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Levi Tamasi ecc084d301 Support the on-demand loading of blobs during iteration (#13069) 
Summary:
Pull Request resolved: https://github.com/facebook/rocksdb/pull/13069

Currently, when using range scans with BlobDB, the iterator logic eagerly loads values from blob files when landing on a new entry. This can be wasteful in use cases where the values associated with some keys in the range are not used by the application. The patch introduces a new read option `allow_unprepared_value`; when specified, this option results in the above eager loading getting bypassed. Values needed by the application can be then loaded on an on-demand basis by calling the new iterator API `PrepareValue`. Note that currently, only regular single-CF iterators are supported; multi-CF iterators and transactions will be extended in later PRs.

Reviewed By: jowlyzhang

Differential Revision: D64360723

fbshipit-source-id: ee55502fa15dcb307a984922b9afc9d9da15d6e1
2024-10-16 12:34:57 -07:00
..
blob Support the on-demand loading of blobs during iteration (#13069) 2024-10-16 12:34:57 -07:00
compaction Preserve Options File (#13074) 2024-10-16 09:22:51 -07:00
db_impl Preserve Options File (#13074) 2024-10-16 09:22:51 -07:00
wide Fix the output of ldb dump_wal for PutEntity records (#12677) 2024-05-20 17:04:14 -07:00
arena_wrapped_db_iter.cc Steps toward deprecating implicit prefix seek, related fixes (#13026) 2024-09-20 15:54:19 -07:00
arena_wrapped_db_iter.h Support the on-demand loading of blobs during iteration (#13069) 2024-10-16 12:34:57 -07:00
attribute_group_iterator_impl.cc MultiCfIterator - AttributeGroupIter Impl & CoalescingIter Optimization (#12534) 2024-04-16 08:45:38 -07:00
attribute_group_iterator_impl.h Templatize MultiCfIteratorImpl to avoid std::function's overhead (#13052) 2024-10-02 19:18:15 -07:00
builder.cc Remove stale entries from L0 files when UDT is not persisted (#13035) 2024-10-14 12:28:35 -07:00
builder.h Add CompactForTieringCollector to support automatically trigger compaction for tiering use case (#12760) 2024-06-18 10:51:29 -07:00
c.cc Steps toward making IDENTITY file obsolete (#13019) 2024-09-19 14:05:21 -07:00
c_test.c Steps toward making IDENTITY file obsolete (#13019) 2024-09-19 14:05:21 -07:00
coalescing_iterator.cc MultiCfIterator - AttributeGroupIter Impl & CoalescingIter Optimization (#12534) 2024-04-16 08:45:38 -07:00
coalescing_iterator.h Templatize MultiCfIteratorImpl to avoid std::function's overhead (#13052) 2024-10-02 19:18:15 -07:00
column_family.cc Introduce minimum compaction debt requirement for parallel compaction (#13054) 2024-10-04 15:01:54 -07:00
column_family.h Fix needs_flush assertion in file ingestion (#13045) 2024-10-02 17:19:18 -07:00
column_family_test.cc Remove stale entries from L0 files when UDT is not persisted (#13035) 2024-10-14 12:28:35 -07:00
compact_files_test.cc Prevent data block compression with BlockBasedTableOptions::block_align (#12592) 2024-04-26 20:05:30 -07:00
comparator_db_test.cc Run internal cpp modernizer on RocksDB repo (#12398) 2024-03-04 10:08:32 -08:00
convenience.cc Inject more errors to more files in stress test (#12713) 2024-06-19 08:42:00 -07:00
convenience_impl.h
corruption_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
cuckoo_table_db_test.cc Run internal cpp modernizer on RocksDB repo (#12398) 2024-03-04 10:08:32 -08:00
db_basic_test.cc Steps toward making IDENTITY file obsolete (#13019) 2024-09-19 14:05:21 -07:00
db_block_cache_test.cc Make simple BlockBasedTableOptions mutable (#10021) 2024-10-14 17:49:26 -07:00
db_bloom_filter_test.cc Steps toward deprecating implicit prefix seek, related fixes (#13026) 2024-09-20 15:54:19 -07:00
