NullPointerException when trying to add host

[miloserdoff]

I'm trying to add another host to the cluster in Apache Cloudstack 4.20.

When I try to create a host on the Management Server

2026-03-12 17:15:22,634 DEBUG [o.a.c.a.StaticRoleBasedAPIAccessChecker] (qtp170949260-341:[ctx-5dc40c0e, ctx-5c4f9f14]) (logid:5002afee) RoleService is enabled. We will use it instead of StaticRoleBasedAPIAccessChecker.
2026-03-12 17:15:22,634 DEBUG [o.a.c.r.ApiRateLimitServiceImpl] (qtp170949260-341:[ctx-5dc40c0e, ctx-5c4f9f14]) (logid:5002afee) API rate limiting is disabled. We will not use ApiRateLimitService.
2026-03-12 17:15:22,635 INFO [c.c.a.ApiServlet] (qtp170949260-341:[ctx-5dc40c0e, ctx-5c4f9f14]) (logid:5002afee) (userId=2 accountId=2 sessionId=node0lktn5cfqqp7l1u5qucjbsta600) 192.168.127.250 -- GET command=readyForShutdown&response=json&sessionkey=iCTtB_t-JpOcEXhb7MqLS7OPZ9A 200 {"readyforshutdownresponse":{"readyforshutdown":{"readyforshutdown":true,"shutdowntriggered":false,"pendingjobscount":0}}}
2026-03-12 17:15:22,635 DEBUG [c.c.a.ApiServlet] (qtp170949260-341:[ctx-5dc40c0e, ctx-5c4f9f14]) (logid:5002afee) ===END=== 192.168.127.250 -- GET command=readyForShutdown&response=json&sessionkey=iCTtB_t-JpOcEXhb7MqLS7OPZ9A
2026-03-12 17:15:23,543 DEBUG [c.c.a.m.ClusteredAgentManagerImpl] (AgentManager-Handler-11:[]) (logid:) SeqA 26-22355: Seq 26-22355: { Cmd , MgmtId: -1, via: 26, Ver: v1, Flags: 11, [{"com.cloud.agent.api.ConsoleProxyLoadReportCommand":{"_proxyVmId":"2863","_loadInfo":"{ 
"connections": [], 
"removedSessions": []
}","wait":"0","bypassHostMaintenance":"false"}}] }
2026-03-12 17:15:23,547 DEBUG [c.c.a.m.ClusteredAgentManagerImpl] (AgentManager-Handler-11:[]) (logid:) SeqA 26-: Sending 22355
2026-03-12 17:15:25,403 DEBUG [o.a.c.h.H.HAManagerBgPollTask] (BackgroundTaskPollManager-2:[ctx-39ffbe07]) (logid:9f493717) HA health check task is running...
2026-03-12 17:15:25,670 DEBUG [c.c.u.s.SSHCmdHelper] (qtp170949260-334:[ctx-8a54628c, ctx-175a9bd1]) (logid:3341f99b) SSH command: cloudstack-setup-agent -m 192.168.127.60 -z 1 -p 1 -c 1 -g 04b35c97-4313-3db4-b8e9-0ff7f861ede6 -a -s --pubNic=cloudbr0 --prvNic=cloudbr0 --guestNic=cloudbr0 --hypervisor=kvm
SSH command output:Starting to configure your system:
Configure Host... [OK]
Configure Apparmor... [OK]
Configure Network...[OK]
Configure Libvirt... [OK]
Configure Firewall...[OK]
Configure Nfs... [OK]
Configure cloudAgent... [OK]
CloudStack Agent setup is done!


2026-03-12 17:15:27,305 DEBUG [o.a.c.c.p.RootCACustomTrustManager] (pool-537-thread-1:[]) (logid:) A client/agent attempting connection from address=192.168.127.90 has presented these certificate(s):
Certificate [1] : 
Serial: e08b7c01504878c1 
Not Before:Thu Mar 12 05:14:46 UTC 2026 
Not After:Fri Mar 12 17:14:46 UTC 2027 
Signature Algorithm:SHA256withRSA 
Version:3 
Subject DN:C=cloudstack, O=cloudstack, OU=cloudstack, CN=acs-host 
Issuer DN:CN=ca.cloudstack.apache.org 
Alternative Names:[[7, 192.168.127.90], [2, 192.168.127.90]]
Certificate [2] : 
Serial: df018901874f103c 
Not Before:Mon May 12 23:45:22 UTC 2025 
Not After:Thu May 06 11:45:22 UTC 2055 
Signature Algorithm:SHA256withRSA 
Version:3 
Subject DN:CN=ca.cloudstack.apache.org 
Issuer DN:CN=ca.cloudstack.apache.org 
Alternative Names:null
2026-03-12 17:15:27,306 DEBUG [o.a.c.c.p.RootCACustomTrustManager] (pool-537-thread-1:[]) (logid:) Client/agent connection from ip=192.168.127.90 has been validated and trusted.


