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

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Andrew Kryczka aa2b3bf675 Added `TraceOptions::preserve_write_order` (#9334) ... Summary: This option causes trace records to be written in the serialized write thread. That way, the write records in the trace must follow the same order as writes that are logged to WAL and writes that are applied to the DB. By default I left it disabled to match existing behavior. I enabled it in `db_stress`, though, as that use case requires order of write records in trace matches the order in WAL. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9334 Test Plan: - See if below unsynced data loss crash test can run for 24h straight. It used to crash after a few hours when reaching an unlucky trace ordering. ``` DEBUG_LEVEL=0 TEST_TMPDIR=/dev/shm /usr/local/bin/python3 -u tools/db_crashtest.py blackbox --interval=10 --max_key=100000 --write_buffer_size=524288 --target_file_size_base=524288 --max_bytes_for_level_base=2097152 --value_size_mult=33 --sync_fault_injection=1 --test_batches_snapshots=0 --duration=86400 ``` Reviewed By: zhichao-cao Differential Revision: D33301990 Pulled By: ajkr fbshipit-source-id: 82d97559727adb4462a7af69758449c8725b22d3		3 years ago
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rocksdb	Added `TraceOptions::preserve_write_order` (#9334)	3 years ago