Type:
Priority:
Resolution:
Fixed
currently we have a status variable for the total group_commits. This compromises of group commits due to binlog_commit_wait_count, binlog_commit_wait_usec or indeed conflicting transactions that need to be in a separate group.
Showing a breakdown as to the reason of the group commit will enable a more informed tuning of the system variables controlling the group commit and also identify how often these aren't taking part in the group determination.
patch: https://github.com/MariaDB/server/pull/30
relates to
MDEV-7249
Performance problem in parallel replication with multi-level slaves
Closed
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Task
Minor
MDEV-7249 Performance problem in parallel replication with multi-level slaves
Pushed to 10.1.5. Thanks, Daniel!