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New Statistics to track Compression/Decompression (#1197)

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* Added new statistics and refactored to allow ioptions to be passed around as required to access environment and statistics pointers (and, as a convenient side effect, info_log pointer).

* Prevent incrementing compression counter when compression is turned off in options.

* Prevent incrementing compression counter when compression is turned off in options.

* Added two more supported compression types to test code in db_test.cc

* Prevent incrementing compression counter when compression is turned off in options.

* Added new StatsLevel that excludes compression timing.

* Fixed casting error in coding.h

* Fixed CompressionStatsTest for new StatsLevel.

* Removed unused variable that was breaking the Linux build
main
John Alexander 9 years ago committed by Siying Dong
parent 515b11ffab
commit 9430333f84
19 changed files with 255 additions and 114 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 2
      .gitignore
  2. 75
      db/db_test.cc
  3. 7
      db/plain_table_db_test.cc
  4. 4
      db/table_properties_collector_test.cc
  5. 3
      db/version_set.cc
  6. 22
      include/rocksdb/statistics.h
  7. 17
      table/block_based_table_builder.cc
  8. 110
      table/block_based_table_reader.cc
  9. 6
      table/block_based_table_reader.h
  10. 6
      table/cuckoo_table_builder_test.cc
  11. 2
      table/cuckoo_table_reader.cc
  12. 41
      table/format.cc
  13. 14
      table/format.h
  14. 30
      table/meta_blocks.cc
  15. 13
      table/meta_blocks.h
  16. 6
      table/plain_table_reader.cc
  17. 2
      table/table_test.cc
  18. 3
      tools/sst_dump_tool.cc
  19. 6
      util/coding.h

2
.gitignore vendored
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@ -64,3 +64,5 @@ java/javadoc
scan_build_report/
t
LOG
db_logs/

75
db/db_test.cc
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@ -1189,6 +1189,12 @@ bool MinLevelToCompress(CompressionType& type, Options& options, int wbits,
} else if (LZ4_Supported()) {
type = kLZ4Compression;
fprintf(stderr, "using lz4\n");
} else if (XPRESS_Supported()) {
type = kXpressCompression;
fprintf(stderr, "using xpress\n");
} else if (ZSTD_Supported()) {
type = kZSTDNotFinalCompression;
fprintf(stderr, "using ZSTD\n");
} else {
fprintf(stderr, "skipping test, compression disabled\n");
return false;
@ -4685,6 +4691,75 @@ TEST_F(DBTest, EncodeDecompressedBlockSizeTest) {
}
}
TEST_F(DBTest, CompressionStatsTest) {
CompressionType type;
if (Snappy_Supported()) {
type = kSnappyCompression;
fprintf(stderr, "using snappy\n");
} else if (Zlib_Supported()) {
type = kZlibCompression;
fprintf(stderr, "using zlib\n");
} else if (BZip2_Supported()) {
type = kBZip2Compression;
fprintf(stderr, "using bzip2\n");
} else if (LZ4_Supported()) {
type = kLZ4Compression;
fprintf(stderr, "using lz4\n");
} else if (XPRESS_Supported()) {
type = kXpressCompression;
fprintf(stderr, "using xpress\n");
} else if (ZSTD_Supported()) {
type = kZSTDNotFinalCompression;
fprintf(stderr, "using ZSTD\n");
} else {
fprintf(stderr, "skipping test, compression disabled\n");
return;
}
Options options = CurrentOptions();
options.compression = type;
options.statistics = rocksdb::CreateDBStatistics();
options.statistics->stats_level_ = StatsLevel::kAll;
DestroyAndReopen(options);
int kNumKeysWritten = 100000;
// Check that compressions occur and are counted when compression is turned on
Random rnd(301);
for (int i = 0; i < kNumKeysWritten; ++i) {
// compressible string
ASSERT_OK(Put(Key(i), RandomString(&rnd, 128) + std::string(128, 'a')));
}
ASSERT_GT(options.statistics->getTickerCount(NUMBER_BLOCK_COMPRESSED), 0);
for (int i = 0; i < kNumKeysWritten; ++i) {
auto r = Get(Key(i));
}
ASSERT_GT(options.statistics->getTickerCount(NUMBER_BLOCK_DECOMPRESSED), 0);
options.compression = kNoCompression;
DestroyAndReopen(options);
uint64_t currentCompressions =
options.statistics->getTickerCount(NUMBER_BLOCK_COMPRESSED);
uint64_t currentDecompressions =
options.statistics->getTickerCount(NUMBER_BLOCK_DECOMPRESSED);
// Check that compressions do not occur when turned off
for (int i = 0; i < kNumKeysWritten; ++i) {
// compressible string
ASSERT_OK(Put(Key(i), RandomString(&rnd, 128) + std::string(128, 'a')));
}
ASSERT_EQ(options.statistics->getTickerCount(NUMBER_BLOCK_COMPRESSED)
- currentCompressions, 0);
for (int i = 0; i < kNumKeysWritten; ++i) {
auto r = Get(Key(i));
}
ASSERT_EQ(options.statistics->getTickerCount(NUMBER_BLOCK_DECOMPRESSED)
- currentDecompressions, 0);
}
TEST_F(DBTest, MutexWaitStatsDisabledByDefault) {
Options options = CurrentOptions();
options.create_if_missing = true;

