How big is your index? What kind of queries do you tend to see? Do you facet on a lot of fields? Sort on a lot of fields?
Before you get the OOM and are running along nicely, how much RAM is used? On Nov 9, 2011, at 3:33 PM, Steve Fatula wrote: > We get at rare times out of memory errors during the day. I know one reason > for this is data imports, none are going on. I see in the wiki, document adds > have some quirks, not doing that. I don't know to to expect for memory use > though. > > We had Solr running under Tomcat set to 2G ram. I presume cache size has an > effect on memory, that's set to 30,000 for filter, document and queryResult. > Have experimented with different sizes for a while, these limits are all > lower than we used to have them set to. So, hoping there no sort of memory > leak involved. > > In any case, some of the messages are: > > Exception in thread "http-8080-21" java.lang.OutOfMemoryError: Java heap space > > > Some look like this: > > Exception in thread "http-8080-22" java.lang.NullPointerException > at > java.util.concurrent.ConcurrentLinkedQueue.offer(ConcurrentLinkedQueue.java:273) > ... > > I presume the null pointer is a result of being out of memory. > > Should Solr possibly need more than 2GB? What else can we tune that might > reduce memory usage? - Mark Miller lucidimagination.com
