[jira] [Updated] (STRATOS-1430) Stratos 4.1: Application fails to un-deploy completely under certain circumstances

["Martin Eppel (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STRATOS-1430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Eppel updated STRATOS-1430:
----------------------------------
    Attachment: wso2carbon.zip

>  Stratos 4.1: Application fails to un-deploy completely under certain circumstances
> -----------------------------------------------------------------------------------
>
>                 Key: STRATOS-1430
>                 URL: https://issues.apache.org/jira/browse/STRATOS-1430
>             Project: Stratos
>          Issue Type: Bug
>          Components: Autoscaler
>    Affects Versions: 4.1.0 RC2
>            Reporter: Martin Eppel
>         Attachments: wso2carbon.zip
>
>
> •	After the “Application undeployment process started” is started, there is a likelihood that (a few) VMs are still launched – I suspect this is due to some race condition between “Application undeployment process started” and the “autoscaler”. 
> •	All Vms which were launched before the “Application undeployment process started” get terminated as part of the undeployment process.
> •	Vms which were launched after “Application undeployment process started” eventually get moved to obsolete / pending state and cleaned up, this can take up to 15- 20 minutes.
> •	The application never gets completely removed, 
> •	The following exception is consistently observed:
> ID: [0] [STRATOS] [2015-06-05 20:47:07,237]  WARN {org.apache.stratos.common.concurrent.locks.ReadWriteLock} -  System warning! Trying to release a lock which has not been taken by the same thread: [lock-name] application-holder [thread-id] 114 [thread-name] pool-24-thread-2
> TID: [0] [STRATOS] [2015-06-05 20:47:07,237] ERROR {org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator} -  Failed to retrieve topology event message
> org.apache.stratos.common.exception.InvalidLockRequestedException: System error, cannot acquire a write lock while having a read lock on the same thread: [lock-name] application-holder [thread-id] 114 [thread-name] pool-24-thread-2
> 	at org.apache.stratos.common.concurrent.locks.ReadWriteLock.acquireWriteLock(ReadWriteLock.java:114)
> 	at org.apache.stratos.autoscaler.applications.ApplicationHolder.acquireWriteLock(ApplicationHolder.java:60)
> •	
> see also email thread (on dev list): Testing Stratos 4.1: Application undeployment: application fails to undeploy (nested grouping, group scaling)



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