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"cluster show": improve handling of database errors

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In particular, if running "repmgr cluster show" against a database
without the repmgr metadata, showing the error (rather than just
"no records found" etc.) will provide some clues about the problem.
This commit is contained in:
Ian Barwick
2018-02-05 10:15:48 +09:00
parent 4fb085f52d
commit 657ed83921
4 changed files with 31 additions and 7 deletions
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13
repmgr-action-cluster.c
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@@ -82,6 +82,7 @@ do_cluster_show(void)
NodeInfoListCell *cell = NULL;
int i = 0;
ItemList warnings = {NULL, NULL};
bool success = false;
/* Connect to local database to obtain cluster connection data */
log_verbose(LOG_INFO, _("connecting to database"));
@@ -91,11 +92,19 @@ do_cluster_show(void)
else
conn = establish_db_connection_by_params(&source_conninfo, true);
get_all_node_records_with_upstream(conn, &nodes);
success = get_all_node_records_with_upstream(conn, &nodes);
if (success == false)
{
/* get_all_node_records_with_upstream() will print error message */
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}
if (nodes.node_count == 0)
{
log_error(_("unable to retrieve any node records"));
log_error(_("no node records were found"));
log_hint(_("ensure at least one node is registered"));
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}