Did you switch the JVM too?
On Thu, May 16, 2013 at 7:14 PM, Wei Zhao <dweiz...@gmail.com> wrote: > We are migrating from Solr 3.5 to Solr 4.2. > > After some performance testing, we found 4.2's memory usage is a lot higher > than 3.5. Our 12GM max heap process used to handle the test pretty well > with > 3.5. while, with 4.2, the same test runs into serious GC half way (20 > minutes) into the test. > > Anyone knows that something is significantly different from Solr 3.5 in > terms of memory usage? > > We also notice on a slave, IndexeWriter class is actually taking > significant > portion (around 3GB) of the heap. Why Solr opens a IndexWriter on a slave? > Is there a conf I can use to turn it off? I don't remember I saw such heap > usage by a similar class in Solr 3.5. > > > > -- > View this message in context: > http://lucene.472066.n3.nabble.com/Solr-4-memory-usage-increase-tp4064066.html > Sent from the Solr - User mailing list archive at Nabble.com. > -- Bill Bell billnb...@gmail.com cell 720-256-8076