASSERT_OK(sst_file_writer.Open(file_name));
int range_end = i * 10;
int range_start = range_end + 15;
for (int k = (range_start - 1); k >= range_end; k--) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k)));
}
ExternalSstFileInfo file_info;
ASSERT_OK(sst_file_writer.Finish(&file_info));
generated_files.push_back(file_name);
}
std::vector<std::string> in_files;
// These 2nd and 3rd files overlap with each other
in_files = {generated_files[0], generated_files[4], generated_files[5],
generated_files[7]};
ASSERT_NOK(DeprecatedAddFile(in_files));
// These 2 files don't overlap with each other
in_files = {generated_files[0], generated_files[2]};
ASSERT_OK(DeprecatedAddFile(in_files));
// These 2 files don't overlap with each other but overlap with keys in DB
in_files = {generated_files[3], generated_files[7]};
ASSERT_NOK(DeprecatedAddFile(in_files));
// Files don't overlap and don't overlap with DB key range
in_files = {generated_files[4], generated_files[6], generated_files[8]};
ASSERT_OK(DeprecatedAddFile(in_files));
for (int i = 0; i < 100; i++) {
if (i % 20 <= 14) {
ASSERT_EQ(Get(Key(i)), Key(i));
} else {
ASSERT_EQ(Get(Key(i)), "NOT_FOUND");
}
}
}
TEST_F(ExternalSSTFileTest, AddFileTrivialMoveBug) {
Options options = CurrentOptions();
options.num_levels = 3;
options.IncreaseParallelism(20);
DestroyAndReopen(options);
ASSERT_OK(GenerateAndAddExternalFile(options, {1, 4}, 1)); // L3
ASSERT_OK(GenerateAndAddExternalFile(options, {2, 3}, 2)); // L2
ASSERT_OK(GenerateAndAddExternalFile(options, {10, 14}, 3)); // L3
ASSERT_OK(GenerateAndAddExternalFile(options, {12, 13}, 4)); // L2
ASSERT_OK(GenerateAndAddExternalFile(options, {20, 24}, 5)); // L3
ASSERT_OK(GenerateAndAddExternalFile(options, {22, 23}, 6)); // L2
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"CompactionJob::Run():Start", [&](void* /*arg*/) {
// fit in L3 but will overlap with compaction so will be added
// to L2 but a compaction will trivially move it to L3
// and break LSM consistency
static std::atomic<bool> called = {false};
if (!called) {
called = true;
ASSERT_OK(dbfull()->SetOptions({{"max_bytes_for_level_base", "1"}}));
ASSERT_OK(GenerateAndAddExternalFile(options, {15, 16}, 7));
}
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
CompactRangeOptions cro;
cro.exclusive_manual_compaction = false;
ASSERT_OK(db_->CompactRange(cro, nullptr, nullptr));
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(ExternalSSTFileTest, CompactAddedFiles) {
Options options = CurrentOptions();
options.num_levels = 3;
DestroyAndReopen(options);
ASSERT_OK(GenerateAndAddExternalFile(options, {1, 10}, 1)); // L3
ASSERT_OK(GenerateAndAddExternalFile(options, {2, 9}, 2)); // L2
ASSERT_OK(GenerateAndAddExternalFile(options, {3, 8}, 3)); // L1
ASSERT_OK(GenerateAndAddExternalFile(options, {4, 7}, 4)); // L0
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
}
TEST_F(ExternalSSTFileTest, SstFileWriterNonSharedKeys) {
Options options = CurrentOptions();
DestroyAndReopen(options);
std::string file_path = sst_files_dir_ + "/not_shared";
SstFileWriter sst_file_writer(EnvOptions(), options);
std::string suffix(100, 'X');
ASSERT_OK(sst_file_writer.Open(file_path));
ASSERT_OK(sst_file_writer.Put("A" + suffix, "VAL"));
ASSERT_OK(sst_file_writer.Put("BB" + suffix, "VAL"));
ASSERT_OK(sst_file_writer.Put("CC" + suffix, "VAL"));
ASSERT_OK(sst_file_writer.Put("CXD" + suffix, "VAL"));
ASSERT_OK(sst_file_writer.Put("CZZZ" + suffix, "VAL"));
ASSERT_OK(sst_file_writer.Put("ZAAAX" + suffix, "VAL"));
ASSERT_OK(sst_file_writer.Finish());
ASSERT_OK(DeprecatedAddFile({file_path}));
}
TEST_F(ExternalSSTFileTest, WithUnorderedWrite) {
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->LoadDependency(
{{"DBImpl::WriteImpl:UnorderedWriteAfterWriteWAL",
"ExternalSSTFileTest::WithUnorderedWrite:WaitWriteWAL"},
{"DBImpl::WaitForPendingWrites:BeforeBlock",
"DBImpl::WriteImpl:BeforeUnorderedWriteMemtable"}});
SyncPoint::GetInstance()->SetCallBack(
"DBImpl::IngestExternalFile:NeedFlush", [&](void* need_flush) {
ASSERT_TRUE(*reinterpret_cast<bool*>(need_flush));
});
Options options = CurrentOptions();
options.unordered_write = true;
DestroyAndReopen(options);
ASSERT_OK(Put("foo", "v1"));
SyncPoint::GetInstance()->EnableProcessing();
port::Thread writer([&]() { ASSERT_OK(Put("bar", "v2")); });
TEST_SYNC_POINT("ExternalSSTFileTest::WithUnorderedWrite:WaitWriteWAL");
ASSERT_OK(GenerateAndAddExternalFile(options, {{"bar", "v3"}}, -1,
true /* allow_global_seqno */));
ASSERT_EQ(Get("bar"), "v3");
writer.join();
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
}
#if !defined(ROCKSDB_VALGRIND_RUN) || defined(ROCKSDB_FULL_VALGRIND_RUN)
TEST_P(ExternalSSTFileTest, IngestFileWithGlobalSeqnoRandomized) {
env_->skip_fsync_ = true;
Options options = CurrentOptions();
options.IncreaseParallelism(20);
options.level0_slowdown_writes_trigger = 256;
options.level0_stop_writes_trigger = 256;
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
for (int iter = 0; iter < 2; iter++) {
bool write_to_memtable = (iter == 0);
DestroyAndReopen(options);
Random rnd(301);
std::map<std::string, std::string> true_data;
for (int i = 0; i < 500; i++) {
std::vector<std::pair<std::string, std::string>> random_data;
for (int j = 0; j < 100; j++) {
std::string k = rnd.RandomString(rnd.Next() % 20);
std::string v = rnd.RandomString(rnd.Next() % 50);
random_data.emplace_back(k, v);
}
if (write_to_memtable && rnd.OneIn(4)) {
// 25% of writes go through memtable
for (auto& entry : random_data) {
ASSERT_OK(Put(entry.first, entry.second));
true_data[entry.first] = entry.second;
}
} else {
ASSERT_OK(GenerateAndAddExternalFile(
options, random_data, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, true, &true_data));
}
}
size_t kcnt = 0;
VerifyDBFromMap(true_data, &kcnt, false);
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
VerifyDBFromMap(true_data, &kcnt, false);
}
}
#endif // !defined(ROCKSDB_VALGRIND_RUN) || defined(ROCKSDB_FULL_VALGRIND_RUN)