7
db/plain_table_db_test.cc
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@ -331,20 +331,19 @@ class TestPlainTableFactory : public PlainTableFactory {
TableProperties* props = nullptr;
auto s =
ReadTableProperties(file.get(), file_size, kPlainTableMagicNumber,
table_reader_options.ioptions.env,
table_reader_options.ioptions.info_log, &props);
table_reader_options.ioptions, &props);
EXPECT_TRUE(s.ok());
if (store_index_in_file_) {
BlockHandle bloom_block_handle;
s = FindMetaBlock(file.get(), file_size, kPlainTableMagicNumber,
table_reader_options.ioptions.env,
table_reader_options.ioptions,
BloomBlockBuilder::kBloomBlock, &bloom_block_handle);
EXPECT_TRUE(s.ok());
BlockHandle index_block_handle;
s = FindMetaBlock(file.get(), file_size, kPlainTableMagicNumber,
table_reader_options.ioptions.env,
table_reader_options.ioptions,
PlainTableIndexBuilder::kPlainTableIndexBlock,
&index_block_handle);
EXPECT_TRUE(s.ok());

4
db/table_properties_collector_test.cc
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@ -276,7 +276,7 @@ void TestCustomizedTablePropertiesCollector(
new test::StringSource(fwf->contents())));
TableProperties* props;
Status s = ReadTableProperties(fake_file_reader.get(), fwf->contents().size(),
magic_number, Env::Default(), nullptr, &props);
magic_number, ioptions, &props);
std::unique_ptr<TableProperties> props_guard(props);
ASSERT_OK(s);
@ -417,7 +417,7 @@ void TestInternalKeyPropertiesCollector(
TableProperties* props;
Status s =
ReadTableProperties(reader.get(), fwf->contents().size(), magic_number,
Env::Default(), nullptr, &props);
ioptions, &props);
ASSERT_OK(s);
std::unique_ptr<TableProperties> props_guard(props);

3
db/version_set.cc
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@ -597,8 +597,7 @@ Status Version::GetTableProperties(std::shared_ptr<const TableProperties>* tp,
new RandomAccessFileReader(std::move(file)));
s = ReadTableProperties(
file_reader.get(), file_meta->fd.GetFileSize(),
Footer::kInvalidTableMagicNumber /* table's magic number */, vset_->env_,
ioptions->info_log, &raw_table_properties);
Footer::kInvalidTableMagicNumber /* table's magic number */, *ioptions, &raw_table_properties);
if (!s.ok()) {
return s;
}

22
include/rocksdb/statistics.h
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@ -179,6 +179,11 @@ enum Tickers : uint32_t {
NUMBER_SUPERVERSION_ACQUIRES,
NUMBER_SUPERVERSION_RELEASES,
NUMBER_SUPERVERSION_CLEANUPS,
// # of compressions/decompressions executed
NUMBER_BLOCK_COMPRESSED,
NUMBER_BLOCK_DECOMPRESSED,
NUMBER_BLOCK_NOT_COMPRESSED,
MERGE_OPERATION_TOTAL_TIME,
FILTER_OPERATION_TOTAL_TIME,
@ -269,6 +274,8 @@ const std::vector<std::pair<Tickers, std::string>> TickersNameMap = {
{NUMBER_SUPERVERSION_ACQUIRES, "rocksdb.number.superversion_acquires"},
{NUMBER_SUPERVERSION_RELEASES, "rocksdb.number.superversion_releases"},
{NUMBER_SUPERVERSION_CLEANUPS, "rocksdb.number.superversion_cleanups"},
{NUMBER_BLOCK_COMPRESSED, "rocksdb.number.block.compressed"},
{NUMBER_BLOCK_DECOMPRESSED, "rocksdb.number.block.decompressed"},
{NUMBER_BLOCK_NOT_COMPRESSED, "rocksdb.number.block.not_compressed"},
{MERGE_OPERATION_TOTAL_TIME, "rocksdb.merge.operation.time.nanos"},
{FILTER_OPERATION_TOTAL_TIME, "rocksdb.filter.operation.time.nanos"},
@ -313,6 +320,14 @@ enum Histograms : uint32_t {
BYTES_PER_READ,
BYTES_PER_WRITE,
BYTES_PER_MULTIGET,
// number of bytes compressed/decompressed
// number of bytes is when uncompressed; i.e. before/after respectively
BYTES_COMPRESSED,
BYTES_DECOMPRESSED,
COMPRESSION_TIMES_NANOS,
DECOMPRESSION_TIMES_NANOS,
HISTOGRAM_ENUM_MAX, // TODO(ldemailly): enforce HistogramsNameMap match
};
@ -343,6 +358,10 @@ const std::vector<std::pair<Histograms, std::string>> HistogramsNameMap = {
{BYTES_PER_READ, "rocksdb.bytes.per.read"},
{BYTES_PER_WRITE, "rocksdb.bytes.per.write"},
{BYTES_PER_MULTIGET, "rocksdb.bytes.per.multiget"},
{BYTES_COMPRESSED, "rocksdb.bytes.compressed"},
{BYTES_DECOMPRESSED, "rocksdb.bytes.decompressed"},
{COMPRESSION_TIMES_NANOS, "rocksdb.compression.times.nanos"},
{DECOMPRESSION_TIMES_NANOS, "rocksdb.decompression.times.nanos"},
};
struct HistogramData {
@ -357,6 +376,9 @@ enum StatsLevel {
// Collect all stats except the counters requiring to get time inside the
// mutex lock.
kExceptTimeForMutex,
// Collect all stats expect time inside mutex lock AND time spent on
// compression
kExceptDetailedTimers,
// Collect all stats, including measuring duration of mutex operations.
// If getting time is expensive on the platform to run, it can
// reduce scalability to more threads, especially for writes.

