If you're seeing a crash, then that's a distinct problem from the WARN -- it might be related tothe warning, but it's not identical -- Solr doesn't always (or even normally) crash in the "Overlapping onDeckSearchers" situation
That is what I hoped for. But I could see nothing else in the log. All I'm trying to do is run a full import in the DIH handler and index some 10 records from DB and check the "commit' check box. Then when I immediately re-run the full import again OR do a reload config, I start seeing this warning and my collection crashes. I have turn off autocommit in the solrconfig. I can try and avoid frequent hard commits but I wanted a solution to overcome this WARN if an accidental frequent hard commit happens. Thank you, Aswath NS -----Original Message----- From: Chris Hostetter [mailto:hossman_luc...@fucit.org] Sent: Monday, March 21, 2016 2:26 PM To: solr-user@lucene.apache.org Subject: RE: PERFORMANCE WARNING: Overlapping onDeckSearchers=2 : What I'm wondering is, what should one do to fix this issue when it : happens. Is there a way to recover? after the WARN appears. It's just a warning that you have a sub-optimal situation from a performance standpoint -- either committing too fast, or warming too much. It's not a failure, and Solr will continue to serve queries and process updates -- but meanwhile it's detected that the situation it's in involves wasted CPU/RAM. : In my observation, this WARN comes when I hit frequent hard commits or : hit re-load config. I'm not planning on to hit frequent hard commits, : however sometimes accidently it happens. And when it happens the : collection crashes without a recovery. If you're seeing a crash, then that's a distinct problem from the WARN -- it might be related tothe warning, but it's not identical -- Solr doesn't always (or even normally) crash in the "Overlapping onDeckSearchers" sitaution So if you are seeing crashes, please give us more detials about these crashes: namely more details about everything you are seeing in your logs (on all the nodes, even if only one node is crashing) https://wiki.apache.org/solr/UsingMailingLists -Hoss http://www.lucidworks.com/
