GitHub user TheKunalSen added a comment to the discussion: After reboot host
connection issue
```
2026-06-17 12:21:23,032 DEBUG [c.c.a.m.ClusteredAgentManagerImpl]
(AgentConnectTaskPool-183:[ctx-f2d78e1f]) (logid:a22fdf45) Sending Disconnect
to listener: com.cloud.hypervisor.kvm.discoverer.LxcServerDiscoverer
2026-06-17 12:21:23,032 DEBUG [c.c.a.m.ClusteredAgentManagerImpl]
(AgentConnectTaskPool-183:[ctx-f2d78e1f]) (logid:a22fdf45) Sending Disconnect
to listener: com.cloud.hypervisor.kvm.discoverer.KvmServerDiscoverer
2026-06-17 12:21:23,032 DEBUG [c.c.a.m.ClusteredAgentManagerImpl]
(AgentConnectTaskPool-183:[ctx-f2d78e1f]) (logid:a22fdf45) [Resource state =
Disabled, Agent event = , Host = AgentDisconnected]
2026-06-17 12:21:23,034 DEBUG [c.c.a.m.ClusteredAgentManagerImpl]
(AgentConnectTaskPool-183:[ctx-f2d78e1f]) (logid:a22fdf45) Notifying other
nodes of to disconnect
2026-06-17 12:21:23,035 DEBUG [c.c.a.m.ClusteredAgentManagerImpl]
(AgentConnectTaskPool-183:[ctx-f2d78e1f]) (logid:a22fdf45) Failed to handle
host connection: com.cloud.utils.exception.CloudRuntimeException: Unable to
connect 8
at
com.cloud.agent.manager.AgentManagerImpl.notifyMonitorsOfConnection(AgentManagerImpl.java:787)
at
com.cloud.agent.manager.AgentManagerImpl.connectHostAgent(AgentManagerImpl.java:1403)
at
com.cloud.agent.manager.AgentManagerImpl.sendReadyAndGetAttache(AgentManagerImpl.java:1365)
at
com.cloud.agent.manager.AgentManagerImpl.handleConnectedAgent(AgentManagerImpl.java:1419)
at
com.cloud.agent.manager.AgentManagerImpl$HandleAgentConnectTask.runInContext(AgentManagerImpl.java:1515)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
Caused by: java.lang.NullPointerException: Cannot invoke
"org.apache.cloudstack.storage.datastore.db.StoragePoolVO.isShared()" because
"pool" is null
at
com.cloud.storage.listener.StoragePoolMonitor.processConnect(StoragePoolMonitor.java:187)
at
com.cloud.agent.manager.AgentManagerImpl.notifyMonitorsOfConnection(AgentManagerImpl.java:770)
... 12 more
2026-06-17 12:21:23,035 DEBUG [c.c.a.m.ClusteredAgentManagerImpl]
(AgentConnectTaskPool-183:[ctx-f2d78e1f]) (logid:a22fdf45) Failed to send ready
command: java.nio.channels.ClosedChannelException
at com.cloud.utils.nio.Link.send(Link.java:319)
at com.cloud.utils.nio.Link.send(Link.java:294)
at com.cloud.utils.nio.Link.send(Link.java:290)
at
com.cloud.agent.manager.AgentManagerImpl.handleConnectedAgent(AgentManagerImpl.java:1434)
at
com.cloud.agent.manager.AgentManagerImpl$HandleAgentConnectTask.runInContext(AgentManagerImpl.java:1515)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
2026-06-17 12:21:23,035 WARN [c.c.a.m.A.HandleAgentConnectTask]
(AgentConnectTaskPool-183:[ctx-f2d78e1f]) (logid:a22fdf45) Unable to create
attache for agent: Seq 0-95: { Cmd , MgmtId: -1, via: 0, Ver: v1, Flags: 1,
[{"com.cloud.agent.api.StartupRoutingCommand":{"cpuSockets":"1","cpus":"24","speed":"2100","cpuArch":"x86_64","memory":"133667360768","dom0MinMemory":"1073741824","poolSync":"false","supportsClonedVolumes":"false","caps":"hvm,snapshot","pool":"/root","hypervisorType":"KVM","hostDetails":{"Host.OS.Kernel.Version":"5.15.0-181-generic","com.cloud.network.Networks.RouterPrivateIpStrategy":"HostLocal","Host.OS.Version":"22.04","host.volume.encryption":"true","host.instance.conversion":"false","secured":"true","Host.OS":"Ubuntu"},"hostTags":[],"groupDetails":{},"gpuDevices":[],"type":"Routing","dataCenter":"3","pod":"3","cluster":"3","guid":"5cbb4794-681d-349e-8632-69348bdd67e2-LibvirtComputingResource","name":"compute3","id":"0","version":"4.22.0.1","iqn":"iqn.2004-10.com.ub