db_clip_test.cc
db_compaction_filter_test.cc Replace ScopedArenaIterator with ScopedArenaPtr<InternalIterator> (#12470) 2024-03-22 13:40:42 -07:00
db_compaction_test.cc Compact one file at a time for FIFO temperature change compactions (#13018) 2024-09-19 15:50:41 -07:00
db_dynamic_level_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
db_encryption_test.cc
db_filesnapshot.cc Avoid unnecessary work in internal calls to GetSortedWalFiles (#12831) 2024-07-01 23:29:02 -07:00
db_flush_test.cc Refactor SyncWAL and SyncClosedLogs for code sharing (#12707) 2024-05-30 14:53:13 -07:00
db_follower_test.cc Move file tracking in VersionEditHandlerPointInTime to VersionBuilder (#12928) 2024-08-12 21:09:37 -07:00
db_info_dumper.cc Don't log an error when an auxiliary dir is missing (#12326) 2024-02-05 10:26:41 -08:00
db_info_dumper.h
db_inplace_update_test.cc
db_io_failure_test.cc Fix a couple of missing cases of retry on corruption (#13007) 2024-09-13 13:56:49 -07:00
db_iter.cc Support the on-demand loading of blobs during iteration (#13069) 2024-10-16 12:34:57 -07:00
db_iter.h Support the on-demand loading of blobs during iteration (#13069) 2024-10-16 12:34:57 -07:00
db_iter_stress_test.cc Automated modernization (#12210) 2024-01-05 11:53:57 -08:00
db_iter_test.cc Add initial support for TimedPut API (#12419) 2024-03-14 15:44:55 -07:00
db_iterator_test.cc Add Iterator property "rocksdb.iterator.is-value-pinned" (#12659) 2024-05-15 19:11:52 -07:00
db_kv_checksum_test.cc Fix MultiGet dropping memtable kv checksum corruption (#12842) 2024-08-08 13:34:11 -07:00
db_log_iter_test.cc Disable flaky part of TransactionLogIteratorCheckWhenArchive (#12423) 2024-03-12 12:54:53 -07:00
db_logical_block_size_cache_test.cc
db_memtable_test.cc Add an option to verify memtable key order during reads (#12889) 2024-08-19 13:53:25 -07:00
db_merge_operand_test.cc Add ContinueCallback to GetMergeOperands() (#12438) 2024-03-15 12:25:49 -07:00
db_merge_operator_test.cc
db_options_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
db_properties_test.cc GetAggregatedIntProperty accumulates property once per block cache (#12755) 2024-06-18 10:46:55 -07:00
db_range_del_test.cc Fail DeleteRange() early when row_cache is configured (#12710) 2024-05-29 15:03:15 -07:00
db_rate_limiter_test.cc Fix db_rate_limiter_test for win (#12816) 2024-07-01 16:14:19 -07:00
db_readonly_with_timestamp_test.cc
db_secondary_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
db_sst_test.cc Fix orphaned files in SstFileManager (#13015) 2024-09-18 13:27:44 -07:00
db_statistics_test.cc Fix double counting of BYTES_WRITTEN ticker (#12111) 2023-12-08 17:12:11 -08:00
db_table_properties_test.cc Run internal cpp modernizer on RocksDB repo (#12398) 2024-03-04 10:08:32 -08:00
db_tailing_iter_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
db_test.cc Improve DBTest.DynamicLevelCompressionPerLevel (#13044) 2024-10-09 12:51:19 -07:00
db_test2.cc Steps toward deprecating implicit prefix seek, related fixes (#13026) 2024-09-20 15:54:19 -07:00
db_test_util.cc Option to decouple index and filter partitions (#12939) 2024-08-16 15:34:31 -07:00
db_test_util.h Options for file temperature for more files (#12957) 2024-08-23 19:49:25 -07:00
db_universal_compaction_test.cc Option to decouple index and filter partitions (#12939) 2024-08-16 15:34:31 -07:00
db_wal_test.cc Fix a bug with auto recovery on WAL write error (#12995) 2024-09-17 14:10:33 -07:00
db_with_timestamp_basic_test.cc Steps toward deprecating implicit prefix seek, related fixes (#13026) 2024-09-20 15:54:19 -07:00
db_with_timestamp_compaction_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
