ed7a95b28c
Summary: Sometimes we want to compact files as fast as possible, but don't want to set a large `max_subcompactions` in the `DBOptions` by default. I add a `max_subcompactions` options to `CompactionOptions` so that we can choose a proper concurrency dynamically. Closes https://github.com/facebook/rocksdb/pull/3775 Differential Revision: D7792357 Pulled By: ajkr fbshipit-source-id: 94f54c3784dce69e40a229721a79a97e80cd6a6c
1008 lines
38 KiB
C++
1008 lines
38 KiB
C++
// Copyright (c) 2016-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).
|
|
|
|
#include "db/db_test_util.h"
|
|
#include "port/stack_trace.h"
|
|
#include "util/testutil.h"
|
|
#include "utilities/merge_operators.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
class DBRangeDelTest : public DBTestBase {
|
|
public:
|
|
DBRangeDelTest() : DBTestBase("/db_range_del_test") {}
|
|
|
|
std::string GetNumericStr(int key) {
|
|
uint64_t uint64_key = static_cast<uint64_t>(key);
|
|
std::string str;
|
|
str.resize(8);
|
|
memcpy(&str[0], static_cast<void*>(&uint64_key), 8);
|
|
return str;
|
|
}
|
|
};
|
|
|
|
// PlainTableFactory and NumTableFilesAtLevel() are not supported in
|
|
// ROCKSDB_LITE
|
|
#ifndef ROCKSDB_LITE
|
|
TEST_F(DBRangeDelTest, NonBlockBasedTableNotSupported) {
|
|
if (!IsMemoryMappedAccessSupported()) {
|
|
return;
|
|
}
|
|
Options opts = CurrentOptions();
|
|
opts.table_factory.reset(new PlainTableFactory());
|
|
opts.prefix_extractor.reset(NewNoopTransform());
|
|
opts.allow_mmap_reads = true;
|
|
opts.max_sequential_skip_in_iterations = 999999;
|
|
Reopen(opts);
|
|
|
|
ASSERT_TRUE(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "dr1", "dr1")
|
|
.IsNotSupported());
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, FlushOutputHasOnlyRangeTombstones) {
|
|
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "dr1",
|
|
"dr2"));
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(0));
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, CompactionOutputHasOnlyRangeTombstone) {
|
|
Options opts = CurrentOptions();
|
|
opts.disable_auto_compactions = true;
|
|
opts.statistics = CreateDBStatistics();
|
|
Reopen(opts);
|
|
|
|
// snapshot protects range tombstone from dropping due to becoming obsolete.
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z");
|
|
db_->Flush(FlushOptions());
|
|
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(0));
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(1));
|
|
dbfull()->TEST_CompactRange(0, nullptr, nullptr, nullptr,
|
|
true /* disallow_trivial_move */);
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(0));
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(1));
|
|
ASSERT_EQ(0, TestGetTickerCount(opts, COMPACTION_RANGE_DEL_DROP_OBSOLETE));
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, CompactionOutputFilesExactlyFilled) {
|
|
// regression test for exactly filled compaction output files. Previously
|
|
// another file would be generated containing all range deletions, which
|
|
// could invalidate the non-overlapping file boundary invariant.
|
|
const int kNumPerFile = 4, kNumFiles = 2, kFileBytes = 9 << 10;
|
|
Options options = CurrentOptions();
|
|
options.disable_auto_compactions = true;
|
|
options.level0_file_num_compaction_trigger = kNumFiles;
|
|
options.memtable_factory.reset(new SpecialSkipListFactory(kNumPerFile));
|
|
options.num_levels = 2;
|
|
options.target_file_size_base = kFileBytes;
|
|
BlockBasedTableOptions table_options;
|
|
table_options.block_size_deviation = 50; // each block holds two keys
|
|
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
|
|
Reopen(options);
|
|
|
|
// snapshot protects range tombstone from dropping due to becoming obsolete.
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), Key(0), Key(1));
|
|
|
|
Random rnd(301);
|
|
for (int i = 0; i < kNumFiles; ++i) {
|
|
std::vector<std::string> values;
|
|
// Write 12K (4 values, each 3K)
|
|
for (int j = 0; j < kNumPerFile; j++) {
|
|
values.push_back(RandomString(&rnd, 3 << 10));
|
|
ASSERT_OK(Put(Key(i * kNumPerFile + j), values[j]));
|
|
if (j == 0 && i > 0) {
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
}
|
|
}
|
|
}
|
|
// put extra key to trigger final flush
|
|
ASSERT_OK(Put("", ""));
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
ASSERT_EQ(kNumFiles, NumTableFilesAtLevel(0));
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(1));
|
|
|
|
dbfull()->TEST_CompactRange(0, nullptr, nullptr, nullptr,
|
|
true /* disallow_trivial_move */);
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(0));
|
|
ASSERT_EQ(2, NumTableFilesAtLevel(1));
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, MaxCompactionBytesCutsOutputFiles) {
|
|
// Ensures range deletion spanning multiple compaction output files that are
|
|
// cut by max_compaction_bytes will have non-overlapping key-ranges.
|
|
// https://github.com/facebook/rocksdb/issues/1778
|
|
const int kNumFiles = 2, kNumPerFile = 1 << 8, kBytesPerVal = 1 << 12;
|
|
Options opts = CurrentOptions();
|
|
opts.comparator = test::Uint64Comparator();
|
|
opts.disable_auto_compactions = true;
|
|
opts.level0_file_num_compaction_trigger = kNumFiles;
|
|
opts.max_compaction_bytes = kNumPerFile * kBytesPerVal;
|
|
opts.memtable_factory.reset(new SpecialSkipListFactory(kNumPerFile));
|
|
// Want max_compaction_bytes to trigger the end of compaction output file, not
|
|
// target_file_size_base, so make the latter much bigger
|
|
opts.target_file_size_base = 100 * opts.max_compaction_bytes;
|
|
Reopen(opts);
|
|
|
|
// snapshot protects range tombstone from dropping due to becoming obsolete.
