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external_sst_file_basic_test.cc
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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#include <functional>
#include "db/db_test_util.h"
#include "port/port.h"
#include "port/stack_trace.h"
#include "rocksdb/sst_file_writer.h"
#include "test_util/fault_injection_test_env.h"
#include "test_util/testutil.h"
namespace ROCKSDB_NAMESPACE {
#ifndef ROCKSDB_LITE
class ExternalSSTFileBasicTest
: public DBTestBase,
public ::testing::WithParamInterface<std::tuple<bool, bool>> {
public:
ExternalSSTFileBasicTest() : DBTestBase("/external_sst_file_basic_test") {
sst_files_dir_ = dbname_ + "/sst_files/";
fault_injection_test_env_.reset(new FaultInjectionTestEnv(Env::Default()));
DestroyAndRecreateExternalSSTFilesDir();
}
void DestroyAndRecreateExternalSSTFilesDir() {
test::DestroyDir(env_, sst_files_dir_);
env_->CreateDir(sst_files_dir_);
}
Status DeprecatedAddFile(const std::vector<std::string>& files,
bool move_files = false,
bool skip_snapshot_check = false) {
IngestExternalFileOptions opts;
opts.move_files = move_files;
opts.snapshot_consistency = !skip_snapshot_check;
opts.allow_global_seqno = false;
opts.allow_blocking_flush = false;
return db_->IngestExternalFile(files, opts);
}
Status GenerateAndAddExternalFile(
const Options options, std::vector<int> keys,
const std::vector<ValueType>& value_types,
std::vector<std::pair<int, int>> range_deletions, int file_id,
bool write_global_seqno, bool verify_checksums_before_ingest,
std::map<std::string, std::string>* true_data) {
assert(value_types.size() == 1 || keys.size() == value_types.size());
std::string file_path = sst_files_dir_ + ToString(file_id);
SstFileWriter sst_file_writer(EnvOptions(), options);
Status s = sst_file_writer.Open(file_path);
if (!s.ok()) {
return s;
}
for (size_t i = 0; i < range_deletions.size(); i++) {
// Account for the effect of range deletions on true_data before
// all point operators, even though sst_file_writer.DeleteRange
// must be called before other sst_file_writer methods. This is
// because point writes take precedence over range deletions
// in the same ingested sst.
std::string start_key = Key(range_deletions[i].first);
std::string end_key = Key(range_deletions[i].second);
s = sst_file_writer.DeleteRange(start_key, end_key);
if (!s.ok()) {
sst_file_writer.Finish();
return s;
}
auto start_key_it = true_data->find(start_key);
if (start_key_it == true_data->end()) {
start_key_it = true_data->upper_bound(start_key);
}
auto end_key_it = true_data->find(end_key);
if (end_key_it == true_data->end()) {
end_key_it = true_data->upper_bound(end_key);
}
true_data->erase(start_key_it, end_key_it);
}
for (size_t i = 0; i < keys.size(); i++) {
std::string key = Key(keys[i]);
std::string value = Key(keys[i]) + ToString(file_id);
ValueType value_type =
(value_types.size() == 1 ? value_types[0] : value_types[i]);
switch (value_type) {
case ValueType::kTypeValue:
s = sst_file_writer.Put(key, value);
(*true_data)[key] = value;
break;
case ValueType::kTypeMerge:
s = sst_file_writer.Merge(key, value);
// we only use TestPutOperator in this test
(*true_data)[key] = value;
break;
case ValueType::kTypeDeletion:
s = sst_file_writer.Delete(key);
true_data->erase(key);
break;
default:
return Status::InvalidArgument("Value type is not supported");
}
if (!s.ok()) {
sst_file_writer.Finish();
return s;
}
}
s = sst_file_writer.Finish();
if (s.ok()) {
IngestExternalFileOptions ifo;
ifo.allow_global_seqno = true;
ifo.write_global_seqno = write_global_seqno;
ifo.verify_checksums_before_ingest = verify_checksums_before_ingest;
s = db_->IngestExternalFile({file_path}, ifo);
}
return s;
}
Status GenerateAndAddExternalFile(
const Options options, std::vector<int> keys,
const std::vector<ValueType>& value_types, int file_id,
bool write_global_seqno, bool verify_checksums_before_ingest,
std::map<std::string, std::string>* true_data) {
return GenerateAndAddExternalFile(
options, keys, value_types, {}, file_id, write_global_seqno,
verify_checksums_before_ingest, true_data);
}
Status GenerateAndAddExternalFile(
const Options options, std::vector<int> keys, const ValueType value_type,
int file_id, bool write_global_seqno, bool verify_checksums_before_ingest,
std::map<std::string, std::string>* true_data) {
return GenerateAndAddExternalFile(
options, keys, std::vector<ValueType>(1, value_type), file_id,
write_global_seqno, verify_checksums_before_ingest, true_data);
}
~ExternalSSTFileBasicTest() override {
test::DestroyDir(env_, sst_files_dir_);
}
protected:
std::string sst_files_dir_;
std::unique_ptr<FaultInjectionTestEnv> fault_injection_test_env_;
};
TEST_F(ExternalSSTFileBasicTest, Basic) {
Options options = CurrentOptions();
SstFileWriter sst_file_writer(EnvOptions(), options);
// Current file size should be 0 after sst_file_writer init and before open a
// file.