db_with_timestamp_test_util.cc
db_with_timestamp_test_util.h
db_write_buffer_manager_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
db_write_test.cc Disallow memtable flush and sst ingest while WAL is locked (#12652) 2024-05-21 10:17:34 -07:00
dbformat.cc Add some per key optimization for UDT in memtable only feature (#13031) 2024-10-03 17:57:50 -07:00
dbformat.h Remove stale entries from L0 files when UDT is not persisted (#13035) 2024-10-14 12:28:35 -07:00
dbformat_test.cc Refactor IndexBuilder::AddIndexEntry (#12867) 2024-07-22 14:27:31 -07:00
deletefile_test.cc Add an option to wait for purge in WaitForCompact (#12520) 2024-04-17 17:33:27 -07:00
error_handler.cc Fix a bug with auto recovery on WAL write error (#12995) 2024-09-17 14:10:33 -07:00
error_handler.h Fix a bug with auto recovery on WAL write error (#12995) 2024-09-17 14:10:33 -07:00
error_handler_fs_test.cc Remove the return value of SetBGError() (#12792) 2024-06-26 18:17:05 -07:00
event_helpers.cc Record largest seqno in table properties and verify in file ingestion (#12951) 2024-08-21 16:24:18 -07:00
event_helpers.h
experimental.cc Fix and generalize framework for filtering range queries, etc. (#13005) 2024-09-18 15:26:37 -07:00
external_sst_file_basic_test.cc Ingest files in separate batches if they overlap (#13064) 2024-10-15 17:22:01 -07:00
external_sst_file_ingestion_job.cc Ingest files in separate batches if they overlap (#13064) 2024-10-15 17:22:01 -07:00
external_sst_file_ingestion_job.h Ingest files in separate batches if they overlap (#13064) 2024-10-15 17:22:01 -07:00
external_sst_file_test.cc Use same logic to assign level for non-overlapping files in universal compaction (#13059) 2024-10-11 11:18:45 -07:00
fault_injection_test.cc FaultInjectionTestFS follow-up and clean-up (#12861) 2024-07-15 10:28:34 -07:00
file_indexer.cc
file_indexer.h
file_indexer_test.cc
filename_test.cc
flush_job.cc Remove stale entries from L0 files when UDT is not persisted (#13035) 2024-10-14 12:28:35 -07:00
flush_job.h Add CompactForTieringCollector to support automatically trigger compaction for tiering use case (#12760) 2024-06-18 10:51:29 -07:00
flush_job_test.cc Remove stale entries from L0 files when UDT is not persisted (#13035) 2024-10-14 12:28:35 -07:00
flush_scheduler.cc
flush_scheduler.h
forward_iterator.cc Fix a bug for surfacing write unix time (#13057) 2024-10-08 11:31:51 -07:00
forward_iterator.h Support returning write unix time in iterator property (#12428) 2024-03-15 15:37:37 -07:00
forward_iterator_bench.cc
history_trimming_iterator.h
import_column_family_job.cc Fix a corruption bug in CreateColumnFamilyWithImport() (#12602) 2024-05-06 11:01:38 -07:00
import_column_family_job.h
import_column_family_test.cc Introduce minimum compaction debt requirement for parallel compaction (#13054) 2024-10-04 15:01:54 -07:00
internal_stats.cc GetAggregatedIntProperty accumulates property once per block cache (#12755) 2024-06-18 10:46:55 -07:00
internal_stats.h GetAggregatedIntProperty accumulates property once per block cache (#12755) 2024-06-18 10:46:55 -07:00
job_context.h Preserve Options File (#13074) 2024-10-16 09:22:51 -07:00
kv_checksum.h
listener_test.cc Add some checks at property block creation side (#12898) 2024-07-31 13:28:17 -07:00
log_format.h
log_reader.cc Fix recycled WAL detection when wal_compression is enabled (#12643) 2024-05-22 15:34:37 -07:00
log_reader.h Enable recycle_log_file_num option for point in time recovery (#12403) 2024-03-21 12:29:35 -07:00
log_test.cc Fix recycled WAL detection when wal_compression is enabled (#12643) 2024-05-22 15:34:37 -07:00
log_writer.cc Handle injected write error after successful WAL write in crash test + misc (#12838) 2024-07-29 13:51:49 -07:00
