Search found 6 matches

by tela
Fri Apr 13, 2018 1:54 am
Forum: Nagios Log Server
Topic: Server slow performance and grok issue
Replies: 12
Views: 2883

Re: Server slow performance and grok issue

It seems regex positive lookbehind/lookahead (?<=etc) is support in grok debugger but not in nagios log server, is it normal? Nagios Log Server uses Logstash under the hood for it's message parsing. The grok filter Logstash plugin uses Oniguruma for its regex library, which does indeed support look...
by tela
Fri Apr 13, 2018 1:52 am
Forum: Nagios Log Server
Topic: Server slow performance and grok issue
Replies: 12
Views: 2883

Re: Server slow performance and grok issue

What is the recommended configuration / setup /number of servers for current amount of log? And do you know the issue with grok is expected behaviour or not? Thanks for your suggestion. In order to give a recommendation, I would need to know what you expect the peak messages per day At a minimum, a...
by tela
Wed Apr 11, 2018 9:32 pm
Forum: Nagios Log Server
Topic: Server slow performance and grok issue
Replies: 12
Views: 2883

Re: Server slow performance and grok issue

What is the recommended configuration / setup /number of servers for current amount of log?
And do you know the issue with grok is expected behaviour or not?
Thanks for your suggestion.
by tela
Tue Apr 10, 2018 9:57 pm
Forum: Nagios Log Server
Topic: Server slow performance and grok issue
Replies: 12
Views: 2883

Re: Server slow performance and grok issue

Sorry forgot to mention it is come from ova and I adjust the VM to 4 core and 12GB Memory running in SATA disk.
I was changed to SSD one to test but seems same issue occur.
by tela
Tue Apr 10, 2018 9:53 pm
Forum: Nagios Log Server
Topic: Server slow performance and grok issue
Replies: 12
Views: 2883

Re: Server slow performance and grok issue

Sorry for late reply.
I just capture current page during system is healthy.
Will try to capture one when system is slow next time.
https://imgur.com/a/AKGvP

Log size is variable from around 6GB to 21 GB per day, average is around 10GB.
by tela
Wed Mar 28, 2018 10:42 pm
Forum: Nagios Log Server
Topic: Server slow performance and grok issue
Replies: 12
Views: 2883

Server slow performance and grok issue

Hi, We are currently evaluating this product for a month now and having some issue looking to resolve. Recently the log server got very slow response like login takes more than 5 mins to go into dashboard and can't response for searching. After server restart it returns to normal but issue happened ...