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Support range deletion tombstones in IngestExternalFile SSTs (#3778) 

Summary:
Fixes #3391.

This change adds a `DeleteRange` method to `SstFileWriter` and adds
support for ingesting SSTs with range deletion tombstones. This is
important for applications that need to atomically ingest SSTs while
clearing out any existing keys in a given key range.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/3778

Differential Revision: D8821836

Pulled By: anand1976

fbshipit-source-id: ca7786c1947ff129afa703dab011d524c7883844
This commit is contained in:
Nathan VanBenschoten 2018-07-13 22:40:23 -07:00 committed by Facebook Github Bot
parent 91d7c03cdc
commit ef7815b803
19 changed files with 431 additions and 129 deletions
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2
USERS.md
View File

@ -26,7 +26,7 @@ Learn more about those use cases in a Tech Talk by Ankit Gupta and Naveen Somasu
Yahoo is using RocksDB as a storage engine for their biggest distributed data store Sherpa. Learn more about it here: http://yahooeng.tumblr.com/post/120730204806/sherpa-scales-new-heights
## CockroachDB
CockroachDB is an open-source geo-replicated transactional database (still in development). They are using RocksDB as their storage engine. Check out their github: https://github.com/cockroachdb/cockroach
CockroachDB is an open-source geo-replicated transactional database. They are using RocksDB as their storage engine. Check out their github: https://github.com/cockroachdb/cockroach
## DNANexus
DNANexus is using RocksDB to speed up processing of genomics data.

16
db/db_range_del_test.cc
View File

@ -23,12 +23,6 @@ class DBRangeDelTest : public DBTestBase {
}
};
const int kRangeDelSkipConfigs =
// Plain tables do not support range deletions.
DBRangeDelTest::kSkipPlainTable |
// MmapReads disables the iterator pinning that RangeDelAggregator requires.
DBRangeDelTest::kSkipMmapReads;
// PlainTableFactory and NumTableFilesAtLevel() are not supported in
// ROCKSDB_LITE
#ifndef ROCKSDB_LITE
@ -39,17 +33,17 @@ TEST_F(DBRangeDelTest, NonBlockBasedTableNotSupported) {
for (auto config : {kPlainTableAllBytesPrefix, /* kWalDirAndMmapReads */}) {
option_config_ = config;
DestroyAndReopen(CurrentOptions());
ASSERT_TRUE(
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "dr1", "dr1")
.IsNotSupported());
ASSERT_TRUE(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
"dr1", "dr1")
.IsNotSupported());
}
}
TEST_F(DBRangeDelTest, FlushOutputHasOnlyRangeTombstones) {
do {
DestroyAndReopen(CurrentOptions());
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "dr1",
"dr2"));
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
"dr1", "dr2"));
ASSERT_OK(db_->Flush(FlushOptions()));
ASSERT_EQ(1, NumTableFilesAtLevel(0));
} while (ChangeOptions(kRangeDelSkipConfigs));

7
db/db_test_util.h
View File

@ -733,6 +733,13 @@ class DBTestBase : public testing::Test {
kSkipMmapReads = 256,
};
const int kRangeDelSkipConfigs =
// Plain tables do not support range deletions.
kSkipPlainTable |
// MmapReads disables the iterator pinning that RangeDelAggregator
// requires.
kSkipMmapReads;
explicit DBTestBase(const std::string path);
~DBTestBase();

