72502cf227
Summary:
This reverts the previous commit 1d7048c598, which broke the build.
Did a `git revert 1d7048c`.
Closes https://github.com/facebook/rocksdb/pull/2627
Differential Revision: D5476473
Pulled By: sagar0
fbshipit-source-id: 4756ff5c0dfc88c17eceb00e02c36176de728d06
815 lines
24 KiB
C++
815 lines
24 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root 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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// Introduction of SyncPoint effectively disabled building and running this test
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// in Release build.
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// which is a pity, it is a good test
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#if !defined(ROCKSDB_LITE)
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#include "db/db_test_util.h"
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#include "db/forward_iterator.h"
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#include "port/stack_trace.h"
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namespace rocksdb {
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class DBTestTailingIterator : public DBTestBase {
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public:
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DBTestTailingIterator() : DBTestBase("/db_tailing_iterator_test") {}
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};
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TEST_F(DBTestTailingIterator, TailingIteratorSingle) {
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ReadOptions read_options;
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read_options.tailing = true;
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std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
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iter->SeekToFirst();
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ASSERT_TRUE(!iter->Valid());
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// add a record and check that iter can see it
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ASSERT_OK(db_->Put(WriteOptions(), "mirko", "fodor"));
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iter->SeekToFirst();
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(iter->key().ToString(), "mirko");
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iter->Next();
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ASSERT_TRUE(!iter->Valid());
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}
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TEST_F(DBTestTailingIterator, TailingIteratorKeepAdding) {
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CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
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ReadOptions read_options;
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read_options.tailing = true;
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std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
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std::string value(1024, 'a');
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const int num_records = 10000;
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for (int i = 0; i < num_records; ++i) {
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char buf[32];
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snprintf(buf, sizeof(buf), "%016d", i);
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Slice key(buf, 16);
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ASSERT_OK(Put(1, key, value));
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iter->Seek(key);
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(iter->key().compare(key), 0);
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}
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}
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TEST_F(DBTestTailingIterator, TailingIteratorSeekToNext) {
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CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
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ReadOptions read_options;
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read_options.tailing = true;
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std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
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std::unique_ptr<Iterator> itern(db_->NewIterator(read_options, handles_[1]));
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std::string value(1024, 'a');
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const int num_records = 1000;
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for (int i = 1; i < num_records; ++i) {
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char buf1[32];
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char buf2[32];
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snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
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Slice key(buf1, 20);
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ASSERT_OK(Put(1, key, value));
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if (i % 100 == 99) {
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ASSERT_OK(Flush(1));
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}
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snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
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Slice target(buf2, 20);
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iter->Seek(target);
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(iter->key().compare(key), 0);
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if (i == 1) {
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itern->SeekToFirst();
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} else {
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itern->Next();
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}
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ASSERT_TRUE(itern->Valid());
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ASSERT_EQ(itern->key().compare(key), 0);
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}
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rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
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rocksdb::SyncPoint::GetInstance()->DisableProcessing();
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for (int i = 2 * num_records; i > 0; --i) {
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char buf1[32];
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char buf2[32];
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snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
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Slice key(buf1, 20);
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ASSERT_OK(Put(1, key, value));
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if (i % 100 == 99) {
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ASSERT_OK(Flush(1));
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}
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snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
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Slice target(buf2, 20);
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iter->Seek(target);
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(iter->key().compare(key), 0);
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}
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}
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TEST_F(DBTestTailingIterator, TailingIteratorTrimSeekToNext) {
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const uint64_t k150KB = 150 * 1024;
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Options options;
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options.write_buffer_size = k150KB;
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options.max_write_buffer_number = 3;
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options.min_write_buffer_number_to_merge = 2;
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options.env = env_;
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CreateAndReopenWithCF({"pikachu"}, options);
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ReadOptions read_options;
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read_options.tailing = true;
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int num_iters, deleted_iters;
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char bufe[32];
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snprintf(bufe, sizeof(bufe), "00b0%016d", 0);
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Slice keyu(bufe, 20);
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read_options.iterate_upper_bound = &keyu;
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std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
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std::unique_ptr<Iterator> itern(db_->NewIterator(read_options, handles_[1]));
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std::unique_ptr<Iterator> iterh(db_->NewIterator(read_options, handles_[1]));
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std::string value(1024, 'a');