026-03-12 17:15:29,155 DEBUG [c.c.a.m.ClusteredAgentAttache] (AgentManager-Handler-5:[]) (logid:) Seq 32-4580442296012505096: Sending now.  is current sequence.
2026-03-12 17:15:29,156 INFO  [c.c.a.m.ClusteredAgentManagerImpl] (AgentManager-Handler-5:[]) (logid:) SeqA 32-4580442296012505093: Response is not processed: Seq 32-4580442296012505093:  { Ans: , MgmtId: 200536954146485, via: 32, Ver: v1, Flags: 110, [{"com.cloud.agent.api.Answer":{"result":"true","wait":"0","bypassHostMaintenance":"false"}}] }
2026-03-12 17:15:29,243 DEBUG [c.c.a.t.Request] (AgentManager-Handler-7:[]) (logid:) Seq 32-4580442296012505096: Processing:  { Ans: , MgmtId: 200536954146485, via: 32, Ver: v1, Flags: 110, [{"com.cloud.agent.api.Answer":{"result":"false","details":"java.lang.NullPointerException
        at java.base/java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
        at java.base/java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)
        at java.base/java.util.Properties.put(Properties.java:1304)
        at java.base/java.util.Properties.setProperty(Properties.java:232)
        at com.cloud.agent.dao.impl.PropertiesStorage.persist(PropertiesStorage.java:55)
        at com.cloud.agent.AgentShell.setPersistentProperty(AgentShell.java:215)
        at com.cloud.agent.Agent.setUuid(Agent.java:422)
        at com.cloud.agent.Agent.processReadyCommand(Agent.java:956)
        at com.cloud.agent.Agent.processRequest(Agent.java:774)
        at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:1193)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)
","wait":"0","bypassHostMaintenance":"false"}}] }
2026-03-12 17:15:29,243 DEBUG [c.c.a.m.ClusteredAgentAttache] (AgentManager-Handler-7:[]) (logid:) Seq 32-4580442296012505096: No more commands found
2026-03-12 17:15:29,243 DEBUG [c.c.a.t.Request] (AgentConnectTaskPool-527:[ctx-662b55a3]) (logid:92f84aad) Seq 32-4580442296012505096: Received:  { Ans: , MgmtId: 200536954146485, via: 32(acs-host), Ver: v1, Flags: 110, { Answer } }
2026-03-12 17:15:29,243 DEBUG [c.c.a.m.ClusteredAgentManagerImpl] (AgentConnectTaskPool-527:[ctx-662b55a3]) (logid:92f84aad) Details from executing class com.cloud.agent.api.ReadyCommand: java.lang.NullPointerException
        at java.base/java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
        at java.base/java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)
        at java.base/java.util.Properties.put(Properties.java:1304)
        at java.base/java.util.Properties.setProperty(Properties.java:232)
        at com.cloud.agent.dao.impl.PropertiesStorage.persist(PropertiesStorage.java:55)
        at com.cloud.agent.AgentShell.setPersistentProperty(AgentShell.java:215)
        at com.cloud.agent.Agent.setUuid(Agent.java:422)
        at com.cloud.agent.Agent.processReadyCommand(Agent.java:956)
        at com.cloud.agent.Agent.processRequest(Agent.java:774)
        at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:1193)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

Apache Cloudstack Agent:

2026-03-12 09:15:13,380 INFO  [cloud.utils.LogUtils] (main:[]) (logid:) log4j configuration found at /etc/cloudstack/agent/log4j-cloud.xml
2026-03-12 09:15:13,380 INFO  [cloud.agent.AgentShell] (main:[]) (logid:) Using default Java settings for IPv6 preference for agent connection
2026-03-12 09:15:13,418 INFO  [cloud.agent.Agent] (main:[]) (logid:) Initialising agent [id: , uuid: null, name: null]
2026-03-12 09:15:13,422 ERROR [kvm.resource.LibvirtComputingResource] (main:[]) (logid:) uefi properties file not found due to: Unable to find file uefi.properties.
2026-03-12 09:15:13,441 INFO  [kvm.resource.LibvirtConnection] (main:[]) (logid:) No existing libvirtd connection found. Opening a new one
2026-03-12 09:15:13,533 WARN  [kvm.resource.LibvirtComputingResource] (main:[]) (logid:) Ignoring libvirt error. org.libvirt.LibvirtException: Network not found: no network with matching name 'default'
        at org.libvirt.ErrorHandler.processError(Unknown Source)
        at org.libvirt.ErrorHandler.processError(Unknown Source)
        at org.libvirt.Connect.networkLookupByName(Unknown Source)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.configure(LibvirtComputingResource.java:1189)
        at com.cloud.agent.Agent.<init>(Agent.java:235)
        at com.cloud.agent.AgentShell.launchNewAgent(AgentShell.java:457)
        at com.cloud.agent.AgentShell.launchAgentFromClassInfo(AgentShell.java:436)
        at com.cloud.agent.AgentShell.launchAgent(AgentShell.java:420)
        at com.cloud.agent.AgentShell.start(AgentShell.java:521)
        at com.cloud.agent.AgentShell.main(AgentShell.java:551)

