Re: Max connections reached without max connections reached

>
>
> So I guess the question becomes why are they spending so much time in
> the startup state. That should take mere milliseconds, unless the
> clients are being slow to handle the authentication exchange?
>
> I'm also wondering a bit about whether they're being blocked on a lock,
> eg. due to something taking an exclusive lock on pg_authid or pg_database.
> pg_locks might be interesting to check.
>

It's v odd as it happens *sometimes* - having said that it's happening
right this moment:

[enterprisedb(at)oprpgs001 edb-as-11]$ ps -ef|grep postgres: | wc -l
517

[enterprisedb(at)oprpgs001 ~]$ ps -ef|grep postgres: | grep -i start | wc -l
480

postgres=# select count(*) from pg_stat_activity;
count
-------
97
(1 row)

postgres=# select * from pg_locks where not granted;
locktype | database | relation | page | tuple | virtualxid | transactionid
| classid | objid | objsubid | virtualtransaction | pid | mode | granted |
fastpath
----------+----------+----------+------+-------+------------+---------------+---------+-------+----------+--------------------+-----+------+---------+----------
(0 rows)

Logs are showing a stream of:

2021-11-24 10:50:58 AEDT [869]: [1-1]
user=u_rundeck_rw,db=rundeck_cluster,client=10.154.19.23
10.154.19.23(57122) (0:53300)FATAL: remaining connection slots are
reserved for non-replication superuser connections
2021-11-24 10:50:58 AEDT [870]: [1-1]
user=u_rundeck_rw,db=rundeck_cluster,client=10.154.19.23
10.154.19.23(57124) (0:53300)FATAL: remaining connection slots are
reserved for non-replication superuser connections
2021-11-24 10:50:58 AEDT [871]: [1-1]
user=u_rundeck_rw,db=rundeck_cluster,client=10.154.19.23
10.154.19.23(57126) (0:53300)FATAL: remaining connection slots are
reserved for non-replication superuser connections

James

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