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
|
|
// It spans the whole key-range, thus will be included in all output files
|
|
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
GetNumericStr(0),
|
|
GetNumericStr(kNumFiles * kNumPerFile - 1)));
|
|
Random rnd(301);
|
|
for (int i = 0; i < kNumFiles; ++i) {
|
|
std::vector<std::string> values;
|
|
// Write 1MB (256 values, each 4K)
|
|
for (int j = 0; j < kNumPerFile; j++) {
|
|
values.push_back(RandomString(&rnd, kBytesPerVal));
|
|
ASSERT_OK(Put(GetNumericStr(kNumPerFile * i + j), values[j]));
|
|
}
|
|
// extra entry to trigger SpecialSkipListFactory's flush
|
|
ASSERT_OK(Put(GetNumericStr(kNumPerFile), ""));
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
ASSERT_EQ(i + 1, NumTableFilesAtLevel(0));
|
|
}
|
|
|
|
dbfull()->TEST_CompactRange(0, nullptr, nullptr, nullptr,
|
|
true /* disallow_trivial_move */);
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(0));
|
|
ASSERT_GE(NumTableFilesAtLevel(1), 2);
|
|
|
|
std::vector<std::vector<FileMetaData>> files;
|
|
dbfull()->TEST_GetFilesMetaData(db_->DefaultColumnFamily(), &files);
|
|
|
|
for (size_t i = 0; i < files[1].size() - 1; ++i) {
|
|
ASSERT_TRUE(InternalKeyComparator(opts.comparator)
|
|
.Compare(files[1][i].largest, files[1][i + 1].smallest) <
|
|
0);
|
|
}
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, SentinelsOmittedFromOutputFile) {
|
|
// Regression test for bug where sentinel range deletions (i.e., ones with
|
|
// sequence number of zero) were included in output files.
|
|
// snapshot protects range tombstone from dropping due to becoming obsolete.
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
|
|
// gaps between ranges creates sentinels in our internal representation
|
|
std::vector<std::pair<std::string, std::string>> range_dels = {{"a", "b"}, {"c", "d"}, {"e", "f"}};
|
|
for (const auto& range_del : range_dels) {
|
|
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
range_del.first, range_del.second));
|
|
}
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(0));
|
|
|
|
std::vector<std::vector<FileMetaData>> files;
|
|
dbfull()->TEST_GetFilesMetaData(db_->DefaultColumnFamily(), &files);
|
|
ASSERT_GT(files[0][0].smallest_seqno, 0);
|
|
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, FlushRangeDelsSameStartKey) {
|
|
db_->Put(WriteOptions(), "b1", "val");
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "c"));
|
|
db_->Put(WriteOptions(), "b2", "val");
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "b"));
|
|
// first iteration verifies query correctness in memtable, second verifies
|
|
// query correctness for a single SST file
|
|
for (int i = 0; i < 2; ++i) {
|
|
if (i > 0) {
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(0));
|
|
}
|
|
std::string value;
|
|
ASSERT_TRUE(db_->Get(ReadOptions(), "b1", &value).IsNotFound());
|
|
ASSERT_OK(db_->Get(ReadOptions(), "b2", &value));
|
|
}
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, CompactRangeDelsSameStartKey) {
|
|
db_->Put(WriteOptions(), "unused", "val"); // prevents empty after compaction
|
|
db_->Put(WriteOptions(), "b1", "val");
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "c"));
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "b"));
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
ASSERT_EQ(3, NumTableFilesAtLevel(0));
|
|
|
|
for (int i = 0; i < 2; ++i) {
|
|
if (i > 0) {
|
|
dbfull()->TEST_CompactRange(0, nullptr, nullptr, nullptr,
|
|
true /* disallow_trivial_move */);
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(0));
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(1));
|
|
}
|
|
std::string value;
|
|
ASSERT_TRUE(db_->Get(ReadOptions(), "b1", &value).IsNotFound());
|
|
}
|
|
}
|
|
#endif // ROCKSDB_LITE
|
|
|
|
TEST_F(DBRangeDelTest, FlushRemovesCoveredKeys) {
|
|
const int kNum = 300, kRangeBegin = 50, kRangeEnd = 250;
|
|
Options opts = CurrentOptions();
|
|
opts.comparator = test::Uint64Comparator();
|
|
Reopen(opts);
|
|
|
|
// Write a third before snapshot, a third between snapshot and tombstone, and
|
|
// a third after the tombstone. Keys older than snapshot or newer than the
|
|
// tombstone should be preserved.
