fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Levi Tamasi 22655a398b Introduce a blob file reader class (#7461) ... Summary: The patch adds a class called `BlobFileReader` that can be used to retrieve blobs using the information available in blob references (e.g. blob file number, offset, and size). This will come in handy when implementing blob support for `Get`, `MultiGet`, and iterators, and also for compaction/garbage collection. When a `BlobFileReader` object is created (using the factory method `Create`), it first checks whether the specified file is potentially valid by comparing the file size against the combined size of the blob file header and footer (files smaller than the threshold are considered malformed). Then, it opens the file, and reads and verifies the header and footer. The verification involves magic number/CRC checks as well as checking for unexpected header/footer fields, e.g. incorrect column family ID or TTL blob files. Blobs can be retrieved using `GetBlob`. `GetBlob` validates the offset and compression type passed by the caller (because of the presence of the header and footer, the specified offset cannot be too close to the start/end of the file; also, the compression type has to match the one in the blob file header), and retrieves and potentially verifies and uncompresses the blob. In particular, when `ReadOptions::verify_checksums` is set, `BlobFileReader` reads the blob record header as well (as opposed to just the blob itself) and verifies the key/value size, the key itself, as well as the CRC of the blob record header and the key/value pair. In addition, the patch exposes the compression type from `BlobIndex` (both using an accessor and via `DebugString`), and adds a blob file read latency histogram to `InternalStats` that can be used with `BlobFileReader`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7461 Test Plan: `make check` Reviewed By: riversand963 Differential Revision: D23999219 Pulled By: ltamasi fbshipit-source-id: deb6b1160d251258b308d5156e2ec063c3e12e5e		4 years ago
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blob	Introduce a blob file reader class (#7461)	4 years ago
compaction	Make sure assert(false) handles failures too (#7483)	4 years ago
db_impl	Disallow trivial move if BottommostLevelCompaction is kForce* (#7368)	4 years ago
arena_wrapped_db_iter.cc	dedup ReadOptions in iterator hierarchy (#7210)	4 years ago
arena_wrapped_db_iter.h	dedup ReadOptions in iterator hierarchy (#7210)	4 years ago
builder.cc	Enforce status check for corruption_test (#7453)	4 years ago
builder.h	Integrate blob file writing with the flush logic (#7345)	4 years ago
c.cc	RocksJava - Add errorIfLogFileExists parameter to RocksDB.openReadOnly (#7046)	4 years ago
c_test.c	Fix MSVC-related build issues (#7439)	4 years ago
column_family.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
column_family.h	Store FSRandomAccessPtr object in RandomAccessFileReader (#7192)	4 years ago
column_family_test.cc	Add status check enforcement for column_family_test.cc (#7484)	4 years ago
compact_files_test.cc	Replace reinterpret_cast with static_cast_with_check (#7067)	4 years ago
compacted_db_impl.cc	Periodically flush info log out of application buffer (#7488)	4 years ago
compacted_db_impl.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
comparator_db_test.cc	More Makefile Cleanup (#7097)	4 years ago
convenience.cc	sst_dump to reduce number of file reads (#6836)	5 years ago
corruption_test.cc	Enforce status check for corruption_test (#7453)	4 years ago
cuckoo_table_db_test.cc	Replace reinterpret_cast with static_cast_with_check (#7067)	4 years ago
db_basic_test.cc	Add Stats for MultiGet (#7366)	4 years ago
db_block_cache_test.cc	Bring the Configurable options together (#5753)	4 years ago
db_bloom_filter_test.cc	Bring the Configurable options together (#5753)	4 years ago
db_compaction_filter_test.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
db_compaction_test.cc	Disallow trivial move if BottommostLevelCompaction is kForce* (#7368)	4 years ago
db_dynamic_level_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_encryption_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_filesnapshot.cc	Fix checkpoint file deletion race with avoid_unnecessary_blocking_io (#7369)	4 years ago
db_flush_test.cc	Integrate blob file writing with the flush logic (#7345)	4 years ago
db_info_dumper.cc	Add some simulator cache and block tracer tests to ASSERT_STATUS_CHECKED (#7305)	4 years ago
db_info_dumper.h	Add a DB Session ID (#6959)	4 years ago
db_inplace_update_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_io_failure_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_iter.cc	Make sure assert(false) handles failures too (#7483)	4 years ago
db_iter.h	Make db_basic_test pass assert status checked (#7452)	4 years ago
db_iter_stress_test.cc	Test CircleCI with CLANG-10 (#7025)	4 years ago
db_iter_test.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
db_iterator_test.cc	Bring the Configurable options together (#5753)	4 years ago
db_log_iter_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_logical_block_size_cache_test.cc	Get block size only in direct IO mode (#6522)	5 years ago
db_memtable_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_merge_operand_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_merge_operator_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_options_test.cc	Add few unit test cases in ASSERT_STATUS_CHECKED build (#7427)	4 years ago
