Re: Need urgent help -- High cpu on solr

2020-10-16 Thread Rahul Goswami
In addition to the insightful pointers by Zisis and Erick, I would like to mention an approach in the link below that I generally use to pinpoint exactly which threads are causing the CPU spike. Knowing this you can understand which aspect of Solr (search thread, GC, update thread etc) is taking mo

Re: Need urgent help -- High cpu on solr

2020-10-14 Thread Erick Erickson
Zisis makes good points. One other thing is I’d look to see if the CPU spikes coincide with commits. But GC is where I’d look first. Continuing on with the theme of caches, yours are far too large at first glance. The default is, indeed, size=512. Every time you open a new searcher, you’ll be exe

Re: Need urgent help -- High cpu on solr

2020-10-14 Thread Zisis T.
The values you have for the caches and the maxwarmingsearchers do not look like the default. Cache sizes are 512 for the most part and maxwarmingsearchers are 2 (if not limit them to 2) Sudden CPU spikes probably indicate GC issues. The # of documents you have is small, are they huge documents? T