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Add "standby unregister"

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This commit is contained in:
Ian Barwick
2017-05-08 23:37:53 +09:00
parent 08d2da3443
commit c7f49541a3
5 changed files with 124 additions and 2 deletions
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82
repmgr-action-standby.c
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@@ -930,6 +930,88 @@ do_standby_register(void)
}
void
do_standby_unregister(void)
{
PGconn *conn;
PGconn *master_conn;
int target_node_id;
t_node_info node_info = T_NODE_INFO_INITIALIZER;
bool node_record_deleted;
log_info(_("connecting to local standby"));
conn = establish_db_connection(config_file_options.conninfo, true);
/* check if there is a master in this cluster */
log_info(_("connecting to master database"));
master_conn = get_master_connection(conn, NULL, NULL);
if (PQstatus(master_conn) != CONNECTION_OK)
{
log_error(_("unable to connect to master server"));
log_detail("%s", PQerrorMessage(conn));
exit(ERR_BAD_CONFIG);
}
/*
* if --node-id was specified, unregister that node rather than the
* current one - this enables inactive nodes to be unregistered.
*/
if (runtime_options.node_id != UNKNOWN_NODE_ID)
target_node_id = runtime_options.node_id;
else
target_node_id = config_file_options.node_id;
/* Check node exists and is really a standby */
if (!get_node_record(master_conn, target_node_id, &node_info))
{
log_error(_("no record found for node %i"), target_node_id);
PQfinish(master_conn);
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}
if (node_info.type != STANDBY)
{
log_error(_("node %i is not a standby server"), target_node_id);
PQfinish(master_conn);
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}
/* Now unregister the standby */
log_notice(_("unregistering node %i"), target_node_id);
node_record_deleted = delete_node_record(master_conn,
target_node_id);
if (node_record_deleted == false)
{
PQfinish(master_conn);
PQfinish(conn);
exit(ERR_BAD_CONFIG);
}
/* Log the event */
create_event_record(master_conn,
&config_file_options,
target_node_id,
"standby_unregister",
true,
NULL);
PQfinish(master_conn);
PQfinish(conn);
log_info(_("standby unregistration complete"));
return;
}
static void
check_source_server()
{