I assumed it does, based on your description. If you installed it as a service (systemd), then systemd can start the service again if it fails. (something like Restart=always in your [Service] definition).
But if it doesn’t restart automatically now, I think it’s easier to troubleshoot: just check the last logs after it crashed. Best regards, Radu https://sematext.com > On 8 Jun 2020, at 16:28, Ryan W <rya...@gmail.com> wrote: > > "If Solr auto-restarts" > > It doesn't auto-restart. Is there some auto-restart functionality? I'm > not aware of that. > > On Mon, Jun 8, 2020 at 7:10 AM Radu Gheorghe <radu.gheor...@sematext.com> > wrote: > >> Hi Ryan, >> >> If Solr auto-restarts, I suppose it's systemd doing that. When it restarts >> the Solr service, systemd should log this (maybe somethibg like: journalctl >> --no-pager | grep -i solr). >> >> Then you can go in your Solr logs and check what happened right before that >> time. Also, check system logs for what happened before Solr was restarted. >> >> Best regards, >> Radu >> >> https://sematext.com/ >> >> joi, 4 iun. 2020, 19:24 Ryan W <rya...@gmail.com> a scris: >> >>> Happened again today. Solr stopped running. Apache hasn't stopped in 10 >>> days, so this is not due to a server reboot. >>> >>> Solr is not being run with the oom-killer. And when I grep for ERROR in >>> the logs, there is nothing from today. >>> >>> On Mon, May 18, 2020 at 3:15 PM James Greene < >> ja...@jamesaustingreene.com> >>> wrote: >>> >>>> 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 >>>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>> >>>>> >>>>> >>>> >>> >>