17
table/block_based_table_builder.cc
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@ -651,11 +651,16 @@ void BlockBasedTableBuilder::WriteBlock(const Slice& raw_block_contents,
auto type = r->compression_type;
Slice block_contents;
bool abort_compression = false;
StopWatchNano timer(r->ioptions.env,
ShouldReportDetailedTime(r->ioptions.env, r->ioptions.statistics));
if (raw_block_contents.size() < kCompressionSizeLimit) {
Slice compression_dict;
if (is_data_block && r->compression_dict && r->compression_dict->size()) {
compression_dict = *r->compression_dict;
}
block_contents = CompressBlock(raw_block_contents, r->compression_opts,
&type, r->table_options.format_version,
compression_dict, &r->compressed_output);
@ -668,7 +673,8 @@ void BlockBasedTableBuilder::WriteBlock(const Slice& raw_block_contents,
BlockContents contents;
Status stat = UncompressBlockContentsForCompressionType(
block_contents.data(), block_contents.size(), &contents,
r->table_options.format_version, compression_dict, type);
r->table_options.format_version, compression_dict, type,
r->ioptions);
if (stat.ok()) {
bool compressed_ok = contents.data.compare(raw_block_contents) == 0;
@ -698,6 +704,15 @@ void BlockBasedTableBuilder::WriteBlock(const Slice& raw_block_contents,
type = kNoCompression;
block_contents = raw_block_contents;
}
else if (type != kNoCompression &&
ShouldReportDetailedTime(r->ioptions.env,
r->ioptions.statistics)) {
MeasureTime(r->ioptions.statistics, COMPRESSION_TIMES_NANOS,
timer.ElapsedNanos());
MeasureTime(r->ioptions.statistics, BYTES_COMPRESSED,
raw_block_contents.size());
RecordTick(r->ioptions.statistics, NUMBER_BLOCK_COMPRESSED);
}
WriteRawBlock(block_contents, type, handle);
r->compressed_output.clear();

