Hello, I think i tracked it further down to LUCENE-8589 or SOLR-12243:. When i leave Solr's edismax' pf parameter empty, everything runs fast. When all fields are configured for pf, the node dies.
I am now unsure whether i am on the right list, or if i should move to Solr's. Please let me know. Thanks, Markus -----Original message----- > From:Markus Jelsma <markus.jel...@openindex.io> > Sent: Friday 8th February 2019 11:08 > To: java-user@lucene.apache.org > Subject: Query-of-Death Lucene/Solr 7.6 > > Hello, > > While working on SOLR-12743, using 7.6 on two nodes and 7.2.1 on the > remaining four, we stumbled upon a situation where the 7.6 nodes quickly > succumb when a 'Query-of-Death' is issued, 7.2.1 up to 7.5 are all unaffected > (tested and confirmed). > > Following Smiley's suggestion i used Eclipse MAT to find the problem in the > heap dump i obtained, this fantastic tool revealed within minutes that a > query thread ate 65 % of all resources, in the class variables i could find > the the query, and reproduce the problem. > > The problematic query is 'dubbele dijk/rijke dijkproject in het dijktracé > eemshaven-delfzijl', on 7.6 this input produces a 40+ MB toString() output in > edismax' newFieldQuery. If the node survives it takes 2+ seconds for the > query to run (150 ms otherwise). If i disable all query time > SynonymGraphFilters it still takes a second and produces just a 9 MB > toString() for the query. > > I could not find anything like this in Jira. I did think of LUCENE-8479 and > LUCENE-8531 but they were about graphs, this problem looked related though. > > Existing issue? New bug? > > Many thanks, > Markus > > ps. in Solr i even got an 'Impossible Exception', my first! > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