160
db/external_sst_file_basic_test.cc
View File

@ -39,7 +39,8 @@ class ExternalSSTFileBasicTest : public DBTestBase {
Status GenerateAndAddExternalFile(
const Options options, std::vector<int> keys,
const std::vector<ValueType>& value_types, int file_id,
const std::vector<ValueType>& value_types,
std::vector<std::pair<int, int>> range_deletions, int file_id,
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);
@ -49,6 +50,29 @@ class ExternalSSTFileBasicTest : public DBTestBase {
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);
@ -86,6 +110,14 @@ class ExternalSSTFileBasicTest : public DBTestBase {
return s;
}
Status GenerateAndAddExternalFile(
const Options options, std::vector<int> keys,
const std::vector<ValueType>& value_types, int file_id,
std::map<std::string, std::string>* true_data) {
return GenerateAndAddExternalFile(options, keys, value_types, {}, file_id,
true_data);
}
Status GenerateAndAddExternalFile(
const Options options, std::vector<int> keys, const ValueType value_type,
int file_id, std::map<std::string, std::string>* true_data) {
@ -126,9 +158,14 @@ TEST_F(ExternalSSTFileBasicTest, Basic) {
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
@ -189,6 +226,7 @@ TEST_F(ExternalSSTFileBasicTest, NoCopy) {
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));
@ -197,8 +235,8 @@ TEST_F(ExternalSSTFileBasicTest, NoCopy) {
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_OK(env_->FileExists(file2));
// This file have overlapping values with the existing data
s = DeprecatedAddFile({file2}, true /* move file */);
// 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));
@ -218,34 +256,33 @@ TEST_F(ExternalSSTFileBasicTest, IngestFileWithGlobalSeqnoPickedSeqno) {
ASSERT_OK(GenerateAndAddExternalFile(options, {1, 2, 3, 4, 5, 6},
ValueType::kTypeValue, file_id++,
&true_data));
// File dont overwrite any keys, No seqno needed
// 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++,
&true_data));
// File dont overwrite any keys, No seqno needed
// 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++, &true_data));
// File overwrite some keys, a seqno will be assigned
// 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++, &true_data));
// File overwrite some keys, a seqno will be assigned
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {120, 130}, ValueType::kTypeValue, file_id++, &true_data));
// File dont overwrite any keys, No seqno needed
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 130}, ValueType::kTypeValue, file_id++, &true_data));
// File overwrite some keys, a seqno will be assigned
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 3);
// Write some keys through normal write path
@ -257,17 +294,17 @@ TEST_F(ExternalSSTFileBasicTest, IngestFileWithGlobalSeqnoPickedSeqno) {
ASSERT_OK(GenerateAndAddExternalFile(
options, {60, 61, 62}, ValueType::kTypeValue, file_id++, &true_data));
// File dont overwrite any keys, No seqno needed
// 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++, &true_data));
// File overwrite some keys, a seqno will be assigned
// 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++, &true_data));
// File overwrite some keys, a seqno will be assigned
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 2);
const Snapshot* snapshot = db_->GetSnapshot();
@ -314,37 +351,54 @@ TEST_F(ExternalSSTFileBasicTest, IngestFileWithMultipleValueType) {
ASSERT_OK(GenerateAndAddExternalFile(options, {1, 2, 3, 4, 5, 6},
ValueType::kTypeValue, file_id++,
&true_data));
// File dont overwrite any keys, No seqno needed
// 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++,
&true_data));
// File dont overwrite any keys, No seqno needed
// 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++, &true_data));
// File overwrite some keys, a seqno will be assigned
// 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++,
&true_data));
// File overwrite some keys, a seqno will be assigned
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {120, 130}, ValueType::kTypeMerge, file_id++, &true_data));
// File dont overwrite any keys, No seqno needed
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 2);
ASSERT_OK(GenerateAndAddExternalFile(
options, {1, 130}, ValueType::kTypeDeletion, file_id++, &true_data));
// File overwrite some keys, a seqno will be assigned
// 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++, &true_data));
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 4);
ASSERT_OK(GenerateAndAddExternalFile(options, {}, {}, {{110, 120}},
file_id++, &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++, &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"));
@ -354,18 +408,18 @@ TEST_F(ExternalSSTFileBasicTest, IngestFileWithMultipleValueType) {
ASSERT_OK(GenerateAndAddExternalFile(
options, {60, 61, 62}, ValueType::kTypeValue, file_id++, &true_data));
// File dont overwrite any keys, No seqno needed
// 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++, &true_data));
// File overwrite some keys, a seqno will be assigned
// 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++,
&true_data));
// File overwrite some keys, a seqno will be assigned
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 2);
const Snapshot* snapshot = db_->GetSnapshot();
@ -414,7 +468,7 @@ TEST_F(ExternalSSTFileBasicTest, IngestFileWithMixedValueType) {
{ValueType::kTypeValue, ValueType::kTypeMerge, ValueType::kTypeValue,
ValueType::kTypeMerge, ValueType::kTypeValue, ValueType::kTypeMerge},
file_id++, &true_data));
// File dont overwrite any keys, No seqno needed
// File doesn't overwrite any keys, no seqno needed
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 0);
ASSERT_OK(GenerateAndAddExternalFile(
@ -422,35 +476,58 @@ TEST_F(ExternalSSTFileBasicTest, IngestFileWithMixedValueType) {
{ValueType::kTypeValue, ValueType::kTypeMerge, ValueType::kTypeValue,
ValueType::kTypeMerge},
file_id++, &true_data));
// File dont overwrite any keys, No seqno needed
// 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++, &true_data));
// File overwrite some keys, a seqno will be assigned
// 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++, &true_data));
// File overwrite some keys, a seqno will be assigned
// 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++, &true_data));
// File dont overwrite any keys, No seqno needed
// 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++, &true_data));
// File overwrite some keys, a seqno will be assigned
// 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++, &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++, &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++, &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"));
@ -462,14 +539,15 @@ TEST_F(ExternalSSTFileBasicTest, IngestFileWithMixedValueType) {
options, {60, 61, 62},
{ValueType::kTypeValue, ValueType::kTypeMerge, ValueType::kTypeValue},
file_id++, &true_data));
// File dont overwrite any keys, No seqno needed
// 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},
options, {40, 41, 42},
{ValueType::kTypeValue, ValueType::kTypeDeletion,
ValueType::kTypeDeletion},
file_id++, &true_data));
// File overwrite some keys, a seqno will be assigned
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 1);
ASSERT_OK(GenerateAndAddExternalFile(
@ -477,7 +555,7 @@ TEST_F(ExternalSSTFileBasicTest, IngestFileWithMixedValueType) {
{ValueType::kTypeDeletion, ValueType::kTypeDeletion,
ValueType::kTypeDeletion},
file_id++, &true_data));
// File overwrite some keys, a seqno will be assigned
// File overwrites some keys, a seqno will be assigned
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno + 2);
const Snapshot* snapshot = db_->GetSnapshot();
@ -589,7 +667,7 @@ TEST_F(ExternalSSTFileBasicTest, IngestionWithRangeDeletions) {
SequenceNumber last_seqno = dbfull()->GetLatestSequenceNumber();
ASSERT_OK(GenerateAndAddExternalFile(
options, {60, 90}, {ValueType::kTypeValue, ValueType::kTypeValue},
file_id++, &true_data));
{{65, 70}, {70, 85}}, file_id++, &true_data));
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), ++last_seqno);
ASSERT_EQ(2, NumTableFilesAtLevel(0));
ASSERT_EQ(0, NumTableFilesAtLevel(kNumLevels - 2));
@ -605,6 +683,16 @@ TEST_F(ExternalSSTFileBasicTest, IngestionWithRangeDeletions) {
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++,
&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.
@ -623,7 +711,7 @@ TEST_F(ExternalSSTFileBasicTest, IngestionWithRangeDeletions) {
// seqnum.
ASSERT_OK(GenerateAndAddExternalFile(
options, {151, 175}, {ValueType::kTypeValue, ValueType::kTypeValue},
file_id++, &true_data));
{{160, 200}}, file_id++, &true_data));
ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), last_seqno);
ASSERT_EQ(4, NumTableFilesAtLevel(0));
ASSERT_EQ(1, NumTableFilesAtLevel(kNumLevels - 2));