110
table/block_based_table_reader.cc
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@ -60,14 +60,13 @@ namespace {
// dictionary.
Status ReadBlockFromFile(RandomAccessFileReader* file, const Footer& footer,
const ReadOptions& options, const BlockHandle& handle,
std::unique_ptr<Block>* result, Env* env,
std::unique_ptr<Block>* result,
const ImmutableCFOptions &ioptions,
bool do_uncompress, const Slice& compression_dict,
const PersistentCacheOptions& cache_options,
Logger* info_log) {
const PersistentCacheOptions& cache_options) {
BlockContents contents;
Status s = ReadBlockContents(file, footer, options, handle, &contents, env,
do_uncompress, compression_dict, cache_options,
info_log);
Status s = ReadBlockContents(file, footer, options, handle, &contents, ioptions,
do_uncompress, compression_dict, cache_options);
if (s.ok()) {
result->reset(new Block(std::move(contents)));
}
@ -177,19 +176,18 @@ class BinarySearchIndexReader : public IndexReader {
// On success, index_reader will be populated; otherwise it will remain
// unmodified.
static Status Create(RandomAccessFileReader* file, const Footer& footer,
const BlockHandle& index_handle, Env* env,
const BlockHandle& index_handle,
const ImmutableCFOptions &ioptions,
const Comparator* comparator, IndexReader** index_reader,
const PersistentCacheOptions& cache_options,
Statistics* statistics) {
const PersistentCacheOptions& cache_options) {
std::unique_ptr<Block> index_block;
auto s = ReadBlockFromFile(file, footer, ReadOptions(), index_handle,
&index_block, env, true /* decompress */,
Slice() /*compression dict*/, cache_options,
/*info_log*/ nullptr);
&index_block, ioptions, true /* decompress */,
Slice() /*compression dict*/, cache_options);
if (s.ok()) {
*index_reader = new BinarySearchIndexReader(
comparator, std::move(index_block), statistics);
comparator, std::move(index_block), ioptions.statistics);
}
return s;
@ -226,15 +224,15 @@ class HashIndexReader : public IndexReader {
public:
static Status Create(
const SliceTransform* hash_key_extractor, const Footer& footer,
RandomAccessFileReader* file, Env* env, const Comparator* comparator,
const BlockHandle& index_handle, InternalIterator* meta_index_iter,
IndexReader** index_reader, bool hash_index_allow_collision,
const PersistentCacheOptions& cache_options, Statistics* statistics) {
RandomAccessFileReader* file, const ImmutableCFOptions &ioptions,
const Comparator* comparator, const BlockHandle& index_handle,
InternalIterator* meta_index_iter, IndexReader** index_reader,
bool hash_index_allow_collision,
const PersistentCacheOptions& cache_options) {
std::unique_ptr<Block> index_block;
auto s = ReadBlockFromFile(file, footer, ReadOptions(), index_handle,
&index_block, env, true /* decompress */,
Slice() /*compression dict*/, cache_options,
/*info_log*/ nullptr);
&index_block, ioptions, true /* decompress */,
Slice() /*compression dict*/, cache_options);
if (!s.ok()) {
return s;
@ -245,7 +243,8 @@ class HashIndexReader : public IndexReader {
// So, Create will succeed regardless, from this point on.
auto new_index_reader =
new HashIndexReader(comparator, std::move(index_block), statistics);
new HashIndexReader(comparator, std::move(index_block),
ioptions.statistics);
*index_reader = new_index_reader;
// Get prefixes block
@ -269,14 +268,14 @@ class HashIndexReader : public IndexReader {
// Read contents for the blocks
BlockContents prefixes_contents;
s = ReadBlockContents(file, footer, ReadOptions(), prefixes_handle,
&prefixes_contents, env, true /* decompress */,
&prefixes_contents, ioptions, true /* decompress */,
Slice() /*compression dict*/, cache_options);
if (!s.ok()) {
return s;
}
BlockContents prefixes_meta_contents;
s = ReadBlockContents(file, footer, ReadOptions(), prefixes_meta_handle,
&prefixes_meta_contents, env, true /* decompress */,
&prefixes_meta_contents, ioptions, true /* decompress */,
Slice() /*compression dict*/, cache_options);
if (!s.ok()) {
// TODO: log error
@ -547,7 +546,7 @@ Status BlockBasedTable::Open(const ImmutableCFOptions& ioptions,
PersistentCacheOptions(rep->table_options.persistent_cache,
std::string(rep->persistent_cache_key_prefix,
rep->persistent_cache_key_prefix_size),
rep->ioptions.statistics);
rep->ioptions.statistics);
// Read meta index
std::unique_ptr<Block> meta;
@ -585,8 +584,7 @@ Status BlockBasedTable::Open(const ImmutableCFOptions& ioptions,
TableProperties* table_properties = nullptr;
if (s.ok()) {
s = ReadProperties(meta_iter->value(), rep->file.get(), rep->footer,
rep->ioptions.env, rep->ioptions.info_log,
&table_properties);
rep->ioptions, &table_properties);
}
if (!s.ok()) {
@ -613,7 +611,7 @@ Status BlockBasedTable::Open(const ImmutableCFOptions& ioptions,
// true.
unique_ptr<BlockContents> compression_dict_block{new BlockContents()};
s = rocksdb::ReadMetaBlock(rep->file.get(), file_size,
kBlockBasedTableMagicNumber, rep->ioptions.env,
kBlockBasedTableMagicNumber, rep->ioptions,
rocksdb::kCompressionDictBlock,
compression_dict_block.get());
if (!s.ok()) {
@ -745,9 +743,9 @@ Status BlockBasedTable::ReadMetaBlock(Rep* rep,
std::unique_ptr<Block> meta;
Status s = ReadBlockFromFile(
rep->file.get(), rep->footer, ReadOptions(),
rep->footer.metaindex_handle(), &meta, rep->ioptions.env,
rep->footer.metaindex_handle(), &meta, rep->ioptions,
true /* decompress */, Slice() /*compression dict*/,
rep->persistent_cache_options, rep->ioptions.info_log);
rep->persistent_cache_options);
if (!s.ok()) {
Log(InfoLogLevel::ERROR_LEVEL, rep->ioptions.info_log,
@ -764,13 +762,14 @@ Status BlockBasedTable::ReadMetaBlock(Rep* rep,
Status BlockBasedTable::GetDataBlockFromCache(
const Slice& block_cache_key, const Slice& compressed_block_cache_key,
Cache* block_cache, Cache* block_cache_compressed, Statistics* statistics,
const ReadOptions& read_options,
Cache* block_cache, Cache* block_cache_compressed,
const ImmutableCFOptions &ioptions, const ReadOptions& read_options,
BlockBasedTable::CachableEntry<Block>* block, uint32_t format_version,
const Slice& compression_dict) {
Status s;
Block* compressed_block = nullptr;
Cache::Handle* block_cache_compressed_handle = nullptr;
