Hi - as far as i know it has never been a good idea to run Lucene on OpenJDK 6 at all. Only either Oracle Java 6 or higher or OpenJDK 7.
On Wednesday, March 26, 2014 06:54:41 PM Nigel Sheridan-Smith wrote: > Hi all, > > This is a bit of a 'heads up'. We have recently come across this bug on > Ubuntu with OpenJDK: > > https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/1295987 > > Basically, finalizers are not being run, so effectively all of the commits > written in SolrIndexWriter are not Garbage Collected. > > if you find that your Java heap memory grows continuously at around 4-8Mb > per index update, and you are running this version of OpenJDK, and the > Garbage Collector does not recycle much memory from the "Old Gen" > generation, then this is likely to be your problem. > > We increased our heap space from 1Gb to 4Gb but the memory usage continued > to grow at about the same pace. It was only when we ran 'jmap' and analysed > the heap dump with Eclipse MAT that it became obvious that unreferenced > objects were not being correctly Garbage Collected. > > i hope this helps someone else! > > Cheers, > > Nigel Sheridan-Smith