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bool file_iters_deleted = false;
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bool file_iters_renewed_null = false;
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bool file_iters_renewed_copy = false;
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rocksdb::SyncPoint::GetInstance()->SetCallBack(
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"ForwardIterator::SeekInternal:Return", [&](void* arg) {
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ForwardIterator* fiter = reinterpret_cast<ForwardIterator*>(arg);
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ASSERT_TRUE(!file_iters_deleted ||
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fiter->TEST_CheckDeletedIters(&deleted_iters, &num_iters));
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});
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rocksdb::SyncPoint::GetInstance()->SetCallBack(
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"ForwardIterator::Next:Return", [&](void* arg) {
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ForwardIterator* fiter = reinterpret_cast<ForwardIterator*>(arg);
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ASSERT_TRUE(!file_iters_deleted ||
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fiter->TEST_CheckDeletedIters(&deleted_iters, &num_iters));
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});
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rocksdb::SyncPoint::GetInstance()->SetCallBack(
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"ForwardIterator::RenewIterators:Null",
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[&](void* arg) { file_iters_renewed_null = true; });
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rocksdb::SyncPoint::GetInstance()->SetCallBack(
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"ForwardIterator::RenewIterators:Copy",
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[&](void* arg) { file_iters_renewed_copy = true; });
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rocksdb::SyncPoint::GetInstance()->EnableProcessing();
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const int num_records = 1000;
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for (int i = 1; i < num_records; ++i) {
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char buf1[32];
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char buf2[32];
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char buf3[32];
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char buf4[32];
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snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
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snprintf(buf3, sizeof(buf3), "00b0%016d", i * 5);
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Slice key(buf1, 20);
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ASSERT_OK(Put(1, key, value));
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Slice keyn(buf3, 20);
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ASSERT_OK(Put(1, keyn, value));
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if (i % 100 == 99) {
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ASSERT_OK(Flush(1));
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dbfull()->TEST_WaitForCompact();
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if (i == 299) {
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file_iters_deleted = true;
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}
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snprintf(buf4, sizeof(buf4), "00a0%016d", i * 5 / 2);
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Slice target(buf4, 20);
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iterh->Seek(target);
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ASSERT_TRUE(iter->Valid());
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for (int j = (i + 1) * 5 / 2; j < i * 5; j += 5) {
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iterh->Next();
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ASSERT_TRUE(iterh->Valid());
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}
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if (i == 299) {
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file_iters_deleted = false;
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}
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}
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file_iters_deleted = true;
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snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
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Slice target(buf2, 20);
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iter->Seek(target);
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(iter->key().compare(key), 0);
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ASSERT_LE(num_iters, 1);
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if (i == 1) {
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itern->SeekToFirst();
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} else {
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itern->Next();
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}
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ASSERT_TRUE(itern->Valid());
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ASSERT_EQ(itern->key().compare(key), 0);
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ASSERT_LE(num_iters, 1);
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file_iters_deleted = false;
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}
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ASSERT_TRUE(file_iters_renewed_null);
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ASSERT_TRUE(file_iters_renewed_copy);
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iter = 0;
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itern = 0;
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iterh = 0;
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BlockBasedTableOptions table_options;
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table_options.no_block_cache = true;
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table_options.block_cache_compressed = nullptr;
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options.table_factory.reset(NewBlockBasedTableFactory(table_options));
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ReopenWithColumnFamilies({"default", "pikachu"}, options);
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read_options.read_tier = kBlockCacheTier;
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std::unique_ptr<Iterator> iteri(db_->NewIterator(read_options, handles_[1]));
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char buf5[32];
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snprintf(buf5, sizeof(buf5), "00a0%016d", (num_records / 2) * 5 - 2);
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Slice target1(buf5, 20);
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iteri->Seek(target1);
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ASSERT_TRUE(iteri->status().IsIncomplete());
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iteri = 0;
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read_options.read_tier = kReadAllTier;
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options.table_factory.reset(NewBlockBasedTableFactory());
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ReopenWithColumnFamilies({"default", "pikachu"}, options);
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iter.reset(db_->NewIterator(read_options, handles_[1]));
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for (int i = 2 * num_records; i > 0; --i) {
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char buf1[32];
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char buf2[32];
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snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
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Slice key(buf1, 20);
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ASSERT_OK(Put(1, key, value));
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if (i % 100 == 99) {
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ASSERT_OK(Flush(1));
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}
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snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
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Slice target(buf2, 20);
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iter->Seek(target);
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(iter->key().compare(key), 0);
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}
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}
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TEST_F(DBTestTailingIterator, TailingIteratorDeletes) {
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CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
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ReadOptions read_options;
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read_options.tailing = true;
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std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