ASSERT_EQ(sst_file_writer.FileSize(), 0);
// file1.sst (0 => 99)
std::string file1 = sst_files_dir_ + "file1.sst";
ASSERT_OK(sst_file_writer.Open(file1));
for (int k = 0; k < 100; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file1_info;
Status s = sst_file_writer.Finish(&file1_info);
ASSERT_TRUE(s.ok()) << s.ToString();
// Current file size should be non-zero after success write.
ASSERT_GT(sst_file_writer.FileSize(), 0);
ASSERT_EQ(file1_info.file_path, file1);
ASSERT_EQ(file1_info.num_entries, 100);
ASSERT_EQ(file1_info.smallest_key, Key(0));
ASSERT_EQ(file1_info.largest_key, Key(99));
ASSERT_EQ(file1_info.num_range_del_entries, 0);
ASSERT_EQ(file1_info.smallest_range_del_key, "");
ASSERT_EQ(file1_info.largest_range_del_key, "");
// sst_file_writer already finished, cannot add this value
s = sst_file_writer.Put(Key(100), "bad_val");
ASSERT_FALSE(s.ok()) << s.ToString();
s = sst_file_writer.DeleteRange(Key(100), Key(200));
ASSERT_FALSE(s.ok()) << s.ToString();
DestroyAndReopen(options);
// Add file using file path
s = DeprecatedAddFile({file1});
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(db_->GetLatestSequenceNumber(), 0U);
for (int k = 0; k < 100; k++) {
ASSERT_EQ(Get(Key(k)), Key(k) + "_val");
}
DestroyAndRecreateExternalSSTFilesDir();
}
TEST_F(ExternalSSTFileBasicTest, NoCopy) {
Options options = CurrentOptions();
const ImmutableCFOptions ioptions(options);
SstFileWriter sst_file_writer(EnvOptions(), options);
// file1.sst (0 => 99)
std::string file1 = sst_files_dir_ + "file1.sst";
ASSERT_OK(sst_file_writer.Open(file1));
for (int k = 0; k < 100; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file1_info;
Status s = sst_file_writer.Finish(&file1_info);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(file1_info.file_path, file1);
ASSERT_EQ(file1_info.num_entries, 100);
ASSERT_EQ(file1_info.smallest_key, Key(0));
ASSERT_EQ(file1_info.largest_key, Key(99));
// file2.sst (100 => 299)
std::string file2 = sst_files_dir_ + "file2.sst";
ASSERT_OK(sst_file_writer.Open(file2));
for (int k = 100; k < 300; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file2_info;
s = sst_file_writer.Finish(&file2_info);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(file2_info.file_path, file2);
ASSERT_EQ(file2_info.num_entries, 200);
ASSERT_EQ(file2_info.smallest_key, Key(100));
ASSERT_EQ(file2_info.largest_key, Key(299));
// file3.sst (110 => 124) .. overlap with file2.sst
std::string file3 = sst_files_dir_ + "file3.sst";
ASSERT_OK(sst_file_writer.Open(file3));
for (int k = 110; k < 125; k++) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val_overlap"));
}
ExternalSstFileInfo file3_info;
s = sst_file_writer.Finish(&file3_info);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(file3_info.file_path, file3);
ASSERT_EQ(file3_info.num_entries, 15);
ASSERT_EQ(file3_info.smallest_key, Key(110));
ASSERT_EQ(file3_info.largest_key, Key(124));
s = DeprecatedAddFile({file1}, true /* move file */);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(Status::NotFound(), env_->FileExists(file1));
s = DeprecatedAddFile({file2}, false /* copy file */);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_OK(env_->FileExists(file2));
// This file has overlapping values with the existing data
s = DeprecatedAddFile({file3}, true /* move file */);
ASSERT_FALSE(s.ok()) << s.ToString();
ASSERT_OK(env_->FileExists(file3));
for (int k = 0; k < 300; k++) {
ASSERT_EQ(Get(Key(k)), Key(k) + "_val");
}
}
TEST_P(ExternalSSTFileBasicTest, IngestFileWithGlobalSeqnoPickedSeqno) {
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
do {
Options options = CurrentOptions();
DestroyAndReopen(options);
std::map<std::string, std::string> true_data;
int file_id = 1;
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 2, 3, 4, 5, 6}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 0);