Statistics* statistics = ioptions.statistics;
// Lookup uncompressed cache first
if (block_cache != nullptr) {
@ -811,7 +810,8 @@ Status BlockBasedTable::GetDataBlockFromCache(
BlockContents contents;
s = UncompressBlockContents(compressed_block->data(),
compressed_block->size(), &contents,
format_version, compression_dict);
format_version, compression_dict,
ioptions);
// Insert uncompressed block into block cache
if (s.ok()) {
@ -840,7 +840,7 @@ Status BlockBasedTable::GetDataBlockFromCache(
Status BlockBasedTable::PutDataBlockToCache(
const Slice& block_cache_key, const Slice& compressed_block_cache_key,
Cache* block_cache, Cache* block_cache_compressed,
const ReadOptions& read_options, Statistics* statistics,
const ReadOptions& read_options, const ImmutableCFOptions &ioptions,
CachableEntry<Block>* block, Block* raw_block, uint32_t format_version,
const Slice& compression_dict) {
assert(raw_block->compression_type() == kNoCompression ||
@ -849,9 +849,10 @@ Status BlockBasedTable::PutDataBlockToCache(
Status s;
// Retrieve the uncompressed contents into a new buffer
BlockContents contents;
Statistics* statistics = ioptions.statistics;
if (raw_block->compression_type() != kNoCompression) {
s = UncompressBlockContents(raw_block->data(), raw_block->size(), &contents,
format_version, compression_dict);
format_version, compression_dict, ioptions);
}
if (!s.ok()) {
delete raw_block;
@ -913,7 +914,7 @@ FilterBlockReader* BlockBasedTable::ReadFilter(Rep* rep) {
}
BlockContents block;
if (!ReadBlockContents(rep->file.get(), rep->footer, ReadOptions(),
rep->filter_handle, &block, rep->ioptions.env,
rep->filter_handle, &block, rep->ioptions,
false /* decompress */, Slice() /*compression dict*/,
rep->persistent_cache_options)
.ok()) {
@ -1148,7 +1149,7 @@ InternalIterator* BlockBasedTable::NewDataBlockIterator(
}
s = GetDataBlockFromCache(
key, ckey, block_cache, block_cache_compressed, statistics, ro, &block,
key, ckey, block_cache, block_cache_compressed, rep->ioptions, ro, &block,
rep->table_options.format_version, compression_dict);
if (block.value == nullptr && !no_io && ro.fill_cache) {
@ -1156,15 +1157,14 @@ InternalIterator* BlockBasedTable::NewDataBlockIterator(
{
StopWatch sw(rep->ioptions.env, statistics, READ_BLOCK_GET_MICROS);
s = ReadBlockFromFile(rep->file.get(), rep->footer, ro, handle,
&raw_block, rep->ioptions.env,
&raw_block, rep->ioptions,
block_cache_compressed == nullptr,
compression_dict, rep->persistent_cache_options,
rep->ioptions.info_log);
compression_dict, rep->persistent_cache_options);
}
if (s.ok()) {
s = PutDataBlockToCache(key, ckey, block_cache, block_cache_compressed,
ro, statistics, &block, raw_block.release(),
ro, rep->ioptions, &block, raw_block.release(),
rep->table_options.format_version,
compression_dict);
}
@ -1184,9 +1184,8 @@ InternalIterator* BlockBasedTable::NewDataBlockIterator(
}
std::unique_ptr<Block> block_value;
s = ReadBlockFromFile(rep->file.get(), rep->footer, ro, handle,
&block_value, rep->ioptions.env, true /* compress */,
compression_dict, rep->persistent_cache_options,
rep->ioptions.info_log);
&block_value, rep->ioptions, true /* compress */,
compression_dict, rep->persistent_cache_options);
if (s.ok()) {
block.value = block_value.release();
}
@ -1510,8 +1509,9 @@ bool BlockBasedTable::TEST_KeyInCache(const ReadOptions& options,
handle, cache_key_storage);
Slice ckey;
s = GetDataBlockFromCache(cache_key, ckey, block_cache, nullptr, nullptr,
options, &block, rep_->table_options.format_version,
s = GetDataBlockFromCache(cache_key, ckey, block_cache, nullptr,
rep_->ioptions, options, &block,
rep_->table_options.format_version,
rep_->compression_dict_block
? rep_->compression_dict_block->data
: Slice());
@ -1544,11 +1544,8 @@ Status BlockBasedTable::CreateIndexReader(
}
auto file = rep_->file.get();
auto env = rep_->ioptions.env;
auto comparator = &rep_->internal_comparator;
const Footer& footer = rep_->footer;
Statistics* stats = rep_->ioptions.statistics;
if (index_type_on_file == BlockBasedTableOptions::kHashSearch &&
rep_->ioptions.prefix_extractor == nullptr) {
Log(InfoLogLevel::WARN_LEVEL, rep_->ioptions.info_log,
@ -1561,8 +1558,8 @@ Status BlockBasedTable::CreateIndexReader(
switch (index_type_on_file) {
case BlockBasedTableOptions::kBinarySearch: {
return BinarySearchIndexReader::Create(
file, footer, footer.index_handle(), env, comparator, index_reader,
rep_->persistent_cache_options, stats);
file, footer, footer.index_handle(), rep_->ioptions, comparator,
index_reader, rep_->persistent_cache_options);
}
case BlockBasedTableOptions::kHashSearch: {
std::unique_ptr<Block> meta_guard;
@ -1577,8 +1574,8 @@ Status BlockBasedTable::CreateIndexReader(
"Unable to read the metaindex block."
" Fall back to binary search index.");
return BinarySearchIndexReader::Create(
file, footer, footer.index_handle(), env, comparator,
index_reader, rep_->persistent_cache_options, stats);
file, footer, footer.index_handle(), rep_->ioptions, comparator,
index_reader, rep_->persistent_cache_options);
}
meta_index_iter = meta_iter_guard.get();
}
@ -1588,10 +1585,9 @@ Status BlockBasedTable::CreateIndexReader(
rep_->internal_prefix_transform.reset(
new InternalKeySliceTransform(rep_->ioptions.prefix_extractor));
return HashIndexReader::Create(
rep_->internal_prefix_transform.get(), footer, file, env, comparator,
footer.index_handle(), meta_index_iter, index_reader,
rep_->hash_index_allow_collision, rep_->persistent_cache_options,
stats);
rep_->internal_prefix_transform.get(), footer, file, rep_->ioptions,
comparator, footer.index_handle(), meta_index_iter, index_reader,
rep_->hash_index_allow_collision, rep_->persistent_cache_options);
}
default: {
std::string error_message =
@ -1711,7 +1707,7 @@ Status BlockBasedTable::DumpTable(WritableFile* out_file) {
BlockContents block;
if (ReadBlockContents(
rep_->file.get(), rep_->footer, ReadOptions(), handle, &block,
rep_->ioptions.env, false /*decompress*/,
rep_->ioptions, false /*decompress*/,
Slice() /*compression dict*/, rep_->persistent_cache_options)
.ok()) {
rep_->filter.reset(new BlockBasedFilterBlockReader(

