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MDEV-4506: Parallel replication. Intermediate commit.

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Hook in the wait-for-prior-commit logic (not really tested yet).
Clean up some resource maintenance around rpl_group_info (may still be some
smaller issues there though).
Add a ToDo list at the top of rpl_parallel.cc
This commit is contained in:
unknown
2013-07-03 13:46:33 +02:00
parent 1b3dc66e31
commit 31a5edb5c2
10 changed files with 259 additions and 89 deletions
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11
sql/rpl_parallel.h
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@ -25,7 +25,6 @@ struct rpl_parallel_thread {
Log_event *ev;
struct rpl_group_info *rgi;
} *event_queue, *last_in_queue;
rpl_parallel_thread *wait_for; /* ToDo: change this ... */
};
@ -52,6 +51,14 @@ struct rpl_parallel_entry {
uint64 last_commit_id;
bool active;
rpl_parallel_thread *rpl_thread;
/*
The sub_id of the last transaction to commit within this domain_id.
Must be accessed under LOCK_parallel_entry protection.
*/
uint64 last_committed_sub_id;
mysql_mutex_t LOCK_parallel_entry;
uint64 current_sub_id;
struct rpl_group_info *current_group_info;
};
struct rpl_parallel {
HASH domain_hash;
@ -60,7 +67,7 @@ struct rpl_parallel {
rpl_parallel();
~rpl_parallel();
rpl_parallel_entry *find(uint32 domain_id);
bool do_event(Relay_log_info *rli, Log_event *ev, THD *thd);
bool do_event(struct rpl_group_info *serial_rgi, Log_event *ev, THD *thd);
};