62
db/external_sst_file_ingestion_job.cc
View File

@ -78,7 +78,7 @@ Status ExternalSstFileIngestionJob::Prepare(
}
for (IngestedFileInfo& f : files_to_ingest_) {
if (f.num_entries == 0) {
if (f.num_entries == 0 && f.num_range_deletions == 0) {
return Status::InvalidArgument("File contain no entries");
}
@ -358,6 +358,7 @@ Status ExternalSstFileIngestionJob::GetIngestedFileInfo(
}
// Get number of entries in table
file_to_ingest->num_entries = props->num_entries;
file_to_ingest->num_range_deletions = props->num_range_deletions;
ParsedInternalKey key;
ReadOptions ro;
@ -369,26 +370,55 @@ Status ExternalSstFileIngestionJob::GetIngestedFileInfo(
ro.fill_cache = false;
std::unique_ptr<InternalIterator> iter(table_reader->NewIterator(
ro, sv->mutable_cf_options.prefix_extractor.get()));
std::unique_ptr<InternalIterator> range_del_iter(
table_reader->NewRangeTombstoneIterator(ro));
// Get first (smallest) key from file
// Get first (smallest) and last (largest) key from file.
bool bounds_set = false;
iter->SeekToFirst();
if (!ParseInternalKey(iter->key(), &key)) {
return Status::Corruption("external file have corrupted keys");
}
if (key.sequence != 0) {
return Status::Corruption("external file have non zero sequence number");
}
file_to_ingest->smallest_user_key = key.user_key.ToString();
if (iter->Valid()) {
if (!ParseInternalKey(iter->key(), &key)) {
return Status::Corruption("external file have corrupted keys");
}
if (key.sequence != 0) {
return Status::Corruption("external file have non zero sequence number");
}
file_to_ingest->smallest_user_key = key.user_key.ToString();
// Get last (largest) key from file
iter->SeekToLast();
if (!ParseInternalKey(iter->key(), &key)) {
return Status::Corruption("external file have corrupted keys");
iter->SeekToLast();
if (!ParseInternalKey(iter->key(), &key)) {
return Status::Corruption("external file have corrupted keys");
}
if (key.sequence != 0) {
return Status::Corruption("external file have non zero sequence number");
}
file_to_ingest->largest_user_key = key.user_key.ToString();
bounds_set = true;
}
if (key.sequence != 0) {
return Status::Corruption("external file have non zero sequence number");
// We may need to adjust these key bounds, depending on whether any range
// deletion tombstones extend past them.
const Comparator* ucmp = cfd_->internal_comparator().user_comparator();
if (range_del_iter != nullptr) {
for (range_del_iter->SeekToFirst(); range_del_iter->Valid();
range_del_iter->Next()) {
if (!ParseInternalKey(range_del_iter->key(), &key)) {
return Status::Corruption("external file have corrupted keys");
}
RangeTombstone tombstone(key, range_del_iter->value());
if (!bounds_set || ucmp->Compare(tombstone.start_key_,
file_to_ingest->smallest_user_key) < 0) {
file_to_ingest->smallest_user_key = tombstone.start_key_.ToString();
}
if (!bounds_set || ucmp->Compare(tombstone.end_key_,
file_to_ingest->largest_user_key) > 0) {
file_to_ingest->largest_user_key = tombstone.end_key_.ToString();
}
bounds_set = true;
}
}
file_to_ingest->largest_user_key = key.user_key.ToString();
file_to_ingest->cf_id = static_cast<uint32_t>(props->column_family_id);