TEST_P(ExternalSSTFileTest, IngestFileWithGlobalSeqnoAssignedLevel) {
Options options = CurrentOptions();
options.num_levels = 5;
options.disable_auto_compactions = true;
DestroyAndReopen(options);
std::vector<std::pair<std::string, std::string>> file_data;
std::map<std::string, std::string> true_data;
// Insert 100 -> 200 into the memtable
for (int i = 100; i <= 200; i++) {
ASSERT_OK(Put(Key(i), "memtable"));
true_data[Key(i)] = "memtable";
}
// Insert 0 -> 20 using AddFile
file_data.clear();
for (int i = 0; i <= 20; i++) {
file_data.emplace_back(Key(i), "L4");
}
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
ASSERT_OK(GenerateAndAddExternalFile(
options, file_data, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false, &true_data));
// This file don't overlap with anything in the DB, will go to L4
ASSERT_EQ("0,0,0,0,1", FilesPerLevel());
// Insert 80 -> 130 using AddFile
file_data.clear();
for (int i = 80; i <= 130; i++) {
file_data.emplace_back(Key(i), "L0");
}
ASSERT_OK(GenerateAndAddExternalFile(
options, file_data, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false, &true_data));
// This file overlap with the memtable, so it will flush it and add
// it self to L0
ASSERT_EQ("2,0,0,0,1", FilesPerLevel());
// Insert 30 -> 50 using AddFile
file_data.clear();
for (int i = 30; i <= 50; i++) {
file_data.emplace_back(Key(i), "L4");
}
ASSERT_OK(GenerateAndAddExternalFile(
options, file_data, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false, &true_data));
// This file don't overlap with anything in the DB and fit in L4 as well
ASSERT_EQ("2,0,0,0,2", FilesPerLevel());
// Insert 10 -> 40 using AddFile
file_data.clear();
for (int i = 10; i <= 40; i++) {
file_data.emplace_back(Key(i), "L3");
}
ASSERT_OK(GenerateAndAddExternalFile(
options, file_data, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false, &true_data));
// This file overlap with files in L4, we will ingest it in L3
ASSERT_EQ("2,0,0,1,2", FilesPerLevel());
size_t kcnt = 0;
VerifyDBFromMap(true_data, &kcnt, false);
}
TEST_P(ExternalSSTFileTest, IngestFileWithGlobalSeqnoMemtableFlush) {
Options options = CurrentOptions();
DestroyAndReopen(options);
uint64_t entries_in_memtable;
std::map<std::string, std::string> true_data;
for (int k : {10, 20, 40, 80}) {
ASSERT_OK(Put(Key(k), "memtable"));
true_data[Key(k)] = "memtable";
}
ASSERT_TRUE(db_->GetIntProperty(DB::Properties::kNumEntriesActiveMemTable,
&entries_in_memtable));
ASSERT_GE(entries_in_memtable, 1);
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
// No need for flush
ASSERT_OK(GenerateAndAddExternalFile(
options, {90, 100, 110}, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false, &true_data));
ASSERT_TRUE(db_->GetIntProperty(DB::Properties::kNumEntriesActiveMemTable,
&entries_in_memtable));
ASSERT_GE(entries_in_memtable, 1);
// This file will flush the memtable
ASSERT_OK(GenerateAndAddExternalFile(
options, {19, 20, 21}, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false, &true_data));
ASSERT_TRUE(db_->GetIntProperty(DB::Properties::kNumEntriesActiveMemTable,
&entries_in_memtable));
ASSERT_EQ(entries_in_memtable, 0);
for (int k : {200, 201, 205, 206}) {
ASSERT_OK(Put(Key(k), "memtable"));
true_data[Key(k)] = "memtable";
}
ASSERT_TRUE(db_->GetIntProperty(DB::Properties::kNumEntriesActiveMemTable,
&entries_in_memtable));
ASSERT_GE(entries_in_memtable, 1);
// No need for flush, this file keys fit between the memtable keys
ASSERT_OK(GenerateAndAddExternalFile(
options, {202, 203, 204}, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false, &true_data));
ASSERT_TRUE(db_->GetIntProperty(DB::Properties::kNumEntriesActiveMemTable,
&entries_in_memtable));
ASSERT_GE(entries_in_memtable, 1);
// This file will flush the memtable
ASSERT_OK(GenerateAndAddExternalFile(
options, {206, 207}, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false, &true_data));
ASSERT_TRUE(db_->GetIntProperty(DB::Properties::kNumEntriesActiveMemTable,
&entries_in_memtable));
ASSERT_EQ(entries_in_memtable, 0);
size_t kcnt = 0;
VerifyDBFromMap(true_data, &kcnt, false);
}
TEST_P(ExternalSSTFileTest, L0SortingIssue) {
Options options = CurrentOptions();
options.num_levels = 2;
DestroyAndReopen(options);
std::map<std::string, std::string> true_data;
ASSERT_OK(Put(Key(1), "memtable"));
ASSERT_OK(Put(Key(10), "memtable"));
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
// No Flush needed, No global seqno needed, Ingest in L1
ASSERT_OK(
GenerateAndAddExternalFile(options, {7, 8}, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false));
// No Flush needed, but need a global seqno, Ingest in L0
ASSERT_OK(
GenerateAndAddExternalFile(options, {7, 8}, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, false));
printf("%s\n", FilesPerLevel().c_str());
// Overwrite what we added using external files
ASSERT_OK(Put(Key(7), "memtable"));
ASSERT_OK(Put(Key(8), "memtable"));
// Read values from memtable
ASSERT_EQ(Get(Key(7)), "memtable");
ASSERT_EQ(Get(Key(8)), "memtable");
// Flush and read from L0
ASSERT_OK(Flush());
printf("%s\n", FilesPerLevel().c_str());
ASSERT_EQ(Get(Key(7)), "memtable");
ASSERT_EQ(Get(Key(8)), "memtable");
}
TEST_F(ExternalSSTFileTest, CompactionDeadlock) {
Options options = CurrentOptions();
options.num_levels = 2;
options.level0_file_num_compaction_trigger = 4;
options.level0_slowdown_writes_trigger = 4;
options.level0_stop_writes_trigger = 4;
DestroyAndReopen(options);
// atomic conter of currently running bg threads
std::atomic<int> running_threads(0);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
{"DBImpl::DelayWrite:Wait", "ExternalSSTFileTest::DeadLock:0"},
{"ExternalSSTFileTest::DeadLock:1", "DBImpl::AddFile:Start"},
{"DBImpl::AddFile:MutexLock", "ExternalSSTFileTest::DeadLock:2"},
{"ExternalSSTFileTest::DeadLock:3", "BackgroundCallCompaction:0"},
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
// Start ingesting and extrnal file in the background
