Hello, Thanks for your answer.
We use JVisualVM. The CPU usage is very high (90%), but the GC activity shows less than 0.01% average activity. Plus the heap usage stays low (below 4G while the max heap size is 16G). Do you have a different tool to suggest to check the GC? Do you think there is something else me might not see? Thanks again, Elisabeth 2014-03-31 16:26 GMT+02:00 Shawn Heisey <s...@elyograg.org>: > On 3/31/2014 6:57 AM, elisabeth benoit wrote: > > We are currently using solr 4.2.1. Our index is updated on a daily basis. > > After noticing solr query time has increased (two times the initial size) > > without any change in index size or in solr configuration, we tried an > > optimize on the index but it didn't fix our problem. We checked the > garbage > > collector, but everything seemed fine. What did in fact fix our problem > was > > to delete all documents and reindex from scratch. > > > > It looks like over time our index gets "corrupted" and optimize doesn't > fix > > it. Does anyone have a clue how to investigate further this situation? > > That seems very odd. I have one production copy of my index using > 4.2.1, and it has been working fine for quite a long time. We are > transitioning to Solr 4.6.1 now, so the other copy is running that > version. We do occasionally do a full rebuild, but that is for index > content, not for any problems. > > When you say you checked your garbage collector, what tools did you use? > I was having GC pause problems, but I didn't know it until I started > using different tools. > > Thanks, > Shawn > >
