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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 |
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| .. | ||
| clipping_iterator.h | ||
| clipping_iterator_test.cc | ||
| compaction.cc | ||
| compaction.h | ||
| compaction_iteration_stats.h | ||
| compaction_iterator.cc | ||
| compaction_iterator.h | ||
| compaction_iterator_test.cc | ||
| compaction_job.cc | ||
| compaction_job.h | ||
| compaction_job_stats_test.cc | ||
| compaction_job_test.cc | ||
| compaction_outputs.cc | ||
| compaction_outputs.h | ||
| compaction_picker.cc | ||
| compaction_picker.h | ||
| compaction_picker_fifo.cc | ||
| compaction_picker_fifo.h | ||
| compaction_picker_level.cc | ||
| compaction_picker_level.h | ||
| compaction_picker_test.cc | ||
| compaction_picker_universal.cc | ||
| compaction_picker_universal.h | ||
| compaction_service_job.cc | ||
| compaction_service_test.cc | ||
| compaction_state.cc | ||
| compaction_state.h | ||
| file_pri.h | ||
| sst_partitioner.cc | ||
| subcompaction_state.cc | ||
| subcompaction_state.h | ||
| tiered_compaction_test.cc | ||