|
|
const Snapshot* snapshot = nullptr;
|
|
for (int i = 0; i < kNum; ++i) {
|
|
if (i == kNum / 3) {
|
|
snapshot = db_->GetSnapshot();
|
|
} else if (i == 2 * kNum / 3) {
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
GetNumericStr(kRangeBegin), GetNumericStr(kRangeEnd));
|
|
}
|
|
db_->Put(WriteOptions(), GetNumericStr(i), "val");
|
|
}
|
|
db_->Flush(FlushOptions());
|
|
|
|
for (int i = 0; i < kNum; ++i) {
|
|
ReadOptions read_opts;
|
|
read_opts.ignore_range_deletions = true;
|
|
std::string value;
|
|
if (i < kRangeBegin || i > kRangeEnd || i < kNum / 3 || i >= 2 * kNum / 3) {
|
|
ASSERT_OK(db_->Get(read_opts, GetNumericStr(i), &value));
|
|
} else {
|
|
ASSERT_TRUE(db_->Get(read_opts, GetNumericStr(i), &value).IsNotFound());
|
|
}
|
|
}
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
// NumTableFilesAtLevel() is not supported in ROCKSDB_LITE
|
|
#ifndef ROCKSDB_LITE
|
|
TEST_F(DBRangeDelTest, CompactionRemovesCoveredKeys) {
|
|
const int kNumPerFile = 100, kNumFiles = 4;
|
|
Options opts = CurrentOptions();
|
|
opts.comparator = test::Uint64Comparator();
|
|
opts.disable_auto_compactions = true;
|
|
opts.memtable_factory.reset(new SpecialSkipListFactory(kNumPerFile));
|
|
opts.num_levels = 2;
|
|
opts.statistics = CreateDBStatistics();
|
|
Reopen(opts);
|
|
|
|
for (int i = 0; i < kNumFiles; ++i) {
|
|
if (i > 0) {
|
|
// range tombstone covers first half of the previous file
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
GetNumericStr((i - 1) * kNumPerFile),
|
|
GetNumericStr((i - 1) * kNumPerFile + kNumPerFile / 2));
|
|
}
|
|
// Make sure a given key appears in each file so compaction won't be able to
|
|
// use trivial move, which would happen if the ranges were non-overlapping.
|
|
// Also, we need an extra element since flush is only triggered when the
|
|
// number of keys is one greater than SpecialSkipListFactory's limit.
|
|
// We choose a key outside the key-range used by the test to avoid conflict.
|
|
db_->Put(WriteOptions(), GetNumericStr(kNumPerFile * kNumFiles), "val");
|
|
|
|
for (int j = 0; j < kNumPerFile; ++j) {
|
|
db_->Put(WriteOptions(), GetNumericStr(i * kNumPerFile + j), "val");
|
|
}
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
ASSERT_EQ(i + 1, NumTableFilesAtLevel(0));
|
|
}
|
|
db_->CompactRange(CompactRangeOptions(), nullptr, nullptr);
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(0));
|
|
ASSERT_GT(NumTableFilesAtLevel(1), 0);
|
|
ASSERT_EQ((kNumFiles - 1) * kNumPerFile / 2,
|
|
TestGetTickerCount(opts, COMPACTION_KEY_DROP_RANGE_DEL));
|
|
|
|
for (int i = 0; i < kNumFiles; ++i) {
|
|
for (int j = 0; j < kNumPerFile; ++j) {
|
|
ReadOptions read_opts;
|
|
read_opts.ignore_range_deletions = true;
|
|
std::string value;
|
|
if (i == kNumFiles - 1 || j >= kNumPerFile / 2) {
|
|
ASSERT_OK(
|
|
db_->Get(read_opts, GetNumericStr(i * kNumPerFile + j), &value));
|
|
} else {
|
|
ASSERT_TRUE(
|
|
db_->Get(read_opts, GetNumericStr(i * kNumPerFile + j), &value)
|
|
.IsNotFound());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, ValidLevelSubcompactionBoundaries) {
|
|
const int kNumPerFile = 100, kNumFiles = 4, kFileBytes = 100 << 10;
|
|
Options options = CurrentOptions();
|
|
options.disable_auto_compactions = true;
|
|
options.level0_file_num_compaction_trigger = kNumFiles;
|
|
options.max_bytes_for_level_base = 2 * kFileBytes;
|
|
options.max_subcompactions = 4;
|
|
options.memtable_factory.reset(new SpecialSkipListFactory(kNumPerFile));
|
|
options.num_levels = 3;
|
|
options.target_file_size_base = kFileBytes;
|
|
options.target_file_size_multiplier = 1;
|
|
Reopen(options);
|
|
|
|
Random rnd(301);
|
|
for (int i = 0; i < 2; ++i) {
|
|
for (int j = 0; j < kNumFiles; ++j) {
|
|
if (i > 0) {
|
|
// delete [95,105) in two files, [295,305) in next two
|
|
int mid = (j + (1 - j % 2)) * kNumPerFile;
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
Key(mid - 5), Key(mid + 5));
|
|
}
|
|
std::vector<std::string> values;
|
|
// Write 100KB (100 values, each 1K)
|
|
for (int k = 0; k < kNumPerFile; k++) {
|
|
values.push_back(RandomString(&rnd, 990));
|
|
ASSERT_OK(Put(Key(j * kNumPerFile + k), values[k]));
|
|
}
|
|
// put extra key to trigger flush
|
|
ASSERT_OK(Put("", ""));
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
if (j < kNumFiles - 1) {
|
|
// background compaction may happen early for kNumFiles'th file
|
|
ASSERT_EQ(NumTableFilesAtLevel(0), j + 1);
|
|
}
|
|
if (j == options.level0_file_num_compaction_trigger - 1) {
|
|
// When i == 1, compaction will output some files to L1, at which point
|
|
// L1 is not bottommost so range deletions cannot be compacted away. The
|
|
// new L1 files must be generated with non-overlapping key ranges even
|
|
// though multiple subcompactions see the same ranges deleted, else an
|
|
// assertion will fail.
|
|
//
|
|
// Only enable auto-compactions when we're ready; otherwise, the
|
|
// oversized L0 (relative to base_level) causes the compaction to run
|
|
// earlier.
