Hi Yonik, There are a lot of logistics involved with re-indexing and naturally upgrading Solr. I was hoping that there is an easier alternative since this is only a single back end script that is having problems.
Is there any room for improvement with tweaking GC params? On Thu, Apr 28, 2016 at 12:06 PM, Yonik Seeley <ysee...@gmail.com> wrote: > On Thu, Apr 28, 2016 at 11:50 AM, Nick Vasilyev > <nick.vasily...@gmail.com> wrote: > > mmfr_exact is a string field. key_phrases is a multivalued string field. > > One guess is that top-level field caches (and UnInvertedField use) > were removed in > https://issues.apache.org/jira/browse/LUCENE-5666 > > While this is better for NRT (a quickly changing index), it's worse in > CPU, and can be worse in memory overhead for very static indexes. > > Multi-valued string faceting was hit hardest: > https://issues.apache.org/jira/browse/SOLR-8096 > Although I only measured the CPU impact, and not memory. > > The 4.x method of faceting was restored as part of > https://issues.apache.org/jira/browse/SOLR-8466 > > If this is the issue, you can: > - try reindexing with docValues... that should solve memory issues at > the expense of some speed > - upgrade to a more recent Solr version and use facet.method=uif for > your multi-valued string fields > > -Yonik >