ROCKSDB_NAMESPACE::port::Thread bg_ingest_file([&]() {
running_threads += 1;
ASSERT_OK(GenerateAndAddExternalFile(options, {5, 6}));
running_threads -= 1;
});
ASSERT_OK(Put(Key(1), "memtable"));
ASSERT_OK(Flush());
ASSERT_OK(Put(Key(2), "memtable"));
ASSERT_OK(Flush());
ASSERT_OK(Put(Key(3), "memtable"));
ASSERT_OK(Flush());
ASSERT_OK(Put(Key(4), "memtable"));
ASSERT_OK(Flush());
// This thread will try to insert into the memtable but since we have 4 L0
// files this thread will be blocked and hold the writer thread
ROCKSDB_NAMESPACE::port::Thread bg_block_put([&]() {
running_threads += 1;
ASSERT_OK(Put(Key(10), "memtable"));
running_threads -= 1;
});
// Make sure DelayWrite is called first
TEST_SYNC_POINT("ExternalSSTFileTest::DeadLock:0");
// `DBImpl::AddFile:Start` will wait until we be here
TEST_SYNC_POINT("ExternalSSTFileTest::DeadLock:1");
// Wait for IngestExternalFile() to start and aquire mutex
TEST_SYNC_POINT("ExternalSSTFileTest::DeadLock:2");
// Now let compaction start
TEST_SYNC_POINT("ExternalSSTFileTest::DeadLock:3");
// Wait for max 5 seconds, if we did not finish all bg threads
// then we hit the deadlock bug
for (int i = 0; i < 10; i++) {
if (running_threads.load() == 0) {
break;
}
// Make sure we do a "real sleep", not a mock one.
SystemClock::Default()->SleepForMicroseconds(500000);
}
ASSERT_EQ(running_threads.load(), 0);
bg_ingest_file.join();
bg_block_put.join();
}
TEST_F(ExternalSSTFileTest, DirtyExit) {
Options options = CurrentOptions();
DestroyAndReopen(options);
std::string file_path = sst_files_dir_ + "/dirty_exit";
std::unique_ptr<SstFileWriter> sst_file_writer;
// Destruct SstFileWriter without calling Finish()
sst_file_writer.reset(new SstFileWriter(EnvOptions(), options));
ASSERT_OK(sst_file_writer->Open(file_path));
sst_file_writer.reset();
// Destruct SstFileWriter with a failing Finish
sst_file_writer.reset(new SstFileWriter(EnvOptions(), options));
ASSERT_OK(sst_file_writer->Open(file_path));
ASSERT_NOK(sst_file_writer->Finish());
}
TEST_F(ExternalSSTFileTest, FileWithCFInfo) {
Options options = CurrentOptions();
CreateAndReopenWithCF({"koko", "toto"}, options);
SstFileWriter sfw_default(EnvOptions(), options, handles_[0]);
SstFileWriter sfw_cf1(EnvOptions(), options, handles_[1]);
SstFileWriter sfw_cf2(EnvOptions(), options, handles_[2]);
SstFileWriter sfw_unknown(EnvOptions(), options);
// default_cf.sst
const std::string cf_default_sst = sst_files_dir_ + "/default_cf.sst";
ASSERT_OK(sfw_default.Open(cf_default_sst));
ASSERT_OK(sfw_default.Put("K1", "V1"));
ASSERT_OK(sfw_default.Put("K2", "V2"));
ASSERT_OK(sfw_default.Finish());
// cf1.sst
const std::string cf1_sst = sst_files_dir_ + "/cf1.sst";
ASSERT_OK(sfw_cf1.Open(cf1_sst));
ASSERT_OK(sfw_cf1.Put("K3", "V1"));
ASSERT_OK(sfw_cf1.Put("K4", "V2"));
ASSERT_OK(sfw_cf1.Finish());
// cf_unknown.sst
const std::string unknown_sst = sst_files_dir_ + "/cf_unknown.sst";
ASSERT_OK(sfw_unknown.Open(unknown_sst));
ASSERT_OK(sfw_unknown.Put("K5", "V1"));
ASSERT_OK(sfw_unknown.Put("K6", "V2"));
ASSERT_OK(sfw_unknown.Finish());
IngestExternalFileOptions ifo;
// SST CF don't match
ASSERT_NOK(db_->IngestExternalFile(handles_[0], {cf1_sst}, ifo));
// SST CF don't match
ASSERT_NOK(db_->IngestExternalFile(handles_[2], {cf1_sst}, ifo));
// SST CF match
ASSERT_OK(db_->IngestExternalFile(handles_[1], {cf1_sst}, ifo));
// SST CF don't match
ASSERT_NOK(db_->IngestExternalFile(handles_[1], {cf_default_sst}, ifo));
// SST CF don't match
ASSERT_NOK(db_->IngestExternalFile(handles_[2], {cf_default_sst}, ifo));
// SST CF match
ASSERT_OK(db_->IngestExternalFile(handles_[0], {cf_default_sst}, ifo));
// SST CF unknown
ASSERT_OK(db_->IngestExternalFile(handles_[1], {unknown_sst}, ifo));
// SST CF unknown
ASSERT_OK(db_->IngestExternalFile(handles_[2], {unknown_sst}, ifo));
// SST CF unknown
ASSERT_OK(db_->IngestExternalFile(handles_[0], {unknown_sst}, ifo));
// Cannot ingest a file into a dropped CF
ASSERT_OK(db_->DropColumnFamily(handles_[1]));
ASSERT_NOK(db_->IngestExternalFile(handles_[1], {unknown_sst}, ifo));
// CF was not dropped, ok to Ingest
ASSERT_OK(db_->IngestExternalFile(handles_[2], {unknown_sst}, ifo));
}
/*
* Test and verify the functionality of ingestion_options.move_files and
* ingestion_options.failed_move_fall_back_to_copy
*/
TEST_P(ExternSSTFileLinkFailFallbackTest, LinkFailFallBackExternalSst) {
const bool fail_link = std::get<0>(GetParam());
const bool failed_move_fall_back_to_copy = std::get<1>(GetParam());
test_env_->set_fail_link(fail_link);
const EnvOptions env_options;
DestroyAndReopen(options_);
const int kNumKeys = 10000;
IngestExternalFileOptions ifo;
ifo.move_files = true;
ifo.failed_move_fall_back_to_copy = failed_move_fall_back_to_copy;
std::string file_path = sst_files_dir_ + "file1.sst";
// Create SstFileWriter for default column family
SstFileWriter sst_file_writer(env_options, options_);
ASSERT_OK(sst_file_writer.Open(file_path));
for (int i = 0; i < kNumKeys; i++) {
ASSERT_OK(sst_file_writer.Put(Key(i), Key(i) + "_value"));
}
ASSERT_OK(sst_file_writer.Finish());
uint64_t file_size = 0;
ASSERT_OK(env_->GetFileSize(file_path, &file_size));
bool copyfile = false;
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"ExternalSstFileIngestionJob::Prepare:CopyFile",
[&](void* /* arg */) { copyfile = true; });
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
const Status s = db_->IngestExternalFile({file_path}, ifo);
ColumnFamilyHandleImpl* cfh =
static_cast<ColumnFamilyHandleImpl*>(dbfull()->DefaultColumnFamily());
ColumnFamilyData* cfd = cfh->cfd();
const InternalStats* internal_stats_ptr = cfd->internal_stats();
const std::vector<InternalStats::CompactionStats>& comp_stats =
internal_stats_ptr->TEST_GetCompactionStats();
uint64_t bytes_copied = 0;
uint64_t bytes_moved = 0;
for (const auto& stats : comp_stats) {
bytes_copied += stats.bytes_written;
bytes_moved += stats.bytes_moved;
}
if (!fail_link) {
// Link operation succeeds. External SST should be moved.