2
db/external_sst_file_ingestion_job.h
View File

@ -36,6 +36,8 @@ struct IngestedFileInfo {
uint64_t file_size;
// total number of keys in external file
uint64_t num_entries;
// total number of range deletions in external file
uint64_t num_range_deletions;
// Id of column family this file shoule be ingested into
uint32_t cf_id;
// TableProperties read from external file

120
db/external_sst_file_test.cc
View File

@ -222,6 +222,9 @@ TEST_F(ExternalSSTFileTest, Basic) {
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();
@ -290,6 +293,58 @@ TEST_F(ExternalSSTFileTest, Basic) {
ASSERT_EQ(file5_info.smallest_key, Key(400));
ASSERT_EQ(file5_info.largest_key, Key(499));
// file6.sst (delete 400 => 500)
std::string file6 = sst_files_dir_ + "file6.sst";
ASSERT_OK(sst_file_writer.Open(file6));
sst_file_writer.DeleteRange(Key(400), Key(500));
ExternalSstFileInfo file6_info;
s = sst_file_writer.Finish(&file6_info);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(file6_info.file_path, file6);
ASSERT_EQ(file6_info.num_entries, 0);
ASSERT_EQ(file6_info.smallest_key, "");
ASSERT_EQ(file6_info.largest_key, "");
ASSERT_EQ(file6_info.num_range_del_entries, 1);
ASSERT_EQ(file6_info.smallest_range_del_key, Key(400));
ASSERT_EQ(file6_info.largest_range_del_key, Key(500));
// file7.sst (delete 500 => 570, put 520 => 599 divisible by 2)
std::string file7 = sst_files_dir_ + "file7.sst";
ASSERT_OK(sst_file_writer.Open(file7));
sst_file_writer.DeleteRange(Key(500), Key(550));
for (int k = 520; k < 560; k += 2) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
sst_file_writer.DeleteRange(Key(525), Key(575));
for (int k = 560; k < 600; k += 2) {
ASSERT_OK(sst_file_writer.Put(Key(k), Key(k) + "_val"));
}
ExternalSstFileInfo file7_info;
s = sst_file_writer.Finish(&file7_info);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(file7_info.file_path, file7);
ASSERT_EQ(file7_info.num_entries, 40);
ASSERT_EQ(file7_info.smallest_key, Key(520));
ASSERT_EQ(file7_info.largest_key, Key(598));
ASSERT_EQ(file7_info.num_range_del_entries, 2);
ASSERT_EQ(file7_info.smallest_range_del_key, Key(500));
ASSERT_EQ(file7_info.largest_range_del_key, Key(575));
// file8.sst (delete 600 => 700)
std::string file8 = sst_files_dir_ + "file8.sst";
ASSERT_OK(sst_file_writer.Open(file8));
sst_file_writer.DeleteRange(Key(600), Key(700));
ExternalSstFileInfo file8_info;
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(600));
ASSERT_EQ(file8_info.largest_range_del_key, Key(700));
// Cannot create an empty sst file
std::string file_empty = sst_files_dir_ + "file_empty.sst";
ExternalSstFileInfo file_empty_info;
@ -336,6 +391,16 @@ TEST_F(ExternalSSTFileTest, Basic) {
// Key range of file5 (400 => 499) dont overlap with any keys in DB
ASSERT_OK(DeprecatedAddFile({file5}));
// This file has overlapping values with the existing data
s = DeprecatedAddFile({file6});
ASSERT_FALSE(s.ok()) << s.ToString();
// Key range of file7 (500 => 598) dont overlap with any keys in DB
ASSERT_OK(DeprecatedAddFile({file7}));
// Key range of file7 (600 => 700) dont overlap with any keys in DB
ASSERT_OK(DeprecatedAddFile({file8}));
// Make sure values are correct before and after flush/compaction
for (int i = 0; i < 2; i++) {
for (int k = 0; k < 200; k++) {
@ -349,6 +414,13 @@ TEST_F(ExternalSSTFileTest, Basic) {
std::string value = Key(k) + "_val";
ASSERT_EQ(Get(Key(k)), value);
}
for (int k = 500; k < 600; k++) {
std::string value = Key(k) + "_val";
if (k < 520 || k % 2 == 1) {
value = "NOT_FOUND";
}
ASSERT_EQ(Get(Key(k)), value);
}
ASSERT_OK(Flush());
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
}
@ -377,7 +449,8 @@ TEST_F(ExternalSSTFileTest, Basic) {
ASSERT_EQ(Get(Key(k)), value);
}
DestroyAndRecreateExternalSSTFilesDir();
} while (ChangeOptions(kSkipPlainTable | kSkipFIFOCompaction));
} while (ChangeOptions(kSkipPlainTable | kSkipFIFOCompaction |
kRangeDelSkipConfigs));
}
class SstFileWriterCollector : public TablePropertiesCollector {
public:
@ -518,17 +591,57 @@ TEST_F(ExternalSSTFileTest, AddList) {
ASSERT_EQ(file5_info.smallest_key, Key(200));
ASSERT_EQ(file5_info.largest_key, Key(299));
// file6.sst (delete 0 => 100)
std::string file6 = sst_files_dir_ + "file6.sst";
ASSERT_OK(sst_file_writer.Open(file6));
ASSERT_OK(sst_file_writer.DeleteRange(Key(0), Key(75)));
ASSERT_OK(sst_file_writer.DeleteRange(Key(25), Key(100)));
ExternalSstFileInfo file6_info;
s = sst_file_writer.Finish(&file6_info);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(file6_info.file_path, file6);
ASSERT_EQ(file6_info.num_entries, 0);
ASSERT_EQ(file6_info.smallest_key, "");
ASSERT_EQ(file6_info.largest_key, "");
ASSERT_EQ(file6_info.num_range_del_entries, 2);
ASSERT_EQ(file6_info.smallest_range_del_key, Key(0));
ASSERT_EQ(file6_info.largest_range_del_key, Key(100));
// file7.sst (delete 100 => 200)
std::string file7 = sst_files_dir_ + "file7.sst";
ASSERT_OK(sst_file_writer.Open(file7));
ASSERT_OK(sst_file_writer.DeleteRange(Key(100), Key(200)));
ExternalSstFileInfo file7_info;
s = sst_file_writer.Finish(&file7_info);
ASSERT_TRUE(s.ok()) << s.ToString();
ASSERT_EQ(file7_info.file_path, file7);
ASSERT_EQ(file7_info.num_entries, 0);
ASSERT_EQ(file7_info.smallest_key, "");
ASSERT_EQ(file7_info.largest_key, "");
ASSERT_EQ(file7_info.num_range_del_entries, 1);
ASSERT_EQ(file7_info.smallest_range_del_key, Key(100));
ASSERT_EQ(file7_info.largest_range_del_key, Key(200));
// list 1 has internal key range conflict
std::vector<std::string> file_list0({file1, file2});
std::vector<std::string> file_list1({file3, file2, file1});
std::vector<std::string> file_list2({file5});
std::vector<std::string> file_list3({file3, file4});
std::vector<std::string> file_list4({file5, file7});
std::vector<std::string> file_list5({file6, file7});
DestroyAndReopen(options);
// This list of files have key ranges are overlapping with each other
// These lists of files have key ranges that overlap with each other
s = DeprecatedAddFile(file_list1);
ASSERT_FALSE(s.ok()) << s.ToString();
// Both of the following overlap on the end key of a range deletion
// tombstone. This is a limitation because these tombstones have exclusive
// end keys that should not count as overlapping with other keys.
s = DeprecatedAddFile(file_list4);
ASSERT_FALSE(s.ok()) << s.ToString();
s = DeprecatedAddFile(file_list5);
ASSERT_FALSE(s.ok()) << s.ToString();
// Add files using file path list
s = DeprecatedAddFile(file_list0);
@ -619,7 +732,8 @@ TEST_F(ExternalSSTFileTest, AddList) {
ASSERT_EQ(Get(Key(k)), value);
}
DestroyAndRecreateExternalSSTFilesDir();
} while (ChangeOptions(kSkipPlainTable | kSkipFIFOCompaction));
} while (ChangeOptions(kSkipPlainTable | kSkipFIFOCompaction |
kRangeDelSkipConfigs));
}
TEST_F(ExternalSSTFileTest, AddListAtomicity) {

