685 lines
24 KiB
C++
685 lines
24 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include <cstdlib>
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#include "db/db_test_util.h"
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#include "port/stack_trace.h"
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#include "rocksdb/wal_filter.h"
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namespace rocksdb {
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class DBTest2 : public DBTestBase {
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public:
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DBTest2() : DBTestBase("/db_test2") {}
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};
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TEST_F(DBTest2, IteratorPropertyVersionNumber) {
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Put("", "");
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Iterator* iter1 = db_->NewIterator(ReadOptions());
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std::string prop_value;
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ASSERT_OK(
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iter1->GetProperty("rocksdb.iterator.super-version-number", &prop_value));
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uint64_t version_number1 =
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static_cast<uint64_t>(std::atoi(prop_value.c_str()));
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Put("", "");
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Flush();
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Iterator* iter2 = db_->NewIterator(ReadOptions());
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ASSERT_OK(
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iter2->GetProperty("rocksdb.iterator.super-version-number", &prop_value));
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uint64_t version_number2 =
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static_cast<uint64_t>(std::atoi(prop_value.c_str()));
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ASSERT_GT(version_number2, version_number1);
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Put("", "");
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Iterator* iter3 = db_->NewIterator(ReadOptions());
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ASSERT_OK(
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iter3->GetProperty("rocksdb.iterator.super-version-number", &prop_value));
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uint64_t version_number3 =
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static_cast<uint64_t>(std::atoi(prop_value.c_str()));
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ASSERT_EQ(version_number2, version_number3);
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iter1->SeekToFirst();
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ASSERT_OK(
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iter1->GetProperty("rocksdb.iterator.super-version-number", &prop_value));
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uint64_t version_number1_new =
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static_cast<uint64_t>(std::atoi(prop_value.c_str()));
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ASSERT_EQ(version_number1, version_number1_new);
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delete iter1;
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delete iter2;
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delete iter3;
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}
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TEST_F(DBTest2, CacheIndexAndFilterWithDBRestart) {
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Options options = CurrentOptions();
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options.create_if_missing = true;
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options.statistics = rocksdb::CreateDBStatistics();
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BlockBasedTableOptions table_options;
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table_options.cache_index_and_filter_blocks = true;
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table_options.filter_policy.reset(NewBloomFilterPolicy(20));
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options.table_factory.reset(new BlockBasedTableFactory(table_options));
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CreateAndReopenWithCF({"pikachu"}, options);
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Put(1, "a", "begin");
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Put(1, "z", "end");
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ASSERT_OK(Flush(1));
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TryReopenWithColumnFamilies({"default", "pikachu"}, options);
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std::string value;
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value = Get(1, "a");
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}
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#ifndef ROCKSDB_LITE
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namespace {
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void ValidateKeyExistence(DB* db, const std::vector<Slice>& keys_must_exist,
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const std::vector<Slice>& keys_must_not_exist) {
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// Ensure that expected keys exist
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std::vector<std::string> values;
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if (keys_must_exist.size() > 0) {
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std::vector<Status> status_list =
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db->MultiGet(ReadOptions(), keys_must_exist, &values);
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for (size_t i = 0; i < keys_must_exist.size(); i++) {
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ASSERT_OK(status_list[i]);
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}
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}
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// Ensure that given keys don't exist
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if (keys_must_not_exist.size() > 0) {
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std::vector<Status> status_list =
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db->MultiGet(ReadOptions(), keys_must_not_exist, &values);
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for (size_t i = 0; i < keys_must_not_exist.size(); i++) {
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ASSERT_TRUE(status_list[i].IsNotFound());
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}
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}
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}
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} // namespace
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TEST_F(DBTest2, WalFilterTest) {
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class TestWalFilter : public WalFilter {
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private:
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// Processing option that is requested to be applied at the given index
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WalFilter::WalProcessingOption wal_processing_option_;
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// Index at which to apply wal_processing_option_
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// At other indexes default wal_processing_option::kContinueProcessing is
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// returned.
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size_t apply_option_at_record_index_;
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// Current record index, incremented with each record encountered.