untu:01:52c55542e014","publicIpAddress":"172.16.17.205","publicNetmask":"255.255.255.0","publicMacAddress":"56:f2:7a:a7:be:54","privateIpAddress":"172.16.17.205","privateMacAddress":"56:f2:7a:a7:be:54","privateNetmask":"255.255.255.0","storageIpAddress":"172.16.17.205","storageNetmask":"255.255.255.0","storageMacAddress":"56:f2:7a:a7:be:54","resourceName":"LibvirtComputingResource","gatewayIpAddress":"172.16.17.1","msHostList":"172.16.17.201@static","connectionTransferred":"false","arch":"x86_64","wait":"0","bypassHostMaintenance":"false"}},{"com.cloud.agent.api.StartupStorageCommand":{"totalSize":"(0
bytes)
0","poolInfo":{"uuid":"d6ae99b8-ff42-479d-b4a6-50a0d1bee9ef","host":"172.16.17.205","localPath":"/var/lib/libvirt/images","hostPath":"/var/lib/libvirt/images","poolType":"Filesystem","capacityBytes":"(877.12
GB) 941800394752","availableBytes":"(860.58 GB)
924040146944"},"resourceType":"STORAGE_POOL","hostDetails":{},"type":"Storage","dataCenter":"3","pod":"3","guid":"5cbb4794-68
1d-349e-8632-69348bdd67e2-LibvirtComputingResource","name":"compute3","id":"0","version":"4.22.0.1","resourceName":"LibvirtComputingResource","msHostList":"172.16.17.201@static","connectionTransferred":"false","arch":"x86_64","wait":"0","bypassHostMaintenance":"false"}}]
}
2026-06-17 12:21:23,137 DEBUG [o.a.c.u.p.ProcessRunner] (pool-2-thread-19:[])
(logid:) Process standard output for command [/usr/bin/ipmitool -I lanplus -R 1
-v -H 172.16.17.228 -p 623 -U Administrator -P ***** chassis power status]:
[Chassis Power is on
].
2026-06-17 12:21:23,137 DEBUG [o.a.c.u.p.ProcessRunner] (pool-2-thread-19:[])
(logid:) Process standard error output command [/usr/bin/ipmitool -I lanplus -R
1 -v -H 172.16.17.228 -p 623 -U Administrator -P ***** chassis power status]:
[Running Get PICMG Properties my_addr 0x20, transit 0, target 0x20
Error response 0xc1 from Get PICMG Properities
Running Get VSO Capabilities my_addr 0x20, transit 0, target 0x20
Invalid completion code received: Invalid command
Discovered IPMB address 0x0
].
2026-06-17 12:21:23,137 DEBUG [o.a.c.o.d.i.IpmitoolOutOfBandManagementDriver]
(pool-2-thread-19:[]) (logid:) The command [/usr/bin/ipmitool -I lanplus -R 1
-v -H 172.16.17.228 -p **** -U Administrator -P **** chassis power status]
was successful and got the result [Chassis Power is on].
2026-06-17 12:21:23,151 DEBUG [o.a.c.u.p.ProcessRunner] (pool-2-thread-22:[])
(logid:) Process standard output for command [/usr/bin/ipmitool -I lanplus -R 1
-v -H 172.16.17.230 -p 623 -U Administrator -P ***** chassis power status]:
[Chassis Power is on
].
2026-06-17 12:21:23,151 DEBUG [o.a.c.u.p.ProcessRunner] (pool-2-thread-22:[])
(logid:) Process standard error output command [/usr/bin/ipmitool -I lanplus -R
1 -v -H 172.16.17.230 -p 623 -U Administrator -P ***** chassis power status]:
[Running Get PICMG Properties my_addr 0x20, transit 0, target 0x20
```
this is the management server log
@weizhouapache
please help
GitHub link:
https://github.com/apache/cloudstack/discussions/13440#discussioncomment-17338016
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