Hi guys, I want to share my observations about using gsub with regex. I use gsub for extracting application instance name from log file path. Example path: /logs/pppas/logs_tcc/app619_pppas-prod1/payload.log where app619_pppas-prod1 is instance name. Originally i used static values in gsub: mu…

Using regex in gsub raises CPU usage significantly

Ged October 5, 2019, 11:33am 3

Correct, and when i have huge amount of log lines for processing impact on CPU usage is significant. Just posted this to Logstash users to be aware of that.

Thanks !

Ged

Topic		Replies	Views
Varnish grok pattern optimization Logstash	3	1666	July 6, 2017
How grok filter use more cpu? Logstash	5	593	May 30, 2018
My logstash running sometime have [Regexp Interrupted] exception then it's dead Logstash	4	862	January 30, 2018
Logstash consuming CPU usage over 100% Logstash	11	13964	July 6, 2017
Worker thread consumes 100 % CPU (for no reason) Logstash	5	15107	November 4, 2022

Using regex in gsub raises CPU usage significantly

Related topics