[ 
https://issues.apache.org/jira/browse/CLOUDSTACK-118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13467313#comment-13467313
 ] 

Alex Huang commented on CLOUDSTACK-118:
---------------------------------------

Prashant,

>From this exception, it looks like the problem has to do with the XenServer 
>pool.  It is having trouble to migrate VMs off.  That's why the host went into 
>errorinmaintenance state.  Please reinstall the xenservers as well and retry 
>this.


2012-09-26 03:03:33,726 WARN  [xen.resource.CitrixResourceBase] 
(DirectAgent-116:null) Catch Exception 
com.cloud.utils.exception.CloudRuntimeException: Migration failed due to 
com.cloud.utils.exception.CloudRuntimeException: Unable to migrate VM(s-3-VM) 
from host(10cb6099-2ff1-48ee-9901-b519636c4f4a) due to Task failed! Task 
record:                 uuid: a6f653da-1c7f-91e7-d657-eb7eb7bfe35f
           nameLabel: Async.VM.pool_migrate
     nameDescription: 
   allowedOperations: []
   currentOperations: {}
             created: Wed Sep 26 08:34:49 EDT 2012
            finished: Wed Sep 26 08:34:49 EDT 2012
              status: FAILURE
          residentOn: com.xensource.xenapi.Host@9d5af48a
            progress: 1.0
                type: <none/>
              result: 
           errorInfo: [VM_REQUIRES_NETWORK, 
OpaqueRef:0868caeb-de65-daf8-cd31-d51661fba707, 
OpaqueRef:f2922672-9b02-dea5-2388-420a60b4bdc0]
         otherConfig: {}
           subtaskOf: com.xensource.xenapi.Task@aaf13f6f
            subtasks: []

com.cloud.utils.exception.CloudRuntimeException: Unable to migrate VM(s-3-VM) 
from host(10cb6099-2ff1-48ee-9901-b519636c4f4a) due to Task failed! Task 
record:                 uuid: a6f653da-1c7f-91e7-d657-eb7eb7bfe35f
           nameLabel: Async.VM.pool_migrate
     nameDescription: 
   allowedOperations: []
   currentOperations: {}
             created: Wed Sep 26 08:34:49 EDT 2012
            finished: Wed Sep 26 08:34:49 EDT 2012
              status: FAILURE
          residentOn: com.xensource.xenapi.Host@9d5af48a
            progress: 1.0
                type: <none/>
              result: 
           errorInfo: [VM_REQUIRES_NETWORK, 
OpaqueRef:0868caeb-de65-daf8-cd31-d51661fba707, 
OpaqueRef:f2922672-9b02-dea5-2388-420a60b4bdc0]
         otherConfig: {}
           subtaskOf: com.xensource.xenapi.Task@aaf13f6f
            subtasks: []

        at 
com.cloud.hypervisor.xen.resource.CitrixResourceBase.migrateVM(CitrixResourceBase.java:3303)
        at 
com.cloud.hypervisor.xen.resource.CitrixResourceBase.execute(CitrixResourceBase.java:2845)
        at 
com.cloud.hypervisor.xen.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:451)
        at 
com.cloud.hypervisor.xen.resource.XenServer56Resource.executeRequest(XenServer56Resource.java:73)
        at 
com.cloud.agent.manager.DirectAgentAttache$Task.run(DirectAgentAttache.java:191)
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:165)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:266)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:679)
                
> Status of host resorce  stuck in "ErrorInMaintenance"
> -----------------------------------------------------
>
>                 Key: CLOUDSTACK-118
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-118
>             Project: CloudStack
>          Issue Type: Bug
>          Components: Management Server
>    Affects Versions: pre-4.0.0
>         Environment: XS 6.0.2
> MS Rhl6.3
> Git Revision: 03df2fa9dd45c938f72cd1866044b09d1b0cc978
> Git URL: https://git-wip-us.apache.org/repos/asf/incubator-cloudstack.git
>            Reporter: prashant kumar mishra
>            Assignee: Abhinandan Prateek
>            Priority: Blocker
>             Fix For: 4.1.0
>
>         Attachments: access_log.2012-09-17.txt, access_log.2012-09-26.txt, 
> api-server.log, api-server.log, catalina.2012-09-26.log, catalina.out, 
> cloud-backup.dmp, management-server.log, management-server.log, 
> management-server.log, management-server.log, 
> management-server.log.2012-09-16.gz, screenshot-1.jpg, screenshot-2.jpg
>
>
> In a cluster of 2 host if  you try to put master in maintenance mode 
> ,resource state will be stuck in "ErrorInMaintenance"   
> Step to reproduce:
> -----------------------------
> ------------------------------
> 1-Create an advance zone->pod->cluster.
> 2-Add 2 hosts in same cluster.
> 3-Deploy a HA enabled VM .
> 4-put host(one which is pool master ) in maintenance mode .
> Expected result : 
> --------------------------
> --------------------------
> status =UP;
> resource status =maintenance  
> Actual result:
> ------------------------
> ------------------------
> status=UP;
> resource state=ErrorInMaintenance

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