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MDEV-4506: Parallel replication: Intermediate commit.

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Impement options --binlog-commit-wait-count and
--binlog-commit-wait-usec.

These options permit the DBA to deliberately increase latency
of an individual commit to get more transactions in each
binlog group commit. This increases the opportunity for
parallel replication on the slave, and can also decrease I/O
load on the master.

The options also make it easier to test the parallel
replication with mysql-test-run.
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2013-07-05 00:26:15 +02:00
parent b5a496a777
commit e654be3865
8 changed files with 150 additions and 5 deletions
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sql/rpl_parallel.h
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@ -50,7 +50,6 @@ struct rpl_parallel_entry {
uint64 last_seq_no;
uint64 last_commit_id;
bool active;
bool need_signal;
rpl_parallel_thread *rpl_thread;
/*
The sub_id of the last transaction to commit within this domain_id.