|
|
ASSERT_OK(db_->EnableAutoCompaction({db_->DefaultColumnFamily()}));
|
|
dbfull()->TEST_WaitForCompact();
|
|
ASSERT_OK(db_->SetOptions(db_->DefaultColumnFamily(),
|
|
{{"disable_auto_compactions", "true"}}));
|
|
ASSERT_EQ(NumTableFilesAtLevel(0), 0);
|
|
ASSERT_GT(NumTableFilesAtLevel(1), 0);
|
|
ASSERT_GT(NumTableFilesAtLevel(2), 0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, ValidUniversalSubcompactionBoundaries) {
|
|
const int kNumPerFile = 100, kFilesPerLevel = 4, kNumLevels = 4;
|
|
Options options = CurrentOptions();
|
|
options.compaction_options_universal.min_merge_width = kFilesPerLevel;
|
|
options.compaction_options_universal.max_merge_width = kFilesPerLevel;
|
|
options.compaction_options_universal.size_ratio = 10;
|
|
options.compaction_style = kCompactionStyleUniversal;
|
|
options.level0_file_num_compaction_trigger = kFilesPerLevel;
|
|
options.max_subcompactions = 4;
|
|
options.memtable_factory.reset(new SpecialSkipListFactory(kNumPerFile));
|
|
options.num_levels = kNumLevels;
|
|
options.target_file_size_base = kNumPerFile << 10;
|
|
options.target_file_size_multiplier = 1;
|
|
Reopen(options);
|
|
|
|
Random rnd(301);
|
|
for (int i = 0; i < kNumLevels - 1; ++i) {
|
|
for (int j = 0; j < kFilesPerLevel; ++j) {
|
|
if (i == kNumLevels - 2) {
|
|
// insert range deletions [95,105) in two files, [295,305) in next two
|
|
// to prepare L1 for later manual compaction.
|
|
int mid = (j + (1 - j % 2)) * kNumPerFile;
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
Key(mid - 5), Key(mid + 5));
|
|
}
|
|
std::vector<std::string> values;
|
|
// Write 100KB (100 values, each 1K)
|
|
for (int k = 0; k < kNumPerFile; k++) {
|
|
values.push_back(RandomString(&rnd, 990));
|
|
ASSERT_OK(Put(Key(j * kNumPerFile + k), values[k]));
|
|
}
|
|
// put extra key to trigger flush
|
|
ASSERT_OK(Put("", ""));
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
if (j < kFilesPerLevel - 1) {
|
|
// background compaction may happen early for kFilesPerLevel'th file
|
|
ASSERT_EQ(NumTableFilesAtLevel(0), j + 1);
|
|
}
|
|
}
|
|
dbfull()->TEST_WaitForCompact();
|
|
ASSERT_EQ(NumTableFilesAtLevel(0), 0);
|
|
ASSERT_GT(NumTableFilesAtLevel(kNumLevels - 1 - i), kFilesPerLevel - 1);
|
|
}
|
|
// Now L1-L3 are full, when we compact L1->L2 we should see (1) subcompactions
|
|
// happen since input level > 0; (2) range deletions are not dropped since
|
|
// output level is not bottommost. If no file boundary assertion fails, that
|
|
// probably means universal compaction + subcompaction + range deletion are
|
|
// compatible.
|
|
ASSERT_OK(dbfull()->RunManualCompaction(
|
|
reinterpret_cast<ColumnFamilyHandleImpl*>(db_->DefaultColumnFamily())
|
|
->cfd(),
|
|
1 /* input_level */, 2 /* output_level */, 0 /* output_path_id */,
|
|
0 /* max_subcompactions */, nullptr /* begin */, nullptr /* end */,
|
|
true /* exclusive */, true /* disallow_trivial_move */));
|
|
}
|
|
#endif // ROCKSDB_LITE
|
|
|
|
TEST_F(DBRangeDelTest, CompactionRemovesCoveredMergeOperands) {
|
|
const int kNumPerFile = 3, kNumFiles = 3;
|
|
Options opts = CurrentOptions();
|
|
opts.disable_auto_compactions = true;
|
|
opts.memtable_factory.reset(new SpecialSkipListFactory(2 * kNumPerFile));
|
|
opts.merge_operator = MergeOperators::CreateUInt64AddOperator();
|
|
opts.num_levels = 2;
|
|
Reopen(opts);
|
|
|
|
// Iterates kNumFiles * kNumPerFile + 1 times since flushing the last file
|
|
// requires an extra entry.
|
|
for (int i = 0; i <= kNumFiles * kNumPerFile; ++i) {
|
|
if (i % kNumPerFile == 0 && i / kNumPerFile == kNumFiles - 1) {
|
|
// Delete merge operands from all but the last file
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "key",
|
|
"key_");
|
|
}
|
|
std::string val;
|
|
PutFixed64(&val, i);
|
|
db_->Merge(WriteOptions(), "key", val);
|
|
// we need to prevent trivial move using Puts so compaction will actually
|
|
// process the merge operands.
|
|
db_->Put(WriteOptions(), "prevent_trivial_move", "");
|
|
if (i > 0 && i % kNumPerFile == 0) {
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
}
|
|
}
|
|
|
|
ReadOptions read_opts;
|
|
read_opts.ignore_range_deletions = true;
|
|
std::string expected, actual;
|
|
ASSERT_OK(db_->Get(read_opts, "key", &actual));
|
|
PutFixed64(&expected, 45); // 1+2+...+9
|
|
ASSERT_EQ(expected, actual);
|
|
|
|
db_->CompactRange(CompactRangeOptions(), nullptr, nullptr);
|
|
|
|
expected.clear();
|
|
ASSERT_OK(db_->Get(read_opts, "key", &actual));
|
|
uint64_t tmp;
|
|
Slice tmp2(actual);
|
|
GetFixed64(&tmp2, &tmp);
|
|
PutFixed64(&expected, 30); // 6+7+8+9 (earlier operands covered by tombstone)
|
|
ASSERT_EQ(expected, actual);
|
|
}
|
|
|
|
// NumTableFilesAtLevel() is not supported in ROCKSDB_LITE
|
|
#ifndef ROCKSDB_LITE
|
|
TEST_F(DBRangeDelTest, ObsoleteTombstoneCleanup) {
|
|
// During compaction to bottommost level, verify range tombstones older than
|
|
// the oldest snapshot are removed, while others are preserved.
