Any tips on how I would troubleshoot this? I’ve tried downgrading libvirt and 
qemu and ca-certificates to the same version as the other functional nodes. 
That didn’t seem to help. This is obviously an ssl issue but I don’t really 
know what to do about it.

2021-12-15 18:04:14,438 INFO [cloud.agent.AgentShell] (main:null) (logid:) 
Agent started
2021-12-15 18:04:14,444 INFO [cloud.agent.AgentShell] (main:null) (logid:) 
Implementation Version is 4.15.0.0
2021-12-15 18:04:14,447 INFO [cloud.agent.AgentShell] (main:null) (logid:) 
agent.properties found at /etc/cloudstack/agent/agent.properties
2021-12-15 18:04:14,466 INFO [cloud.agent.AgentShell] (main:null) (logid:) 
Defaulting to using properties file for storage
2021-12-15 18:04:14,467 INFO [cloud.agent.AgentShell] (main:null) (logid:) 
Defaulting to the constant time backoff algorithm
2021-12-15 18:04:14,471 INFO [cloud.utils.LogUtils] (main:null) (logid:) log4j 
configuration found at /etc/cloudstack/agent/log4j-cloud.xml
2021-12-15 18:04:14,485 INFO [cloud.agent.AgentShell] (main:null) (logid:) 
Using default Java settings for IPv6 preference for agent connection
2021-12-15 18:04:14,592 INFO [cloud.agent.Agent] (main:null) (logid:) id is 0
2021-12-15 18:04:14,606 ERROR [kvm.resource.LibvirtComputingResource] 
(main:null) (logid:) uefi properties file not found due to: Unable to find file 
uefi.properties.
2021-12-15 18:04:14,663 INFO [kvm.resource.LibvirtConnection] (main:null) 
(logid:) No existing libvirtd connection found. Opening a new one
2021-12-15 18:04:14,890 INFO [kvm.resource.LibvirtComputingResource] 
(main:null) (logid:) No libvirt.vif.driver specified. Defaults to 
BridgeVifDriver.
2021-12-15 18:04:15,086 INFO [kvm.resource.LibvirtComputingResource] 
(main:null) (logid:) iscsi session clean up is disabled
2021-12-15 18:04:15,129 INFO [cloud.agent.Agent] (main:null) (logid:) Agent [id 
= 0 : type = LibvirtComputingResource : zone = 1 : pod = 1 : workers = 5 : host 
= 192.168.30.59 : port = 8250
2021-12-15 18:04:15,139 INFO [utils.nio.NioClient] (main:null) (logid:) 
Connecting to 192.168.30.59:8250
2021-12-15 18:04:15,153 INFO [utils.nio.Link] (main:null) (logid:) Conf file 
found: /etc/cloudstack/agent/agent.properties
2021-12-15 18:04:15,919 INFO [utils.nio.NioClient] (main:null) (logid:) SSL: 
Handshake done
2021-12-15 18:04:15,920 INFO [utils.nio.NioClient] (main:null) (logid:) 
Connected to 192.168.30.59:8250
2021-12-15 18:04:16,057 INFO [kvm.storage.LibvirtStorageAdaptor] 
(Agent-Handler-1:null) (logid:) Attempting to create storage pool 
18796842-a137-475d-9799-9874240e3c0c (Filesystem) in libvirt
2021-12-15 18:04:16,062 ERROR [kvm.resource.LibvirtConnection] 
(Agent-Handler-1:null) (logid:) Connection with libvirtd is broken: invalid 
connection pointer in virConnectGetVersion
2021-12-15 18:04:16,066 INFO [kvm.storage.LibvirtStorageAdaptor] 
(Agent-Handler-1:null) (logid:) Found existing defined storage pool 
18796842-a137-475d-9799-9874240e3c0c, using it.
2021-12-15 18:04:16,066 INFO [kvm.storage.LibvirtStorageAdaptor] 
(Agent-Handler-1:null) (logid:) Trying to fetch storage pool 
18796842-a137-475d-9799-9874240e3c0c from libvirt
2021-12-15 18:04:16,151 INFO [cloud.serializer.GsonHelper] 
(Agent-Handler-1:null) (logid:) Default Builder inited.
2021-12-15 18:04:16,272 INFO [cloud.agent.Agent] (Agent-Handler-2:null) 
(logid:) Proccess agent startup answer, agent id = 0
2021-12-15 18:04:16,273 INFO [cloud.agent.Agent] (Agent-Handler-2:null) 
(logid:) Set agent id 0
2021-12-15 18:04:16,289 INFO [cloud.agent.Agent] (Agent-Handler-2:null) 
(logid:) Startup Response Received: agent id = 0
2021-12-15 18:04:16,289 INFO [cloud.agent.Agent] (AgentShutdownThread:null) 
(logid:) Stopping the agent: Reason = sig.kill

