Comments (3)
XA means XA between binlog and MyRocks -- writing xid into MyRocks, and proper roll forward/rollback at crash recovery.
from mysql-5.6.
This shows the impact (perf loss) from not having group commit in MyRocks.
This is the insert rate from a short run of the insert benchmark -- insert only, 3 secondary indexes/table, 10 clients each loading into a separate table, 10M rows total inserted using FB MySQL 5.6 with MyRocks vs Percona Server 5.6.26 for Toku. The database log (MyRocks, Toku) was not sync'ed on commit.
The database is on a 6 disk array with HW RAID and battery backed write cache.
Summary:
- MyRocks loses perf from not having group commit
- Toku in Percona Server no longer has a fast path when unique checks are disabled
Legend:
- sync=1 - binlog enabled, sync_binlog=1
- sync=0 - binlog enabled, sync_binlog=0
- nobl - binlog disabled
- nobl, nocheck - binlog disabled, unique checks disabled
inserts/second
rocks toku config
63694 129870 sync=1
64935 133333 sync=0
151515 136986 nobl
204082 136986 nobl, nocheck
from mysql-5.6.
XA and group commit support had been added to MyRocks.
from mysql-5.6.
Related Issues (20)
- force_flush_memtable_and_lzero_now always compacts to physical L1
- Make compilation faster HOT 1
- How to achieve ~20% replication throughput improvement using Read Free Replication (RFR) feature
- Keep long-running MyRocks mtr tests in their own suite HOT 1
- MyRocks 8.0.28 has poor performance of primary key range query HOT 1
- create secondary index needs attention
- issue while install HOT 1
- Error during create secondary index
- Update the Build Steps page HOT 1
- MyRocks engine should respect WITH_UNIT_TESTS
- Allow users to manually set the number of block cache shards HOT 1
- Provide a counter to show pending compaction bytes for RocksDB
- MyRocks does commit step non-durably under server group 2PC protocol HOT 1
- alter talbe add index optimization
- Range lock support HOT 2
- Cached RocksDB transaction object accessed after delete by XA COMMIT
- optimize table has no effect on HIDDEN_PK table
- Rdb_iterator_base::next_with_direction: too many compares for eof check HOT 2
- Determin secondary index value emptiness by datadic
- undefined reference to `sgemm_' When compiling vector DB
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from mysql-5.6.