ASSERT_OK(GenerateAndAddExternalFile(
options, {10, 11, 12, 13}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 0);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 4, 6}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 1);
ASSERT_OK(GenerateAndAddExternalFile(
options, {11, 15, 19}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {120, 130}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 130}, ValueType::kTypeValue, file_id++, write_global_seqno,
verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 3);
// Write some keys through normal write path
for (int i = 0; i < 50; i++) {
ASSERT_OK(Put(Key(i), "memtable"));
true_data[Key(i)] = "memtable";
}
SequenceNumber last_seqno = dbfull()->GetLatestSequenceNumber();
ASSERT_OK(GenerateAndAddExternalFile(
options, {60, 61, 62}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno);
ASSERT_OK(GenerateAndAddExternalFile(
options, {40, 41, 42}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 1);
ASSERT_OK(GenerateAndAddExternalFile(
options, {20, 30, 40}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 2);
const Snapshot* snapshot = db_->GetSnapshot();
// We will need a seqno for the file regardless if the file overwrite
// keys in the DB or not because we have a snapshot
ASSERT_OK(GenerateAndAddExternalFile(
options, {1000, 1002}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// A global seqno will be assigned anyway because of the snapshot
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 3);
ASSERT_OK(GenerateAndAddExternalFile(
options, {2000, 3002}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// A global seqno will be assigned anyway because of the snapshot
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 4);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 20, 40, 100, 150}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// A global seqno will be assigned anyway because of the snapshot
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 5);
db_->ReleaseSnapshot(snapshot);
ASSERT_OK(GenerateAndAddExternalFile(
options, {5000, 5001}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// No snapshot anymore, no need to assign a seqno
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 5);
size_t kcnt = 0;
VerifyDBFromMap(true_data, &kcnt, false);
} while (ChangeOptionsForFileIngestionTest());
}
TEST_P(ExternalSSTFileBasicTest, IngestFileWithMultipleValueType) {
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
do {
Options options = CurrentOptions();
options.merge_operator.reset(new TestPutOperator());
DestroyAndReopen(options);
std::map<std::string, std::string> true_data;
int file_id = 1;
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 2, 3, 4, 5, 6}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 0);
ASSERT_OK(GenerateAndAddExternalFile(
options, {10, 11, 12, 13}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 0);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 4, 6}, ValueType::kTypeMerge, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 1);
ASSERT_OK(GenerateAndAddExternalFile(
options, {11, 15, 19}, ValueType::kTypeDeletion, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {120, 130}, ValueType::kTypeMerge, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 130}, ValueType::kTypeDeletion, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 3);
ASSERT_OK(GenerateAndAddExternalFile(
options, {120}, {ValueType::kTypeValue}, {{120, 135}}, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 4);
ASSERT_OK(GenerateAndAddExternalFile(
options, {}, {}, {{110, 120}}, file_id++, write_global_seqno,
verify_checksums_before_ingest, &true_data));
// The range deletion ends on a key, but it doesn't actually delete
// this key because the largest key in the range is exclusive. Still,
// it counts as an overlap so a new seqno will be assigned.
