Re: Huge swap usage

From: Oliver Jagape <oliver(dot)jagape(at)concentrix(dot)com>
To: Mariano Di Girolamo <m(dot)digirolamo(at)tecnodata-srl(dot)it>, "pgsql-admin(at)lists(dot)postgresql(dot)org" <pgsql-admin(at)lists(dot)postgresql(dot)org>
Subject: Re: Huge swap usage
Date: 2018-02-27 12:38:38
Message-ID: BN3PR0701MB125009E7D4E87D841B156E2295C00@BN3PR0701MB1250.namprd07.prod.outlook.com
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Check this out and try to reconfigure your PostgreSQL.conf.

Thanks to the site owner.

http://pgtune.leopard.in.ua/

PgTune<http://pgtune.leopard.in.ua/>
pgtune.leopard.in.ua
PGTune calculate configuration for PostgreSQL based on the maximum performance for a given hardware configuration. It isn't a silver bullet for the optimization ...

Oliver
________________________________
From: Mariano Di Girolamo <m(dot)digirolamo(at)tecnodata-srl(dot)it>
Sent: Tuesday, February 27, 2018 7:45:37 PM
To: pgsql-admin(at)lists(dot)postgresql(dot)org
Subject: Huge swap usage

** EXTERNAL EMAIL **
Hi to all,
I have a virtual server centos 7.3 with posgres 9.5.7 and I have a problem with huge swap usage.
In this moment I have 0 GB of free swap and 6,5 GB of RAM free.
My swappiness is set to 30 (as default) and the page size is 4 kB.
Is there someone that can help me to solve the problem?
Below my server configuration.

Thanks

---------------------
Centos 7.3.1611
vCPU: 4
RAM: 16 GB
SWAP: 4GB
Postgresql: 9.5.7

## custom section of postgresql.conf ##
port = 5432
max_connections = 250
shared_buffers = 4GB
maintenance_work_mem = 512MB
checkpoint_timeout = 30min
escape_string_warning = off
standard_conforming_strings = off
work_mem = 32MB
effective_cache_size = 4GB
max_wal_senders = 10
log_parser_stats = on
log_planner_stats = on
log_executor_stats = on
log_statement_stats = on
log_autovacuum_min_duration = 216000000

Mariano Di Girolamo
cell. +39 329 <callto:+39%20329%200552286> 0552286
tel. +39 0735 7626263<callto:+39%200735%207626263>
email: m(dot)digirolamo(at)tecnodata-srl(dot)it <mailto:m(dot)digirolamo(at)tecnodata-srl(dot)it>
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