27
db/range_del_aggregator.cc
View File

@ -435,10 +435,6 @@ Status RangeDelAggregator::AddTombstones(
input->SeekToFirst();
bool first_iter = true;
while (input->Valid()) {
// The tombstone map holds slices into the iterator's memory. This assert
// ensures pinning the iterator also pins the keys/values.
assert(input->IsKeyPinned() && input->IsValuePinned());
if (first_iter) {
if (rep_ == nullptr) {
InitRep({upper_bound_});
@ -448,10 +444,29 @@ Status RangeDelAggregator::AddTombstones(
first_iter = false;
}
ParsedInternalKey parsed_key;
if (!ParseInternalKey(input->key(), &parsed_key)) {
bool parsed;
if (input->IsKeyPinned()) {
parsed = ParseInternalKey(input->key(), &parsed_key);
} else {
// The tombstone map holds slices into the iterator's memory. Make a
// copy of the key if it is not pinned.
rep_->pinned_slices_.emplace_back(input->key().data(),
input->key().size());
parsed = ParseInternalKey(rep_->pinned_slices_.back(), &parsed_key);
}
if (!parsed) {
return Status::Corruption("Unable to parse range tombstone InternalKey");
}
RangeTombstone tombstone(parsed_key, input->value());
RangeTombstone tombstone;
if (input->IsValuePinned()) {
tombstone = RangeTombstone(parsed_key, input->value());
} else {
// The tombstone map holds slices into the iterator's memory. Make a
// copy of the value if it is not pinned.
rep_->pinned_slices_.emplace_back(input->value().data(),
input->value().size());
tombstone = RangeTombstone(parsed_key, rep_->pinned_slices_.back());
}
// Truncate the tombstone to the range [smallest, largest].
if (smallest != nullptr) {
if (icmp_.user_comparator()->Compare(

