RE: solr stops running periodically
By that I mean that the java/tomcat process just disappears. I had similar problem when I started Tomcat via SSH, and then I improperly closed SSH without exit command. In some cases (OutOfMemory) memory is not enough to generate log (or CPU can be overloaded by Garbage Collector to such extent that you will have to wait few days until LOG will be generated) - but process cant' disappear... Process can't simply disappear... if it is JVM crash you should see dump file (you may need to set specific option for JVM to generate dump file in case of crash) -Original Message- From: athir nuaimi [mailto:at...@nuaim.com] Sent: November-15-09 1:46 PM To: solr-user@lucene.apache.org Subject: solr stops running periodically We have 4 machines running solr. On one of the machines, every 2-3 days solr stops running. By that I mean that the java/tomcat process just disappears. If I look at the catalina logs, I see normal log entries and then nothing. There is no shutdown messages like you would normally see if you sent a SIGTERM to the process. Obviously this is a problem. I''m new to solr/java so if there are more diagnostic things I can do I'd appreciate any tips/advice. thanks in advance Athir
Re: solr stops running periodically
Have you looked in other logs, like your syslogs? I've never seen Solr/Tomcat just disappear w/o so much as a blip. I'd think if a process just died from an error condition there would be some note of it somewhere. I'd try to find some other events taking place at that time which might give a hint. On Nov 15, 2009, at 1:45 PM, athir nuaimi wrote: We have 4 machines running solr. On one of the machines, every 2-3 days solr stops running. By that I mean that the java/tomcat process just disappears. If I look at the catalina logs, I see normal log entries and then nothing. There is no shutdown messages like you would normally see if you sent a SIGTERM to the process. Obviously this is a problem. I''m new to solr/java so if there are more diagnostic things I can do I'd appreciate any tips/advice. thanks in advance Athir
Re: solr stops running periodically
Look for the HotSpot dump files that Sun's Java leaves on disk when it dies. I think their names start with hs. Luckily, I don't have any of them handy to tell you the exact name pattern. Otis -- Sematext is hiring -- http://sematext.com/about/jobs.html?mls Lucene, Solr, Nutch, Katta, Hadoop, HBase, UIMA, NLP, NER, IR - Original Message From: Grant Ingersoll gsing...@apache.org To: solr-user@lucene.apache.org Sent: Sun, November 15, 2009 8:15:47 PM Subject: Re: solr stops running periodically Have you looked in other logs, like your syslogs? I've never seen Solr/Tomcat just disappear w/o so much as a blip. I'd think if a process just died from an error condition there would be some note of it somewhere. I'd try to find some other events taking place at that time which might give a hint. On Nov 15, 2009, at 1:45 PM, athir nuaimi wrote: We have 4 machines running solr. On one of the machines, every 2-3 days solr stops running. By that I mean that the java/tomcat process just disappears. If I look at the catalina logs, I see normal log entries and then nothing. There is no shutdown messages like you would normally see if you sent a SIGTERM to the process. Obviously this is a problem. I''m new to solr/java so if there are more diagnostic things I can do I'd appreciate any tips/advice. thanks in advance Athir