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// write a single record, read it using the iterator, then delete it
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ASSERT_OK(Put(1, "0test", "test"));
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iter->SeekToFirst();
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(iter->key().ToString(), "0test");
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ASSERT_OK(Delete(1, "0test"));
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// write many more records
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const int num_records = 10000;
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std::string value(1024, 'A');
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for (int i = 0; i < num_records; ++i) {
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char buf[32];
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snprintf(buf, sizeof(buf), "1%015d", i);
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Slice key(buf, 16);
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ASSERT_OK(Put(1, key, value));
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}
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// force a flush to make sure that no records are read from memtable
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ASSERT_OK(Flush(1));
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// skip "0test"
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iter->Next();
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// make sure we can read all new records using the existing iterator
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int count = 0;
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for (; iter->Valid(); iter->Next(), ++count) ;
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ASSERT_EQ(count, num_records);
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}
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TEST_F(DBTestTailingIterator, TailingIteratorPrefixSeek) {
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ReadOptions read_options;
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read_options.tailing = true;
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Options options = CurrentOptions();
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options.create_if_missing = true;
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options.disable_auto_compactions = true;
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options.prefix_extractor.reset(NewFixedPrefixTransform(2));
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options.memtable_factory.reset(NewHashSkipListRepFactory(16));
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options.allow_concurrent_memtable_write = false;
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DestroyAndReopen(options);
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CreateAndReopenWithCF({"pikachu"}, options);
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std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
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ASSERT_OK(Put(1, "0101", "test"));
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ASSERT_OK(Flush(1));
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ASSERT_OK(Put(1, "0202", "test"));
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// Seek(0102) shouldn't find any records since 0202 has a different prefix
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iter->Seek("0102");
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ASSERT_TRUE(!iter->Valid());
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iter->Seek("0202");
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(iter->key().ToString(), "0202");
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iter->Next();
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ASSERT_TRUE(!iter->Valid());
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}
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TEST_F(DBTestTailingIterator, TailingIteratorIncomplete) {
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CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
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ReadOptions read_options;
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read_options.tailing = true;
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read_options.read_tier = kBlockCacheTier;
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std::string key("key");
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std::string value("value");
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ASSERT_OK(db_->Put(WriteOptions(), key, value));
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std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
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iter->SeekToFirst();
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// we either see the entry or it's not in cache
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ASSERT_TRUE(iter->Valid() || iter->status().IsIncomplete());
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ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
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iter->SeekToFirst();
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// should still be true after compaction
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ASSERT_TRUE(iter->Valid() || iter->status().IsIncomplete());
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}
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TEST_F(DBTestTailingIterator, TailingIteratorSeekToSame) {
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Options options = CurrentOptions();
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options.compaction_style = kCompactionStyleUniversal;
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options.write_buffer_size = 1000;
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CreateAndReopenWithCF({"pikachu"}, options);
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ReadOptions read_options;
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read_options.tailing = true;
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const int NROWS = 10000;
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// Write rows with keys 00000, 00002, 00004 etc.
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for (int i = 0; i < NROWS; ++i) {
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char buf[100];
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snprintf(buf, sizeof(buf), "%05d", 2*i);
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std::string key(buf);
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std::string value("value");
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ASSERT_OK(db_->Put(WriteOptions(), key, value));
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}
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std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
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// Seek to 00001. We expect to find 00002.
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std::string start_key = "00001";
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iter->Seek(start_key);
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ASSERT_TRUE(iter->Valid());
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std::string found = iter->key().ToString();
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ASSERT_EQ("00002", found);
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// Now seek to the same key. The iterator should remain in the same
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// position.
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iter->Seek(found);
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(found, iter->key().ToString());
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}
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// Sets iterate_upper_bound and verifies that ForwardIterator doesn't call
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// Seek() on immutable iterators when target key is >= prev_key and all
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// iterators, including the memtable iterator, are over the upper bound.
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TEST_F(DBTestTailingIterator, TailingIteratorUpperBound) {
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CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
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const Slice upper_bound("20", 3);
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ReadOptions read_options;
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read_options.tailing = true;
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read_options.iterate_upper_bound = &upper_bound;
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ASSERT_OK(Put(1, "11", "11"));
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ASSERT_OK(Put(1, "12", "12"));
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ASSERT_OK(Put(1, "22", "22"));
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ASSERT_OK(Flush(1)); // flush all those keys to an immutable SST file
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// Add another key to the memtable.
