> My solr installation has been running fine for a few weeks but now > after a server reboot it starts and runs for a few seconds, then stops > responding. I don't see any errors in the logfiles, apart from > snapinstaller not being able to issue a commit. Also, the process is > using 100% cpu and stops responding to http requests (admin interface > and queries).
Okay, some more happened after I sent this email. About 3 hours after the reboot solr started running normally again. Then I rebooted it to see if I could reproduce it. This time solr remained in the not-responding state for about 4 hours but I did not wait longer to see if it would come back.
- check what got changed after the server reboot... anything?
Nothing had been changed on the server.
Part of the fix for this has recently been committed into Lucene (multiple threads won't generate the same FieldCache entry).
Has that been added to solr yet? I'm running solr-2006-11-20.
To see if this is your problem, restart the server and make sure no traffic goes to it. Then run some queries of the same type that will be hitting it to warm it up, then turn on normal traffic.
Okay, I did that. Shut off traffic to the server, restarted solr, ran a few queries against it, then turned traffic back on, and it's running fine now. So maybe the initial flood of requests has something to do with it? thanks, Kevin
