Regarding PermGen: Yes we have a bunch of custom jars loaded in solrcloud (containing custom parsing, analyzers). But I haven't specifically enabled any string interning. Does solr intern all strings in a collection by default?
I agree with doc and Filter Query Cache. Query Result cache hits are practically 0 for the large collection since our queries are tail by nature Thanks Nitin On Mon, Mar 3, 2014 at 5:01 AM, Michael Sokolov < msoko...@safaribooksonline.com> wrote: > On 3/3/2014 1:54 AM, KNitin wrote: > >> 3. 2.8 Gb - Perm Gen (I am guessing this is because of interned strings) >> > As others have pointed out, this is really unusual for Solr. We often see > high permgen in our app servers due to dynamic class loading that the > framework performs; maybe you are somehow loading lots of new Solr plugins, > or otherwise creating lots of classes? Of course if you have a plugin or > something that does a lot of string interning, that could also be an > explanation. > > -Mike >