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ASSERT_OK(Put(1, "21", "21"));
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std::unique_ptr<Iterator> it(db_->NewIterator(read_options, handles_[1]));
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it->Seek("12");
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ASSERT_TRUE(it->Valid());
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ASSERT_EQ("12", it->key().ToString());
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it->Next();
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// Not valid since "21" is over the upper bound.
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ASSERT_FALSE(it->Valid());
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// This keeps track of the number of times NeedToSeekImmutable() was true.
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int immutable_seeks = 0;
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rocksdb::SyncPoint::GetInstance()->SetCallBack(
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"ForwardIterator::SeekInternal:Immutable",
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[&](void* arg) { ++immutable_seeks; });
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// Seek to 13. This should not require any immutable seeks.
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rocksdb::SyncPoint::GetInstance()->EnableProcessing();
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it->Seek("13");
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rocksdb::SyncPoint::GetInstance()->DisableProcessing();
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ASSERT_FALSE(it->Valid());
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ASSERT_EQ(0, immutable_seeks);
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}
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TEST_F(DBTestTailingIterator, TailingIteratorGap) {
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// level 1: [20, 25] [35, 40]
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// level 2: [10 - 15] [45 - 50]
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// level 3: [20, 30, 40]
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// Previously there is a bug in tailing_iterator that if there is a gap in
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// lower level, the key will be skipped if it is within the range between
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// the largest key of index n file and the smallest key of index n+1 file
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// if both file fit in that gap. In this example, 25 < key < 35
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// https://github.com/facebook/rocksdb/issues/1372
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CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
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ReadOptions read_options;
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read_options.tailing = true;
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ASSERT_OK(Put(1, "20", "20"));
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ASSERT_OK(Put(1, "30", "30"));
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ASSERT_OK(Put(1, "40", "40"));
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ASSERT_OK(Flush(1));
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MoveFilesToLevel(3, 1);
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ASSERT_OK(Put(1, "10", "10"));
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ASSERT_OK(Put(1, "15", "15"));
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ASSERT_OK(Flush(1));
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ASSERT_OK(Put(1, "45", "45"));
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ASSERT_OK(Put(1, "50", "50"));
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ASSERT_OK(Flush(1));
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MoveFilesToLevel(2, 1);
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ASSERT_OK(Put(1, "20", "20"));
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ASSERT_OK(Put(1, "25", "25"));
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ASSERT_OK(Flush(1));
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ASSERT_OK(Put(1, "35", "35"));
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ASSERT_OK(Put(1, "40", "40"));
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ASSERT_OK(Flush(1));
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MoveFilesToLevel(1, 1);
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ColumnFamilyMetaData meta;
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db_->GetColumnFamilyMetaData(handles_[1], &meta);
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std::unique_ptr<Iterator> it(db_->NewIterator(read_options, handles_[1]));
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it->Seek("30");
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ASSERT_TRUE(it->Valid());
|
|
ASSERT_EQ("30", it->key().ToString());
|
|
|
|
it->Next();
|
|
ASSERT_TRUE(it->Valid());
|
|
ASSERT_EQ("35", it->key().ToString());
|
|
|
|
it->Next();
|
|
ASSERT_TRUE(it->Valid());
|
|
ASSERT_EQ("40", it->key().ToString());
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, ManagedTailingIteratorSingle) {
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
read_options.managed = true;
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
