Hi Michael , SPM - http://sematext.com/spm will help. It can monitor all SOLR and JVM metrics and alert you when their values cross thresholds or become abnormal. In your case I'd first look at the JVM metrics - memory pools and their utilization. Heartbeat alert will notify you when your server(s) become unresponsive without you having to ping them. Solr logs will also likely have clues.
Otis > On Mar 28, 2015, at 09:45, Michael Bakonyi <m.bako...@civit.de> wrote: > > Hi, > > we were using Solr for about 3 months without problems until a few days ago > it crashed one time and we don't know why. After a restart everything was > fine again but we want to be better prepared the next time this could happen. > So I'd like to know what's the best way to monitor a single Solr-instance and > what logging-configuration you think is useful for this kind of monitoring. > Maybe there's a possibility to automatically restart Solr after it crashed + > to see in detail in the logs what happend right before the crash ..? > > Can you give me any hints? We're using Tomcat 6.X with Solr 4.8.X > > Cheers, > Michael
