Re: PostgreSQL DB checkpoint error! - Mailing list pgsql-admin

From Rui DeSousa
Subject Re: PostgreSQL DB checkpoint error!
Date
Msg-id 61537141-A530-4AF4-A11D-7722740D4101@crazybean.net
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In response to RE: PostgreSQL DB checkpoint error!  (Ashok kumar Mani <amani@accelaero.com>)
Responses RE: PostgreSQL DB checkpoint error!  (Ashok kumar Mani <amani@accelaero.com>)
List pgsql-admin


On Apr 28, 2020, at 2:31 AM, Ashok kumar Mani <amani@accelaero.com> wrote:

I am running cronjob at the same time which will do data pruning for zabbix database(psql).  Please let me know if that warning is related to reindex and vacuum ?
 
^C-bash-4.2$ cat /Data/zabbix_hkp/scripts/data_Pruning.sh
psql -d zabbix -f /Data/zabbix_hkp/scripts/three_months_datapurge.sql 1>/Data/zabbix_hkp/scripts_log/data_purging_`date +%m%d%y`.log 2>data_cleaning_err_`date +%m%d%y`.log
-bash-4.2$ cat /Data/zabbix_hkp/scripts/three_months_datapurge.sql
-- Delete alerts which are older than 1 day -> tested on 8th april 2020
delete FROM alerts where age(to_timestamp(alerts.clock)) > interval '90 days';
VACUUM FULL  alerts ;
REINDEX TABLE ALERTS;
delete FROM acknowledges where age(to_timestamp(acknowledges.clock)) > interval '90 days';
VACUUM FULL acknowledges;
REINDEX TABLE acknowledges;

I would say so; the vacuum full and reindex is going create blocking situations that will hang Zabbix.  I wouldn’t run vacuum full or reindex.  

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