I also noticed this:

2021-12-15 18:05:34,542 DEBUG [c.c.a.m.AgentManagerImpl] 
(AgentConnectTaskPool-19617:ctx-e0dfdb18) (logid:d3930423) Failed to handle 
host connection:
java.lang.IllegalArgumentException: Can't add host: 192.168.30.54 with hostOS: 
Rocky into a cluster,in which there are CentOS hosts added
at 
com.cloud.hypervisor.kvm.discoverer.LibvirtServerDiscoverer.createHostVOForConnectedAgent(LibvirtServerDiscoverer.java:456)
at 
com.cloud.resource.ResourceManagerImpl.dispatchToStateAdapters(ResourceManagerImpl.java:1719)
at 
com.cloud.resource.ResourceManagerImpl.createHostVO(ResourceManagerImpl.java:1946)
at 
com.cloud.resource.ResourceManagerImpl.createHostVOForConnectedAgent(ResourceManagerImpl.java:2278)
at jdk.internal.reflect.GeneratedMethodAccessor510.invoke(Unknown Source)
at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at 
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
at 
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at 
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at 
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
at com.sun.proxy.$Proxy188.createHostVOForConnectedAgent(Unknown Source)
at 
com.cloud.agent.manager.AgentManagerImpl.handleConnectedAgent(AgentManagerImpl.java:1097)
at 
com.cloud.agent.manager.AgentManagerImpl$HandleAgentConnectTask.runInContext(AgentManagerImpl.java:1194)
at 
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:48)
at 
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:55)
at 
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:102)
at 
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:52)
at 
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:45)
at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:829)

The fact that this host has been converted to Rocky Linux is causing an issue? 
What’s the work around for this?

