We do optimize the index before updates but we get tehse performance issues even when we pull an empty snapshot. Thus even when our update is tiny, the performance issues still happen.
Otis Gospodnetic wrote: > > This is an old and long thread, and I no longer recall what the specific > suggestions were. > My guess is this has to do with the OS cache of your index files. When > you make the large index update, that OS cache is useless (old files are > gone, new ones are in) and the OS cache has get re-warmed and this takes > time. > > Are you optimizing your index before the update? Do you *really* need to > do that? > How large is your update, what makes it big, and could you make it > smaller? > > Otis > -- > Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch > > > > ----- Original Message ---- >> From: oleg_gnatovskiy <oleg_gnatovs...@citysearch.com> >> To: solr-user@lucene.apache.org >> Sent: Tuesday, January 20, 2009 6:19:46 PM >> Subject: Re: Query Performance while updating teh index >> >> >> Hello again. It seems that we are still having these problems. Queries >> take >> as long as 20 minutes to get back to their average response time after a >> large index update, so it doesn't seem like the problem is the 12 second >> autowarm time. Are there any more suggestions for things we can try? >> Taking >> our servers out of teh loop for as long as 20 minutes is a bit of a >> hassle, >> and a risk. >> -- >> View this message in context: >> http://www.nabble.com/Query-Performance-while-updating-the-index-tp20452835p21573927.html >> Sent from the Solr - User mailing list archive at Nabble.com. > > > -- View this message in context: http://www.nabble.com/Query-Performance-while-updating-the-index-tp20452835p21611642.html Sent from the Solr - User mailing list archive at Nabble.com.