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size_t current_record_index_;
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public:
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TestWalFilter(WalFilter::WalProcessingOption wal_processing_option,
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size_t apply_option_for_record_index)
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: wal_processing_option_(wal_processing_option),
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apply_option_at_record_index_(apply_option_for_record_index),
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current_record_index_(0) {}
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virtual WalProcessingOption LogRecord(const WriteBatch& batch,
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WriteBatch* new_batch,
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bool* batch_changed) const override {
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WalFilter::WalProcessingOption option_to_return;
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if (current_record_index_ == apply_option_at_record_index_) {
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option_to_return = wal_processing_option_;
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}
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else {
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option_to_return = WalProcessingOption::kContinueProcessing;
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}
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// Filter is passed as a const object for RocksDB to not modify the
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// object, however we modify it for our own purpose here and hence
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// cast the constness away.
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(const_cast<TestWalFilter*>(this)->current_record_index_)++;
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return option_to_return;
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}
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virtual const char* Name() const override { return "TestWalFilter"; }
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};
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// Create 3 batches with two keys each
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std::vector<std::vector<std::string>> batch_keys(3);
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batch_keys[0].push_back("key1");
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batch_keys[0].push_back("key2");
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batch_keys[1].push_back("key3");
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batch_keys[1].push_back("key4");
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batch_keys[2].push_back("key5");
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batch_keys[2].push_back("key6");
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// Test with all WAL processing options
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for (int option = 0;
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option < static_cast<int>(
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WalFilter::WalProcessingOption::kWalProcessingOptionMax);
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option++) {
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Options options = OptionsForLogIterTest();
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DestroyAndReopen(options);
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CreateAndReopenWithCF({ "pikachu" }, options);
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// Write given keys in given batches
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for (size_t i = 0; i < batch_keys.size(); i++) {
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WriteBatch batch;
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for (size_t j = 0; j < batch_keys[i].size(); j++) {
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batch.Put(handles_[0], batch_keys[i][j], DummyString(1024));
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}
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dbfull()->Write(WriteOptions(), &batch);
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}
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WalFilter::WalProcessingOption wal_processing_option =
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static_cast<WalFilter::WalProcessingOption>(option);
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// Create a test filter that would apply wal_processing_option at the first
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// record
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size_t apply_option_for_record_index = 1;
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TestWalFilter test_wal_filter(wal_processing_option,
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apply_option_for_record_index);
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// Reopen database with option to use WAL filter
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options = OptionsForLogIterTest();
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options.wal_filter = &test_wal_filter;
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Status status =
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TryReopenWithColumnFamilies({ "default", "pikachu" }, options);
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if (wal_processing_option ==
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WalFilter::WalProcessingOption::kCorruptedRecord) {
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assert(!status.ok());
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// In case of corruption we can turn off paranoid_checks to reopen
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// databse
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options.paranoid_checks = false;
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ReopenWithColumnFamilies({ "default", "pikachu" }, options);
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}
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else {
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assert(status.ok());
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}
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// Compute which keys we expect to be found
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// and which we expect not to be found after recovery.
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std::vector<Slice> keys_must_exist;
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std::vector<Slice> keys_must_not_exist;
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switch (wal_processing_option) {
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case WalFilter::WalProcessingOption::kCorruptedRecord:
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case WalFilter::WalProcessingOption::kContinueProcessing: {
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fprintf(stderr, "Testing with complete WAL processing\n");
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// we expect all records to be processed
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for (size_t i = 0; i < batch_keys.size(); i++) {
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for (size_t j = 0; j < batch_keys[i].size(); j++) {
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keys_must_exist.push_back(Slice(batch_keys[i][j]));
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}
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}
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break;
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}
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case WalFilter::WalProcessingOption::kIgnoreCurrentRecord: {
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fprintf(stderr,
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"Testing with ignoring record %" ROCKSDB_PRIszt " only\n",
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apply_option_for_record_index);
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// We expect the record with apply_option_for_record_index to be not
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// found.
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for (size_t i = 0; i < batch_keys.size(); i++) {
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for (size_t j = 0; j < batch_keys[i].size(); j++) {
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if (i == apply_option_for_record_index) {
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keys_must_not_exist.push_back(Slice(batch_keys[i][j]));
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}
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else {
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keys_must_exist.push_back(Slice(batch_keys[i][j]));
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}
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}
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}
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break;
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}
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case WalFilter::WalProcessingOption::kStopReplay: {
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fprintf(stderr,
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"Testing with stopping replay from record %" ROCKSDB_PRIszt
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"\n",
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apply_option_for_record_index);
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// We expect records beyond apply_option_for_record_index to be not
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// found.
