I usually do a combination of grepping for ERROR in solr logs and checking journalctl to see if an external program may have killed the process.
Cheers, /************************************ * James Austin Greene * www.jamesaustingreene.com * 336-lol-nerd ************************************/ On Mon, May 18, 2020 at 1:39 PM Erick Erickson <erickerick...@gmail.com> wrote: > ps aux | grep solr > > on a *.nix system will show you all the runtime parameters. > > > On May 18, 2020, at 12:46 PM, Ryan W <rya...@gmail.com> wrote: > > > > Is there a config file containing the start params? I run solr like... > > > > bin/solr start > > > > I have not seen anything in the logs that seems informative. When I grep > in > > the logs directory for 'memory', I see nothing besides a couple entries > > like... > > > > 2020-05-14 13:05:56.155 INFO (main) [ ] > o.a.s.h.a.MetricsHistoryHandler > > No .system collection, keeping metrics history in memory. > > > > I don't know what that entry means, though the date does roughly coincide > > with the last time solr stopped running. > > > > Thank you. > > > > > > On Mon, May 18, 2020 at 12:00 PM Erick Erickson <erickerick...@gmail.com > > > > wrote: > > > >> Probably, but check that you are running with the oom-killer, it'll be > in > >> your start params. > >> > >> But absent that, something external will be the culprit, Solr doesn't > stop > >> by itself. Do look at the Solr log once things stop, it should show if > >> someone or something stopped it. > >> > >> On Mon, May 18, 2020, 10:43 Ryan W <rya...@gmail.com> wrote: > >> > >>> I don't see any log file with "oom" in the file name. Does that mean > >> there > >>> hasn't been an out-of-memory issue? Thanks. > >>> > >>> On Thu, May 14, 2020 at 10:05 AM James Greene < > >> ja...@jamesaustingreene.com > >>>> > >>> wrote: > >>> > >>>> Check the log for for an OOM crash. Fatal exceptions will be in the > >> main > >>>> solr log and out of memory errors will be in their own -oom log. > >>>> > >>>> I've encountered quite a few solr crashes and usually it's when > >> there's a > >>>> threshold of concurrent users and/or indexing happening. > >>>> > >>>> > >>>> > >>>> On Thu, May 14, 2020, 9:23 AM Ryan W <rya...@gmail.com> wrote: > >>>> > >>>>> Hi all, > >>>>> > >>>>> I manage a site where solr has stopped running a couple times in the > >>> past > >>>>> week. The server hasn't been rebooted, so that's not the reason. > >> What > >>>> else > >>>>> causes solr to stop running? How can I investigate why this is > >>>> happening? > >>>>> > >>>>> Thank you, > >>>>> Ryan > >>>>> > >>>> > >>> > >> > >