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MDEV-4506: Parallel replication: Intermediate commit.

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First step of splitting out part of Relay_log_info, so that different
event groups being applied in parallel can each use their own copy.
This commit is contained in:
unknown
2013-06-28 15:19:30 +02:00
parent 7e5dc4f074
commit 1b3dc66e31
12 changed files with 161 additions and 89 deletions
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10
sql/rpl_parallel.cc
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@@ -13,15 +13,18 @@ rpt_handle_event(rpl_parallel_thread::queued_event *qev,
struct rpl_parallel_thread *rpt)
{
int err;
Relay_log_info *rli= qev->rli;
struct rpl_group_info *rgi= qev->rgi;
Relay_log_info *rli= rgi->rli;
thd->rli_slave= rli;
thd->rpl_filter = rli->mi->rpl_filter;
/* ToDo: Access to thd, and what about rli, split out a parallel part? */
mysql_mutex_lock(&rli->data_lock);
err= apply_event_and_update_pos(qev->ev, thd, rli, rpt);
err= apply_event_and_update_pos(qev->ev, thd, rgi, rpt);
/* ToDo: error handling. */
/* ToDo: also free qev->ev, or hold on to it for a bit if necessary. */
my_free(rgi);
rgi= NULL;
}
@@ -398,7 +401,8 @@ rpl_parallel::do_event(Relay_log_info *rli, Log_event *ev, THD *parent_thd)
return true;
}
qev->ev= ev;
qev->rli= rli;
qev->rgi= rli->group_info;
rli->group_info= NULL; /* Avoid conflict with groups applied in parallel */
qev->next= NULL;
if (ev->get_type_code() == GTID_EVENT)