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for (size_t i = 0; i < batch_keys.size(); i++) {
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for (size_t j = 0; j < batch_keys[i].size(); j++) {
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if (i >= apply_option_for_record_index) {
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keys_must_not_exist.push_back(Slice(batch_keys[i][j]));
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}
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else {
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keys_must_exist.push_back(Slice(batch_keys[i][j]));
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}
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}
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}
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break;
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}
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default:
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assert(false); // unhandled case
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}
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bool checked_after_reopen = false;
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while (true) {
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// Ensure that expected keys exists
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// and not expected keys don't exist after recovery
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ValidateKeyExistence(db_, keys_must_exist, keys_must_not_exist);
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if (checked_after_reopen) {
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break;
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}
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// reopen database again to make sure previous log(s) are not used
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//(even if they were skipped)
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// reopn database with option to use WAL filter
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options = OptionsForLogIterTest();
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ReopenWithColumnFamilies({ "default", "pikachu" }, options);
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checked_after_reopen = true;
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}
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}
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}
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TEST_F(DBTest2, WalFilterTestWithChangeBatch) {
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class ChangeBatchHandler : public WriteBatch::Handler {
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private:
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// Batch to insert keys in
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WriteBatch* new_write_batch_;
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// Number of keys to add in the new batch
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size_t num_keys_to_add_in_new_batch_;
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// Number of keys added to new batch
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size_t num_keys_added_;
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public:
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ChangeBatchHandler(WriteBatch* new_write_batch,
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size_t num_keys_to_add_in_new_batch)
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: new_write_batch_(new_write_batch),
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num_keys_to_add_in_new_batch_(num_keys_to_add_in_new_batch),
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num_keys_added_(0) {}
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virtual void Put(const Slice& key, const Slice& value) override {
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if (num_keys_added_ < num_keys_to_add_in_new_batch_) {
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new_write_batch_->Put(key, value);
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++num_keys_added_;
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}
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}
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};
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class TestWalFilterWithChangeBatch : public WalFilter {
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private:
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// Index at which to start changing records
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size_t change_records_from_index_;
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// Number of keys to add in the new batch
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size_t num_keys_to_add_in_new_batch_;
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// Current record index, incremented with each record encountered.
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size_t current_record_index_;
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public:
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TestWalFilterWithChangeBatch(size_t change_records_from_index,
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size_t num_keys_to_add_in_new_batch)
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: change_records_from_index_(change_records_from_index),
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num_keys_to_add_in_new_batch_(num_keys_to_add_in_new_batch),
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current_record_index_(0) {}
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virtual WalProcessingOption LogRecord(const WriteBatch& batch,
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WriteBatch* new_batch,
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bool* batch_changed) const override {
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if (current_record_index_ >= change_records_from_index_) {
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ChangeBatchHandler handler(new_batch, num_keys_to_add_in_new_batch_);
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batch.Iterate(&handler);
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*batch_changed = true;
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}
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// Filter is passed as a const object for RocksDB to not modify the
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// object, however we modify it for our own purpose here and hence
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// cast the constness away.
