Hello Team,

Recently, I have upgraded the XenServer pool from 7.0 to XenServer 7.1 under 
ACS 4.15. After that I’m unable to start any router. It’s giving below error.


2021-02-23 01:53:07,661 DEBUG [c.c.h.x.r.CitrixResourceBase] 
(DirectAgent-132:ctx-b70f66c3) (logid:9f07ddd0) Creating VIF for r-39-VM on nic 
[Nic:Control-169.254.2.193-null]
2021-02-23 01:53:07,677 DEBUG [c.c.h.x.r.CitrixResourceBase] 
(DirectAgent-132:ctx-b70f66c3) (logid:9f07ddd0) already have a vif on dom0 for 
link local network
2021-02-23 01:53:07,695 WARN  [c.c.h.x.r.CitrixResourceBase] 
(DirectAgent-132:ctx-b70f66c3) (logid:9f07ddd0) callHostPlugin failed for cmd: 
setLinkLocalIP with args brName: xapi1,  due to The requested plugin could not 
be found.
2021-02-23 01:53:07,696 WARN  [c.c.h.x.r.w.x.CitrixStartCommandWrapper] 
(DirectAgent-132:ctx-b70f66c3) (logid:9f07ddd0) Catch Exception: class 
com.cloud.utils.exception.CloudRuntimeException due to 
com.cloud.utils.exception.CloudRuntimeException: callHostPlugin failed for cmd: 
setLinkLocalIP with args brName: xapi1,  due to The requested plugin could not 
be found.
com.cloud.utils.exception.CloudRuntimeException: callHostPlugin failed for cmd: 
setLinkLocalIP with args brName: xapi1,  due to The requested plugin could not 
be found.
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.callHostPlugin(CitrixResourceBase.java:364)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.setupLinkLocalNetwork(CitrixResourceBase.java:4832)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNativeNetworkForTraffic(CitrixResourceBase.java:2786)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2805)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.createVif(CitrixResourceBase.java:1259)
        at 
com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixStartCommandWrapper.execute(CitrixStartCommandWrapper.java:105)
        at 
com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixStartCommandWrapper.execute(CitrixStartCommandWrapper.java:54)
        at 
com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1759)
        at 
com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:315)
        at 
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:48)
        at 
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:55)
        at 
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:102)
        at 
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:52)
        at 
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:45)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:834)
2021-02-23 01:53:07,696 WARN  [c.c.h.x.r.CitrixResourceBase] 
(DirectAgent-132:ctx-b70f66c3) (logid:9f07ddd0) Unable to start r-39-VM due to 
com.cloud.utils.exception.CloudRuntimeException: callHostPlugin failed for cmd: 
setLinkLocalIP with args brName: xapi1,  due to The requested plugin could not 
be found.
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.callHostPlugin(CitrixResourceBase.java:364)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.setupLinkLocalNetwork(CitrixResourceBase.java:4832)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNativeNetworkForTraffic(CitrixResourceBase.java:2786)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.getNetwork(CitrixResourceBase.java:2805)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.createVif(CitrixResourceBase.java:1259)
        at 
com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixStartCommandWrapper.execute(CitrixStartCommandWrapper.java:105)
        at 
com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixStartCommandWrapper.execute(CitrixStartCommandWrapper.java:54)
        at 
com.cloud.hypervisor.xenserver.resource.wrapper.xenbase.CitrixRequestWrapper.execute(CitrixRequestWrapper.java:122)
        at 
com.cloud.hypervisor.xenserver.resource.CitrixResourceBase.executeRequest(CitrixResourceBase.java:1759)
        at 
com.cloud.agent.manager.DirectAgentAttache$Task.runInContext(DirectAgentAttache.java:315)
        at 
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:48)
        at 
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:55)
        at 
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:102)
        at 
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:52)
        at 
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:45)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:834)
2021-02-23 01:53:07,709 WARN  [c.c.h.x.r.CitrixResourceBase] 
(DirectAgent-132:ctx-b70f66c3) (logid:9f07ddd0) Unable to clean up VBD due to 
You gave an invalid object reference.  The object may have recently been 
deleted.  The class parameter gives the type of reference given, and the handle 
parameter echoes the bad value given.


Any idea on above Error.?

Vivek Kumar
Manager - Cloud & DevOps 
IndiQus Technologies
24*7  O +91 11 4055 1411  |   M +91 7503460090 
www.indiqus.com <http://indiqus.com/>

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