|
|
Options opts = CurrentOptions();
|
|
opts.disable_auto_compactions = true;
|
|
opts.num_levels = 2;
|
|
opts.statistics = CreateDBStatistics();
|
|
Reopen(opts);
|
|
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "dr1",
|
|
"dr1"); // obsolete after compaction
|
|
db_->Put(WriteOptions(), "key", "val");
|
|
db_->Flush(FlushOptions());
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "dr2",
|
|
"dr2"); // protected by snapshot
|
|
db_->Put(WriteOptions(), "key", "val");
|
|
db_->Flush(FlushOptions());
|
|
|
|
ASSERT_EQ(2, NumTableFilesAtLevel(0));
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(1));
|
|
db_->CompactRange(CompactRangeOptions(), nullptr, nullptr);
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(0));
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(1));
|
|
ASSERT_EQ(1, TestGetTickerCount(opts, COMPACTION_RANGE_DEL_DROP_OBSOLETE));
|
|
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, TableEvictedDuringScan) {
|
|
// The RangeDelAggregator holds pointers into range deletion blocks created by
|
|
// table readers. This test ensures the aggregator can still access those
|
|
// blocks even if it outlives the table readers that created them.
|
|
//
|
|
// DBIter always keeps readers open for L0 files. So, in order to test
|
|
// aggregator outliving reader, we need to have deletions in L1 files, which
|
|
// are opened/closed on-demand during the scan. This is accomplished by
|
|
// setting kNumRanges > level0_stop_writes_trigger, which prevents deletions
|
|
// from all lingering in L0 (there is at most one range deletion per L0 file).
|
|
//
|
|
// The first L1 file will contain a range deletion since its begin key is 0.
|
|
// SeekToFirst() references that table's reader and adds its range tombstone
|
|
// to the aggregator. Upon advancing beyond that table's key-range via Next(),
|
|
// the table reader will be unreferenced by the iterator. Since we manually
|
|
// call Evict() on all readers before the full scan, this unreference causes
|
|
// the reader's refcount to drop to zero and thus be destroyed.
|
|
//
|
|
// When it is destroyed, we do not remove its range deletions from the
|
|
// aggregator. So, subsequent calls to Next() must be able to use these
|
|
// deletions to decide whether a key is covered. This will work as long as
|
|
// the aggregator properly references the range deletion block.
|
|
const int kNum = 25, kRangeBegin = 0, kRangeEnd = 7, kNumRanges = 5;
|
|
Options opts = CurrentOptions();
|
|
opts.comparator = test::Uint64Comparator();
|
|
opts.level0_file_num_compaction_trigger = 4;
|
|
opts.level0_stop_writes_trigger = 4;
|
|
opts.memtable_factory.reset(new SpecialSkipListFactory(1));
|
|
opts.num_levels = 2;
|
|
BlockBasedTableOptions bbto;
|
|
bbto.cache_index_and_filter_blocks = true;
|
|
bbto.block_cache = NewLRUCache(8 << 20);
|
|
opts.table_factory.reset(NewBlockBasedTableFactory(bbto));
|
|
Reopen(opts);
|
|
|
|
// Hold a snapshot so range deletions can't become obsolete during compaction
|
|
// to bottommost level (i.e., L1).
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
for (int i = 0; i < kNum; ++i) {
|
|
db_->Put(WriteOptions(), GetNumericStr(i), "val");
|
|
if (i > 0) {
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
}
|
|
if (i >= kNum / 2 && i < kNum / 2 + kNumRanges) {
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
GetNumericStr(kRangeBegin), GetNumericStr(kRangeEnd));
|
|
}
|
|
}
|
|
// Must be > 1 so the first L1 file can be closed before scan finishes
|
|
dbfull()->TEST_WaitForCompact();
|
|
ASSERT_GT(NumTableFilesAtLevel(1), 1);
|
|
std::vector<uint64_t> file_numbers = ListTableFiles(env_, dbname_);
|
|
|
|
ReadOptions read_opts;
|
|
auto* iter = db_->NewIterator(read_opts);
|
|
int expected = kRangeEnd;
|
|
iter->SeekToFirst();
|
|
for (auto file_number : file_numbers) {
|
|
// This puts table caches in the state of being externally referenced only
|
|
// so they are destroyed immediately upon iterator unreferencing.
|
|
TableCache::Evict(dbfull()->TEST_table_cache(), file_number);
|
|
}
|
|
for (; iter->Valid(); iter->Next()) {
|
|
ASSERT_EQ(GetNumericStr(expected), iter->key());
|
|
++expected;
|
|
// Keep clearing block cache's LRU so range deletion block can be freed as
|
|
// soon as its refcount drops to zero.