ASSERT_OK(s);
ASSERT_EQ(0, bytes_copied);
ASSERT_EQ(file_size, bytes_moved);
ASSERT_FALSE(copyfile);
} else {
// Link operation fails.
ASSERT_EQ(0, bytes_moved);
if (failed_move_fall_back_to_copy) {
ASSERT_OK(s);
// Copy file is true since a failed link falls back to copy file.
ASSERT_TRUE(copyfile);
ASSERT_EQ(file_size, bytes_copied);
} else {
ASSERT_TRUE(s.IsNotSupported());
// Copy file is false since a failed link does not fall back to copy file.
ASSERT_FALSE(copyfile);
ASSERT_EQ(0, bytes_copied);
}
}
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
}
class TestIngestExternalFileListener : public EventListener {
public:
void OnExternalFileIngested(DB* /*db*/,
const ExternalFileIngestionInfo& info) override {
ingested_files.push_back(info);
}
std::vector<ExternalFileIngestionInfo> ingested_files;
};
TEST_P(ExternalSSTFileTest, IngestionListener) {
Options options = CurrentOptions();
TestIngestExternalFileListener* listener =
new TestIngestExternalFileListener();
options.listeners.emplace_back(listener);
CreateAndReopenWithCF({"koko", "toto"}, options);
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
// Ingest into default cf
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 2}, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, true, nullptr, handles_[0]));
ASSERT_EQ(listener->ingested_files.size(), 1);
ASSERT_EQ(listener->ingested_files.back().cf_name, "default");
ASSERT_EQ(listener->ingested_files.back().global_seqno, 0);
ASSERT_EQ(listener->ingested_files.back().table_properties.column_family_id,
0);
ASSERT_EQ(listener->ingested_files.back().table_properties.column_family_name,
"default");
// Ingest into cf1
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 2}, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, true, nullptr, handles_[1]));
ASSERT_EQ(listener->ingested_files.size(), 2);
ASSERT_EQ(listener->ingested_files.back().cf_name, "koko");
ASSERT_EQ(listener->ingested_files.back().global_seqno, 0);
ASSERT_EQ(listener->ingested_files.back().table_properties.column_family_id,
1);
ASSERT_EQ(listener->ingested_files.back().table_properties.column_family_name,
"koko");
// Ingest into cf2
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 2}, -1, true, write_global_seqno,
verify_checksums_before_ingest, false, true, nullptr, handles_[2]));
ASSERT_EQ(listener->ingested_files.size(), 3);
ASSERT_EQ(listener->ingested_files.back().cf_name, "toto");
ASSERT_EQ(listener->ingested_files.back().global_seqno, 0);
ASSERT_EQ(listener->ingested_files.back().table_properties.column_family_id,
2);
ASSERT_EQ(listener->ingested_files.back().table_properties.column_family_name,
"toto");
}
TEST_F(ExternalSSTFileTest, SnapshotInconsistencyBug) {
Options options = CurrentOptions();
DestroyAndReopen(options);
const int kNumKeys = 10000;
// Insert keys using normal path and take a snapshot
for (int i = 0; i < kNumKeys; i++) {
ASSERT_OK(Put(Key(i), Key(i) + "_V1"));
}
const Snapshot* snap = db_->GetSnapshot();
// Overwrite all keys using IngestExternalFile
std::string sst_file_path = sst_files_dir_ + "file1.sst";
SstFileWriter sst_file_writer(EnvOptions(), options);
ASSERT_OK(sst_file_writer.Open(sst_file_path));
for (int i = 0; i < kNumKeys; i++) {
ASSERT_OK(sst_file_writer.Put(Key(i), Key(i) + "_V2"));
}
ASSERT_OK(sst_file_writer.Finish());
IngestExternalFileOptions ifo;
ifo.move_files = true;
ASSERT_OK(db_->IngestExternalFile({sst_file_path}, ifo));
for (int i = 0; i < kNumKeys; i++) {
ASSERT_EQ(Get(Key(i), snap), Key(i) + "_V1");
ASSERT_EQ(Get(Key(i)), Key(i) + "_V2");
}
db_->ReleaseSnapshot(snap);
}
TEST_P(ExternalSSTFileTest, IngestBehind) {
Options options = CurrentOptions();
options.compaction_style = kCompactionStyleUniversal;
options.num_levels = 3;
options.disable_auto_compactions = false;
DestroyAndReopen(options);
std::vector<std::pair<std::string, std::string>> file_data;
std::map<std::string, std::string> true_data;
// Insert 100 -> 200 into the memtable
for (int i = 100; i <= 200; i++) {
ASSERT_OK(Put(Key(i), "memtable"));
true_data[Key(i)] = "memtable";
}
// Insert 100 -> 200 using IngestExternalFile
file_data.clear();
for (int i = 0; i <= 20; i++) {
file_data.emplace_back(Key(i), "ingest_behind");
}
bool allow_global_seqno = true;
bool ingest_behind = true;
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
// Can't ingest behind since allow_ingest_behind isn't set to true
ASSERT_NOK(GenerateAndAddExternalFile(
options, file_data, -1, allow_global_seqno, write_global_seqno,
verify_checksums_before_ingest, ingest_behind, false /*sort_data*/,
&true_data));
options.allow_ingest_behind = true;
// check that we still can open the DB, as num_levels should be
// sanitized to 3
options.num_levels = 2;
DestroyAndReopen(options);
options.num_levels = 3;
DestroyAndReopen(options);
// Insert 100 -> 200 into the memtable
for (int i = 100; i <= 200; i++) {
ASSERT_OK(Put(Key(i), "memtable"));
true_data[Key(i)] = "memtable";
}
