See recent post about AutoSuggest from Yonik. On Fri, Nov 7, 2014 at 12:10 PM, Erick Erickson <erickerick...@gmail.com> wrote:
> Another thing is to put in some autowarming, both > on the caches and firstSearcher and newSearcher. > These will pre-fill the caches before having new > searchers handle queries. > > Don't go overboard here, for things like filterCache > try, say, autowarm counts of 16 and work your way up. > > firstSearcher is used when you restart Solr and don't > have any caches to run autowarm on. newSearcher > is run when you commit, and presumably your caches > have entries to autowarm from. > > Try to put things that sort on fields you know you're going > to sort on, some of the facets you expect etc. > > Best, > Erick > > On Fri, Nov 7, 2014 at 8:46 AM, Toke Eskildsen <t...@statsbiblioteket.dk> > wrote: > > mizayah [miza...@gmail.com] wrote: > >> What i see is that after restart jvm usage is realy low and raise slowly > >> while system cpu ussage is high. > >> My select queries are realy slow during that time. > > > > The first searches tend to be slow while Solr fills internal caches and > the OS file cache is warmed. > > > >> After few days when jvm grab some MORE memory system drops down. > >> java settings > >> -Xmx6144m -XX:+UseConcMarkSweepGC -XX:+PrintGC -XX:+PrintGCDetails > >> I have 8GB ram > > > > I am guessing you are using spinning drives? You have 8GM RAM in your > machine. Let's say your JVM uses 3GB at the beginning and the rest of your > system 1GB. That leaves 4GB for disk cache. When the JVM grabs more memory > and increases the heap, let's say to 5GB, that leaves only 2GB for disk > cache. As Solr needs fast I/O, either in the form of fast storage or enough > free memory for OS file cache, your performance goes down. > > > > Possible solutions: > > > > 1) Set Xmx as low as practically possible, leaving as much memory as > possible for file cache > > 2) Put more RAM in the machine > > 3) Switch to SSD > > > > How large is your index? > > > > - Toke Eskildsen > -- Bill Bell billnb...@gmail.com cell 720-256-8076