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(const_cast<TestWalFilterWithChangeBatch*>(this)
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->current_record_index_)++;
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return WalProcessingOption::kContinueProcessing;
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}
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virtual const char* Name() const override {
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return "TestWalFilterWithChangeBatch";
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}
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};
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std::vector<std::vector<std::string>> batch_keys(3);
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batch_keys[0].push_back("key1");
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batch_keys[0].push_back("key2");
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batch_keys[1].push_back("key3");
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batch_keys[1].push_back("key4");
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batch_keys[2].push_back("key5");
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batch_keys[2].push_back("key6");
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Options options = OptionsForLogIterTest();
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DestroyAndReopen(options);
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CreateAndReopenWithCF({ "pikachu" }, options);
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// Write given keys in given batches
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for (size_t i = 0; i < batch_keys.size(); i++) {
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WriteBatch batch;
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for (size_t j = 0; j < batch_keys[i].size(); j++) {
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batch.Put(handles_[0], batch_keys[i][j], DummyString(1024));
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}
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dbfull()->Write(WriteOptions(), &batch);
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}
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// Create a test filter that would apply wal_processing_option at the first
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// record
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size_t change_records_from_index = 1;
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size_t num_keys_to_add_in_new_batch = 1;
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TestWalFilterWithChangeBatch test_wal_filter_with_change_batch(
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change_records_from_index, num_keys_to_add_in_new_batch);
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// Reopen database with option to use WAL filter
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options = OptionsForLogIterTest();
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options.wal_filter = &test_wal_filter_with_change_batch;
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ReopenWithColumnFamilies({ "default", "pikachu" }, options);
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// Ensure that all keys exist before change_records_from_index_
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// And after that index only single key exists
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// as our filter adds only single key for each batch
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std::vector<Slice> keys_must_exist;
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std::vector<Slice> keys_must_not_exist;
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for (size_t i = 0; i < batch_keys.size(); i++) {
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for (size_t j = 0; j < batch_keys[i].size(); j++) {
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if (i >= change_records_from_index && j >=
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num_keys_to_add_in_new_batch) {
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keys_must_not_exist.push_back(Slice(batch_keys[i][j]));
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}
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else {
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keys_must_exist.push_back(Slice(batch_keys[i][j]));
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}
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}
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}
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bool checked_after_reopen = false;
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while (true) {
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// Ensure that expected keys exists
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// and not expected keys don't exist after recovery
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ValidateKeyExistence(db_, keys_must_exist, keys_must_not_exist);
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if (checked_after_reopen) {
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break;
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}
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// reopen database again to make sure previous log(s) are not used
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//(even if they were skipped)
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// reopn database with option to use WAL filter
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options = OptionsForLogIterTest();
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ReopenWithColumnFamilies({ "default", "pikachu" }, options);
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checked_after_reopen = true;
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}
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}
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TEST_F(DBTest2, WalFilterTestWithChangeBatchExtraKeys) {
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class TestWalFilterWithChangeBatchAddExtraKeys : public WalFilter {
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public:
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virtual WalProcessingOption LogRecord(const WriteBatch& batch,
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WriteBatch* new_batch,
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bool* batch_changed) const override {
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*new_batch = batch;
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new_batch->Put("key_extra", "value_extra");
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*batch_changed = true;
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return WalProcessingOption::kContinueProcessing;
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}
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virtual const char* Name() const override {
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return "WalFilterTestWithChangeBatchExtraKeys";
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}
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};
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std::vector<std::vector<std::string>> batch_keys(3);
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batch_keys[0].push_back("key1");
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batch_keys[0].push_back("key2");
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batch_keys[1].push_back("key3");
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batch_keys[1].push_back("key4");
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batch_keys[2].push_back("key5");
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batch_keys[2].push_back("key6");
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Options options = OptionsForLogIterTest();
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DestroyAndReopen(options);
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CreateAndReopenWithCF({ "pikachu" }, options);
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// Write given keys in given batches
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for (size_t i = 0; i < batch_keys.size(); i++) {
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WriteBatch batch;
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for (size_t j = 0; j < batch_keys[i].size(); j++) {
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batch.Put(handles_[0], batch_keys[i][j], DummyString(1024));
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}
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dbfull()->Write(WriteOptions(), &batch);
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}
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// Create a test filter that would add extra keys
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TestWalFilterWithChangeBatchAddExtraKeys test_wal_filter_extra_keys;
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// Reopen database with option to use WAL filter
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options = OptionsForLogIterTest();
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options.wal_filter = &test_wal_filter_extra_keys;
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Status status = TryReopenWithColumnFamilies({ "default", "pikachu" },
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options);
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ASSERT_TRUE(status.IsNotSupported());
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// Reopen without filter, now reopen should succeed - previous
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// attempt to open must not have altered the db.