6
table/block_based_table_reader.h
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@ -177,8 +177,8 @@ class BlockBasedTable : public TableReader {
// dictionary.
static Status GetDataBlockFromCache(
const Slice& block_cache_key, const Slice& compressed_block_cache_key,
Cache* block_cache, Cache* block_cache_compressed, Statistics* statistics,
const ReadOptions& read_options,
Cache* block_cache, Cache* block_cache_compressed,
const ImmutableCFOptions &ioptions, const ReadOptions& read_options,
BlockBasedTable::CachableEntry<Block>* block, uint32_t format_version,
const Slice& compression_dict);
@ -195,7 +195,7 @@ class BlockBasedTable : public TableReader {
static Status PutDataBlockToCache(
const Slice& block_cache_key, const Slice& compressed_block_cache_key,
Cache* block_cache, Cache* block_cache_compressed,
const ReadOptions& read_options, Statistics* statistics,
const ReadOptions& read_options, const ImmutableCFOptions &ioptions,
CachableEntry<Block>* block, Block* raw_block, uint32_t format_version,
const Slice& compression_dict);

6
table/cuckoo_table_builder_test.cc
Unescape View File

@ -49,12 +49,16 @@ class CuckooBuilderTest : public testing::Test {
uint64_t read_file_size;
ASSERT_OK(env_->GetFileSize(fname, &read_file_size));
Options options;
options.allow_mmap_reads = true;
ImmutableCFOptions ioptions(options);
// Assert Table Properties.
TableProperties* props = nullptr;
unique_ptr<RandomAccessFileReader> file_reader(
new RandomAccessFileReader(std::move(read_file)));
ASSERT_OK(ReadTableProperties(file_reader.get(), read_file_size,
kCuckooTableMagicNumber, env_, nullptr,
kCuckooTableMagicNumber, ioptions,
&props));
// Check unused bucket.
std::string unused_key = props->user_collected_properties[

2
table/cuckoo_table_reader.cc
Unescape View File

@ -45,7 +45,7 @@ CuckooTableReader::CuckooTableReader(
}
TableProperties* props = nullptr;
status_ = ReadTableProperties(file_.get(), file_size, kCuckooTableMagicNumber,
ioptions.env, ioptions.info_log, &props);
ioptions, &props);
if (!status_.ok()) {
return;
}

41
table/format.cc
Unescape View File

@ -23,6 +23,9 @@
#include "util/perf_context_imp.h"
#include "util/string_util.h"
#include "util/xxhash.h"
#include "util/statistics.h"
#include "util/stop_watch.h"
namespace rocksdb {
@ -39,6 +42,11 @@ const uint64_t kPlainTableMagicNumber = 0;
#endif
const uint32_t DefaultStackBufferSize = 5000;
bool ShouldReportDetailedTime(Env* env, Statistics* stats) {
return env != nullptr && stats != nullptr &&
stats->stats_level_ > kExceptDetailedTimers;
}
void BlockHandle::EncodeTo(std::string* dst) const {
// Sanity check that all fields have been set
assert(offset_ != ~static_cast<uint64_t>(0));
@ -297,10 +305,10 @@ Status ReadBlock(RandomAccessFileReader* file, const Footer& footer,
Status ReadBlockContents(RandomAccessFileReader* file, const Footer& footer,
const ReadOptions& read_options,
const BlockHandle& handle, BlockContents* contents,
Env* env, bool decompression_requested,
const ImmutableCFOptions &ioptions,
bool decompression_requested,
const Slice& compression_dict,
const PersistentCacheOptions& cache_options,
Logger* info_log) {
const PersistentCacheOptions& cache_options) {
Status status;
Slice slice;
size_t n = static_cast<size_t>(handle.size());
@ -318,9 +326,9 @@ Status ReadBlockContents(RandomAccessFileReader* file, const Footer& footer,
return status;
} else {
// uncompressed page is not found
if (info_log && !status.IsNotFound()) {
if (ioptions.info_log && !status.IsNotFound()) {
assert(!status.ok());
Log(InfoLogLevel::INFO_LEVEL, info_log,
Log(InfoLogLevel::INFO_LEVEL, ioptions.info_log,
"Error reading from persistent cache. %s",
status.ToString().c_str());
}
@ -341,9 +349,9 @@ Status ReadBlockContents(RandomAccessFileReader* file, const Footer& footer,
used_buf = heap_buf.get();
slice = Slice(heap_buf.get(), n);
} else {
if (info_log && !status.IsNotFound()) {
if (ioptions.info_log && !status.IsNotFound()) {
assert(!status.ok());
Log(InfoLogLevel::INFO_LEVEL, info_log,
Log(InfoLogLevel::INFO_LEVEL, ioptions.info_log,
"Error reading from persistent cache. %s", status.ToString().c_str());
}
// cache miss read from device
@ -378,7 +386,8 @@ Status ReadBlockContents(RandomAccessFileReader* file, const Footer& footer,
if (decompression_requested && compression_type != kNoCompression) {
// compressed page, uncompress, update cache
status = UncompressBlockContents(slice.data(), n, contents,
footer.version(), compression_dict);
footer.version(), compression_dict,
ioptions);
} else if (slice.data() != used_buf) {
// the slice content is not the buffer provided
*contents = BlockContents(Slice(slice.data(), n), false, compression_type);
@ -405,11 +414,13 @@ Status ReadBlockContents(RandomAccessFileReader* file, const Footer& footer,
Status UncompressBlockContentsForCompressionType(
const char* data, size_t n, BlockContents* contents,
uint32_t format_version, const Slice& compression_dict,
CompressionType compression_type) {
CompressionType compression_type, const ImmutableCFOptions &ioptions) {
std::unique_ptr<char[]> ubuf;
assert(compression_type != kNoCompression && "Invalid compression type");
StopWatchNano timer(ioptions.env,
ShouldReportDetailedTime(ioptions.env, ioptions.statistics));
int decompress_size = 0;
switch (compression_type) {
case kSnappyCompression: {
@ -501,6 +512,13 @@ Status UncompressBlockContentsForCompressionType(
return Status::Corruption("bad block type");
}
if(ShouldReportDetailedTime(ioptions.env, ioptions.statistics)){
MeasureTime(ioptions.statistics, DECOMPRESSION_TIMES_NANOS,
timer.ElapsedNanos());
MeasureTime(ioptions.statistics, BYTES_DECOMPRESSED, contents->data.size());
RecordTick(ioptions.statistics, NUMBER_BLOCK_DECOMPRESSED);
}
return Status::OK();
}
@ -513,11 +531,12 @@ Status UncompressBlockContentsForCompressionType(
// format_version is the block format as defined in include/rocksdb/table.h
Status UncompressBlockContents(const char* data, size_t n,
BlockContents* contents, uint32_t format_version,
const Slice& compression_dict) {
const Slice& compression_dict,
const ImmutableCFOptions &ioptions) {
assert(data[n] != kNoCompression);
return UncompressBlockContentsForCompressionType(
data, n, contents, format_version, compression_dict,
(CompressionType)data[n]);
(CompressionType)data[n], ioptions);
}
} // namespace rocksdb

