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From "Sheng Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-6218) VR commands need to be serialized in VR resource
Date Mon, 10 Mar 2014 19:50:55 GMT
Sheng Yang created CLOUDSTACK-6218:
--------------------------------------

             Summary: VR commands need to be serialized in VR resource
                 Key: CLOUDSTACK-6218
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6218
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: Virtual Router
    Affects Versions: 4.4.0
            Reporter: Sheng Yang
            Assignee: Sheng Yang
             Fix For: 4.4.0


In very large scale parallel deployment, multiple commands executed at VR would result in
VR itself's lock time out, since the later commands would need to wait longer and longer for
execution.

This fix would put a lock in VR resource part, and make sure every commands to VR would be
queued before executed in VR, prevent timeout in the VR. However, the timeout would still
possible with agent manager level, if VR resource has too many commands to deal with and cannot
give back answer in time. But this timeout can be adjusted from mgmt server side, so the problem
is mitigated. 



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