[MDEV-17100] Galera 4: Binlog group commit Created: 2018-08-30  Updated: 2020-09-30  Resolved: 2020-09-30

Status: Closed
Project: MariaDB Server
Component/s: Galera
Fix Version/s: N/A

Type: Task Priority: Major
Reporter: Jan Lindström (Inactive) Assignee: Jan Lindström (Inactive)
Resolution: Fixed Votes: 0
Labels: tests

Issue Links:
PartOf
is part of MDEV-16405 Merge Galera 4 changes from mariaDB_w... Closed

 Description   

mkaruza Could you create at least one test case for galera binlog group commit ?



 Comments   
Comment by Seppo Jaakola [ 2018-12-05 ]

wsrep API v26 has separated replication call into separate certification and commit steps. With that, it is possible to support binlog group commit, and this has been done in the MySQL version. however, MariaDB has different group commit logic, and remaining work is to make sure that the integration work done so far works and group commit really "kicks in".
Part of the work will be performance benchmarking.

Comment by Geoff Montee (Inactive) [ 2019-03-05 ]

Will the performance benchmarks also test different values for binlog_commit_wait_count and binlog_commit_wait_usec?

https://mariadb.com/kb/en/library/replication-and-binary-log-system-variables/#binlog_commit_wait_count

https://mariadb.com/kb/en/library/replication-and-binary-log-system-variables/#binlog_commit_wait_usec

https://mariadb.com/kb/en/library/group-commit-for-the-binary-log/#changing-group-commit-frequency

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