log_writer.h Ensure Close() before LinkFile() for WALs in Checkpoint (#12734) 2024-06-12 11:48:45 -07:00
logs_with_prep_tracker.cc
logs_with_prep_tracker.h
lookup_key.h
malloc_stats.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
malloc_stats.h
manual_compaction_test.cc internal_repo_rocksdb (4372117296613874540) (#12117) 2023-12-04 11:17:32 -08:00
memtable.cc Remove stale entries from L0 files when UDT is not persisted (#13035) 2024-10-14 12:28:35 -07:00
memtable.h Remove stale entries from L0 files when UDT is not persisted (#13035) 2024-10-14 12:28:35 -07:00
memtable_list.cc Fix needs_flush assertion in file ingestion (#13045) 2024-10-02 17:19:18 -07:00
memtable_list.h Fix needs_flush assertion in file ingestion (#13045) 2024-10-02 17:19:18 -07:00
memtable_list_test.cc Fix MultiGet dropping memtable kv checksum corruption (#12842) 2024-08-08 13:34:11 -07:00
merge_context.h Add ContinueCallback to GetMergeOperands() (#12438) 2024-03-15 12:25:49 -07:00
merge_helper.cc Add initial support for TimedPut API (#12419) 2024-03-14 15:44:55 -07:00
merge_helper.h Eliminate some code duplication in MergeHelper (#12121) 2023-12-05 14:07:42 -08:00
merge_helper_test.cc
merge_operator.cc
merge_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
multi_cf_iterator_impl.h Small improvement to MultiCFIteratorImpl (#13075) 2024-10-15 17:32:07 -07:00
multi_cf_iterator_test.cc Fix IteratorsConsistentView tests (#12582) 2024-04-25 14:06:46 -07:00
obsolete_files_test.cc Remove the force mode for EnableFileDeletions API (#12337) 2024-02-13 18:36:25 -08:00
options_file_test.cc internal_repo_rocksdb (4372117296613874540) (#12117) 2023-12-04 11:17:32 -08:00
output_validator.cc Removed check_flush_compaction_key_order (#12311) 2024-01-31 16:30:26 -08:00
output_validator.h Removed check_flush_compaction_key_order (#12311) 2024-01-31 16:30:26 -08:00
perf_context_test.cc Add write_memtable_time to perf level kEnableWait (#12394) 2024-02-29 15:08:26 -08:00
periodic_task_scheduler.cc Remove extra semi colon from instagram/ranking/mezql/shots/parser/fast/Token.cpp 2024-03-04 06:32:50 -08:00
periodic_task_scheduler.h
periodic_task_scheduler_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
pinned_iterators_manager.h Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
plain_table_db_test.cc Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
post_memtable_callback.h
pre_release_callback.h
prefix_test.cc internal_repo_rocksdb (4372117296613874540) (#12117) 2023-12-04 11:17:32 -08:00
range_del_aggregator.cc Replace ScopedArenaIterator with ScopedArenaPtr<InternalIterator> (#12470) 2024-03-22 13:40:42 -07:00
range_del_aggregator.h Replace ScopedArenaIterator with ScopedArenaPtr<InternalIterator> (#12470) 2024-03-22 13:40:42 -07:00
range_del_aggregator_bench.cc
range_del_aggregator_test.cc
range_tombstone_fragmenter.cc Add support for range deletion when user timestamps are not persisted (#12254) 2024-01-29 11:37:34 -08:00
range_tombstone_fragmenter.h Remove stale entries from L0 files when UDT is not persisted (#13035) 2024-10-14 12:28:35 -07:00
range_tombstone_fragmenter_test.cc
read_callback.h
repair.cc Steps toward deprecating implicit prefix seek, related fixes (#13026) 2024-09-20 15:54:19 -07:00
repair_test.cc internal_repo_rocksdb (4372117296613874540) (#12117) 2023-12-04 11:17:32 -08:00
seqno_time_test.cc Add initial support for TimedPut API (#12419) 2024-03-14 15:44:55 -07:00
seqno_to_time_mapping.cc Add CompactForTieringCollector to support automatically trigger compaction for tiering use case (#12760) 2024-06-18 10:51:29 -07:00
seqno_to_time_mapping.h Add CompactForTieringCollector to support automatically trigger compaction for tiering use case (#12760) 2024-06-18 10:51:29 -07:00
