Hello,
One of our deployed Solr (1.3) setup is having out of memory issues and I'm not sure how to troubleshoot it. I've read a few posts (including http://old.nabble.com/Debugging-Solr-memory-usage-heap-problems-ts883279 4.html#a8832794) but I think this situation is slightly different. Here's the setup: 1 master and 1 slave are located on a the same VM (using a 64-bit JVM) 1 slave running on its own VM (using a 64-bit JVM) >From what I've been told, nothing else is running on those VMs. Index size is about 100-200 MB. Solrconfig.xml cache settings: <filterCache class="solr.LRUCache" size="15000" initialSize="5000" autowarmCount="5000"/> <queryResultCache class="solr.LRUCache" size="15000" initialSize="5000" autowarmCount="5000"/> <documentCache class="solr.LRUCache" size="15000" initialSize="5000"/> Both slaves at some point have gone out of memory (though not both at the same time) when receiving a moderate load of queries (a few queries per second - don't have an exact stat here). We started with a heap size of 1GB and ended up having to bump it up to 3.5GB. It seems really odd that we'd have to have a heap size that large when the index itself is not really big. Any thoughts on what could be really off here? Is there a way to determine the cache sizes in bytes? I noticed that there was a thread about other issues running Solr on VMs, has anyone else had problems using VMWare? From what I'm told, it seems like moving to physical servers won't be a fast/easy change so I'm looking for any help I can get for this configuration. Thanks, Laurent Vauthrin