4
db/range_del_aggregator.h
View File

@ -5,6 +5,7 @@
#pragma once
#include <list>
#include <map>
#include <set>
#include <string>
@ -105,7 +106,7 @@ class RangeDelAggregator {
// covered by a range tombstone residing in the same snapshot stripe.
// @param mode If collapse_deletions_ is true, this dictates how we will find
// the deletion whose interval contains this key. Otherwise, its
// value must be kFullScan indicating linear scan from beginning..
// value must be kFullScan indicating linear scan from beginning.
bool ShouldDelete(
const ParsedInternalKey& parsed,
RangeDelPositioningMode mode = RangeDelPositioningMode::kFullScan) {
@ -173,6 +174,7 @@ class RangeDelAggregator {
struct Rep {
StripeMap stripe_map_;
PinnedIteratorsManager pinned_iters_mgr_;
std::list<std::string> pinned_slices_;
std::set<uint64_t> added_files_;
};
// Initializes rep_ lazily. This aggregator object is constructed for every

25
include/rocksdb/sst_file_writer.h
View File

@ -32,9 +32,12 @@ struct ExternalSstFileInfo {
: file_path(""),
smallest_key(""),
largest_key(""),
smallest_range_del_key(""),
largest_range_del_key(""),
sequence_number(0),
file_size(0),
num_entries(0),
num_range_del_entries(0),
version(0) {}
ExternalSstFileInfo(const std::string& _file_path,
@ -45,17 +48,24 @@ struct ExternalSstFileInfo {
: file_path(_file_path),
smallest_key(_smallest_key),
largest_key(_largest_key),
smallest_range_del_key(""),
largest_range_del_key(""),
sequence_number(_sequence_number),
file_size(_file_size),
num_entries(_num_entries),
num_range_del_entries(0),
version(_version) {}
std::string file_path; // external sst file path
std::string smallest_key; // smallest user key in file
std::string largest_key; // largest user key in file
SequenceNumber sequence_number; // sequence number of all keys in file
uint64_t file_size; // file size in bytes
uint64_t num_entries; // number of entries in file
std::string file_path; // external sst file path
std::string smallest_key; // smallest user key in file
std::string largest_key; // largest user key in file
std::string
smallest_range_del_key; // smallest range deletion user key in file
std::string largest_range_del_key; // largest range deletion user key in file
SequenceNumber sequence_number; // sequence number of all keys in file
uint64_t file_size; // file size in bytes
uint64_t num_entries; // number of entries in file
uint64_t num_range_del_entries; // number of range deletion entries in file
int32_t version; // file version
};
@ -106,6 +116,9 @@ class SstFileWriter {
// REQUIRES: key is after any previously added key according to comparator.
Status Delete(const Slice& user_key);
// Add a range deletion tombstone to currently opened file
Status DeleteRange(const Slice& begin_key, const Slice& end_key);
// Finalize writing to sst file and close file.
//
// An optional ExternalSstFileInfo pointer can be passed to the function

7
java/rocksjni/backupenginejni.cc
View File

@ -68,10 +68,11 @@ void Java_org_rocksdb_BackupEngine_createNewBackupWithMetadata(
auto* backup_engine = reinterpret_cast<rocksdb::BackupEngine*>(jbe_handle);
jboolean has_exception = JNI_FALSE;
std::string app_metadata = rocksdb::JniUtil::copyStdString(
env, japp_metadata, &has_exception);
std::string app_metadata =
rocksdb::JniUtil::copyStdString(env, japp_metadata, &has_exception);
if (has_exception == JNI_TRUE) {
rocksdb::RocksDBExceptionJni::ThrowNew(env, "Could not copy jstring to std::string");
rocksdb::RocksDBExceptionJni::ThrowNew(
env, "Could not copy jstring to std::string");
return;
}

