Hi, I just looked at SPM monitoring we have for Solr servers that run search-lucene.com. One of them has 1-2 collections/minute. Another one closer to 10. These are both small servers with small JVM heaps. Here is a graph of one of them:
https://apps.sematext.com/spm/s/104ppwguao Just looked at some other Java servers we have running, not Solr, and I see close to 60 small collections per minute. So these numbers will vary a lot depending on the heap size and other JVM settings, as well as the actual code/usage. :) Otis -- Solr & ElasticSearch Support http://sematext.com/ On Mon, May 6, 2013 at 4:39 PM, Shawn Heisey <s...@elyograg.org> wrote: > On 5/6/2013 1:39 PM, Michael Della Bitta wrote: >> >> Hi Shawn, >> >> Thanks a lot for this entry! >> >> I'm wondering, when you say "Garbage collections that happen more often >> than ten or so times per minute may be an indication that the heap size is >> too small," do you mean *any* collections, or just full collections? > > > My gut reaction is any collection, but in extremely busy environments a rate > of ten per minute might be a very slow day on a setup that's working > perfectly. > > As I wrote that particular bit, I was thinking that any number I put there > was probably wrong for some large subset of users, but I wanted to finish > putting down my thoughts and improve it later. > > Thanks, > Shawn >