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options = OptionsForLogIterTest();
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ReopenWithColumnFamilies({ "default", "pikachu" }, options);
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std::vector<Slice> keys_must_exist;
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std::vector<Slice> keys_must_not_exist; // empty vector
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for (size_t i = 0; i < batch_keys.size(); i++) {
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for (size_t j = 0; j < batch_keys[i].size(); j++) {
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keys_must_exist.push_back(Slice(batch_keys[i][j]));
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}
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}
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ValidateKeyExistence(db_, keys_must_exist, keys_must_not_exist);
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}
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TEST_F(DBTest2, WalFilterTestWithColumnFamilies) {
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class TestWalFilterWithColumnFamilies : public WalFilter {
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private:
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// column_family_id -> log_number map (provided to WALFilter)
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std::map<uint32_t, uint64_t> cf_log_number_map_;
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// column_family_name -> column_family_id map (provided to WALFilter)
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std::map<std::string, uint32_t> cf_name_id_map_;
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// column_family_name -> keys_found_in_wal map
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// We store keys that are applicable to the column_family
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// during recovery (i.e. aren't already flushed to SST file(s))
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// for verification against the keys we expect.
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std::map<uint32_t, std::vector<std::string>> cf_wal_keys_;
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public:
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virtual void ColumnFamilyLogNumberMap(
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const std::map<uint32_t, uint64_t>& cf_lognumber_map,
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const std::map<std::string, uint32_t>& cf_name_id_map) override {
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cf_log_number_map_ = cf_lognumber_map;
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cf_name_id_map_ = cf_name_id_map;
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}
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virtual WalProcessingOption LogRecordFound(unsigned long long log_number,
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const std::string& log_file_name,
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const WriteBatch& batch,
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WriteBatch* new_batch,
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bool* batch_changed) override {
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class LogRecordBatchHandler : public WriteBatch::Handler {
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private:
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const std::map<uint32_t, uint64_t> & cf_log_number_map_;
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std::map<uint32_t, std::vector<std::string>> & cf_wal_keys_;
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unsigned long long log_number_;
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public:
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LogRecordBatchHandler(unsigned long long current_log_number,
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const std::map<uint32_t, uint64_t> & cf_log_number_map,
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std::map<uint32_t, std::vector<std::string>> & cf_wal_keys) :
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cf_log_number_map_(cf_log_number_map),
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cf_wal_keys_(cf_wal_keys),
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log_number_(current_log_number){}
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virtual Status PutCF(uint32_t column_family_id, const Slice& key,
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const Slice& /*value*/) override {
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auto it = cf_log_number_map_.find(column_family_id);
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assert(it != cf_log_number_map_.end());
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unsigned long long log_number_for_cf = it->second;
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// If the current record is applicable for column_family_id
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// (i.e. isn't flushed to SST file(s) for column_family_id)
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// add it to the cf_wal_keys_ map for verification.
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if (log_number_ >= log_number_for_cf) {
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cf_wal_keys_[column_family_id].push_back(std::string(key.data(),
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key.size()));
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}
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return Status::OK();
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}
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} handler(log_number, cf_log_number_map_, cf_wal_keys_);
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batch.Iterate(&handler);
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return WalProcessingOption::kContinueProcessing;
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}
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virtual const char* Name() const override {
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return "WalFilterTestWithColumnFamilies";
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}
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const std::map<uint32_t, std::vector<std::string>> &
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GetColumnFamilyKeys() {
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return cf_wal_keys_;
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}
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const std::map<std::string, uint32_t> & GetColumnFamilyNameIdMap() {
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return cf_name_id_map_;
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}
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};
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std::vector<std::vector<std::string>> batch_keys_pre_flush(3);
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batch_keys_pre_flush[0].push_back("key1");
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batch_keys_pre_flush[0].push_back("key2");
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batch_keys_pre_flush[1].push_back("key3");
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batch_keys_pre_flush[1].push_back("key4");
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batch_keys_pre_flush[2].push_back("key5");
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batch_keys_pre_flush[2].push_back("key6");
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Options options = OptionsForLogIterTest();
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DestroyAndReopen(options);
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CreateAndReopenWithCF({ "pikachu" }, options);
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// Write given keys in given batches
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for (size_t i = 0; i < batch_keys_pre_flush.size(); i++) {
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WriteBatch batch;
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for (size_t j = 0; j < batch_keys_pre_flush[i].size(); j++) {
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batch.Put(handles_[0], batch_keys_pre_flush[i][j], DummyString(1024));
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batch.Put(handles_[1], batch_keys_pre_flush[i][j], DummyString(1024));