iter->SeekToFirst();
|
|
ASSERT_TRUE(!iter->Valid());
|
|
|
|
// add a record and check that iter can see it
|
|
ASSERT_OK(db_->Put(WriteOptions(), "mirko", "fodor"));
|
|
iter->SeekToFirst();
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->key().ToString(), "mirko");
|
|
|
|
iter->Next();
|
|
ASSERT_TRUE(!iter->Valid());
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, ManagedTailingIteratorKeepAdding) {
|
|
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
read_options.managed = true;
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
|
|
std::string value(1024, 'a');
|
|
|
|
const int num_records = 10000;
|
|
for (int i = 0; i < num_records; ++i) {
|
|
char buf[32];
|
|
snprintf(buf, sizeof(buf), "%016d", i);
|
|
|
|
Slice key(buf, 16);
|
|
ASSERT_OK(Put(1, key, value));
|
|
|
|
iter->Seek(key);
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->key().compare(key), 0);
|
|
}
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, ManagedTailingIteratorSeekToNext) {
|
|
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
read_options.managed = true;
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
|
|
std::string value(1024, 'a');
|
|
|
|
const int num_records = 1000;
|
|
for (int i = 1; i < num_records; ++i) {
|
|
char buf1[32];
|
|
char buf2[32];
|
|
snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
|
|
|
|
Slice key(buf1, 20);
|
|
ASSERT_OK(Put(1, key, value));
|
|
|
|
if (i % 100 == 99) {
|
|
ASSERT_OK(Flush(1));
|
|
}
|
|
|
|
snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
|
|
Slice target(buf2, 20);
|
|
iter->Seek(target);
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->key().compare(key), 0);
|
|
}
|
|
for (int i = 2 * num_records; i > 0; --i) {
|
|
char buf1[32];
|
|
char buf2[32];
|
|
snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
|
|
|
|
Slice key(buf1, 20);
|
|
ASSERT_OK(Put(1, key, value));
|
|
|
|
if (i % 100 == 99) {
|
|
ASSERT_OK(Flush(1));
|
|
}
|
|
|
|
snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
|
|
Slice target(buf2, 20);
|
|
iter->Seek(target);
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->key().compare(key), 0);
|
|
}
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, ManagedTailingIteratorDeletes) {
|
|
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
read_options.managed = true;
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
|
|
|
|
// write a single record, read it using the iterator, then delete it
|
|
ASSERT_OK(Put(1, "0test", "test"));
|
|
iter->SeekToFirst();
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->key().ToString(), "0test");
|
|
ASSERT_OK(Delete(1, "0test"));
|
|
|
|
// write many more records
|
|
const int num_records = 10000;
|
|
std::string value(1024, 'A');
|
|
|
|
for (int i = 0; i < num_records; ++i) {
|
|
char buf[32];
|
|
snprintf(buf, sizeof(buf), "1%015d", i);
|
|
|
|
Slice key(buf, 16);
|
|
ASSERT_OK(Put(1, key, value));
|
|
}
|
|
|
|
// force a flush to make sure that no records are read from memtable
|
|
ASSERT_OK(Flush(1));
|
|
|
|
// skip "0test"
|
|
iter->Next();
|
|
|
|
// make sure we can read all new records using the existing iterator
|
|
int count = 0;
|
|
for (; iter->Valid(); iter->Next(), ++count) {
|
|
}
|
|
|
|
ASSERT_EQ(count, num_records);
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, ManagedTailingIteratorPrefixSeek) {
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
read_options.managed = true;
|
|
|
|
Options options = CurrentOptions();
|
|
options.create_if_missing = true;
|
|
options.disable_auto_compactions = true;
|
|
options.prefix_extractor.reset(NewFixedPrefixTransform(2));
|
|
options.memtable_factory.reset(NewHashSkipListRepFactory(16));
|
|
options.allow_concurrent_memtable_write = false;
|
|
DestroyAndReopen(options);
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
|
|
ASSERT_OK(Put(1, "0101", "test"));
|
|
|
|
ASSERT_OK(Flush(1));
|
|
|
|
ASSERT_OK(Put(1, "0202", "test"));
|
|
|
|
// Seek(0102) shouldn't find any records since 0202 has a different prefix
|
|
iter->Seek("0102");
|
|
ASSERT_TRUE(!iter->Valid());
|
|
|
|
iter->Seek("0202");
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->key().ToString(), "0202");
|
|
|
|
iter->Next();
|
|
ASSERT_TRUE(!iter->Valid());
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, ManagedTailingIteratorIncomplete) {
|
|
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
read_options.managed = true;
|
|
read_options.read_tier = kBlockCacheTier;
|
|
|
|
std::string key = "key";
|
|
std::string value = "value";
|
|
|
|
ASSERT_OK(db_->Put(WriteOptions(), key, value));
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
iter->SeekToFirst();
|
|
// we either see the entry or it's not in cache
|
|
ASSERT_TRUE(iter->Valid() || iter->status().IsIncomplete());
|
|
|
|
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
iter->SeekToFirst();
|
|
// should still be true after compaction
|
|
ASSERT_TRUE(iter->Valid() || iter->status().IsIncomplete());
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, ManagedTailingIteratorSeekToSame) {
|
|
Options options = CurrentOptions();
|
|
options.compaction_style = kCompactionStyleUniversal;
|
|
options.write_buffer_size = 1000;
|
|
CreateAndReopenWithCF({"pikachu"}, options);
|
|
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
read_options.managed = true;
|
|
|
|
const int NROWS = 10000;
|
|
// Write rows with keys 00000, 00002, 00004 etc.
