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Let the clone happen in a session with synchronous_commit off. This

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is because in pg 9.1 the default configuration can easily allow sync
rep to be activated even if no standby is present and will block
pg_start_backup() and pg_stop_backup() in that case.
This commit is contained in:
Jaime Casanova
2011-10-03 14:04:27 -05:00
parent 65cf045a63
commit cb764b180d
1 changed files with 14 additions and 0 deletions
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repmgr.c
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@@ -896,6 +896,20 @@ do_standby_clone(void)
log_notice(_("Starting backup...\n")); log_notice(_("Starting backup...\n"));
/*
* in pg 9.1 default is to wait for a sync standby to ack,
* avoid that by turning off sync rep for this session
*/
sqlquery_snprintf(sqlquery, "SET synchronous_commit TO OFF)");
res = PQexec(conn, sqlquery);
if (PQresultStatus(res) != PGRES_COMMAND_OK)
{
log_err("Can't set synchronous_commit: %s\n", PQerrorMessage(conn));
PQclear(res);
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}
/* /*
* inform the master we will start a backup and get the first XLog filename * inform the master we will start a backup and get the first XLog filename
* so we can say to the user we need those files * so we can say to the user we need those files