Just what it says. Solr/Lucene like lots of file handles, I regularly see several thousand. If you run out of file handles Solr stops working.
Ditto processes. Solr in particular spawns a lot of threads, particularly when handling many incoming requests through Jetty. If you exceed the limit, requests fail. The comments about solr.in.sh are only if you want to stop the warning. To really fix the underlying issue you need to talk to your system administrator and up the ulimit values. This is a system-level operation, not something configured in Solr. Best, Erick On Wed, May 2, 2018 at 4:52 AM, Agarwal, Monica (Nokia - IN/Bangalore) <monica.agar...@nokia.com> wrote: > Hi , > > I am trying to upgrade solr from 7.1.0 to 7.3.0 . > > While trying to start the solr process the below warnings are observed: > > *** [WARN] *** Your open file limit is currently 1024. > It should be set to 65000 to avoid operational disruption. > If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false > in your profile or solr.in.sh > *** [WARN] *** Your Max Limit is currently 1024. > It should be set to 65000 to avoid operational disruption. > If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false > in your profile or solr.in.sh > > Could anyone of you help me in understanding these warnings if it could lead > to some issues. > Also if I need to do any configuration changes in solr.in.sh file. > > Regards, > Monica > >