|
|
for (int i = 0; i < NROWS; ++i) {
|
|
char buf[100];
|
|
snprintf(buf, sizeof(buf), "%05d", 2 * i);
|
|
std::string key(buf);
|
|
std::string value("value");
|
|
ASSERT_OK(db_->Put(WriteOptions(), key, value));
|
|
}
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
// Seek to 00001. We expect to find 00002.
|
|
std::string start_key = "00001";
|
|
iter->Seek(start_key);
|
|
ASSERT_TRUE(iter->Valid());
|
|
|
|
std::string found = iter->key().ToString();
|
|
ASSERT_EQ("00002", found);
|
|
|
|
// Now seek to the same key. The iterator should remain in the same
|
|
// position.
|
|
iter->Seek(found);
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(found, iter->key().ToString());
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, ForwardIteratorVersionProperty) {
|
|
Options options = CurrentOptions();
|
|
options.write_buffer_size = 1000;
|
|
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
|
|
Put("foo", "bar");
|
|
|
|
uint64_t v1, v2, v3, v4;
|
|
{
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
iter->Seek("foo");
|
|
std::string prop_value;
|
|
ASSERT_OK(iter->GetProperty("rocksdb.iterator.super-version-number",
|
|
&prop_value));
|
|
v1 = static_cast<uint64_t>(std::atoi(prop_value.c_str()));
|
|
|
|
Put("foo1", "bar1");
|
|
Flush();
|
|
|
|
ASSERT_OK(iter->GetProperty("rocksdb.iterator.super-version-number",
|
|
&prop_value));
|
|
v2 = static_cast<uint64_t>(std::atoi(prop_value.c_str()));
|
|
|
|
iter->Seek("f");
|
|
|
|
ASSERT_OK(iter->GetProperty("rocksdb.iterator.super-version-number",
|
|
&prop_value));
|
|
v3 = static_cast<uint64_t>(std::atoi(prop_value.c_str()));
|
|
|
|
ASSERT_EQ(v1, v2);
|
|
ASSERT_GT(v3, v2);
|
|
}
|
|
|
|
{
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
iter->Seek("foo");
|
|
std::string prop_value;
|
|
ASSERT_OK(iter->GetProperty("rocksdb.iterator.super-version-number",
|
|
&prop_value));
|
|
v4 = static_cast<uint64_t>(std::atoi(prop_value.c_str()));
|
|
}
|
|
ASSERT_EQ(v3, v4);
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, SeekWithUpperBoundBug) {
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
const Slice upper_bound("cc", 3);
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
|
|
|
|
// 1st L0 file
|
|
ASSERT_OK(db_->Put(WriteOptions(), "aa", "SEEN"));
|
|
ASSERT_OK(Flush());
|
|
|
|
// 2nd L0 file
|
|
ASSERT_OK(db_->Put(WriteOptions(), "zz", "NOT-SEEN"));
|
|
ASSERT_OK(Flush());
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
|
|
iter->Seek("aa");
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->key().ToString(), "aa");
|
|
}
|
|
|
|
TEST_F(DBTestTailingIterator, SeekToFirstWithUpperBoundBug) {
|
|
ReadOptions read_options;
|
|
read_options.tailing = true;
|
|
const Slice upper_bound("cc", 3);
|
|
read_options.iterate_upper_bound = &upper_bound;
|
|
|
|
|
|
// 1st L0 file
|
|
ASSERT_OK(db_->Put(WriteOptions(), "aa", "SEEN"));
|
|
ASSERT_OK(Flush());
|
|
|
|
// 2nd L0 file
|
|
ASSERT_OK(db_->Put(WriteOptions(), "zz", "NOT-SEEN"));
|
|
ASSERT_OK(Flush());
|
|
|
|
std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
|
|
|
|
iter->SeekToFirst();
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->key().ToString(), "aa");
|
|
|
|
iter->Next();
|
|
ASSERT_FALSE(iter->Valid());
|
|
|
|
iter->SeekToFirst();
|
|
ASSERT_TRUE(iter->Valid());
|
|
ASSERT_EQ(iter->key().ToString(), "aa");
|
|
}
|
|
|
|
} // namespace rocksdb
|
|
|
|
#endif // !defined(ROCKSDB_LITE)
|
|
|
|
int main(int argc, char** argv) {
|
|
#if !defined(ROCKSDB_LITE)
|
|
rocksdb::port::InstallStackTraceHandler();
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|