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
// Universal picker should go at second from the bottom level
ASSERT_EQ("0,1", FilesPerLevel());
ASSERT_OK(GenerateAndAddExternalFile(
options, file_data, -1, allow_global_seqno, write_global_seqno,
verify_checksums_before_ingest, true /*ingest_behind*/,
false /*sort_data*/, &true_data));
ASSERT_EQ("0,1,1", FilesPerLevel());
// this time ingest should fail as the file doesn't fit to the bottom level
ASSERT_NOK(GenerateAndAddExternalFile(
options, file_data, -1, allow_global_seqno, write_global_seqno,
verify_checksums_before_ingest, true /*ingest_behind*/,
false /*sort_data*/, &true_data));
ASSERT_EQ("0,1,1", FilesPerLevel());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
// bottom level should be empty
ASSERT_EQ("0,1", FilesPerLevel());
size_t kcnt = 0;
VerifyDBFromMap(true_data, &kcnt, false);
}
TEST_F(ExternalSSTFileTest, SkipBloomFilter) {
Options options = CurrentOptions();
BlockBasedTableOptions table_options;
table_options.filter_policy.reset(NewBloomFilterPolicy(10));
table_options.cache_index_and_filter_blocks = true;
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
// Create external SST file and include bloom filters
options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
DestroyAndReopen(options);
{
std::string file_path = sst_files_dir_ + "sst_with_bloom.sst";
SstFileWriter sst_file_writer(EnvOptions(), options);
ASSERT_OK(sst_file_writer.Open(file_path));
ASSERT_OK(sst_file_writer.Put("Key1", "Value1"));
ASSERT_OK(sst_file_writer.Finish());
ASSERT_OK(
db_->IngestExternalFile({file_path}, IngestExternalFileOptions()));
ASSERT_EQ(Get("Key1"), "Value1");
ASSERT_GE(
options.statistics->getTickerCount(Tickers::BLOCK_CACHE_FILTER_ADD), 1);
}
// Create external SST file but skip bloom filters
options.statistics = ROCKSDB_NAMESPACE::CreateDBStatistics();
DestroyAndReopen(options);
{
std::string file_path = sst_files_dir_ + "sst_with_no_bloom.sst";
SstFileWriter sst_file_writer(EnvOptions(), options, nullptr, true,
Env::IOPriority::IO_TOTAL,
true /* skip_filters */);
ASSERT_OK(sst_file_writer.Open(file_path));
ASSERT_OK(sst_file_writer.Put("Key1", "Value1"));
ASSERT_OK(sst_file_writer.Finish());
ASSERT_OK(
db_->IngestExternalFile({file_path}, IngestExternalFileOptions()));
ASSERT_EQ(Get("Key1"), "Value1");
ASSERT_EQ(
options.statistics->getTickerCount(Tickers::BLOCK_CACHE_FILTER_ADD), 0);
}
}
TEST_F(ExternalSSTFileTest, IngestFileWrittenWithCompressionDictionary) {
if (!ZSTD_Supported()) {
return;
}
const int kNumEntries = 1 << 10;
const int kNumBytesPerEntry = 1 << 10;
Options options = CurrentOptions();
options.compression = kZSTD;
options.compression_opts.max_dict_bytes = 1 << 14; // 16KB
options.compression_opts.zstd_max_train_bytes = 1 << 18; // 256KB
DestroyAndReopen(options);
std::atomic<int> num_compression_dicts(0);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"BlockBasedTableBuilder::WriteCompressionDictBlock:RawDict",
[&](void* /* arg */) { ++num_compression_dicts; });
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
Random rnd(301);
std::vector<std::pair<std::string, std::string>> random_data;
for (int i = 0; i < kNumEntries; i++) {
std::string val = rnd.RandomString(kNumBytesPerEntry);
random_data.emplace_back(Key(i), std::move(val));
}
ASSERT_OK(GenerateAndAddExternalFile(options, std::move(random_data)));
ASSERT_EQ(1, num_compression_dicts);
}
// Very slow, not worth the cost to run regularly
TEST_F(ExternalSSTFileTest, DISABLED_HugeBlockChecksum) {
int max_checksum = static_cast<int>(kxxHash64);
for (int i = 0; i <= max_checksum; ++i) {
BlockBasedTableOptions table_options;
table_options.checksum = static_cast<ChecksumType>(i);
Options options = CurrentOptions();
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
SstFileWriter sst_file_writer(EnvOptions(), options);
// 2^32 - 1, will lead to data block with more than 2^32 bytes
size_t huge_size = port::kMaxUint32;
std::string f = sst_files_dir_ + "f.sst";
ASSERT_OK(sst_file_writer.Open(f));
{
Random64 r(123);
std::string huge(huge_size, 0);
for (size_t j = 0; j + 7 < huge_size; j += 8) {
EncodeFixed64(&huge[j], r.Next());
}
ASSERT_OK(sst_file_writer.Put("Huge", huge));
}
ExternalSstFileInfo f_info;
ASSERT_OK(sst_file_writer.Finish(&f_info));
ASSERT_GT(f_info.file_size, uint64_t{huge_size} + 10);
SstFileReader sst_file_reader(options);
ASSERT_OK(sst_file_reader.Open(f));
ASSERT_OK(sst_file_reader.VerifyChecksum());
}
}
TEST_P(ExternalSSTFileTest, IngestFilesIntoMultipleColumnFamilies_Success) {
std::unique_ptr<FaultInjectionTestEnv> fault_injection_env(
new FaultInjectionTestEnv(env_));
Options options = CurrentOptions();
options.env = fault_injection_env.get();
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
// Exercise different situations in different column families: two are empty
// (so no new sequence number is needed), but at least one overlaps with the
// DB and needs to bump the sequence number.
