mirror of
https://github.com/facebook/rocksdb.git
synced 2024-12-03 05:54:17 +00:00
9f2363f4c4
Summary: Add user-defined timestamp support for range deletion. The new API is `DeleteRange(opt, cf, begin_key, end_key, ts)`. Most of the change is to update the comparator to compare without timestamp. Other than that, major changes are - internal range tombstone data structures (`FragmentedRangeTombstoneList`, `RangeTombstone`, etc.) to store timestamps. - Garbage collection of range tombstones and range tombstone covered keys during compaction. - Get()/MultiGet() to return the timestamp of a range tombstone when needed. - Get/Iterator with range tombstones bounded by readoptions.timestamp. - timestamp crash test now issues DeleteRange by default. Pull Request resolved: https://github.com/facebook/rocksdb/pull/10661 Test Plan: - Added unit test: `make check` - Stress test: `python3 tools/db_crashtest.py --enable_ts whitebox --readpercent=57 --prefixpercent=4 --writepercent=25 -delpercent=5 --iterpercent=5 --delrangepercent=4` - Ran `db_bench` to measure regression when timestamp is not enabled. The tests are for write (with some range deletion) and iterate with DB fitting in memory: `./db_bench--benchmarks=fillrandom,seekrandom --writes_per_range_tombstone=200 --max_write_buffer_number=100 --min_write_buffer_number_to_merge=100 --writes=500000 --reads=500000 --seek_nexts=10 --disable_auto_compactions -disable_wal=true --max_num_range_tombstones=1000`. Did not see consistent regression in no timestamp case. | micros/op | fillrandom | seekrandom | | --- | --- | --- | |main| 2.58 |10.96| |PR 10661| 2.68 |10.63| Reviewed By: riversand963 Differential Revision: D39441192 Pulled By: cbi42 fbshipit-source-id: f05aca3c41605caf110daf0ff405919f300ddec2 |
||
|---|---|---|
| .. | ||
| binary_search_index_reader.cc | ||
| binary_search_index_reader.h | ||
| block.cc | ||
| block.h | ||
| block_based_table_builder.cc | ||
| block_based_table_builder.h | ||
| block_based_table_factory.cc | ||
| block_based_table_factory.h | ||
| block_based_table_iterator.cc | ||
| block_based_table_iterator.h | ||
| block_based_table_reader.cc | ||
| block_based_table_reader.h | ||
| block_based_table_reader_impl.h | ||
| block_based_table_reader_sync_and_async.h | ||
| block_based_table_reader_test.cc | ||
| block_builder.cc | ||
| block_builder.h | ||
| block_like_traits.h | ||
| block_prefetcher.cc | ||
| block_prefetcher.h | ||
| block_prefix_index.cc | ||
| block_prefix_index.h | ||
| block_test.cc | ||
| block_type.h | ||
| cachable_entry.h | ||
| data_block_footer.cc | ||
| data_block_footer.h | ||
| data_block_hash_index.cc | ||
| data_block_hash_index.h | ||
| data_block_hash_index_test.cc | ||
| filter_block.h | ||
| filter_block_reader_common.cc | ||
| filter_block_reader_common.h | ||
| filter_policy.cc | ||
| filter_policy_internal.h | ||
| flush_block_policy.cc | ||
| flush_block_policy.h | ||
| full_filter_block.cc | ||
| full_filter_block.h | ||
| full_filter_block_test.cc | ||
| hash_index_reader.cc | ||
| hash_index_reader.h | ||
| index_builder.cc | ||
| index_builder.h | ||
| index_reader_common.cc | ||
| index_reader_common.h | ||
| mock_block_based_table.h | ||
| parsed_full_filter_block.cc | ||
| parsed_full_filter_block.h | ||
| partitioned_filter_block.cc | ||
| partitioned_filter_block.h | ||
| partitioned_filter_block_test.cc | ||
| partitioned_index_iterator.cc | ||
| partitioned_index_iterator.h | ||
| partitioned_index_reader.cc | ||
| partitioned_index_reader.h | ||
| reader_common.cc | ||
| reader_common.h | ||
| uncompression_dict_reader.cc | ||
| uncompression_dict_reader.h | ||