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 5);
ASSERT_OK(GenerateAndAddExternalFile(
options, {}, {}, {{100, 109}}, file_id++, write_global_seqno,
verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 5);
// Write some keys through normal write path
for (int i = 0; i < 50; i++) {
ASSERT_OK(Put(Key(i), "memtable"));
true_data[Key(i)] = "memtable";
}
SequenceNumber last_seqno = dbfull()->GetLatestSequenceNumber();
ASSERT_OK(GenerateAndAddExternalFile(
options, {60, 61, 62}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno);
ASSERT_OK(GenerateAndAddExternalFile(
options, {40, 41, 42}, ValueType::kTypeMerge, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 1);
ASSERT_OK(GenerateAndAddExternalFile(
options, {20, 30, 40}, ValueType::kTypeDeletion, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 2);
const Snapshot* snapshot = db_->GetSnapshot();
// We will need a seqno for the file regardless if the file overwrite
// keys in the DB or not because we have a snapshot
ASSERT_OK(GenerateAndAddExternalFile(
options, {1000, 1002}, ValueType::kTypeMerge, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// A global seqno will be assigned anyway because of the snapshot
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 3);
ASSERT_OK(GenerateAndAddExternalFile(
options, {2000, 3002}, ValueType::kTypeMerge, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// A global seqno will be assigned anyway because of the snapshot
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 4);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 20, 40, 100, 150}, ValueType::kTypeMerge, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// A global seqno will be assigned anyway because of the snapshot
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 5);
db_->ReleaseSnapshot(snapshot);
ASSERT_OK(GenerateAndAddExternalFile(
options, {5000, 5001}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data));
// No snapshot anymore, no need to assign a seqno
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 5);
size_t kcnt = 0;
VerifyDBFromMap(true_data, &kcnt, false);
} while (ChangeOptionsForFileIngestionTest());
}
TEST_P(ExternalSSTFileBasicTest, IngestFileWithMixedValueType) {
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
do {
Options options = CurrentOptions();
options.merge_operator.reset(new TestPutOperator());
DestroyAndReopen(options);
std::map<std::string, std::string> true_data;
int file_id = 1;
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 2, 3, 4, 5, 6},
{ValueType::kTypeValue, ValueType::kTypeMerge, ValueType::kTypeValue,
ValueType::kTypeMerge, ValueType::kTypeValue, ValueType::kTypeMerge},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 0);
ASSERT_OK(GenerateAndAddExternalFile(
options, {10, 11, 12, 13},
{ValueType::kTypeValue, ValueType::kTypeMerge, ValueType::kTypeValue,
ValueType::kTypeMerge},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 0);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 4, 6},
{ValueType::kTypeDeletion, ValueType::kTypeValue,
ValueType::kTypeMerge},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 1);
ASSERT_OK(GenerateAndAddExternalFile(
options, {11, 15, 19},
{ValueType::kTypeDeletion, ValueType::kTypeMerge,
ValueType::kTypeValue},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {120, 130}, {ValueType::kTypeValue, ValueType::kTypeMerge},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 130}, {ValueType::kTypeMerge, ValueType::kTypeDeletion},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 3);
ASSERT_OK(GenerateAndAddExternalFile(
options, {150, 151, 152},
{ValueType::kTypeValue, ValueType::kTypeMerge,
ValueType::kTypeDeletion},
{{150, 160}, {180, 190}}, file_id++, write_global_seqno,
