What exactly does Solr do when it receives a new Index? How does it keep serving while performing the updates? It seems that the part that causes the slowdown is this transition.
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-tp20452835p21588779.html Sent from the Solr - User mailing list archive at Nabble.com.
