On 7/31/2013 12:24 AM, William Bell wrote: > But that link does not tell me which on you are using? > > You are listing like 4 versions on your site. > > Also, what did it fix? Pause times? > > > Any other words of wisdom ?
I'm not sure whether that was directed at me or Roman, but here's my answers: I run one copy of my index on Solr 3.5.0 and another copy on Solr 4.2.1. I have a completely separate (and much smaller) index using SolrCloud on 4.2.1. I was seeing GC pause times of 8-10 seconds on both 3.5.0 and 4.2.1 with an untuned CMS collector. When I switched that to G1 (also untuned), I was seeing pause times of 12 seconds. The average GC time did go down, but the long stop-the-world pauses were worse. I used the jHiccup tool to see the problem. I went to a CMS config much like what Roman used on his benchmarks, and that improved things greatly, but I was still seeing occasional pauses long enough to make my load balancer ping check (5 second timeout) think that the index had gone down. I later tried the CMS config that's on my wiki page. That seems to have fixed my load balancer problem. I do still see pauses of up to a second, but they are not frequent. We have more page load delay from our webapp than we do from Solr, so users aren't noticing when searches occasionally take a little longer. Thanks, Shawn