verify_checksums_before_ingest, &true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 3);
ASSERT_OK(GenerateAndAddExternalFile(
options, {150, 151, 152},
{ValueType::kTypeValue, ValueType::kTypeMerge, ValueType::kTypeValue},
{{200, 250}}, file_id++, write_global_seqno,
verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 4);
ASSERT_OK(GenerateAndAddExternalFile(
options, {300, 301, 302},
{ValueType::kTypeValue, ValueType::kTypeMerge,
ValueType::kTypeDeletion},
{{1, 2}, {152, 154}}, file_id++, write_global_seqno,
verify_checksums_before_ingest, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 5);
// Write some keys through normal write path
for (int i = 0; i < 50; i++) {
ASSERT_OK(Put(Key(i), "memtable"));
true_data[Key(i)] = "memtable";
}
SequenceNumber last_seqno = dbfull()->GetLatestSequenceNumber();
ASSERT_OK(GenerateAndAddExternalFile(
options, {60, 61, 62},
{ValueType::kTypeValue, ValueType::kTypeMerge, ValueType::kTypeValue},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno);
ASSERT_OK(GenerateAndAddExternalFile(
options, {40, 41, 42},
{ValueType::kTypeValue, ValueType::kTypeDeletion,
ValueType::kTypeDeletion},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 1);
ASSERT_OK(GenerateAndAddExternalFile(
options, {20, 30, 40},
{ValueType::kTypeDeletion, ValueType::kTypeDeletion,
ValueType::kTypeDeletion},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 2);
const Snapshot* snapshot = db_->GetSnapshot();
// We will need a seqno for the file regardless if the file overwrite
// keys in the DB or not because we have a snapshot
ASSERT_OK(GenerateAndAddExternalFile(
options, {1000, 1002}, {ValueType::kTypeValue, ValueType::kTypeMerge},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// A global seqno will be assigned anyway because of the snapshot
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 3);
ASSERT_OK(GenerateAndAddExternalFile(
options, {2000, 3002}, {ValueType::kTypeValue, ValueType::kTypeMerge},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// A global seqno will be assigned anyway because of the snapshot
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 4);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 20, 40, 100, 150},
{ValueType::kTypeDeletion, ValueType::kTypeDeletion,
ValueType::kTypeValue, ValueType::kTypeMerge, ValueType::kTypeMerge},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// A global seqno will be assigned anyway because of the snapshot
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 5);
db_->ReleaseSnapshot(snapshot);
ASSERT_OK(GenerateAndAddExternalFile(
options, {5000, 5001}, {ValueType::kTypeValue, ValueType::kTypeMerge},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
// No snapshot anymore, no need to assign a seqno
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 5);
size_t kcnt = 0;
VerifyDBFromMap(true_data, &kcnt, false);
} while (ChangeOptionsForFileIngestionTest());
}
TEST_F(ExternalSSTFileBasicTest, FadviseTrigger) {
Options options = CurrentOptions();
const int kNumKeys = 10000;
size_t total_fadvised_bytes = 0;
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"SstFileWriter::Rep::InvalidatePageCache", [&](void* arg) {
size_t fadvise_size = *(reinterpret_cast<size_t*>(arg));
total_fadvised_bytes += fadvise_size;
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
std::unique_ptr<SstFileWriter> sst_file_writer;
std::string sst_file_path = sst_files_dir_ + "file_fadvise_disable.sst";
sst_file_writer.reset(
new SstFileWriter(EnvOptions(), options, nullptr, false));
ASSERT_OK(sst_file_writer->Open(sst_file_path));
for (int i = 0; i < kNumKeys; i++) {
ASSERT_OK(sst_file_writer->Put(Key(i), Key(i)));
}
ASSERT_OK(sst_file_writer->Finish());
// fadvise disabled
ASSERT_EQ(total_fadvised_bytes, 0);
sst_file_path = sst_files_dir_ + "file_fadvise_enable.sst";
