Hi Team,
PostgreSQL : 13.6
I saw a strange behavior today. All write queries were stuck on the 'SyncRep' wait event so I reset the synchronous_standby_names.
postgres=# show synchronous_standby_names ;
synchronous_standby_names
---------------------------
(1 row)
We still saw many queries waiting on SyncRep
datid | datname | pid | leader_pid | usesysid | usename | application_name | client_addr | client_hostname | client_port | backend_start | xact_start | query_start
| state_change | wait_event_type | wait_event | state | backend_xid | backend_xmin | query | backend_type
-------+----------+-------+------------+----------+---------+------------------+-------------+-----------------+-------------+-------------------------------+-------------------------------+------------------------
-------+-------------------------------+-----------------+------------+--------+-------------+--------------+-------------------------------------------------------------------------------------+----------------
16401 | repmgr | 24344 | | 16385 | postgres | psql | | | -1 | 2024-07-14 09:55:09.615682+00 | 2024-07-14 09:55:09.622254+00 | 2024-07-14 09:55:09.622
254+00 | 2024-07-14 09:55:09.622255+00 | IPC | SyncRep | active | 343975184 | 343974710 | UPDATE repmgr.sync_check SET row_update_time = (select timezone('UTC', now())) | client backend
(1 row)
Has anyone faced this issue or have any inputs
Thank you,
Nikhil
