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From "Sateesh Chodapuneedi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-9698) Attaching and Detaching volume over the time degrades performance of storage operations
Date Thu, 22 Dec 2016 10:04:58 GMT
Sateesh Chodapuneedi created CLOUDSTACK-9698:
------------------------------------------------

             Summary: Attaching and Detaching volume over the time degrades performance of
storage operations
                 Key: CLOUDSTACK-9698
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9698
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: VMware
    Affects Versions: 4.9.0.1
         Environment: ACS 4.9 branch commit a0e36b73aebe43bfe6bec3ef8f53e8cb99ecbc32
vSphere 5.5
            Reporter: Sateesh Chodapuneedi
            Assignee: Sateesh Chodapuneedi
             Fix For: 4.9.1.0


Issue
====
Observed significant performance degradation for volume attach/detach operations and other
storage operations. 

In the storage operations that were slow, keen observation shows that maximum time was spent
searching for volume on datastore, in that case the attempted storage operation was volume
deletion. The time taken for search was shot up due to large number of empty folder accumulated
over time due to a bug in detach volume logic. We should ensure avoid leaking empty folder
while detaching volume. 



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