Thanks
-jeremy

> On Monday, Dec 13, 2021 at 12:19 AM, Jeremy Hansen <jer...@skidrow.la 
> (mailto:jer...@skidrow.la)> wrote:
> It doesn’t error out but there is purposely no VMs running on these hosts to 
> test the upgrade of the underlying distro before having to stop any active 
> VMs.
>
> [jeremy@cm02 ~]$ sudo virsh list
> Id Name State
> --------------------
>
> [jeremy@cm02 ~]$
>
>
> -jeremy
>
>
>
>
> > On Monday, Dec 13, 2021 at 12:06 AM, Wei ZHOU <ustcweiz...@gmail.com 
> > (mailto:ustcweiz...@gmail.com)> wrote:
> > Hi,
> >
> > Do virsh commands e.g. "virsh list" work ?
> >
> > -Wei
> >
> > On Mon, 13 Dec 2021 at 06:46, Jeremy Hansen <jer...@skidrow.la.invalid>
> > wrote:
> >
> > > Testing on an unused compute node, I tested upgrading to RockyLinux 8.5.
> > >
> > > I’m running Cloudstack 4.15.0.0.
> > >
> > > Trying to bring up cloudstack agent, I’m seeing some issues communicating
> > > with libvirt:
> > >
> > > 2021-12-12 21:25:03,992 INFO [kvm.storage.LibvirtStorageAdaptor]
> > > (Agent-Handler-1:null) (logid:) Attempting to create storage pool
> > > d1b1e853-1c30-473d-badc-6c30318aa5b0 (Filesystem) in libvirt
> > > 2021-12-12 21:25:03,997 ERROR [kvm.resource.LibvirtConnection]
> > > (Agent-Handler-1:null) (logid:) Connection with libvirtd is broken: 
> > > invalid
> > > connection pointer in virConnectGetVersion
> > > 2021-12-12 21:25:04,000 INFO [kvm.storage.LibvirtStorageAdaptor]
> > > (Agent-Handler-1:null) (logid:) Found existing defined storage pool
> > > d1b1e853-1c30-473d-badc-6c30318aa5b0, using it.
> > >
> > > Dec 12 21:24:13 cm02 libvirtd[269244]: End of file while reading data:
> > > Input/output error
> > > Dec 12 21:24:13 cm02 libvirtd[269244]: End of file while reading data:
> > > Input/output error
> > > Dec 12 21:24:26 cm02 libvirtd[269244]: End of file while reading data:
> > > Input/output error
> > > Dec 12 21:24:26 cm02 libvirtd[269244]: End of file while reading data:
> > > Input/output error
> > > Dec 12 21:24:26 cm02 libvirtd[269244]: Cannot recv data: Input/output 
> > > error
> > >
> > > Libvirt version is: libvirt-6.0.0-37.module+el8.5.0+670+c4aa478c.x86_64
> > >
> > > Functional hosts that have yet to be upgraded are using:
> > >
> > > libvirt-6.0.0-35.module_el8.4.0+783+f8734d30.x86_64
> > >
> > >
> > > My libvirtd.conf looks like this:
> > >
> > > listen_tcp=0
> > > listen_tls=1
> > > tcp_port="16509"
> > > auth_tcp="none"
> > > mdns_adv = 0
> > > key_file="/etc/pki/libvirt/private/serverkey.pem"
> > > cert_file="/etc/pki/libvirt/servercert.pem"
> > > ca_file="/etc/pki/CA/cacert.pem"
> > > tls_port="16514"
> > > auth_tls=“none"
> > >
> > > 2021-12-12 21:43:42,841 ERROR [kvm.resource.LibvirtComputingResource]
> > > (main:null) (logid:) uefi properties file not found due to: Unable to find
> > > file uefi.properties.
> > > 2021-12-12 21:43:42,901 INFO [kvm.resource.LibvirtConnection] (main:null)
> > > (logid:) No existing libvirtd connection found. Opening a new one
> > > 2021-12-12 21:43:43,127 INFO [kvm.resource.LibvirtComputingResource]
> > > (main:null) (logid:) No libvirt.vif.driver specified. Defaults to
> > > BridgeVifDriver.
> > > 2021-12-12 21:43:43,296 INFO [kvm.resource.LibvirtComputingResource]
> > > (main:null) (logid:) iscsi session clean up is disabled
> > > 2021-12-12 21:43:43,312 INFO [cloud.agent.Agent] (main:null) (logid:)
> > > Agent [id = 0 : type = LibvirtComputingResource : zone = 1 : pod = 1 :
> > > workers = 5 : host = 192.168.30.59 : port = 8250
> > > 2021-12-12 21:43:43,321 INFO [utils.nio.NioClient] (main:null) (logid:)
> > > Connecting to 192.168.30.59:8250
> > > 2021-12-12 21:43:43,325 INFO [utils.nio.Link] (main:null) (logid:) Conf
> > > file found: /etc/cloudstack/agent/agent.properties
> > > 2021-12-12 21:43:43,840 INFO [utils.nio.NioClient] (main:null) (logid:)
> > > SSL: Handshake done
> > > 2021-12-12 21:43:43,840 INFO [utils.nio.NioClient] (main:null) (logid:)
> > > Connected to 192.168.30.59:8250
> > > 2021-12-12 21:43:43,925 INFO [kvm.storage.LibvirtStorageAdaptor]
> > > (Agent-Handler-1:null) (logid:) Attempting to create storage pool
> > > 18796842-a137-475d-9799-9874240e3c0c (Filesystem) in libvirt
> > > 2021-12-12 21:43:43,929 ERROR [kvm.resource.LibvirtConnection]
> > > (Agent-Handler-1:null) (logid:) Connection with libvirtd is broken: 
> > > invalid
> > > connection pointer in virConnectGetVersion
> > > 2021-12-12 21:43:43,932 INFO [kvm.storage.LibvirtStorageAdaptor]
> > > (Agent-Handler-1:null) (logid:) Found existing defined storage pool
> > > 18796842-a137-475d-9799-9874240e3c0c, using it.
> > > 2021-12-12 21:43:43,933 INFO [kvm.storage.LibvirtStorageAdaptor]
> > > (Agent-Handler-1:null) (logid:) Trying to fetch storage pool
> > > 18796842-a137-475d-9799-9874240e3c0c from libvirt