ASSERT_OK(db_->Put(WriteOptions(), "foo1", "oldvalue"));
std::vector<ColumnFamilyHandle*> column_families;
column_families.push_back(handles_[0]);
column_families.push_back(handles_[1]);
column_families.push_back(handles_[2]);
std::vector<IngestExternalFileOptions> ifos(column_families.size());
for (auto& ifo : ifos) {
ifo.allow_global_seqno = true; // Always allow global_seqno
// May or may not write global_seqno
ifo.write_global_seqno = std::get<0>(GetParam());
// Whether to verify checksums before ingestion
ifo.verify_checksums_before_ingest = std::get<1>(GetParam());
}
std::vector<std::vector<std::pair<std::string, std::string>>> data;
data.push_back(
{std::make_pair("foo1", "fv1"), std::make_pair("foo2", "fv2")});
data.push_back(
{std::make_pair("bar1", "bv1"), std::make_pair("bar2", "bv2")});
data.push_back(
{std::make_pair("bar3", "bv3"), std::make_pair("bar4", "bv4")});
// Resize the true_data vector upon construction to avoid re-alloc
std::vector<std::map<std::string, std::string>> true_data(
column_families.size());
ASSERT_OK(GenerateAndAddExternalFiles(options, column_families, ifos, data,
-1, true, true_data));
Close();
ReopenWithColumnFamilies({kDefaultColumnFamilyName, "pikachu", "eevee"},
options);
ASSERT_EQ(3, handles_.size());
int cf = 0;
for (const auto& verify_map : true_data) {
for (const auto& elem : verify_map) {
const std::string& key = elem.first;
const std::string& value = elem.second;
ASSERT_EQ(value, Get(cf, key));
}
++cf;
}
Close();
Destroy(options, true /* delete_cf_paths */);
}
TEST_P(ExternalSSTFileTest,
IngestFilesIntoMultipleColumnFamilies_NoMixedStateWithSnapshot) {
std::unique_ptr<FaultInjectionTestEnv> fault_injection_env(
new FaultInjectionTestEnv(env_));
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->LoadDependency({
{"DBImpl::IngestExternalFiles:InstallSVForFirstCF:0",
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_MixedState:"
"BeforeRead"},
{"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_MixedState:"
"AfterRead",
"DBImpl::IngestExternalFiles:InstallSVForFirstCF:1"},
});
SyncPoint::GetInstance()->EnableProcessing();
Options options = CurrentOptions();
options.env = fault_injection_env.get();
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
const std::vector<std::map<std::string, std::string>> data_before_ingestion =
{{{"foo1", "fv1_0"}, {"foo2", "fv2_0"}, {"foo3", "fv3_0"}},
{{"bar1", "bv1_0"}, {"bar2", "bv2_0"}, {"bar3", "bv3_0"}},
{{"bar4", "bv4_0"}, {"bar5", "bv5_0"}, {"bar6", "bv6_0"}}};
for (size_t i = 0; i != handles_.size(); ++i) {
int cf = static_cast<int>(i);
const auto& orig_data = data_before_ingestion[i];
for (const auto& kv : orig_data) {
ASSERT_OK(Put(cf, kv.first, kv.second));
}
ASSERT_OK(Flush(cf));
}
std::vector<ColumnFamilyHandle*> column_families;
column_families.push_back(handles_[0]);
column_families.push_back(handles_[1]);
column_families.push_back(handles_[2]);
std::vector<IngestExternalFileOptions> ifos(column_families.size());
for (auto& ifo : ifos) {
ifo.allow_global_seqno = true; // Always allow global_seqno
// May or may not write global_seqno
ifo.write_global_seqno = std::get<0>(GetParam());
// Whether to verify checksums before ingestion
ifo.verify_checksums_before_ingest = std::get<1>(GetParam());
}
std::vector<std::vector<std::pair<std::string, std::string>>> data;
data.push_back(
{std::make_pair("foo1", "fv1"), std::make_pair("foo2", "fv2")});
data.push_back(
{std::make_pair("bar1", "bv1"), std::make_pair("bar2", "bv2")});
data.push_back(
{std::make_pair("bar3", "bv3"), std::make_pair("bar4", "bv4")});
// Resize the true_data vector upon construction to avoid re-alloc
std::vector<std::map<std::string, std::string>> true_data(
column_families.size());
// Take snapshot before ingestion starts
ReadOptions read_opts;
read_opts.total_order_seek = true;
read_opts.snapshot = dbfull()->GetSnapshot();
std::vector<Iterator*> iters(handles_.size());
// Range scan checks first kv of each CF before ingestion starts.
for (size_t i = 0; i != handles_.size(); ++i) {
iters[i] = dbfull()->NewIterator(read_opts, handles_[i]);
iters[i]->SeekToFirst();
ASSERT_TRUE(iters[i]->Valid());
const std::string& key = iters[i]->key().ToString();
const std::string& value = iters[i]->value().ToString();
const std::map<std::string, std::string>& orig_data =
data_before_ingestion[i];
std::map<std::string, std::string>::const_iterator it = orig_data.find(key);
ASSERT_NE(orig_data.end(), it);
ASSERT_EQ(it->second, value);
iters[i]->Next();
}
port::Thread ingest_thread([&]() {
ASSERT_OK(GenerateAndAddExternalFiles(options, column_families, ifos, data,
-1, true, true_data));
});
TEST_SYNC_POINT(
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_MixedState:"
"BeforeRead");
// Should see only data before ingestion
for (size_t i = 0; i != handles_.size(); ++i) {
const auto& orig_data = data_before_ingestion[i];
for (; iters[i]->Valid(); iters[i]->Next()) {
const std::string& key = iters[i]->key().ToString();
const std::string& value = iters[i]->value().ToString();
std::map<std::string, std::string>::const_iterator it =
orig_data.find(key);
ASSERT_NE(orig_data.end(), it);
ASSERT_EQ(it->second, value);
}
}
TEST_SYNC_POINT(
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_MixedState:"
"AfterRead");
ingest_thread.join();
for (auto* iter : iters) {
delete iter;
}
iters.clear();
dbfull()->ReleaseSnapshot(read_opts.snapshot);
Close();
ReopenWithColumnFamilies({kDefaultColumnFamilyName, "pikachu", "eevee"},
options);
// Should see consistent state after ingestion for all column families even
// without snapshot.
