excessive WAL activity - Mailing list pgsql-admin

From Sean Dillon
Subject excessive WAL activity
Date
Msg-id 3F2CE3AE-231C-4B80-A48D-3ABC9C8CE6C7@dillonsoftware.com
Whole thread Raw
Responses Re: excessive WAL activity  (bricklen <bricklen@gmail.com>)
List pgsql-admin
Just turned on WAL archiving to an S3 bucket for a small database - total size of perhaps 2-4G.  After turning on
achiving,we're seeing WAL logs written to S3 at the rate of about 1G every 3 minutes.  That seems completely
unreasonablegiven usage of the db.  I can even see that nearly nothing is happening with this: 

select datname, usename, procpid, client_addr, waiting, query_start, current_query from pg_stat_activity;

Nearly every time I run that, all 20 connections have current_query = '<IDLE>'.  Does current_query include inserts,
updates,and deletes or just select statements? 

Any ideas what to look for or how to solve this?



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