On 5/4/2015 2:36 PM, Vinay Pothnis wrote: > But nonetheless, we will give the latest solrJ client + cloudSolrServer a > try. > > * Yes, the documents are pretty small. > * We are using G1 collector and there are no major GCs, but however, there > are a lot of minor GCs sometimes going upto 2s per minute overall. > * We are allocating 12G of memory. > * Query rate: 3750 TPS (transactions per second) > * I need to get the exact rate for insert/updates. > > I will make the solrJ client change first and give it a test.
Whether that 12GB heap size is for Solr itself or for your client code, with a heap that large, you should be doing more tuning than simply turning on G1GC. I have spent quite a lot of time working on GC tuning for Solr, and the results of that work can be found here: http://wiki.apache.org/solr/ShawnHeisey I cannot claim that these are the best options you can find for Solr, but they've worked well for me, and for others. Thanks, Shawn
