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repmgrd: better handling of missing upstream_node_id

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Ensure we default to master node.
This commit is contained in:
Ian Barwick
2016-05-11 21:47:40 +09:00
committed by Ian Barwick
parent 57f9432692
commit 21b2ff1a1f
2 changed files with 36 additions and 8 deletions
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35
dbutils.c
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@@ -604,7 +604,7 @@ get_upstream_connection(PGconn *standby_conn, char *cluster, int node_id,
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_err(_("unable to get conninfo for upstream server\n%s\n"),
log_err(_("error when attempting to find upstream server\n%s\n"),
PQerrorMessage(standby_conn));
PQclear(res);
return NULL;
@@ -612,15 +612,42 @@ get_upstream_connection(PGconn *standby_conn, char *cluster, int node_id,
if (!PQntuples(res))
{
log_notice(_("no record found for upstream server\n"));
PQclear(res);
return NULL;
log_debug("no record found for upstream server\n");
sqlquery_snprintf(sqlquery,
" SELECT un.conninfo, un.name, un.id "
" FROM %s.repl_nodes un "
" WHERE un.cluster = '%s' "
" AND un.type='master' "
" AND un.active IS TRUE",
get_repmgr_schema_quoted(standby_conn),
cluster);
res = PQexec(standby_conn, sqlquery);
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
log_err(_("error when attempting to find active master server\n%s\n"),
PQerrorMessage(standby_conn));
PQclear(res);
return NULL;
}
if (!PQntuples(res))
{
PQclear(res);
log_notice(_("no record found for active master server\n"));
return NULL;
}
log_debug("record found for active master server\n");
}
strncpy(upstream_conninfo, PQgetvalue(res, 0, 0), MAXCONNINFO);
if (upstream_node_id_ptr != NULL)
*upstream_node_id_ptr = atoi(PQgetvalue(res, 0, 1));
*upstream_node_id_ptr = atoi(PQgetvalue(res, 0, 2));
PQclear(res);