19
java/rocksjni/portal.h
View File

@ -2370,14 +2370,16 @@ class BackupInfoJni : public JavaClass {
* exception occurs
*/
static jobject construct0(JNIEnv* env, uint32_t backup_id, int64_t timestamp,
uint64_t size, uint32_t number_files, const std::string& app_metadata) {
uint64_t size, uint32_t number_files,
const std::string& app_metadata) {
jclass jclazz = getJClass(env);
if(jclazz == nullptr) {
// exception occurred accessing class
return nullptr;
}
static jmethodID mid = env->GetMethodID(jclazz, "<init>", "(IJJILjava/lang/String;)V");
static jmethodID mid =
env->GetMethodID(jclazz, "<init>", "(IJJILjava/lang/String;)V");
if(mid == nullptr) {
// exception occurred accessing method
return nullptr;
@ -2392,8 +2394,8 @@ class BackupInfoJni : public JavaClass {
}
}
jobject jbackup_info =
env->NewObject(jclazz, mid, backup_id, timestamp, size, number_files, japp_metadata);
jobject jbackup_info = env->NewObject(jclazz, mid, backup_id, timestamp,
size, number_files, japp_metadata);
if(env->ExceptionCheck()) {
env->DeleteLocalRef(japp_metadata);
return nullptr;
@ -2448,12 +2450,9 @@ class BackupInfoListJni {
for (auto it = backup_infos.begin(); it != end; ++it) {
auto backup_info = *it;
jobject obj = rocksdb::BackupInfoJni::construct0(env,
backup_info.backup_id,
backup_info.timestamp,
backup_info.size,
backup_info.number_files,
backup_info.app_metadata);
jobject obj = rocksdb::BackupInfoJni::construct0(
env, backup_info.backup_id, backup_info.timestamp, backup_info.size,
backup_info.number_files, backup_info.app_metadata);
if(env->ExceptionCheck()) {
// exception occurred constructing object
if(obj != nullptr) {

5
java/src/main/java/org/rocksdb/BackupEngine.java
View File

@ -104,9 +104,8 @@ public class BackupEngine extends RocksObject implements AutoCloseable {
*
* @throws RocksDBException thrown if a new backup could not be created
*/
public void createNewBackupWithMetadata(
final RocksDB db, final String metadata, final boolean flushBeforeBackup)
throws RocksDBException {
public void createNewBackupWithMetadata(final RocksDB db, final String metadata,
final boolean flushBeforeBackup) throws RocksDBException {
assert (isOwningHandle());
createNewBackupWithMetadata(nativeHandle_, db.nativeHandle_, metadata, flushBeforeBackup);
}

4
java/src/main/java/org/rocksdb/BackupInfo.java
View File

@ -19,8 +19,8 @@ public class BackupInfo {
* @param size size of backup
* @param numberFiles number of files related to this backup.
*/
BackupInfo(final int backupId, final long timestamp, final long size,
final int numberFiles, final String app_metadata) {
BackupInfo(final int backupId, final long timestamp, final long size, final int numberFiles,
final String app_metadata) {
backupId_ = backupId;
timestamp_ = timestamp;
size_ = size;

15
java/src/test/java/org/rocksdb/BackupEngineTest.java
View File

@ -207,20 +207,17 @@ public class BackupEngineTest {
}
@Test
public void backupDbWithMetadata()
throws RocksDBException {
public void backupDbWithMetadata() throws RocksDBException {
// Open empty database.
try(final Options opt = new Options().setCreateIfMissing(true);
final RocksDB db = RocksDB.open(opt,
dbFolder.getRoot().getAbsolutePath())) {
try (final Options opt = new Options().setCreateIfMissing(true);
final RocksDB db = RocksDB.open(opt, dbFolder.getRoot().getAbsolutePath())) {
// Fill database with some test values
prepareDatabase(db);
// Create two backups
try(final BackupableDBOptions bopt = new BackupableDBOptions(
backupFolder.getRoot().getAbsolutePath());
final BackupEngine be = BackupEngine.open(opt.getEnv(), bopt)) {
try (final BackupableDBOptions bopt =
new BackupableDBOptions(backupFolder.getRoot().getAbsolutePath());
final BackupEngine be = BackupEngine.open(opt.getEnv(), bopt)) {
final String metadata = String.valueOf(ThreadLocalRandom.current().nextInt());
be.createNewBackupWithMetadata(db, metadata, true);
final List<BackupInfo> backupInfoList = verifyNumberOfValidBackups(be, 1);

5
table/block.cc
View File

@ -285,13 +285,14 @@ bool BlockIter::ParseNextKey() {
if (global_seqno_ != kDisableGlobalSequenceNumber) {
// If we are reading a file with a global sequence number we should
// expect that all encoded sequence numbers are zeros and any value
// type is kTypeValue, kTypeMerge or kTypeDeletion
// type is kTypeValue, kTypeMerge, kTypeDeletion, or kTypeRangeDeletion.
assert(GetInternalKeySeqno(key_.GetInternalKey()) == 0);
ValueType value_type = ExtractValueType(key_.GetInternalKey());
assert(value_type == ValueType::kTypeValue ||
value_type == ValueType::kTypeMerge ||
value_type == ValueType::kTypeDeletion);
value_type == ValueType::kTypeDeletion ||
value_type == ValueType::kTypeRangeDeletion);
if (key_pinned_) {
// TODO(tec): Investigate updating the seqno in the loaded block