snapshot_checker.h Remove 'virtual' when implied by 'override' (#12319) 2024-01-31 13:14:42 -08:00
snapshot_impl.cc
snapshot_impl.h
table_cache.cc Fix possible double-free on TruncatedRangeDelIterator (#12805) 2024-06-24 11:51:16 -07:00
table_cache.h Fix possible double-free on TruncatedRangeDelIterator (#12805) 2024-06-24 11:51:16 -07:00
table_cache_sync_and_async.h Fix kBlockCacheTier read when merge-chain base value is in a blob file (#12462) 2024-03-21 12:38:53 -07:00
table_properties_collector.cc
table_properties_collector.h Add CompactForTieringCollector to support automatically trigger compaction for tiering use case (#12760) 2024-06-18 10:51:29 -07:00
table_properties_collector_test.cc Add CompactForTieringCollector to support automatically trigger compaction for tiering use case (#12760) 2024-06-18 10:51:29 -07:00
transaction_log_impl.cc Rename, deprecate LogFile and VectorLogPtr (#12695) 2024-05-28 09:24:49 -07:00
transaction_log_impl.h Rename, deprecate LogFile and VectorLogPtr (#12695) 2024-05-28 09:24:49 -07:00
trim_history_scheduler.cc
trim_history_scheduler.h
version_builder.cc Add some documentation for version edit handlers (#12948) 2024-08-21 10:09:10 -07:00
version_builder.h Best efforts recovery recover seqno prefix (#12938) 2024-08-16 17:18:54 -07:00
version_builder_test.cc Fix blob files not reclaimed after deleting all SSTs (#12235) 2024-01-16 11:15:23 -08:00
version_edit.cc Support ingesting SST files generated by a live DB (#12750) 2024-07-19 16:14:54 -07:00
version_edit.h Remove unnecessary, confusing 'extern' (#12300) 2024-01-29 10:38:08 -08:00
version_edit_handler.cc Best efforts recovery recover seqno prefix (#12938) 2024-08-16 17:18:54 -07:00
version_edit_handler.h Add some documentation for version edit handlers (#12948) 2024-08-21 10:09:10 -07:00
version_edit_test.cc internal_repo_rocksdb (4372117296613874540) (#12117) 2023-12-04 11:17:32 -08:00
version_set.cc Fix a bug for surfacing write unix time (#13057) 2024-10-08 11:31:51 -07:00
version_set.h Deshim coro in fbcode/internal_repo_rocksdb 2024-09-14 09:48:21 -07:00
version_set_sync_and_async.h
version_set_test.cc Change the semantics of blob_garbage_collection_force_threshold to provide better control over space amp (#13022) 2024-09-19 15:47:13 -07:00
version_util.h Group SST write in flush, compaction and db open with new stats (#11910) 2023-12-29 15:29:23 -08:00
wal_edit.cc
wal_edit.h
wal_edit_test.cc
wal_manager.cc Avoid unnecessary work in internal calls to GetSortedWalFiles (#12831) 2024-07-01 23:29:02 -07:00
wal_manager.h Avoid unnecessary work in internal calls to GetSortedWalFiles (#12831) 2024-07-01 23:29:02 -07:00
wal_manager_test.cc Group SST write in flush, compaction and db open with new stats (#11910) 2023-12-29 15:29:23 -08:00
write_batch.cc Print unknown writebatch tag (#13062) 2024-10-10 15:34:35 -07:00
write_batch_base.cc
write_batch_internal.h Add initial support for TimedPut API (#12419) 2024-03-14 15:44:55 -07:00
write_batch_test.cc Steps toward deprecating implicit prefix seek, related fixes (#13026) 2024-09-20 15:54:19 -07:00
write_callback.h
write_callback_test.cc Add public API WriteWithCallback to support custom callbacks (#12603) 2024-05-31 19:30:19 -07:00
write_controller.cc
write_controller.h
write_controller_test.cc
write_stall_stats.cc
write_stall_stats.h Remove unnecessary, confusing 'extern' (#12300) 2024-01-29 10:38:08 -08:00
write_thread.cc Add public API WriteWithCallback to support custom callbacks (#12603) 2024-05-31 19:30:19 -07:00
write_thread.h Add public API WriteWithCallback to support custom callbacks (#12603) 2024-05-31 19:30:19 -07:00