14
table/format.h
Unescape View File

@ -24,6 +24,8 @@ class Block;
class RandomAccessFile;
struct ReadOptions;
extern bool ShouldReportDetailedTime(Env* env, Statistics* stats);
// the length of the magic number in bytes.
const int kMagicNumberLengthByte = 8;
@ -212,10 +214,9 @@ struct BlockContents {
extern Status ReadBlockContents(
RandomAccessFileReader* file, const Footer& footer,
const ReadOptions& options, const BlockHandle& handle,
BlockContents* contents, Env* env, bool do_uncompress = true,
const Slice& compression_dict = Slice(),
const PersistentCacheOptions& cache_options = PersistentCacheOptions(),
Logger* info_log = nullptr);
BlockContents* contents, const ImmutableCFOptions &ioptions,
bool do_uncompress = true, const Slice& compression_dict = Slice(),
const PersistentCacheOptions& cache_options = PersistentCacheOptions());
// The 'data' points to the raw block contents read in from file.
// This method allocates a new heap buffer and the raw block
@ -227,7 +228,8 @@ extern Status ReadBlockContents(
extern Status UncompressBlockContents(const char* data, size_t n,
BlockContents* contents,
uint32_t compress_format_version,
const Slice& compression_dict);
const Slice& compression_dict,
const ImmutableCFOptions &ioptions);
// This is an extension to UncompressBlockContents that accepts
// a specific compression type. This is used by un-wrapped blocks
@ -235,7 +237,7 @@ extern Status UncompressBlockContents(const char* data, size_t n,
extern Status UncompressBlockContentsForCompressionType(
const char* data, size_t n, BlockContents* contents,
uint32_t compress_format_version, const Slice& compression_dict,
CompressionType compression_type);
CompressionType compression_type, const ImmutableCFOptions &ioptions);
// Implementation details follow. Clients should ignore,

30
table/meta_blocks.cc
Unescape View File

@ -150,7 +150,7 @@ bool NotifyCollectTableCollectorsOnFinish(
}
Status ReadProperties(const Slice& handle_value, RandomAccessFileReader* file,
const Footer& footer, Env* env, Logger* logger,
const Footer& footer, const ImmutableCFOptions &ioptions,
TableProperties** table_properties) {
assert(table_properties);
@ -165,7 +165,7 @@ Status ReadProperties(const Slice& handle_value, RandomAccessFileReader* file,
read_options.verify_checksums = false;
Status s;
s = ReadBlockContents(file, footer, read_options, handle, &block_contents,
env, false /* decompress */);
ioptions, false /* decompress */);
if (!s.ok()) {
return s;
@ -219,7 +219,8 @@ Status ReadProperties(const Slice& handle_value, RandomAccessFileReader* file,
auto error_msg =
"Detect malformed value in properties meta-block:"
"\tkey: " + key + "\tval: " + raw_val.ToString();
Log(InfoLogLevel::ERROR_LEVEL, logger, "%s", error_msg.c_str());
Log(InfoLogLevel::ERROR_LEVEL, ioptions.info_log, "%s",
error_msg.c_str());
continue;
}
*(pos->second) = val;
@ -251,8 +252,9 @@ Status ReadProperties(const Slice& handle_value, RandomAccessFileReader* file,
}
Status ReadTableProperties(RandomAccessFileReader* file, uint64_t file_size,
uint64_t table_magic_number, Env* env,
Logger* info_log, TableProperties** properties) {
uint64_t table_magic_number,
const ImmutableCFOptions &ioptions,
TableProperties** properties) {
// -- Read metaindex block
Footer footer;
auto s = ReadFooterFromFile(file, file_size, &footer, table_magic_number);
@ -265,7 +267,7 @@ Status ReadTableProperties(RandomAccessFileReader* file, uint64_t file_size,
ReadOptions read_options;
read_options.verify_checksums = false;
s = ReadBlockContents(file, footer, read_options, metaindex_handle,
&metaindex_contents, env, false /* decompress */);
&metaindex_contents, ioptions, false /* decompress */);
if (!s.ok()) {
return s;
}
@ -282,8 +284,7 @@ Status ReadTableProperties(RandomAccessFileReader* file, uint64_t file_size,
TableProperties table_properties;
if (found_properties_block == true) {
s = ReadProperties(meta_iter->value(), file, footer, env, info_log,
properties);
s = ReadProperties(meta_iter->value(), file, footer, ioptions, properties);
} else {
s = Status::NotFound();
}
@ -305,7 +306,8 @@ Status FindMetaBlock(InternalIterator* meta_index_iter,
}
Status FindMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
uint64_t table_magic_number, Env* env,
uint64_t table_magic_number,
const ImmutableCFOptions &ioptions,
const std::string& meta_block_name,
BlockHandle* block_handle) {
Footer footer;
@ -319,7 +321,7 @@ Status FindMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
ReadOptions read_options;
read_options.verify_checksums = false;
s = ReadBlockContents(file, footer, read_options, metaindex_handle,
&metaindex_contents, env, false /* do decompression */);
&metaindex_contents, ioptions, false /* do decompression */);
if (!s.ok()) {
return s;
}
@ -332,7 +334,8 @@ Status FindMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
}
Status ReadMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
uint64_t table_magic_number, Env* env,
uint64_t table_magic_number,
const ImmutableCFOptions &ioptions,
const std::string& meta_block_name,
BlockContents* contents) {
Status status;
@ -348,7 +351,8 @@ Status ReadMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
ReadOptions read_options;
read_options.verify_checksums = false;
status = ReadBlockContents(file, footer, read_options, metaindex_handle,
&metaindex_contents, env, false /* decompress */);
&metaindex_contents, ioptions,
false /* decompress */);
if (!status.ok()) {
return status;
}
@ -368,7 +372,7 @@ Status ReadMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
// Reading metablock
return ReadBlockContents(file, footer, read_options, block_handle, contents,
env, false /* decompress */);
ioptions, false /* decompress */);
}
} // namespace rocksdb

