github/repmgr
1
0
Fork 0
mirror of https://github.com/EnterpriseDB/repmgr.git synced 2026-03-22 22:56:29 +00:00
Code Issues Packages Projects Releases 1 Wiki Activity

repmgrd: improve walsender disable check

Browse Source 
Specifically, don't attempt to disable walsenders if "standby_disconnect_on_failover"
is "true", but the repmgr user is not a superuser.

This restriction can be lifted from PostgreSQL 15.
This commit is contained in:
Ian Barwick
2022-05-16 11:51:55 +09:00
parent c0763c94c8
commit 6f87d2c61e
5 changed files with 58 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
repmgrd-physical.c
View File

@@ -2862,6 +2862,7 @@ do_primary_failover(void)
bool final_result = false;
NodeInfoList sibling_nodes = T_NODE_INFO_LIST_INITIALIZER;
int new_primary_id = UNKNOWN_NODE_ID;
bool standby_disconnect_on_failover = false;
/*
* Double-check status of the local connection
@@ -2874,20 +2875,20 @@ do_primary_failover(void)
*/
if (config_file_options.standby_disconnect_on_failover == true)
{
NodeInfoListCell *cell = NULL;
NodeInfoList check_sibling_nodes = T_NODE_INFO_LIST_INITIALIZER;
int i;
/*
* Determine whether we can actually disable the walsender; this depends
* on PostgreSQL version and user permissions.
*/
standby_disconnect_on_failover = can_disable_walsender(local_conn);
bool sibling_node_wal_receiver_connected = false;
if (standby_disconnect_on_failover == true)
{
NodeInfoListCell *cell = NULL;
NodeInfoList check_sibling_nodes = T_NODE_INFO_LIST_INITIALIZER;
int i;
bool sibling_node_wal_receiver_connected = false;
if (PQserverVersion(local_conn) < 90500)
{
log_warning(_("\"standby_disconnect_on_failover\" specified, but not available for this PostgreSQL version"));
/* TODO: format server version */
log_detail(_("available from PostgreSQL 9.5, this PostgreSQL version is %i"), PQserverVersion(local_conn));
}
else
{
disable_wal_receiver(local_conn);
/*
@@ -2971,7 +2972,7 @@ do_primary_failover(void)
log_debug("election result: %s", _print_election_result(election_result));
/* Reenable WAL receiver, if disabled */
if (config_file_options.standby_disconnect_on_failover == true)
if (standby_disconnect_on_failover == true)
{
/* adjust "wal_retrieve_retry_interval" but don't wait for WAL receiver to start */
enable_wal_receiver(local_conn, false);