On 8/14/2014 10:06 AM, Scott Rankin wrote: > My question was actually more about what in Solr might cause the > server to suddenly go from a very consistent heap size of 300-400 MB > to over 2 GB in a matter of minutes with no changes in traffic. I get > why the VM is crashing, I just don’t know why Solr is suddenly going nuts.
That's nearly impossible to answer. Chances are that something has changed about the requests that Solr is receiving and now it's required to do something that it wasn't before, something that uses a lot of heap memory. The other likely possibilities are: * There's a bug in your solr version or in some software component that you are using with Solr. That can include the Java virtual machine, the servlet container, and/or any third-party Solr components. * You were running on the hairy edge of heap usage already, and something (a traffic increase, a slight change to your requests) pushed you over the edge into OutOfMemory. Thanks, Shawn