sst_file_writer.reset(
new SstFileWriter(EnvOptions(), options, nullptr, true));
ASSERT_OK(sst_file_writer->Open(sst_file_path));
for (int i = 0; i < kNumKeys; i++) {
ASSERT_OK(sst_file_writer->Put(Key(i), Key(i)));
}
ASSERT_OK(sst_file_writer->Finish());
// fadvise enabled
ASSERT_EQ(total_fadvised_bytes, sst_file_writer->FileSize());
ASSERT_GT(total_fadvised_bytes, 0);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(ExternalSSTFileBasicTest, SyncFailure) {
Options options;
options.create_if_missing = true;
options.env = fault_injection_test_env_.get();
std::vector<std::pair<std::string, std::string>> test_cases = {
{"ExternalSstFileIngestionJob::BeforeSyncIngestedFile",
"ExternalSstFileIngestionJob::AfterSyncIngestedFile"},
{"ExternalSstFileIngestionJob::BeforeSyncDir",
"ExternalSstFileIngestionJob::AfterSyncDir"},
{"ExternalSstFileIngestionJob::BeforeSyncGlobalSeqno",
"ExternalSstFileIngestionJob::AfterSyncGlobalSeqno"}};
for (size_t i = 0; i < test_cases.size(); i++) {
SyncPoint::GetInstance()->SetCallBack(test_cases[i].first, [&](void*) {
fault_injection_test_env_->SetFilesystemActive(false);
});
SyncPoint::GetInstance()->SetCallBack(test_cases[i].second, [&](void*) {
fault_injection_test_env_->SetFilesystemActive(true);
});
SyncPoint::GetInstance()->EnableProcessing();
DestroyAndReopen(options);
if (i == 2) {
ASSERT_OK(Put("foo", "v1"));
}
Options sst_file_writer_options;
std::unique_ptr<SstFileWriter> sst_file_writer(
new SstFileWriter(EnvOptions(), sst_file_writer_options));
std::string file_name =
sst_files_dir_ + "sync_failure_test_" + ToString(i) + ".sst";
ASSERT_OK(sst_file_writer->Open(file_name));
ASSERT_OK(sst_file_writer->Put("bar", "v2"));
ASSERT_OK(sst_file_writer->Finish());
IngestExternalFileOptions ingest_opt;
if (i == 0) {
ingest_opt.move_files = true;
}
const Snapshot* snapshot = db_->GetSnapshot();
if (i == 2) {
ingest_opt.write_global_seqno = true;
}
ASSERT_FALSE(db_->IngestExternalFile({file_name}, ingest_opt).ok());
db_->ReleaseSnapshot(snapshot);
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
Destroy(options);
}
}
TEST_F(ExternalSSTFileBasicTest, VerifyChecksumReadahead) {
Options options;
options.create_if_missing = true;
SpecialEnv senv(Env::Default());
options.env = &senv;
DestroyAndReopen(options);
Options sst_file_writer_options;
std::unique_ptr<SstFileWriter> sst_file_writer(
new SstFileWriter(EnvOptions(), sst_file_writer_options));
std::string file_name = sst_files_dir_ + "verify_checksum_readahead_test.sst";
ASSERT_OK(sst_file_writer->Open(file_name));
Random rnd(301);
std::string value = DBTestBase::RandomString(&rnd, 4000);
for (int i = 0; i < 5000; i++) {
ASSERT_OK(sst_file_writer->Put(DBTestBase::Key(i), value));
}
ASSERT_OK(sst_file_writer->Finish());
// Ingest it once without verifying checksums to see the baseline
// preads.
IngestExternalFileOptions ingest_opt;
ingest_opt.move_files = false;
senv.count_random_reads_ = true;
senv.random_read_bytes_counter_ = 0;
ASSERT_OK(db_->IngestExternalFile({file_name}, ingest_opt));
auto base_num_reads = senv.random_read_counter_.Read();
// Make sure the counter is enabled.
ASSERT_GT(base_num_reads, 0);
// Ingest again and observe the reads made for for readahead.
ingest_opt.move_files = false;
ingest_opt.verify_checksums_before_ingest = true;
ingest_opt.verify_checksums_readahead_size = size_t{2 * 1024 * 1024};
senv.count_random_reads_ = true;
senv.random_read_bytes_counter_ = 0;
ASSERT_OK(db_->IngestExternalFile({file_name}, ingest_opt));
// Make sure the counter is enabled.
ASSERT_GT(senv.random_read_counter_.Read() - base_num_reads, 0);
// The SST file is about 20MB. Readahead size is 2MB.
// Give a conservative 15 reads for metadata blocks, the number
// of random reads should be within 20 MB / 2MB + 15 = 25.
