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https://issues.apache.org/jira/browse/CLOUDSTACK-6407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Damodar Reddy T resolved CLOUDSTACK-6407.
-----------------------------------------
Resolution: Fixed
> NPE while collecting VM statistics
> -----------------------------------
>
> Key: CLOUDSTACK-6407
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6407
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server
> Affects Versions: 4.4.0
> Reporter: Sailaja Mada
> Assignee: Damodar Reddy T
> Fix For: 4.4.0
>
> Attachments: management-server.log
>
>
> Setup : 4.4 with XenServer 6.2.5
> 1. Install and configure Adv zone using XenServer 6.2.5
> 2. Deployed 2 Windows (8 and 2012) VM's using Domain user account .
> Observed NPE's while collecting VM statistics in the Management server
> log(Attached)
> 2014-04-15 00:00:49,574 DEBUG [c.c.s.StatsCollector]
> (StatsCollector-4:ctx-2e085056) VmStatsCollector is running...
> 2014-04-15 00:00:49,588 DEBUG [c.c.a.m.DirectAgentAttache]
> (DirectAgent-69:ctx-9a19b721) Seq 1-6476457739135503930: Executing request
> 2014-04-15 00:00:49,618 WARN [c.c.a.m.DirectAgentAttache]
> (DirectAgent-69:ctx-9a19b721) Seq 1-6476457739135503930: Exception Caught
> while executing command
> java.lang.NullPointerException
> 2014-04-15 00:00:49,619 DEBUG [c.c.a.m.DirectAgentAttache]
> (DirectAgent-69:ctx-9a19b721) Seq 1-6476457739135503930: Response Received:
> 2014-04-15 00:00:49,619 DEBUG [c.c.a.t.Request] (DirectAgent-69:ctx-9a19b721)
> Seq 1-6476457739135503930: Processing: { Ans: , MgmtId: 55355881446856, via:
> 1, Ver: v1, Flags: 10,
> [{"com.cloud.agent.api.Answer":{"result":false,"details":"java.lang.NullPointerException","wait":0}}]
> }
> 2014-04-15 00:00:49,619 DEBUG [c.c.a.t.Request]
> (StatsCollector-4:ctx-2e085056) Seq 1-6476457739135503930: Received: { Ans:
> , MgmtId: 55355881446856, via: 1, Ver: v1, Flags: 10, { Answer } }
> 2014-04-15 00:00:49,619 DEBUG [c.c.a.m.AgentManagerImpl]
> (StatsCollector-4:ctx-2e085056) Details from executing class
> com.cloud.agent.api.GetVmStatsCommand: java.lang.NullPointerException
> 2014-04-15 00:00:49,619 WARN [c.c.v.UserVmManagerImpl]
> (StatsCollector-4:ctx-2e085056) Unable to obtain VM statistics.
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