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From ilya musayev <>
Subject [SOLUTION] CloudStack 4.3.1 some VMs would get stopped continuously
Date Wed, 14 Jan 2015 19:14:55 GMT
I've seen an issue where cloudstack would stop some VMs after they have 
been started. Posting the solution for whoever comes across this problem.

I've noticed following pattern:

VM was trying to be migrated to another host while another thread would 
stop the VM within 10 minutes of the start time.

The solution was to look for a message in the log that has 
"(981,VmWorkJobQueue, 2371) is reaching concurrency limit 1" continuously.

Delete the reference id of "2371" from cloud.sync_queue_item
Delete the reference id of "981" from cloud.sync_queue

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