Tim: Yeah, this doesn't make much sense to me either since, as you say, you should be seeing some metrics upon occasion. But do note that the underlying cache only gets filled when getting documents to return in query results, since there's no autowarming going on it may come and go.
But you can test this pretty quickly by lengthening your autocommit interval or just not indexing anything for a while, then run a bunch of queries and look at your cache stats. That'll at least tell you whether it works at all. You'll have to have hard commits turned off (or openSearcher set to 'false') for that check too. Best Erick On Sat, Jun 29, 2013 at 2:48 PM, Vaillancourt, Tim <tvaillanco...@ea.com>wrote: > Yes, we are softCommit'ing every 1000ms, but that should be enough time to > see metrics though, right? For example, I still get non-cumulative metrics > from the other caches (which are also throw away). I've also curl/sampled > enough that I probably should have seen a value by now. > > If anyone else can reproduce this on 4.3.1 I will feel less crazy :). > > Cheers, > > Tim > > -----Original Message----- > From: Erick Erickson [mailto:erickerick...@gmail.com] > Sent: Saturday, June 29, 2013 10:13 AM > To: solr-user@lucene.apache.org > Subject: Re: documentCache not used in 4.3.1? > > It's especially weird that the hit ratio is so high and you're not seeing > anything in the cache. Are you perhaps soft committing frequently? Soft > commits throw away all the top-level caches including documentCache I > think.... > > Erick > > > On Fri, Jun 28, 2013 at 7:23 PM, Tim Vaillancourt <t...@elementspace.com > >wrote: > > > Thanks Otis, > > > > Yeah I realized after sending my e-mail that doc cache does not warm, > > however I'm still lost on why there are no other metrics. > > > > Thanks! > > > > Tim > > > > > > On 28 June 2013 16:22, Otis Gospodnetic <otis.gospodne...@gmail.com> > > wrote: > > > > > Hi Tim, > > > > > > Not sure about the zeros in 4.3.1, but in SPM we see all these > > > numbers are non-0, though I haven't had the chance to confirm with > Solr 4.3.1. > > > > > > Note that you can't really autowarm document cache... > > > > > > Otis > > > -- > > > Solr & ElasticSearch Support -- http://sematext.com/ Performance > > > Monitoring -- http://sematext.com/spm > > > > > > > > > > > > On Fri, Jun 28, 2013 at 7:14 PM, Tim Vaillancourt > > > <t...@elementspace.com> > > > wrote: > > > > Hey guys, > > > > > > > > This has to be a stupid question/I must be doing something wrong, > > > > but > > > after > > > > frequent load testing with documentCache enabled under Solr 4.3.1 > > > > with autoWarmCount=150, I'm noticing that my documentCache metrics > > > > are > > always > > > > zero for non-cumlative. > > > > > > > > At first I thought my commit rate is fast enough I just never see > > > > the non-cumlative result, but after 100s of samples I still always > > > > get zero values. > > > > > > > > Here is the current output of my documentCache from Solr's admin > > > > for 1 > > > core: > > > > > > > > " > > > > > > > > - documentCache< > > > > > http://localhost:8983/solr/#/channels_shard1_replica2/plugins/cache?en > > try=documentCache > > > > > > > > - class:org.apache.solr.search.LRUCache > > > > - version:1.0 > > > > - description:LRU Cache(maxSize=512, initialSize=512, > > > > autowarmCount=150, regenerator=null) > > > > - src:$URL: https:/ > > > > /svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_3/ > > > > solr/core/src/java/org/apache/solr/search/LRUCache.java< > > > > > https://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_3/s > > olr/core/src/java/org/apache/solr/search/LRUCache.java > > > >$ > > > > - stats: > > > > - lookups:0 > > > > - hits:0 > > > > - hitratio:0.00 > > > > - inserts:0 > > > > - evictions:0 > > > > - size:0 > > > > - warmupTime:0 > > > > - cumulative_lookups:65198986 > > > > - cumulative_hits:63075669 > > > > - cumulative_hitratio:0.96 > > > > - cumulative_inserts:2123317 > > > > - cumulative_evictions:1010262 > > > > " > > > > > > > > The cumulative values seem to rise, suggesting doc cache is > > > > working, > > but > > > at > > > > the same time it seems I never see non-cumlative metrics, most > > > importantly > > > > warmupTime. > > > > > > > > Am I doing something wrong, is this normal/by-design, or is there > > > > an > > > issue > > > > here? > > > > > > > > Thanks for helping with my silly question! Have a good weekend, > > > > > > > > Tim > > > > > >