ASSERT_LE(senv.random_read_counter_.Read() - base_num_reads, 40);
Destroy(options);
}
TEST_F(ExternalSSTFileBasicTest, IngestRangeDeletionTombstoneWithGlobalSeqno) {
for (int i = 5; i < 25; i++) {
ASSERT_OK(db_->Put(WriteOptions(), db_->DefaultColumnFamily(), Key(i),
Key(i) + "_val"));
}
Options options = CurrentOptions();
options.disable_auto_compactions = true;
Reopen(options);
SstFileWriter sst_file_writer(EnvOptions(), options);
// file.sst (delete 0 => 30)
std::string file = sst_files_dir_ + "file.sst";
ASSERT_OK(sst_file_writer.Open(file));
ASSERT_OK(sst_file_writer.DeleteRange(Key(0), Key(30)));
ExternalSstFileInfo file_info;
ASSERT_OK(sst_file_writer.Finish(&file_info));
ASSERT_EQ(file_info.file_path, file);
ASSERT_EQ(file_info.num_entries, 0);
ASSERT_EQ(file_info.smallest_key, "");
ASSERT_EQ(file_info.largest_key, "");
ASSERT_EQ(file_info.num_range_del_entries, 1);
ASSERT_EQ(file_info.smallest_range_del_key, Key(0));
ASSERT_EQ(file_info.largest_range_del_key, Key(30));
IngestExternalFileOptions ifo;
ifo.move_files = true;
ifo.snapshot_consistency = true;
ifo.allow_global_seqno = true;
ifo.write_global_seqno = true;
ifo.verify_checksums_before_ingest = false;
ASSERT_OK(db_->IngestExternalFile({file}, ifo));
for (int i = 5; i < 25; i++) {
std::string res;
ASSERT_TRUE(db_->Get(ReadOptions(), Key(i), &res).IsNotFound());
}
}
TEST_P(ExternalSSTFileBasicTest, IngestionWithRangeDeletions) {
int kNumLevels = 7;
Options options = CurrentOptions();
options.disable_auto_compactions = true;
options.num_levels = kNumLevels;
Reopen(options);
std::map<std::string, std::string> true_data;
int file_id = 1;
// prevent range deletions from being dropped due to becoming obsolete.
const Snapshot* snapshot = db_->GetSnapshot();
// range del [0, 50) in L6 file, [50, 100) in L0 file, [100, 150) in memtable
for (int i = 0; i < 3; i++) {
if (i != 0) {
db_->Flush(FlushOptions());
if (i == 1) {
MoveFilesToLevel(kNumLevels - 1);
}
}
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(50 * i), Key(50 * (i + 1))));
}
ASSERT_EQ(1, NumTableFilesAtLevel(0));
ASSERT_EQ(0, NumTableFilesAtLevel(kNumLevels - 2));
ASSERT_EQ(1, NumTableFilesAtLevel(kNumLevels - 1));
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
// overlaps with L0 file but not memtable, so flush is skipped and file is
// ingested into L0
SequenceNumber last_seqno = dbfull()->GetLatestSequenceNumber();
ASSERT_OK(GenerateAndAddExternalFile(
options, {60, 90}, {ValueType::kTypeValue, ValueType::kTypeValue},
{{65, 70}, {70, 85}}, file_id++, write_global_seqno,
verify_checksums_before_ingest, &true_data));
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), ++last_seqno);
ASSERT_EQ(2, NumTableFilesAtLevel(0));
ASSERT_EQ(0, NumTableFilesAtLevel(kNumLevels - 2));
ASSERT_EQ(1, NumTableFilesAtLevel(options.num_levels - 1));
// overlaps with L6 file but not memtable or L0 file, so flush is skipped and
// file is ingested into L5
ASSERT_OK(GenerateAndAddExternalFile(
options, {10, 40}, {ValueType::kTypeValue, ValueType::kTypeValue},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), ++last_seqno);
ASSERT_EQ(2, NumTableFilesAtLevel(0));
ASSERT_EQ(1, NumTableFilesAtLevel(kNumLevels - 2));
ASSERT_EQ(1, NumTableFilesAtLevel(options.num_levels - 1));
// overlaps with L5 file but not memtable or L0 file, so flush is skipped and
// file is ingested into L4
ASSERT_OK(GenerateAndAddExternalFile(
options, {}, {}, {{5, 15}}, file_id++, write_global_seqno,
verify_checksums_before_ingest, &true_data));
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), ++last_seqno);
ASSERT_EQ(2, NumTableFilesAtLevel(0));
ASSERT_EQ(1, NumTableFilesAtLevel(kNumLevels - 2));
ASSERT_EQ(1, NumTableFilesAtLevel(options.num_levels - 2));
ASSERT_EQ(1, NumTableFilesAtLevel(options.num_levels - 1));
// ingested file overlaps with memtable, so flush is triggered before the file
// is ingested such that the ingested data is considered newest. So L0 file
// count increases by two.