28
table/block_based_table_reader.cc
View File

@ -903,6 +903,20 @@ Status BlockBasedTable::Open(const ImmutableCFOptions& ioptions,
}
}
// Read the table properties, if provided.
if (rep->table_properties) {
rep->whole_key_filtering &=
IsFeatureSupported(*(rep->table_properties),
BlockBasedTablePropertyNames::kWholeKeyFiltering,
rep->ioptions.info_log);
rep->prefix_filtering &= IsFeatureSupported(
*(rep->table_properties),
BlockBasedTablePropertyNames::kPrefixFiltering, rep->ioptions.info_log);
rep->global_seqno = GetGlobalSequenceNumber(*(rep->table_properties),
rep->ioptions.info_log);
}
// Read the range del meta block
bool found_range_del_block;
s = SeekToRangeDelBlock(meta_iter.get(), &found_range_del_block,
@ -928,20 +942,6 @@ Status BlockBasedTable::Open(const ImmutableCFOptions& ioptions,
}
}
// Determine whether whole key filtering is supported.
if (rep->table_properties) {
rep->whole_key_filtering &=
IsFeatureSupported(*(rep->table_properties),
BlockBasedTablePropertyNames::kWholeKeyFiltering,
rep->ioptions.info_log);
rep->prefix_filtering &= IsFeatureSupported(
*(rep->table_properties),
BlockBasedTablePropertyNames::kPrefixFiltering, rep->ioptions.info_log);
rep->global_seqno = GetGlobalSequenceNumber(*(rep->table_properties),
rep->ioptions.info_log);
}
bool need_upper_bound_check =
PrefixExtractorChanged(rep->table_properties.get(), prefix_extractor);

48
table/sst_file_writer.cc
View File

@ -101,6 +101,42 @@ struct SstFileWriter::Rep {
return Status::OK();
}
Status DeleteRange(const Slice& begin_key, const Slice& end_key) {
if (!builder) {
return Status::InvalidArgument("File is not opened");
}
RangeTombstone tombstone(begin_key, end_key, 0 /* Sequence Number */);
if (file_info.num_range_del_entries == 0) {
file_info.smallest_range_del_key.assign(tombstone.start_key_.data(),
tombstone.start_key_.size());
file_info.largest_range_del_key.assign(tombstone.end_key_.data(),
tombstone.end_key_.size());
} else {
if (internal_comparator.user_comparator()->Compare(
tombstone.start_key_, file_info.smallest_range_del_key) < 0) {
file_info.smallest_range_del_key.assign(tombstone.start_key_.data(),
tombstone.start_key_.size());
}
if (internal_comparator.user_comparator()->Compare(
tombstone.end_key_, file_info.largest_range_del_key) > 0) {
file_info.largest_range_del_key.assign(tombstone.end_key_.data(),
tombstone.end_key_.size());
}
}
auto ikey_and_end_key = tombstone.Serialize();
builder->Add(ikey_and_end_key.first.Encode(), ikey_and_end_key.second);
// update file info
file_info.num_range_del_entries++;
file_info.file_size = builder->FileSize();
InvalidatePageCache(false /* closing */);
return Status::OK();
}
void InvalidatePageCache(bool closing) {
if (invalidate_page_cache == false) {
// Fadvise disabled
@ -209,10 +245,8 @@ Status SstFileWriter::Open(const std::string& file_path) {
r->builder.reset(r->ioptions.table_factory->NewTableBuilder(
table_builder_options, cf_id, r->file_writer.get()));
r->file_info = ExternalSstFileInfo();
r->file_info.file_path = file_path;
r->file_info.file_size = 0;
r->file_info.num_entries = 0;
r->file_info.sequence_number = 0;
r->file_info.version = 2;
return s;
}
@ -233,12 +267,18 @@ Status SstFileWriter::Delete(const Slice& user_key) {
return rep_->Add(user_key, Slice(), ValueType::kTypeDeletion);
}
Status SstFileWriter::DeleteRange(const Slice& begin_key,
const Slice& end_key) {
return rep_->DeleteRange(begin_key, end_key);
}
Status SstFileWriter::Finish(ExternalSstFileInfo* file_info) {
Rep* r = rep_.get();
if (!r->builder) {
return Status::InvalidArgument("File is not opened");
}
if (r->file_info.num_entries == 0) {
if (r->file_info.num_entries == 0 &&
r->file_info.num_range_del_entries == 0) {
return Status::InvalidArgument("Cannot create sst file with no entries");
}

4
utilities/backupable/backupable_db.cc
View File

@ -975,8 +975,8 @@ Status BackupEngineImpl::DeleteBackup(BackupID backup_id) {
for (auto& itr : backuped_file_infos_) {
if (itr.second->refs == 0) {
Status s = backup_env_->DeleteFile(GetAbsolutePath(itr.first));
ROCKS_LOG_INFO(options_.info_log, "Deleting %s -- %s", itr.first.c_str(),
s.ToString().c_str());
ROCKS_LOG_INFO(options_.info_log, "Deleting %s -- %s",
itr.first.c_str(), s.ToString().c_str());
to_delete.push_back(itr.first);
}
}