Re: Garbage Collection Metrics

2019-03-18 Thread Jeff Courtade
yes i needed to see behavior ovr time from 14 servers and correlate it. Putting it into zabbix gave me behavior type graphs... like this unusual gc activity... [image: image.png] On Mon, Mar 18, 2019 at 1:32 PM Erick Erickson wrote: > GCViewer will work on the GC logging file created by Solr.

Re: Re: Garbage Collection Metrics

2019-03-18 Thread Branham, Jeremy (Experis)
I get these metrics by pushing the JMX data into Graphite, then use the non-negative derivative function on the GC ‘time’ metric. It essentially shows the amount of change on a counter, at the specific time it occurred. Jeremy Branham jb...@allstate.com On 3/18/19, 12:06 PM, "Jeff Courtade"

Re: Garbage Collection Metrics

2019-03-18 Thread Erick Erickson
GCViewer will work on the GC logging file created by Solr. It has some nice summaries, particularly of stop-the-world GC events. From there, you can pinpoint the exact times from manual inspection of the GC log. It usually looks like this: Your replica went into recovery when again? sometime be

Re: Garbage Collection Metrics

2019-03-18 Thread Jeff Courtade
So, I had a problem when at a customer site. They use zabbix for data collection and alerting. The solr server had been setup to use only jmx metrics. the jvm was unstable and would lock up for a period of time and the metrics and counters would be all screwed up. Because it was using jmx to ale

Re: Garbage Collection Metrics

2019-03-18 Thread Jeff Courtade
The only way I found to track GC times was by truning on GC logging and the writing cronjob data collection script and graphing it in zabbix On Mon, Mar 18, 2019 at 12:34 PM Erick Erickson wrote: > Attachments are pretty aggressively stripped by the apache mail server, so > it didn’t come throug

Re: Garbage Collection Metrics

2019-03-18 Thread Erick Erickson
Attachments are pretty aggressively stripped by the apache mail server, so it didn’t come through. That said, I’m not sure how much use just the last GC time is. What do you want it for? This sounds a bit like an XY problem. Best, Erick > On Mar 17, 2019, at 2:43 PM, Karthik K G wrote: > > H