ASSERT_EQ(3, handles_.size());
int cf = 0;
for (const auto& verify_map : true_data) {
for (const auto& elem : verify_map) {
const std::string& key = elem.first;
const std::string& value = elem.second;
ASSERT_EQ(value, Get(cf, key));
}
++cf;
}
Close();
Destroy(options, true /* delete_cf_paths */);
}
TEST_P(ExternalSSTFileTest, IngestFilesIntoMultipleColumnFamilies_PrepareFail) {
std::unique_ptr<FaultInjectionTestEnv> fault_injection_env(
new FaultInjectionTestEnv(env_));
Options options = CurrentOptions();
options.env = fault_injection_env.get();
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->LoadDependency({
{"DBImpl::IngestExternalFiles:BeforeLastJobPrepare:0",
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_PrepareFail:"
"0"},
{"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies:PrepareFail:"
"1",
"DBImpl::IngestExternalFiles:BeforeLastJobPrepare:1"},
});
SyncPoint::GetInstance()->EnableProcessing();
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
std::vector<ColumnFamilyHandle*> column_families;
column_families.push_back(handles_[0]);
column_families.push_back(handles_[1]);
column_families.push_back(handles_[2]);
std::vector<IngestExternalFileOptions> ifos(column_families.size());
for (auto& ifo : ifos) {
ifo.allow_global_seqno = true; // Always allow global_seqno
// May or may not write global_seqno
ifo.write_global_seqno = std::get<0>(GetParam());
// Whether to verify block checksums before ingest
ifo.verify_checksums_before_ingest = std::get<1>(GetParam());
}
std::vector<std::vector<std::pair<std::string, std::string>>> data;
data.push_back(
{std::make_pair("foo1", "fv1"), std::make_pair("foo2", "fv2")});
data.push_back(
{std::make_pair("bar1", "bv1"), std::make_pair("bar2", "bv2")});
data.push_back(
{std::make_pair("bar3", "bv3"), std::make_pair("bar4", "bv4")});
// Resize the true_data vector upon construction to avoid re-alloc
std::vector<std::map<std::string, std::string>> true_data(
column_families.size());
port::Thread ingest_thread([&]() {
ASSERT_NOK(GenerateAndAddExternalFiles(options, column_families, ifos, data,
-1, true, true_data));
});
TEST_SYNC_POINT(
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_PrepareFail:"
"0");
fault_injection_env->SetFilesystemActive(false);
TEST_SYNC_POINT(
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies:PrepareFail:"
"1");
ingest_thread.join();
fault_injection_env->SetFilesystemActive(true);
Close();
ReopenWithColumnFamilies({kDefaultColumnFamilyName, "pikachu", "eevee"},
options);
ASSERT_EQ(3, handles_.size());
int cf = 0;
for (const auto& verify_map : true_data) {
for (const auto& elem : verify_map) {
const std::string& key = elem.first;
ASSERT_EQ("NOT_FOUND", Get(cf, key));
}
++cf;
}
Close();
Destroy(options, true /* delete_cf_paths */);
}
TEST_P(ExternalSSTFileTest, IngestFilesIntoMultipleColumnFamilies_CommitFail) {
std::unique_ptr<FaultInjectionTestEnv> fault_injection_env(
new FaultInjectionTestEnv(env_));
Options options = CurrentOptions();
options.env = fault_injection_env.get();
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->LoadDependency({
{"DBImpl::IngestExternalFiles:BeforeJobsRun:0",
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_CommitFail:"
"0"},
{"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_CommitFail:"
"1",
"DBImpl::IngestExternalFiles:BeforeJobsRun:1"},
});
SyncPoint::GetInstance()->EnableProcessing();
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
std::vector<ColumnFamilyHandle*> column_families;
column_families.push_back(handles_[0]);
column_families.push_back(handles_[1]);
column_families.push_back(handles_[2]);
std::vector<IngestExternalFileOptions> ifos(column_families.size());
for (auto& ifo : ifos) {
ifo.allow_global_seqno = true; // Always allow global_seqno
// May or may not write global_seqno
ifo.write_global_seqno = std::get<0>(GetParam());
// Whether to verify block checksums before ingestion
ifo.verify_checksums_before_ingest = std::get<1>(GetParam());
}
std::vector<std::vector<std::pair<std::string, std::string>>> data;
data.push_back(
{std::make_pair("foo1", "fv1"), std::make_pair("foo2", "fv2")});
data.push_back(
{std::make_pair("bar1", "bv1"), std::make_pair("bar2", "bv2")});
data.push_back(
{std::make_pair("bar3", "bv3"), std::make_pair("bar4", "bv4")});
// Resize the true_data vector upon construction to avoid re-alloc
std::vector<std::map<std::string, std::string>> true_data(
column_families.size());
port::Thread ingest_thread([&]() {
ASSERT_NOK(GenerateAndAddExternalFiles(options, column_families, ifos, data,
-1, true, true_data));
});
TEST_SYNC_POINT(
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_CommitFail:"
"0");
fault_injection_env->SetFilesystemActive(false);
TEST_SYNC_POINT(
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_CommitFail:"
"1");
ingest_thread.join();
fault_injection_env->SetFilesystemActive(true);
Close();
ReopenWithColumnFamilies({kDefaultColumnFamilyName, "pikachu", "eevee"},
options);
ASSERT_EQ(3, handles_.size());
int cf = 0;
for (const auto& verify_map : true_data) {
for (const auto& elem : verify_map) {
const std::string& key = elem.first;
ASSERT_EQ("NOT_FOUND", Get(cf, key));
}
++cf;
}
Close();
Destroy(options, true /* delete_cf_paths */);
}
TEST_P(ExternalSSTFileTest,
IngestFilesIntoMultipleColumnFamilies_PartialManifestWriteFail) {
std::unique_ptr<FaultInjectionTestEnv> fault_injection_env(
new FaultInjectionTestEnv(env_));
Options options = CurrentOptions();
options.env = fault_injection_env.get();
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
SyncPoint::GetInstance()->ClearTrace();
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->LoadDependency({
{"VersionSet::ProcessManifestWrites:BeforeWriteLastVersionEdit:0",
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_"
"PartialManifestWriteFail:0"},
{"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_"
"PartialManifestWriteFail:1",
"VersionSet::ProcessManifestWrites:BeforeWriteLastVersionEdit:1"},
});
SyncPoint::GetInstance()->EnableProcessing();
std::vector<ColumnFamilyHandle*> column_families;
column_families.push_back(handles_[0]);
column_families.push_back(handles_[1]);
column_families.push_back(handles_[2]);
std::vector<IngestExternalFileOptions> ifos(column_families.size());
for (auto& ifo : ifos) {
ifo.allow_global_seqno = true; // Always allow global_seqno
// May or may not write global_seqno
ifo.write_global_seqno = std::get<0>(GetParam());
// Whether to verify block checksums before ingestion
ifo.verify_checksums_before_ingest = std::get<1>(GetParam());
}
std::vector<std::vector<std::pair<std::string, std::string>>> data;
data.push_back(
{std::make_pair("foo1", "fv1"), std::make_pair("foo2", "fv2")});
data.push_back(
{std::make_pair("bar1", "bv1"), std::make_pair("bar2", "bv2")});
data.push_back(
{std::make_pair("bar3", "bv3"), std::make_pair("bar4", "bv4")});
// Resize the true_data vector upon construction to avoid re-alloc
std::vector<std::map<std::string, std::string>> true_data(
column_families.size());
port::Thread ingest_thread([&]() {
ASSERT_NOK(GenerateAndAddExternalFiles(options, column_families, ifos, data,
-1, true, true_data));
});
TEST_SYNC_POINT(
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_"
"PartialManifestWriteFail:0");
fault_injection_env->SetFilesystemActive(false);
TEST_SYNC_POINT(
"ExternalSSTFileTest::IngestFilesIntoMultipleColumnFamilies_"
"PartialManifestWriteFail:1");
ingest_thread.join();
ASSERT_OK(fault_injection_env->DropUnsyncedFileData());
fault_injection_env->SetFilesystemActive(true);
Close();
ReopenWithColumnFamilies({kDefaultColumnFamilyName, "pikachu", "eevee"},
options);
ASSERT_EQ(3, handles_.size());
int cf = 0;
for (const auto& verify_map : true_data) {
for (const auto& elem : verify_map) {
const std::string& key = elem.first;
ASSERT_EQ("NOT_FOUND", Get(cf, key));
}
++cf;
}
Close();
Destroy(options, true /* delete_cf_paths */);
}
TEST_P(ExternalSSTFileTest, IngestFilesTriggerFlushingWithTwoWriteQueue) {
Options options = CurrentOptions();
// Use large buffer to avoid memtable flush
options.write_buffer_size = 1024 * 1024;
options.two_write_queues = true;
DestroyAndReopen(options);
ASSERT_OK(dbfull()->Put(WriteOptions(), "1000", "v1"));
ASSERT_OK(dbfull()->Put(WriteOptions(), "1001", "v1"));
ASSERT_OK(dbfull()->Put(WriteOptions(), "9999", "v1"));
// Put one key which is overlap with keys in memtable.
