Thanks a lot for your answers! Shawn. Our GC configuration has far less parameters defined, so we'll check this out.
Dimitry, about the expungeDeletes option, we'll add that in the delete process. But from what I read, this is done in the optimize process (cf. http://lucene.472066.n3.nabble.com/Does-expungeDeletes-need-calling-during-an-optimize-td1214083.html). Or maybe not? Thanks again, Elisabeth 2014-04-01 7:52 GMT+02:00 Dmitry Kan <solrexp...@gmail.com>: > Hi, > > We have noticed something like this as well, but with older versions of > solr, 3.4. In our setup we delete documents pretty often. Internally in > Lucene, when a document is client requested to be deleted, it is not > physically deleted, but only marked as "deleted". Our original optimization > assumption was such that the "deleted" documents would get physically > removed on each optimize command issued. We started to suspect it wasn't > always true as the shards (especially relatively large shards) became > slower over time. So we found out about the expungeDeletes option, which > purges the "deleted" docs and is by default false. We have set it to true. > If your solr update lifecycle includes frequent deletes, try this out. > > This of course does not override working towards finding better > GCparameters. > > https://cwiki.apache.org/confluence/display/solr/Near+Real+Time+Searching > > > On Mon, Mar 31, 2014 at 3:57 PM, elisabeth benoit < > elisaelisael...@gmail.com > > wrote: > > > Hello, > > > > 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? > > > > > > Elisabeth > > > > > > -- > Dmitry > Blog: http://dmitrykan.blogspot.com > Twitter: http://twitter.com/dmitrykan >
