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| author | Kristian Nielsen <knielsen@knielsen-hq.org> | 2014-12-05 16:09:48 +0100 |
|---|---|---|
| committer | Kristian Nielsen <knielsen@knielsen-hq.org> | 2014-12-06 08:49:50 +0100 |
| commit | db21fddc3740dfa48f3443751c48282467afac5e (patch) | |
| tree | 3ed31a4a5ce9abf3fe98cdd9c9bdf68ba8b5832b /mysql-test/r/mysqld--help.result | |
| parent | 1e3f09f1638e2bdec6029f6c98317d17d7ca76d1 (diff) | |
| download | mariadb-git-db21fddc3740dfa48f3443751c48282467afac5e.tar.gz | |
MDEV-6676: Optimistic parallel replication
Implement a new mode for parallel replication. In this mode, all transactions
are optimistically attempted applied in parallel. In case of conflicts, the
offending transaction is rolled back and retried later non-parallel.
This is an early-release patch to facilitate testing, more changes to user
interface / options will be expected. The new mode is not enabled by default.
Diffstat (limited to 'mysql-test/r/mysqld--help.result')
| -rw-r--r-- | mysql-test/r/mysqld--help.result | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/mysql-test/r/mysqld--help.result b/mysql-test/r/mysqld--help.result index e37d86d9567..c5442c3a264 100644 --- a/mysql-test/r/mysqld--help.result +++ b/mysql-test/r/mysqld--help.result @@ -920,6 +920,17 @@ The following options may be given as the first argument: parallel replication thread when reading ahead in the relay log looking for opportunities for parallel replication. Only used when --slave-parallel-threads > 0. + --slave-parallel-mode=name + Controls what transactions are applied in parallel when + using --slave-parallel-threads. Syntax: + slave_parallel_mode=value[,value...], where "value" could + be one or more of: "domain", to apply different + replication domains in parallel; "follow_master_commit", + to apply in parallel transactions that group-committed + together on the master; "transactional", to + optimistically try to apply all transactional DML in + parallel; and "waiting" to extend "transactional" to even + transactions that had to wait on the master. --slave-parallel-threads=# If non-zero, number of threads to spawn to apply in parallel events on the slave that were group-committed on @@ -1341,6 +1352,7 @@ slave-exec-mode STRICT slave-max-allowed-packet 1073741824 slave-net-timeout 3600 slave-parallel-max-queued 131072 +slave-parallel-mode domain,follow_master_commit slave-parallel-threads 0 slave-run-triggers-for-rbr NO slave-skip-errors (No default value) |