|
|
bbto.block_cache->EraseUnRefEntries();
|
|
}
|
|
ASSERT_EQ(kNum, expected);
|
|
delete iter;
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, GetCoveredKeyFromMutableMemtable) {
|
|
db_->Put(WriteOptions(), "key", "val");
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
|
|
ReadOptions read_opts;
|
|
std::string value;
|
|
ASSERT_TRUE(db_->Get(read_opts, "key", &value).IsNotFound());
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, GetCoveredKeyFromImmutableMemtable) {
|
|
Options opts = CurrentOptions();
|
|
opts.max_write_buffer_number = 3;
|
|
opts.min_write_buffer_number_to_merge = 2;
|
|
// SpecialSkipListFactory lets us specify maximum number of elements the
|
|
// memtable can hold. It switches the active memtable to immutable (flush is
|
|
// prevented by the above options) upon inserting an element that would
|
|
// overflow the memtable.
|
|
opts.memtable_factory.reset(new SpecialSkipListFactory(1));
|
|
Reopen(opts);
|
|
|
|
db_->Put(WriteOptions(), "key", "val");
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
db_->Put(WriteOptions(), "blah", "val");
|
|
|
|
ReadOptions read_opts;
|
|
std::string value;
|
|
ASSERT_TRUE(db_->Get(read_opts, "key", &value).IsNotFound());
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, GetCoveredKeyFromSst) {
|
|
db_->Put(WriteOptions(), "key", "val");
|
|
// snapshot prevents key from being deleted during flush
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
|
|
ReadOptions read_opts;
|
|
std::string value;
|
|
ASSERT_TRUE(db_->Get(read_opts, "key", &value).IsNotFound());
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, GetCoveredMergeOperandFromMemtable) {
|
|
const int kNumMergeOps = 10;
|
|
Options opts = CurrentOptions();
|
|
opts.merge_operator = MergeOperators::CreateUInt64AddOperator();
|
|
Reopen(opts);
|
|
|
|
for (int i = 0; i < kNumMergeOps; ++i) {
|
|
std::string val;
|
|
PutFixed64(&val, i);
|
|
db_->Merge(WriteOptions(), "key", val);
|
|
if (i == kNumMergeOps / 2) {
|
|
// deletes [0, 5]
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "key",
|
|
"key_");
|
|
}
|
|
}
|
|
|
|
ReadOptions read_opts;
|
|
std::string expected, actual;
|
|
ASSERT_OK(db_->Get(read_opts, "key", &actual));
|
|
PutFixed64(&expected, 30); // 6+7+8+9
|
|
ASSERT_EQ(expected, actual);
|
|
|
|
expected.clear();
|
|
read_opts.ignore_range_deletions = true;
|
|
ASSERT_OK(db_->Get(read_opts, "key", &actual));
|
|
PutFixed64(&expected, 45); // 0+1+2+...+9
|
|
ASSERT_EQ(expected, actual);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, GetIgnoresRangeDeletions) {
|
|
Options opts = CurrentOptions();
|
|
opts.max_write_buffer_number = 4;
|
|
opts.min_write_buffer_number_to_merge = 3;
|
|
opts.memtable_factory.reset(new SpecialSkipListFactory(1));
|
|
Reopen(opts);
|
|
|
|
db_->Put(WriteOptions(), "sst_key", "val");
|
|
// snapshot prevents key from being deleted during flush
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
db_->Put(WriteOptions(), "imm_key", "val");
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
db_->Put(WriteOptions(), "mem_key", "val");
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
|
|
ReadOptions read_opts;
|
|
read_opts.ignore_range_deletions = true;
|
|
for (std::string key : {"sst_key", "imm_key", "mem_key"}) {
|
|
std::string value;
|
|
ASSERT_OK(db_->Get(read_opts, key, &value));
|
|
}
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, IteratorRemovesCoveredKeys) {
|
|
const int kNum = 200, kRangeBegin = 50, kRangeEnd = 150, kNumPerFile = 25;
|
|
Options opts = CurrentOptions();
|
|
opts.comparator = test::Uint64Comparator();
|
|
opts.memtable_factory.reset(new SpecialSkipListFactory(kNumPerFile));
|
|
Reopen(opts);
|
|
|
|
// Write half of the keys before the tombstone and half after the tombstone.
|
|
// Only covered keys (i.e., within the range and older than the tombstone)
|
|
// should be deleted.
|
|
for (int i = 0; i < kNum; ++i) {
|
|
if (i == kNum / 2) {
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
GetNumericStr(kRangeBegin), GetNumericStr(kRangeEnd));
|
|
}
|
|
db_->Put(WriteOptions(), GetNumericStr(i), "val");
|
|
}
|
|
ReadOptions read_opts;
|
|
auto* iter = db_->NewIterator(read_opts);
|
|
|
|
int expected = 0;
|
|
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
|
|
ASSERT_EQ(GetNumericStr(expected), iter->key());
|
|
if (expected == kRangeBegin - 1) {
|
|
expected = kNum / 2;
|
|
} else {
|
|
++expected;
|
|
}
|
|
}
|
|
ASSERT_EQ(kNum, expected);
|
|
delete iter;
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, IteratorOverUserSnapshot) {
|
|
const int kNum = 200, kRangeBegin = 50, kRangeEnd = 150, kNumPerFile = 25;
|
|
Options opts = CurrentOptions();
|
|
opts.comparator = test::Uint64Comparator();
|
|
opts.memtable_factory.reset(new SpecialSkipListFactory(kNumPerFile));
|
|
Reopen(opts);
|
|
|
|
const Snapshot* snapshot = nullptr;
|
|
// Put a snapshot before the range tombstone, verify an iterator using that
|
|
// snapshot sees all inserted keys.
