From: Don Seiler <don@seiler.us> Sent: Thursday, April 29, 2021 11:12 AM To: laurenz.albe@cybertec.at Cc: pgsql-admin@postgresql.org Subject: [EXTERNAL] Re: WALWriteLocks
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My gues is that you have too many active client connections, and you are suffering from contention between the many backends that all want to write WAL.
In that case, use a connection pool to limit the number of active connections.
We do have pgbouncer in place already.
Thanks for the replies so far.
What I really want to know in this case is if there is some other PG operation that accounts for a WALWriteLock wait, or is it always an I/O (write) to the WAL file storage, and we can focus our investigation there?