db_properties_test.cc	Fix db_properties_test for ASSERT_STATUS_CHECKED (#7490)	4 years ago
db_range_del_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_sst_test.cc	add Status check assertions for repair_test (#7455)	4 years ago
db_statistics_test.cc	Add a new stats level to exclude tickers (#7329)	4 years ago
db_table_properties_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_tailing_iter_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_test.cc	Reduce the number of iterations in DBTest.FileCreationRandomFailure (#7481)	4 years ago
db_test2.cc	Bring the Configurable options together (#5753)	4 years ago
db_test_util.cc	Enable ASSERT_STATUS_CHECKED for db_universal_compaction_test (#7460)	4 years ago
db_test_util.h	add Status check assertions for repair_test (#7455)	4 years ago
db_universal_compaction_test.cc	Enable ASSERT_STATUS_CHECKED for db_universal_compaction_test (#7460)	4 years ago
db_wal_test.cc	Integrate blob file writing with recovery (#7388)	4 years ago
db_with_timestamp_basic_test.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
db_with_timestamp_compaction_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
db_write_test.cc	Fix StallWrite crash with mixed of slowdown/no_slowdown writes (#7508)	4 years ago
dbformat.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
dbformat.h	Introduce options.check_flush_compaction_key_order (#7467)	4 years ago
dbformat_test.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
deletefile_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
error_handler.cc	Status check enforcement for timestamp_basic_test (#7454)	4 years ago
error_handler.h	Map retryable IO error during Flush without WAL to soft error and no switch memtable during resume (#7310)	4 years ago
error_handler_fs_test.cc	Status check enforcement for error_handler_fs_test (#7342)	4 years ago
event_helpers.cc	Status check enforcement for error_handler_fs_test (#7342)	4 years ago
event_helpers.h	Pass SST file checksum information through OnTableFileCreated (#7108)	4 years ago
experimental.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
external_sst_file_basic_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
external_sst_file_ingestion_job.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
external_sst_file_ingestion_job.h	Store FSSequentialFilePtr object in SequenceFileReader (#7190)	4 years ago
external_sst_file_test.cc	Disable fsync in some ExternalSSTFileTest tests (#7303)	4 years ago
fault_injection_test.cc	More Makefile Cleanup (#7097)	4 years ago
file_indexer.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
file_indexer.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
file_indexer_test.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
filename_test.cc	Add more tests to ASSERT_STATUS_CHECKED (#7211)	4 years ago
flush_job.cc	Add flush_job_test to the list of ASSERT_STATUS_CHECKED tests (#7445)	4 years ago
flush_job.h	Store FSWritableFilePtr object in WritableFileWriter (#7193)	4 years ago
flush_job_test.cc	Introduce options.check_flush_compaction_key_order (#7467)	4 years ago
flush_scheduler.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
flush_scheduler.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
forward_iterator.cc	Add status check enforcement for column_family_test.cc (#7484)	4 years ago
forward_iterator.h	Properly report IO errors when IndexType::kBinarySearchWithFirstKey is used (#6621)	5 years ago
forward_iterator_bench.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
import_column_family_job.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
import_column_family_job.h	Store FSSequentialFilePtr object in SequenceFileReader (#7190)	4 years ago
import_column_family_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
internal_stats.cc	Introduce a blob file reader class (#7461)	4 years ago
internal_stats.h	Introduce a blob file reader class (#7461)	4 years ago
job_context.h	Expose the set of live blob files from Version/VersionSet (#6785)	5 years ago
listener_test.cc	Bring the Configurable options together (#5753)	4 years ago
log_format.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
log_reader.cc	Real fix for race in backup custom checksum checking (#7309)	4 years ago
log_reader.h	Real fix for race in backup custom checksum checking (#7309)	4 years ago
log_test.cc	Revert "Update googletest from 1.8.1 to 1.10.0 (#6808)" (#6923)	4 years ago
log_writer.cc	Fail recovery when MANIFEST record checksum mismatch (#6996)	4 years ago
log_writer.h	Pass IOStatus to write path and set retryable IO Error as hard error in BG jobs (#6487)	5 years ago
logs_with_prep_tracker.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
logs_with_prep_tracker.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
lookup_key.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
malloc_stats.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
malloc_stats.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
manual_compaction_test.cc	Skip high levels with no key falling in the range in CompactRange (#6482)	5 years ago
memtable.cc	Introduce options.check_flush_compaction_key_order (#7467)	4 years ago
memtable.h	Provide users with option to opt-in to get corrupt data in logs/messages (#7420)	4 years ago
memtable_list.cc	Integrate blob file writing with the flush logic (#7345)	4 years ago
memtable_list.h	Bug Fix for memtables not trimmed down. (#7296)	4 years ago
memtable_list_test.cc	Add few unit test cases in ASSERT_STATUS_CHECKED build (#7427)	4 years ago
merge_context.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
