Re: Random OOM Exceptions

2014-08-14 Thread François Schiettecatte
I would also get some metrics when SOLR is doing nothing, the JVM does do work in the background and looking at the memory graph in VisualVM will show a nice sawtooth. François On Aug 14, 2014, at 1:16 PM, Erick Erickson wrote: > bq: I just don’t know why Solr is suddenly going nuts. > > Hm

Re: Random OOM Exceptions

2014-08-14 Thread Erick Erickson
bq: I just don’t know why Solr is suddenly going nuts. Hmmm, as Shawn says, hard to say at this remove. But I've personally doubled the memory requirements for Solr on the _same_ index by altering the query to a pathological one. Something like q=*:*&facet.field=whatever where the field "whatever"

Re: Random OOM Exceptions

2014-08-14 Thread Shawn Heisey
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 wh

Re: Random OOM Exceptions

2014-08-14 Thread Scott Rankin
On 8/14/14, 11:22 AM, "Shawn Heisey" wrote: >On 8/14/2014 7:46 AM, Scott Rankin wrote: >> I¹m running a Solr setup and am getting occasional periods where memory >> usage and GC just spike out of nowhere (unrelated to traffic). I¹m >>hoping >> someone can shed some light. Here¹s the setup: >>

Re: Random OOM Exceptions

2014-08-14 Thread Shawn Heisey
On 8/14/2014 7:46 AM, Scott Rankin wrote: > I¹m running a Solr setup and am getting occasional periods where memory > usage and GC just spike out of nowhere (unrelated to traffic). I¹m hoping > someone can shed some light. Here¹s the setup: > > - Solr 4.3.1, Oracle JDK 1.7.0_51 64 bit on CentOS 6

Random OOM Exceptions

2014-08-14 Thread Scott Rankin
Hello all, I¹m running a Solr setup and am getting occasional periods where memory usage and GC just spike out of nowhere (unrelated to traffic). I¹m hoping someone can shed some light. Here¹s the setup: - Solr 4.3.1, Oracle JDK 1.7.0_51 64 bit on CentOS 6.5 - We have 2 Solr servers, one acting