// It will trigger flushing memtable and require this thread is
// currently at the front of the 2nd writer queue. We must make
// sure that it won't enter the 2nd writer queue for the second time.
std::vector<std::pair<std::string, std::string>> data;
data.push_back(std::make_pair("1001", "v2"));
ASSERT_OK(GenerateAndAddExternalFile(options, data, -1, true));
}
TEST_P(ExternalSSTFileTest, DeltaEncodingWhileGlobalSeqnoPresent) {
Options options = CurrentOptions();
DestroyAndReopen(options);
constexpr size_t kValueSize = 8;
Random rnd(301);
std::string value = rnd.RandomString(kValueSize);
// Write some key to make global seqno larger than zero
for (int i = 0; i < 10; i++) {
ASSERT_OK(Put("ab" + Key(i), value));
}
// Get a Snapshot to make RocksDB assign global seqno to ingested sst files.
auto snap = dbfull()->GetSnapshot();
std::string fname = sst_files_dir_ + "test_file";
ROCKSDB_NAMESPACE::SstFileWriter writer(EnvOptions(), options);
ASSERT_OK(writer.Open(fname));
std::string key1 = "ab";
std::string key2 = "ab";
// Make the prefix of key2 is same with key1 add zero seqno. The tail of every
// key is composed as (seqno << 8 | value_type), and here `1` represents
// ValueType::kTypeValue
PutFixed64(&key2, PackSequenceAndType(0, kTypeValue));
key2 += "cdefghijkl";
ASSERT_OK(writer.Put(key1, value));
ASSERT_OK(writer.Put(key2, value));
ExternalSstFileInfo info;
ASSERT_OK(writer.Finish(&info));
ASSERT_OK(dbfull()->IngestExternalFile({info.file_path},
IngestExternalFileOptions()));
dbfull()->ReleaseSnapshot(snap);
ASSERT_EQ(value, Get(key1));
// You will get error here
ASSERT_EQ(value, Get(key2));
}
TEST_P(ExternalSSTFileTest,
DeltaEncodingWhileGlobalSeqnoPresentIteratorSwitch) {
// Regression test for bug where global seqno corrupted the shared bytes
// buffer when switching from reverse iteration to forward iteration.
constexpr size_t kValueSize = 8;
Options options = CurrentOptions();
Random rnd(301);
std::string value = rnd.RandomString(kValueSize);
std::string key0 = "aa";
std::string key1 = "ab";
// Make the prefix of key2 is same with key1 add zero seqno. The tail of every
// key is composed as (seqno << 8 | value_type), and here `1` represents
// ValueType::kTypeValue
std::string key2 = "ab";
PutFixed64(&key2, PackSequenceAndType(0, kTypeValue));
key2 += "cdefghijkl";
std::string key3 = key2 + "_";
// Write some key to make global seqno larger than zero
ASSERT_OK(Put(key0, value));
std::string fname = sst_files_dir_ + "test_file";
ROCKSDB_NAMESPACE::SstFileWriter writer(EnvOptions(), options);
ASSERT_OK(writer.Open(fname));
// key0 is a dummy to ensure the turnaround point (key1) comes from Prev
// cache rather than block (restart keys are pinned in block).
ASSERT_OK(writer.Put(key0, value));
ASSERT_OK(writer.Put(key1, value));
ASSERT_OK(writer.Put(key2, value));
ASSERT_OK(writer.Put(key3, value));
ExternalSstFileInfo info;
ASSERT_OK(writer.Finish(&info));
ASSERT_OK(dbfull()->IngestExternalFile({info.file_path},
IngestExternalFileOptions()));
ReadOptions read_opts;
// Prevents Seek() when switching directions, which circumvents the bug.
read_opts.total_order_seek = true;
Iterator* iter = db_->NewIterator(read_opts);
// Scan backwards to key2. File iterator will then be positioned at key1.
iter->Seek(key3);
ASSERT_EQ(key3, iter->key());
iter->Prev();
ASSERT_EQ(key2, iter->key());
// Scan forwards and make sure key3 is present. Previously key3 would be
// corrupted by the global seqno from key1.
iter->Next();
ASSERT_EQ(key3, iter->key());
delete iter;
}
INSTANTIATE_TEST_CASE_P(ExternalSSTFileTest, ExternalSSTFileTest,
testing::Values(std::make_tuple(false, false),
std::make_tuple(false, true),
std::make_tuple(true, false),
std::make_tuple(true, true)));
INSTANTIATE_TEST_CASE_P(ExternSSTFileLinkFailFallbackTest,
ExternSSTFileLinkFailFallbackTest,
testing::Values(std::make_tuple(true, false),
std::make_tuple(true, true),
std::make_tuple(false, false)));
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
#else
#include <stdio.h>
int main(int /*argc*/, char** /*argv*/) {
fprintf(stderr,
"SKIPPED as External SST File Writer and Ingestion are not supported "
"in ROCKSDB_LITE\n");
return 0;
}
#endif // !ROCKSDB_LITE
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