13
table/meta_blocks.h
Unescape View File

@ -94,7 +94,7 @@ bool NotifyCollectTableCollectorsOnFinish(
// *table_properties will point to a heap-allocated TableProperties
// object, otherwise value of `table_properties` will not be modified.
Status ReadProperties(const Slice& handle_value, RandomAccessFileReader* file,
const Footer& footer, Env* env, Logger* logger,
const Footer& footer, const ImmutableCFOptions &ioptions,
TableProperties** table_properties);
// Directly read the properties from the properties block of a plain table.
@ -102,8 +102,9 @@ Status ReadProperties(const Slice& handle_value, RandomAccessFileReader* file,
// *table_properties will point to a heap-allocated TableProperties
// object, otherwise value of `table_properties` will not be modified.
Status ReadTableProperties(RandomAccessFileReader* file, uint64_t file_size,
uint64_t table_magic_number, Env* env,
Logger* info_log, TableProperties** properties);
uint64_t table_magic_number,
const ImmutableCFOptions &ioptions,
TableProperties** properties);
// Find the meta block from the meta index block.
Status FindMetaBlock(InternalIterator* meta_index_iter,
@ -112,7 +113,8 @@ Status FindMetaBlock(InternalIterator* meta_index_iter,
// Find the meta block
Status FindMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
uint64_t table_magic_number, Env* env,
uint64_t table_magic_number,
const ImmutableCFOptions &ioptions,
const std::string& meta_block_name,
BlockHandle* block_handle);
@ -120,7 +122,8 @@ Status FindMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
// from `file` and initialize `contents` with contents of this block.
// Return Status::OK in case of success.
Status ReadMetaBlock(RandomAccessFileReader* file, uint64_t file_size,
uint64_t table_magic_number, Env* env,
uint64_t table_magic_number,
const ImmutableCFOptions &ioptions,
const std::string& meta_block_name,
BlockContents* contents);

6
table/plain_table_reader.cc
Unescape View File

@ -128,7 +128,7 @@ Status PlainTableReader::Open(const ImmutableCFOptions& ioptions,
TableProperties* props = nullptr;
auto s = ReadTableProperties(file.get(), file_size, kPlainTableMagicNumber,
ioptions.env, ioptions.info_log, &props);
ioptions, &props);
if (!s.ok()) {
return s;
}
@ -293,13 +293,13 @@ Status PlainTableReader::PopulateIndex(TableProperties* props,
BlockContents bloom_block_contents;
auto s = ReadMetaBlock(file_info_.file.get(), file_size_,
kPlainTableMagicNumber, ioptions_.env,
kPlainTableMagicNumber, ioptions_,
BloomBlockBuilder::kBloomBlock, &bloom_block_contents);
bool index_in_file = s.ok();
BlockContents index_block_contents;
s = ReadMetaBlock(
file_info_.file.get(), file_size_, kPlainTableMagicNumber, ioptions_.env,
file_info_.file.get(), file_size_, kPlainTableMagicNumber, ioptions_,
PlainTableIndexBuilder::kPlainTableIndexBlock, &index_block_contents);
index_in_file &= s.ok();

2
table/table_test.cc
Unescape View File

@ -2064,7 +2064,7 @@ TEST_F(PlainTableTest, BasicPlainTableProperties) {
TableProperties* props = nullptr;
auto s = ReadTableProperties(file_reader.get(), ss->contents().size(),
kPlainTableMagicNumber, Env::Default(), nullptr,
kPlainTableMagicNumber, ioptions,
&props);
std::unique_ptr<TableProperties> props_guard(props);
ASSERT_OK(s);

3
tools/sst_dump_tool.cc
Unescape View File

@ -219,8 +219,7 @@ Status SstFileReader::ReadTableProperties(uint64_t table_magic_number,
uint64_t file_size) {
TableProperties* table_properties = nullptr;
Status s = rocksdb::ReadTableProperties(file, file_size, table_magic_number,
options_.env, options_.info_log.get(),
&table_properties);
ioptions_, &table_properties);
if (s.ok()) {
table_properties_.reset(table_properties);
} else {

6
util/coding.h
Unescape View File

@ -154,7 +154,8 @@ inline void EncodeFixed64(char* buf, uint64_t value) {
// Pull the last 8 bits and cast it to a character
inline void PutFixed32(std::string* dst, uint32_t value) {
#if __BYTE_ORDER__ == __LITTLE_ENDIAN__
dst->append(static_cast<const char*>(&value), sizeof(value));
dst->append(const_cast<const char*>(reinterpret_cast<char*>(&value)),
sizeof(value));
#else
char buf[sizeof(value)];
EncodeFixed32(buf, value);
@ -164,7 +165,8 @@ inline void PutFixed32(std::string* dst, uint32_t value) {
inline void PutFixed64(std::string* dst, uint64_t value) {
#if __BYTE_ORDER__ == __LITTLE_ENDIAN__
dst->append(static_const<const char*>(&value), sizeof(value));
dst->append(const_cast<const char*>(reinterpret_cast<char*>(&value)),
sizeof(value));
#else
char buf[sizeof(value)];
EncodeFixed64(buf, value);

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