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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-8762) Check KVM disk files for activity before starting VM
Date Tue, 01 Sep 2015 08:59:46 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-8762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14725009#comment-14725009
] 

ASF GitHub Bot commented on CLOUDSTACK-8762:
--------------------------------------------

Github user miguelaferreira commented on the pull request:

    https://github.com/apache/cloudstack/pull/754#issuecomment-136640381
  
    When I build the entire project mvn always gets stuck running unit tests of some project
(not always the same).
    I don't want to keep digging any further as this is not master. 
    
    I've build and unit-tested the three modules this PR touches:
    ```
    mvn clean install -pl :cloud-agent
    ...
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD SUCCESS
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 12.377s
    [INFO] Finished at: Tue Sep 01 08:55:15 GMT 2015
    [INFO] Final Memory: 40M/239M
    [INFO] ------------------------------------------------------------------------
    
    mvn clean install -pl :cloud-plugin-hypervisor-kvm
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD SUCCESS
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 21.559s
    [INFO] Finished at: Tue Sep 01 08:56:00 GMT 2015
    [INFO] Final Memory: 40M/244M
    [INFO] ------------------------------------------------------------------------
    
     mvn clean install -pl :cloud-utils
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD SUCCESS
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 32.421s
    [INFO] Finished at: Tue Sep 01 08:57:19 GMT 2015
    [INFO] Final Memory: 39M/219M
    [INFO] ------------------------------------------------------------------------
    ```


> Check KVM disk files for activity before starting VM
> ----------------------------------------------------
>
>                 Key: CLOUDSTACK-8762
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8762
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>            Reporter: Rohit Yadav
>            Assignee: Rohit Yadav
>             Fix For: 4.5.3, 4.6.0
>
>
> KVM hosts have real issue with fencing when storage are accessible by multiple hosts
such as in the case of NFS, in which case there is a possibility of qcow2 disks being accessed
by multiple hosts causing disk corruptions. The aim of this ticket is to explore ways to delay
starting a VM if the qcow2 disks/files are still being accessed.



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