> > > 2021-12-12 21:43:43,985 INFO [cloud.serializer.GsonHelper]
> > > (Agent-Handler-1:null) (logid:) Default Builder inited.
> > > 2021-12-12 21:43:44,020 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
> > > (logid:) Proccess agent startup answer, agent id = 0
> > > 2021-12-12 21:43:44,022 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
> > > (logid:) Set agent id 0
> > > 2021-12-12 21:43:44,028 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
> > > (logid:) Startup Response Received: agent id = 0
> > > 2021-12-12 21:43:44,031 INFO [cloud.agent.Agent]
> > > (AgentShutdownThread:null) (logid:) Stopping the agent: Reason = sig.kill
> > > 2021-12-12 21:43:55,682 INFO [cloud.agent.AgentShell] (main:null)
> > > (logid:) Agent started
> > > 2021-12-12 21:43:55,688 INFO [cloud.agent.AgentShell] (main:null)
> > > (logid:) Implementation Version is 4.15.0.0
> > > 2021-12-12 21:43:55,690 INFO [cloud.agent.AgentShell] (main:null)
> > > (logid:) agent.properties found at /etc/cloudstack/agent/agent.properties
> > > 2021-12-12 21:43:55,709 INFO [cloud.agent.AgentShell] (main:null)
> > > (logid:) Defaulting to using properties file for storage
> > > 2021-12-12 21:43:55,711 INFO [cloud.agent.AgentShell] (main:null)
> > > (logid:) Defaulting to the constant time backoff algorithm
> > > 2021-12-12 21:43:55,714 INFO [cloud.utils.LogUtils] (main:null) (logid:)
> > > log4j configuration found at /etc/cloudstack/agent/log4j-cloud.xml
> > > 2021-12-12 21:43:55,728 INFO [cloud.agent.AgentShell] (main:null)
> > > (logid:) Using default Java settings for IPv6 preference for agent
> > > connection
> > > 2021-12-12 21:43:55,840 INFO [cloud.agent.Agent] (main:null) (logid:) id
> > > is 0
> > > 2021-12-12 21:43:55,853 ERROR [kvm.resource.LibvirtComputingResource]
> > > (main:null) (logid:) uefi properties file not found due to: Unable to find
> > > file uefi.properties.
> > > 2021-12-12 21:43:55,909 INFO [kvm.resource.LibvirtConnection] (main:null)
> > > (logid:) No existing libvirtd connection found. Opening a new one
> > > 2021-12-12 21:43:56,145 INFO [kvm.resource.LibvirtComputingResource]
> > > (main:null) (logid:) No libvirt.vif.driver specified. Defaults to
> > > BridgeVifDriver.
> > > 2021-12-12 21:43:56,307 INFO [kvm.resource.LibvirtComputingResource]
> > > (main:null) (logid:) iscsi session clean up is disabled
> > > 2021-12-12 21:43:56,322 INFO [cloud.agent.Agent] (main:null) (logid:)
> > > Agent [id = 0 : type = LibvirtComputingResource : zone = 1 : pod = 1 :
> > > workers = 5 : host = 192.168.30.59 : port = 8250
> > > 2021-12-12 21:43:56,331 INFO [utils.nio.NioClient] (main:null) (logid:)
> > > Connecting to 192.168.30.59:8250
> > > 2021-12-12 21:43:56,335 INFO [utils.nio.Link] (main:null) (logid:) Conf
> > > file found: /etc/cloudstack/agent/agent.properties
> > > 2021-12-12 21:43:56,843 INFO [utils.nio.NioClient] (main:null) (logid:)
> > > SSL: Handshake done
> > > 2021-12-12 21:43:56,843 INFO [utils.nio.NioClient] (main:null) (logid:)
> > > Connected to 192.168.30.59:8250
> > > 2021-12-12 21:43:56,941 INFO [kvm.storage.LibvirtStorageAdaptor]
> > > (Agent-Handler-1:null) (logid:) Attempting to create storage pool
> > > 18796842-a137-475d-9799-9874240e3c0c (Filesystem) in libvirt
> > > 2021-12-12 21:43:56,945 ERROR [kvm.resource.LibvirtConnection]
> > > (Agent-Handler-1:null) (logid:) Connection with libvirtd is broken: 
> > > invalid
> > > connection pointer in virConnectGetVersion
> > > 2021-12-12 21:43:56,948 INFO [kvm.storage.LibvirtStorageAdaptor]
> > > (Agent-Handler-1:null) (logid:) Found existing defined storage pool
> > > 18796842-a137-475d-9799-9874240e3c0c, using it.
> > > 2021-12-12 21:43:56,948 INFO [kvm.storage.LibvirtStorageAdaptor]
> > > (Agent-Handler-1:null) (logid:) Trying to fetch storage pool
> > > 18796842-a137-475d-9799-9874240e3c0c from libvirt
> > > 2021-12-12 21:43:56,998 INFO [cloud.serializer.GsonHelper]
> > > (Agent-Handler-1:null) (logid:) Default Builder inited.
> > > 2021-12-12 21:43:57,031 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
> > > (logid:) Proccess agent startup answer, agent id = 0
> > > 2021-12-12 21:43:57,033 INFO [cloud.agent.Agent]
> > > (AgentShutdownThread:null) (logid:) Stopping the agent: Reason = sig.kill
> > > 2021-12-12 21:43:57,033 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
> > > (logid:) Set agent id 0
> > > 2021-12-12 21:43:57,040 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
> > > (logid:) Startup Response Received: agent id = 0
> > >
> > > Any ideas? I’m working toward upgrading the entire cluster along with
> > > Cloudstack itself.
> > >
> > > -jeremy
> > >
> > >
> > >
> > >

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