|
|
for (int i = 0; i < kNum; ++i) {
|
|
if (i == kNum / 2) {
|
|
snapshot = db_->GetSnapshot();
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
GetNumericStr(kRangeBegin), GetNumericStr(kRangeEnd));
|
|
}
|
|
db_->Put(WriteOptions(), GetNumericStr(i), "val");
|
|
}
|
|
ReadOptions read_opts;
|
|
read_opts.snapshot = snapshot;
|
|
auto* iter = db_->NewIterator(read_opts);
|
|
|
|
int expected = 0;
|
|
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
|
|
ASSERT_EQ(GetNumericStr(expected), iter->key());
|
|
++expected;
|
|
}
|
|
ASSERT_EQ(kNum / 2, expected);
|
|
delete iter;
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, IteratorIgnoresRangeDeletions) {
|
|
Options opts = CurrentOptions();
|
|
opts.max_write_buffer_number = 4;
|
|
opts.min_write_buffer_number_to_merge = 3;
|
|
opts.memtable_factory.reset(new SpecialSkipListFactory(1));
|
|
Reopen(opts);
|
|
|
|
db_->Put(WriteOptions(), "sst_key", "val");
|
|
// snapshot prevents key from being deleted during flush
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
db_->Put(WriteOptions(), "imm_key", "val");
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
db_->Put(WriteOptions(), "mem_key", "val");
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
|
|
ReadOptions read_opts;
|
|
read_opts.ignore_range_deletions = true;
|
|
auto* iter = db_->NewIterator(read_opts);
|
|
int i = 0;
|
|
std::string expected[] = {"imm_key", "mem_key", "sst_key"};
|
|
for (iter->SeekToFirst(); iter->Valid(); iter->Next(), ++i) {
|
|
std::string key;
|
|
ASSERT_EQ(expected[i], iter->key());
|
|
}
|
|
ASSERT_EQ(3, i);
|
|
delete iter;
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
#ifndef ROCKSDB_UBSAN_RUN
|
|
TEST_F(DBRangeDelTest, TailingIteratorRangeTombstoneUnsupported) {
|
|
db_->Put(WriteOptions(), "key", "val");
|
|
// snapshot prevents key from being deleted during flush
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
ASSERT_OK(
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "z"));
|
|
|
|
// iterations check unsupported in memtable, l0, and then l1
|
|
for (int i = 0; i < 3; ++i) {
|
|
ReadOptions read_opts;
|
|
read_opts.tailing = true;
|
|
auto* iter = db_->NewIterator(read_opts);
|
|
if (i == 2) {
|
|
// For L1+, iterators over files are created on-demand, so need seek
|
|
iter->SeekToFirst();
|
|
}
|
|
ASSERT_TRUE(iter->status().IsNotSupported());
|
|
delete iter;
|
|
if (i == 0) {
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
} else if (i == 1) {
|
|
MoveFilesToLevel(1);
|
|
}
|
|
}
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
#endif // !ROCKSDB_UBSAN_RUN
|
|
|
|
TEST_F(DBRangeDelTest, SubcompactionHasEmptyDedicatedRangeDelFile) {
|
|
const int kNumFiles = 2, kNumKeysPerFile = 4;
|
|
Options options = CurrentOptions();
|
|
options.compression = kNoCompression;
|
|
options.disable_auto_compactions = true;
|
|
options.level0_file_num_compaction_trigger = kNumFiles;
|
|
options.max_subcompactions = 2;
|
|
options.num_levels = 2;
|
|
options.target_file_size_base = 4096;
|
|
Reopen(options);
|
|
|
|
// need a L1 file for subcompaction to be triggered
|
|
ASSERT_OK(
|
|
db_->Put(WriteOptions(), db_->DefaultColumnFamily(), Key(0), "val"));
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
MoveFilesToLevel(1);
|
|
|
|
// put enough keys to fill up the first subcompaction, and later range-delete
|
|
// them so that the first subcompaction outputs no key-values. In that case
|
|
// it'll consider making an SST file dedicated to range deletions.
|
|
for (int i = 0; i < kNumKeysPerFile; ++i) {
|
|
ASSERT_OK(db_->Put(WriteOptions(), db_->DefaultColumnFamily(), Key(i),
|
|
std::string(1024, 'a')));
|
|
}
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), Key(0),
|
|
Key(kNumKeysPerFile)));
|
|
|
|
// the above range tombstone can be dropped, so that one alone won't cause a
|
|
// dedicated file to be opened. We can make one protected by snapshot that
|
|
// must be considered. Make its range outside the first subcompaction's range
|
|
// to exercise the tricky part of the code.
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
|
|
Key(kNumKeysPerFile + 1),
|
|
Key(kNumKeysPerFile + 2)));
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
|
|
ASSERT_EQ(kNumFiles, NumTableFilesAtLevel(0));
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(1));
|
|
|
|
db_->EnableAutoCompaction({db_->DefaultColumnFamily()});
|
|
dbfull()->TEST_WaitForCompact();
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, MemtableBloomFilter) {
|
|
// regression test for #2743. the range delete tombstones in memtable should
|
|
// be added even when Get() skips searching due to its prefix bloom filter
|
|
const int kMemtableSize = 1 << 20; // 1MB
|
|
const int kMemtablePrefixFilterSize = 1 << 13; // 8KB
|
|
const int kNumKeys = 1000;
|
|
const int kPrefixLen = 8;
|
|
Options options = CurrentOptions();
|
|
options.memtable_prefix_bloom_size_ratio =
|
|
static_cast<double>(kMemtablePrefixFilterSize) / kMemtableSize;
|
|
options.prefix_extractor.reset(rocksdb::NewFixedPrefixTransform(kPrefixLen));
|
|
options.write_buffer_size = kMemtableSize;
|
|
Reopen(options);
|
|
|
|
for (int i = 0; i < kNumKeys; ++i) {
|
|
ASSERT_OK(Put(Key(i), "val"));
|
|
}
|
|
Flush();
|
|
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), Key(0),
|
|
Key(kNumKeys)));
|
|
for (int i = 0; i < kNumKeys; ++i) {
|
|
std::string value;
|
|
ASSERT_TRUE(db_->Get(ReadOptions(), Key(i), &value).IsNotFound());
|
|
}
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, CompactionTreatsSplitInputLevelDeletionAtomically) {
|
|
// make sure compaction treats files containing a split range deletion in the
|
|
// input level as an atomic unit. I.e., compacting any input-level file(s)
|
|
// containing a portion of the range deletion causes all other input-level
|
|
// files containing portions of that same range deletion to be included in the
|
|
// compaction.
