Moshe, if you take a thread dump while a particular query stuck (via jstack of in SolrAdmin tab), it may explain where exactly it's stalled, just check the longest stack trace. FWIW, in 4.x timeallowed is checked only while documents are collected, and in 5 it's also checked during query expansion (see http://lucidworks.com/blog/solr-5-0/ now cut-offs requests <https://issues.apache.org/jira/browse/SOLR-5986> during the query-expansion stage as well ). however I'm not sure it has place (long query expansion) with hon-synonyms.
On Wed, Feb 25, 2015 at 3:21 PM, Moshe Recanati <mos...@kmslh.com> wrote: > Hi Shawn, > We checked this option and it didn't solve our problem. > We're using https://github.com/healthonnet/hon-lucene-synonyms for query > based synonyms. > While running query with high number of words that have high number of > synonyms the query got stuck and solr memory is exhausted. > We tried to use this parameter suggested by you however it didn't stop the > query and solve the issue. > > Please let me know if there is other option to tackle it. Today it might > be high number of words that cause the issue and tomorrow it might be other > something wrong. We can't rely only on user input check. > > Thank you in advance. > > > Regards, > Moshe Recanati > SVP Engineering > Office + 972-73-2617564 > Mobile + 972-52-6194481 > Skype : recanati > > More at: www.kmslh.com | LinkedIn | FB > > > -----Original Message----- > From: Shawn Heisey [mailto:apa...@elyograg.org] > Sent: Monday, February 23, 2015 5:49 PM > To: solr-user@lucene.apache.org > Subject: Re: Stop solr query > > On 2/23/2015 7:23 AM, Moshe Recanati wrote: > > Recently there were some scenarios in which queries that user sent to > > solr got stuck and increased our solr heap. > > > > Is there any option to kill or timeout query that wasn't returned from > > solr by external command? > > > > The best thing you can do is examine all user input and stop such queries > before they execute, especially if they are the kind of query that will > cause your heap to grow out of control. > > The "timeAllowed" parameter can abort a query that takes too long in > certain phases of the query. In recent months, Solr has been modified so > that timeAllowed will take effect during more query phases. It is not a > perfect solution, but it can be better than nothing. > > http://wiki.apache.org/solr/CommonQueryParameters#timeAllowed > > Be aware that sometimes legitimate queries will be slow, and using > timeAllowed may cause those queries to fail. > > Thanks, > Shawn > > -- Sincerely yours Mikhail Khludnev Principal Engineer, Grid Dynamics <http://www.griddynamics.com> <mkhlud...@griddynamics.com>