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}
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dbfull()->Write(WriteOptions(), &batch);
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}
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//Flush default column-family
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db_->Flush(FlushOptions(), handles_[0]);
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// Do some more writes
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std::vector<std::vector<std::string>> batch_keys_post_flush(3);
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batch_keys_post_flush[0].push_back("key7");
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batch_keys_post_flush[0].push_back("key8");
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batch_keys_post_flush[1].push_back("key9");
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batch_keys_post_flush[1].push_back("key10");
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batch_keys_post_flush[2].push_back("key11");
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batch_keys_post_flush[2].push_back("key12");
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// Write given keys in given batches
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for (size_t i = 0; i < batch_keys_post_flush.size(); i++) {
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WriteBatch batch;
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for (size_t j = 0; j < batch_keys_post_flush[i].size(); j++) {
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batch.Put(handles_[0], batch_keys_post_flush[i][j], DummyString(1024));
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batch.Put(handles_[1], batch_keys_post_flush[i][j], DummyString(1024));
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}
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dbfull()->Write(WriteOptions(), &batch);
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}
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// On Recovery we should only find the second batch applicable to default CF
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// But both batches applicable to pikachu CF
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// Create a test filter that would add extra keys
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TestWalFilterWithColumnFamilies test_wal_filter_column_families;
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// Reopen database with option to use WAL filter
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options = OptionsForLogIterTest();
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options.wal_filter = &test_wal_filter_column_families;
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Status status =
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TryReopenWithColumnFamilies({ "default", "pikachu" }, options);
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ASSERT_TRUE(status.ok());
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// verify that handles_[0] only has post_flush keys
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// while handles_[1] has pre and post flush keys
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auto cf_wal_keys = test_wal_filter_column_families.GetColumnFamilyKeys();
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auto name_id_map =
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test_wal_filter_column_families.GetColumnFamilyNameIdMap();
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size_t index = 0;
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auto keys_cf = cf_wal_keys[name_id_map[kDefaultColumnFamilyName]];
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//default column-family, only post_flush keys are expected
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for (size_t i = 0; i < batch_keys_post_flush.size(); i++) {
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for (size_t j = 0; j < batch_keys_post_flush[i].size(); j++) {
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Slice key_from_the_log(keys_cf[index++]);
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Slice batch_key(batch_keys_post_flush[i][j]);
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ASSERT_TRUE(key_from_the_log.compare(batch_key) == 0);
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}
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}
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ASSERT_TRUE(index == keys_cf.size());
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index = 0;
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keys_cf = cf_wal_keys[name_id_map["pikachu"]];
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//pikachu column-family, all keys are expected
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for (size_t i = 0; i < batch_keys_pre_flush.size(); i++) {
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for (size_t j = 0; j < batch_keys_pre_flush[i].size(); j++) {
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Slice key_from_the_log(keys_cf[index++]);
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Slice batch_key(batch_keys_pre_flush[i][j]);
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ASSERT_TRUE(key_from_the_log.compare(batch_key) == 0);
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}
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}
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for (size_t i = 0; i < batch_keys_post_flush.size(); i++) {
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for (size_t j = 0; j < batch_keys_post_flush[i].size(); j++) {
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Slice key_from_the_log(keys_cf[index++]);
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Slice batch_key(batch_keys_post_flush[i][j]);
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ASSERT_TRUE(key_from_the_log.compare(batch_key) == 0);
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}
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}
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ASSERT_TRUE(index == keys_cf.size());
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}
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#endif // ROCKSDB_LITE
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TEST_F(DBTest2, DISABLED_FirstSnapshotTest) {
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Options options;
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options.write_buffer_size = 100000; // Small write buffer
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options = CurrentOptions(options);
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CreateAndReopenWithCF({"pikachu"}, options);
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// This snapshot will have sequence number 0. When compaction encounters
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// this snapshot, CompactionIterator::findEarliestVisibleSnapshot() will
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// assert as it expects non-zero snapshots.
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//
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// One fix would be to simply remove this assert. However, a better fix
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// might
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// be to always have db sequence numbers start from 1 so that no code is
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// ever
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// confused by 0.
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const Snapshot* s1 = db_->GetSnapshot();
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Put(1, "k1", std::string(100000, 'x')); // Fill memtable
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Put(1, "k2", std::string(100000, 'y')); // Trigger flush
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db_->ReleaseSnapshot(s1);
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}
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} // namespace rocksdb
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int main(int argc, char** argv) {
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rocksdb::port::InstallStackTraceHandler();
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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