|
|
const int kNumFilesPerLevel = 4, kValueBytes = 4 << 10;
|
|
Options options = CurrentOptions();
|
|
options.compression = kNoCompression;
|
|
options.level0_file_num_compaction_trigger = kNumFilesPerLevel;
|
|
options.memtable_factory.reset(
|
|
new SpecialSkipListFactory(2 /* num_entries_flush */));
|
|
options.target_file_size_base = kValueBytes;
|
|
// i == 0: CompactFiles
|
|
// i == 1: CompactRange
|
|
// i == 2: automatic compaction
|
|
for (int i = 0; i < 3; ++i) {
|
|
DestroyAndReopen(options);
|
|
|
|
ASSERT_OK(Put(Key(0), ""));
|
|
ASSERT_OK(db_->Flush(FlushOptions()));
|
|
MoveFilesToLevel(2);
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(2));
|
|
|
|
// snapshot protects range tombstone from dropping due to becoming obsolete.
|
|
const Snapshot* snapshot = db_->GetSnapshot();
|
|
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), Key(0),
|
|
Key(2 * kNumFilesPerLevel));
|
|
|
|
Random rnd(301);
|
|
std::string value = RandomString(&rnd, kValueBytes);
|
|
for (int j = 0; j < kNumFilesPerLevel; ++j) {
|
|
// give files overlapping key-ranges to prevent trivial move
|
|
ASSERT_OK(Put(Key(j), value));
|
|
ASSERT_OK(Put(Key(2 * kNumFilesPerLevel - 1 - j), value));
|
|
if (j > 0) {
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
ASSERT_EQ(j, NumTableFilesAtLevel(0));
|
|
}
|
|
}
|
|
// put extra key to trigger final flush
|
|
ASSERT_OK(Put("", ""));
|
|
dbfull()->TEST_WaitForFlushMemTable();
|
|
dbfull()->TEST_WaitForCompact();
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(0));
|
|
ASSERT_EQ(kNumFilesPerLevel, NumTableFilesAtLevel(1));
|
|
|
|
ColumnFamilyMetaData meta;
|
|
db_->GetColumnFamilyMetaData(&meta);
|
|
if (i == 0) {
|
|
ASSERT_OK(db_->CompactFiles(
|
|
CompactionOptions(), {meta.levels[1].files[0].name}, 2 /* level */));
|
|
} else if (i == 1) {
|
|
auto begin_str = Key(0), end_str = Key(1);
|
|
Slice begin = begin_str, end = end_str;
|
|
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), &begin, &end));
|
|
} else if (i == 2) {
|
|
ASSERT_OK(db_->SetOptions(db_->DefaultColumnFamily(),
|
|
{{"max_bytes_for_level_base", "10000"}}));
|
|
dbfull()->TEST_WaitForCompact();
|
|
}
|
|
ASSERT_EQ(0, NumTableFilesAtLevel(1));
|
|
ASSERT_GT(NumTableFilesAtLevel(2), 0);
|
|
|
|
db_->ReleaseSnapshot(snapshot);
|
|
}
|
|
}
|
|
|
|
TEST_F(DBRangeDelTest, UnorderedTombstones) {
|
|
// Regression test for #2752. Range delete tombstones between
|
|
// different snapshot stripes are not stored in order, so the first
|
|
// tombstone of each snapshot stripe should be checked as a smallest
|
|
// candidate.
|
|
Options options = CurrentOptions();
|
|
DestroyAndReopen(options);
|
|
|
|
auto cf = db_->DefaultColumnFamily();
|
|
|
|
ASSERT_OK(db_->Put(WriteOptions(), cf, "a", "a"));
|
|
ASSERT_OK(db_->Flush(FlushOptions(), cf));
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(0));
|
|
ASSERT_OK(dbfull()->TEST_CompactRange(0, nullptr, nullptr));
|
|
ASSERT_EQ(1, NumTableFilesAtLevel(1));
|
|
|
|
ASSERT_OK(db_->DeleteRange(WriteOptions(), cf, "b", "c"));
|
|
// Hold a snapshot to separate these two delete ranges.
|
|
auto snapshot = db_->GetSnapshot();
|
|
ASSERT_OK(db_->DeleteRange(WriteOptions(), cf, "a", "b"));
|
|
ASSERT_OK(db_->Flush(FlushOptions(), cf));
|
|
db_->ReleaseSnapshot(snapshot);
|
|
|
|
std::vector<std::vector<FileMetaData>> files;
|
|
dbfull()->TEST_GetFilesMetaData(cf, &files);
|
|
ASSERT_EQ(1, files[0].size());
|
|
ASSERT_EQ("a", files[0][0].smallest.user_key());
|
|
ASSERT_EQ("c", files[0][0].largest.user_key());
|
|
|
|
std::string v;
|
|
auto s = db_->Get(ReadOptions(), "a", &v);
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
}
|
|
|
|
#endif // ROCKSDB_LITE
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
rocksdb::port::InstallStackTraceHandler();
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|