ASSERT_OK(GenerateAndAddExternalFile(
options, {100, 140}, {ValueType::kTypeValue, ValueType::kTypeValue},
file_id++, write_global_seqno, verify_checksums_before_ingest,
&true_data));
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), ++last_seqno);
ASSERT_EQ(4, NumTableFilesAtLevel(0));
ASSERT_EQ(1, NumTableFilesAtLevel(kNumLevels - 2));
ASSERT_EQ(1, NumTableFilesAtLevel(options.num_levels - 1));
// snapshot unneeded now that all range deletions are persisted
db_->ReleaseSnapshot(snapshot);
// overlaps with nothing, so places at bottom level and skips incrementing
// seqnum.
ASSERT_OK(GenerateAndAddExternalFile(
options, {151, 175}, {ValueType::kTypeValue, ValueType::kTypeValue},
{{160, 200}}, file_id++, write_global_seqno,
verify_checksums_before_ingest, &true_data));
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno);
ASSERT_EQ(4, NumTableFilesAtLevel(0));
ASSERT_EQ(1, NumTableFilesAtLevel(kNumLevels - 2));
ASSERT_EQ(2, NumTableFilesAtLevel(options.num_levels - 1));
}
TEST_F(ExternalSSTFileBasicTest, AdjacentRangeDeletionTombstones) {
Options options = CurrentOptions();
SstFileWriter sst_file_writer(EnvOptions(), options);
// file8.sst (delete 300 => 400)
std::string file8 = sst_files_dir_ + "file8.sst";
ASSERT_OK(sst_file_writer.Open(file8));
ASSERT_OK(sst_file_writer.DeleteRange(Key(300), Key(400)));
ExternalSstFileInfo file8_info;
Status s = sst_file_writer.Finish(&file8_info);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(file8_info.file_path, file8);
ASSERT_EQ(file8_info.num_entries, 0);
ASSERT_EQ(file8_info.smallest_key, "");
ASSERT_EQ(file8_info.largest_key, "");
ASSERT_EQ(file8_info.num_range_del_entries, 1);
ASSERT_EQ(file8_info.smallest_range_del_key, Key(300));
ASSERT_EQ(file8_info.largest_range_del_key, Key(400));
// file9.sst (delete 400 => 500)
std::string file9 = sst_files_dir_ + "file9.sst";
ASSERT_OK(sst_file_writer.Open(file9));
ASSERT_OK(sst_file_writer.DeleteRange(Key(400), Key(500)));
ExternalSstFileInfo file9_info;
s = sst_file_writer.Finish(&file9_info);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(file9_info.file_path, file9);
ASSERT_EQ(file9_info.num_entries, 0);
ASSERT_EQ(file9_info.smallest_key, "");
ASSERT_EQ(file9_info.largest_key, "");
ASSERT_EQ(file9_info.num_range_del_entries, 1);
ASSERT_EQ(file9_info.smallest_range_del_key, Key(400));
ASSERT_EQ(file9_info.largest_range_del_key, Key(500));
// Range deletion tombstones are exclusive on their end key, so these SSTs
// should not be considered as overlapping.
s = DeprecatedAddFile({file8, file9});
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(db_->GetLatestSequenceNumber(), 0U);
DestroyAndRecreateExternalSSTFilesDir();
}
TEST_P(ExternalSSTFileBasicTest, IngestFileWithBadBlockChecksum) {
bool change_checksum_called = false;
const auto& change_checksum = [&](void* arg) {
if (!change_checksum_called) {
char* buf = reinterpret_cast<char*>(arg);
assert(nullptr != buf);
buf[0] ^= 0x1;
change_checksum_called = true;
}
};
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->SetCallBack(
"BlockBasedTableBuilder::WriteRawBlock:TamperWithChecksum",
change_checksum);
SyncPoint::GetInstance()->EnableProcessing();
int file_id = 0;
bool write_global_seqno = std::get<0>(GetParam());
bool verify_checksums_before_ingest = std::get<1>(GetParam());
do {
Options options = CurrentOptions();
DestroyAndReopen(options);
std::map<std::string, std::string> true_data;
Status s = GenerateAndAddExternalFile(
options, {1, 2, 3, 4, 5, 6}, ValueType::kTypeValue, file_id++,
write_global_seqno, verify_checksums_before_ingest, &true_data);
if (verify_checksums_before_ingest) {
ASSERT_NOK(s);
} else {
ASSERT_OK(s);
}