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MDEV-4506: Parallel replication: Intermediate commit.

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Fix some part of update of old-style coordinates in parallel replication:

 - Ignore XtraDB request for old-style coordinates, not meaningful for
   parallel replication (must use GTID to get crash-safe parallel slave).

 - Only update relay log coordinates forward, not backwards, to ensure
   that parallel threads do not conflict with each other.

 - Move future_event_relay_log_pos to rgi.
This commit is contained in:
unknown
2013-10-17 14:11:19 +02:00
parent fcaf1e6a82
commit 7681c6aa78
7 changed files with 69 additions and 42 deletions
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2
sql/rpl_parallel.cc
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@@ -64,6 +64,7 @@ rpt_handle_event(rpl_parallel_thread::queued_event *qev,
/* ToDo: Access to thd, and what about rli, split out a parallel part? */
mysql_mutex_lock(&rli->data_lock);
qev->ev->thd= thd;
rgi->future_event_relay_log_pos= qev->future_event_relay_log_pos;
err= apply_event_and_update_pos(qev->ev, thd, rgi, rpt);
thd->rgi_slave= NULL;
@@ -659,6 +660,7 @@ rpl_parallel::do_event(rpl_group_info *serial_rgi, Log_event *ev)
}
qev->ev= ev;
qev->next= NULL;
qev->future_event_relay_log_pos= rli->future_event_relay_log_pos;
if (typ == GTID_EVENT)
{