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Roxie response slow, lot's of errors in log

Questions related to node architecture, redundancy and system monitoring

Wed Dec 03, 2014 8:34 am Change Time Zone

Dear big guys,
Today we found roxie response is very slow, and a slave node is down, so we checked roxie.log and found lot's of errors about "Roxie slave received request for unregistered query".
Is it caused by code bug, or incorrect cluster configuration, lease give some ideas on how to read and fix it, thanks.
Roxie log is attached, I just keep the log tail because of upload size limitation.
BR,
Kevin
Attachments
roxie.7z
roxie slave log
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kevinLv
 
Posts: 11
Joined: Thu Aug 15, 2013 3:20 am

Wed Dec 03, 2014 7:42 pm Change Time Zone

The [unregistered query] error is usually caused when the Roxie is getting a new data package deployment.

I think its related to some nodes having Roxie up and responding to requests while other nodes are not yet responding. When we first started using OSS some people were running the "for" loop to start the cluster sequentially instead of concurrently. We received these errors when we started Roxie every time like that. Once we began running startup concurrently on every node we stopped getting these errors on startup. Since the deployment doesn’t finish at the same time on every node you can get these errors after almost every deployment.

Try stopping and restarting the cluster concurrently.

Bob
bforeman
Community Advisory Board Member
Community Advisory Board Member
 
Posts: 1005
Joined: Wed Jun 29, 2011 7:13 pm

Thu Dec 04, 2014 6:23 am Change Time Zone

Thanks bforeman , Your post addressed why so many error message raised, yesterday this slave node is down automatically, but master node is alive.
Could you please help find the reason why his slave node automatically shut down several times a day from attached log? Our roxie cluster has 1 master and only 1 slave, it's in production environment, so often shut down is a big risk for us.
kevinLv
 
Posts: 11
Joined: Thu Aug 15, 2013 3:20 am


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