merge_helper.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
merge_helper.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
merge_helper_test.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
merge_operator.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
merge_test.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
obsolete_files_test.cc	Whole DBTest to skip fsync (#7274)	4 years ago
options_file_test.cc	Add more tests to ASSERT_STATUS_CHECKED (#7367)	4 years ago
output_validator.cc	Introduce options.check_flush_compaction_key_order (#7467)	4 years ago
output_validator.h	Introduce options.check_flush_compaction_key_order (#7467)	4 years ago
perf_context_test.cc	Fix MSVC-related build issues (#7439)	4 years ago
periodic_work_scheduler.cc	Periodically flush info log out of application buffer (#7488)	4 years ago
periodic_work_scheduler.h	Periodically flush info log out of application buffer (#7488)	4 years ago
periodic_work_scheduler_test.cc	Periodically flush info log out of application buffer (#7488)	4 years ago
pinned_iterators_manager.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
plain_table_db_test.cc	More Makefile Cleanup (#7097)	4 years ago
pre_release_callback.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
prefix_test.cc	Fix prefix_test for status check (#7495)	4 years ago
range_del_aggregator.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
range_del_aggregator.h	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
range_del_aggregator_bench.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
range_del_aggregator_test.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
range_tombstone_fragmenter.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
range_tombstone_fragmenter.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
range_tombstone_fragmenter_test.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
read_callback.h	Get() with timestamp should respect snapshot (#7227)	4 years ago
repair.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
repair_test.cc	add Status check assertions for repair_test (#7455)	4 years ago
snapshot_checker.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
snapshot_impl.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
snapshot_impl.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
table_cache.cc	Fix db_properties_test for ASSERT_STATUS_CHECKED (#7490)	4 years ago
table_cache.h	Store FSRandomAccessPtr object in RandomAccessFileReader (#7192)	4 years ago
table_properties_collector.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
table_properties_collector.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
table_properties_collector_test.cc	Bring the Configurable options together (#5753)	4 years ago
transaction_log_impl.cc	Store FSSequentialFilePtr object in SequenceFileReader (#7190)	4 years ago
transaction_log_impl.h	Store FileSystemPtr object that contains FileSystem ptr (#7180)	4 years ago
trim_history_scheduler.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
trim_history_scheduler.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
version_builder.cc	Enforce status check for corruption_test (#7453)	4 years ago
version_builder.h	make L0 index/filter pinned memory usage predictable (#6911)	4 years ago
version_builder_test.cc	Add version_builder_test to the list of ASSERT_STATUS_CHECKED tests (#7444)	4 years ago
version_edit.cc	Integrate blob file writing with the flush logic (#7345)	4 years ago
version_edit.h	Integrate blob file writing with the flush logic (#7345)	4 years ago
version_edit_handler.cc	Store FSWritableFilePtr object in WritableFileWriter (#7193)	4 years ago
version_edit_handler.h	Store FSWritableFilePtr object in WritableFileWriter (#7193)	4 years ago
version_edit_test.cc	Track WAL in MANIFEST: update WalMetadata for WAL syncing (#7414)	4 years ago
version_set.cc	Add Stats for MultiGet (#7366)	4 years ago
version_set.h	Fix TSAN build and re-enable the tests (#7386)	4 years ago
version_set_test.cc	Store FileSystemPtr object that contains FileSystem ptr (#7180)	4 years ago
wal_edit.cc	Track WAL in MANIFEST: add method to check WAL consistency (#7236)	4 years ago
wal_edit.h	Track WAL in MANIFEST: add method to check WAL consistency (#7236)	4 years ago
wal_edit_test.cc	Track WAL in MANIFEST: add method to check WAL consistency (#7236)	4 years ago
wal_manager.cc	add Status check assertions for repair_test (#7455)	4 years ago
wal_manager.h	Store FileSystemPtr object that contains FileSystem ptr (#7180)	4 years ago
wal_manager_test.cc	Store FileSystemPtr object that contains FileSystem ptr (#7180)	4 years ago
write_batch.cc	Add trace_analyzer_test to ASSERT_STATUS_CHECKED list (#7480)	4 years ago
write_batch_base.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
write_batch_internal.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
write_batch_test.cc	Change ParseInternalKey() to return Status instead of bool (#7457)	4 years ago
write_callback.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
write_callback_test.cc	Divide WriteCallbackTest.WriteWithCallbackTest (#7037)	4 years ago
write_controller.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
write_controller.h	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
write_controller_test.cc	Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)	5 years ago
write_thread.cc	Fix StallWrite crash with mixed of slowdown/no_slowdown writes (#7508)	4 years ago
write_thread.h	Enforce status check for corruption_test (#7453)	4 years ago