2026-03-12 09:15:14,247 INFO  [kvm.resource.LibvirtComputingResource] (main:[]) (logid:) IO uring driver for Qemu: enabled
2026-03-12 09:15:14,308 INFO  [kvm.storage.KVMStoragePoolManager] (main:[]) (logid:) Adding storage adaptor for com.cloud.hypervisor.kvm.storage.LinstorStorageAdaptor
2026-03-12 09:15:14,309 INFO  [kvm.storage.KVMStoragePoolManager] (main:[]) (logid:) Adding storage adaptor for com.cloud.hypervisor.kvm.storage.StorPoolStorageAdaptor
2026-03-12 09:15:14,310 INFO  [kvm.storage.KVMStoragePoolManager] (main:[]) (logid:) Adding storage adaptor for com.cloud.hypervisor.kvm.storage.ScaleIOStorageAdaptor
2026-03-12 09:15:14,310 INFO  [kvm.storage.KVMStoragePoolManager] (main:[]) (logid:) Adding storage adaptor for com.cloud.hypervisor.kvm.storage.IscsiAdmStorageAdaptor
2026-03-12 09:15:14,310 INFO  [kvm.storage.KVMStoragePoolManager] (main:[]) (logid:) Adding storage adaptor for com.cloud.hypervisor.kvm.storage.ManagedNfsStorageAdaptor
2026-03-12 09:15:14,314 INFO  [kvm.storage.FiberChannelAdapter] (main:[]) (logid:) Loaded FiberChannelAdapter for StorageLayer
2026-03-12 09:15:14,315 INFO  [kvm.storage.FiberChannelAdapter] (main:[]) (logid:) Loaded FiberChannelAdapter for StorageLayer on host [acs-host]
2026-03-12 09:15:14,315 INFO  [kvm.storage.KVMStoragePoolManager] (main:[]) (logid:) Adding storage adaptor for com.cloud.hypervisor.kvm.storage.FiberChannelAdapter
2026-03-12 09:15:14,315 INFO  [kvm.resource.LibvirtComputingResource] (main:[]) (logid:) No libvirt.vif.driver specified. Defaults to BridgeVifDriver.
2026-03-12 09:15:14,405 INFO  [cloud.serializer.GsonHelper] (main:[]) (logid:) Default Builder inited.
2026-03-12 09:15:14,405 INFO  [kvm.resource.LibvirtComputingResource] (main:[]) (logid:) iscsi session clean up is disabled
2026-03-12 09:15:14,407 INFO  [kvm.resource.LibvirtComputingResource] (main:[]) (logid:) Skipping the memory balloon stats period setting, since there are no VMs (active Libvirt domains) on this host.
2026-03-12 09:15:14,407 INFO  [kvm.resource.LibvirtComputingResource] (main:[]) (logid:) The [vm.memballoon.stats.period] property is set to '0', this prevents memory statistics from being displayed correctly. Adjust (increase) the value of this parameter to correct this.
2026-03-12 09:15:14,409 INFO  [cloud.agent.Agent] (main:[]) (logid:) Agent [id = new, uuid = null, name = null, type = LibvirtComputingResource, zone = 1, pod = 1, workers = 5, port = 8250] with host = 192.168.127.60, local id = 1
2026-03-12 09:15:14,410 INFO  [utils.nio.NioClient] (main:[]) (logid:) Connecting to 192.168.127.60:8250
2026-03-12 09:15:14,413 INFO  [utils.nio.NioClient] (main:[]) (logid:) Connected to 192.168.127.60:8250
2026-03-12 09:15:14,414 INFO  [utils.nio.Link] (main:[]) (logid:) Conf file found: /etc/cloudstack/agent/agent.properties
2026-03-12 09:15:14,632 INFO  [utils.nio.NioClient] (main:[]) (logid:) SSL: Handshake done
2026-03-12 09:15:14,681 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from command "lscpu".
2026-03-12 09:15:14,734 ERROR [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Unable to retrieve the CPU speed from lscpu. java.lang.NullPointerException: Cannot invoke "String.trim()" because "in" is null
        at java.base/jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1838)
        at java.base/jdk.internal.math.FloatingDecimal.parseFloat(FloatingDecimal.java:122)
        at java.base/java.lang.Float.parseFloat(Float.java:476)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeedFromCommandLscpu(KVMHostInfo.java:141)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeed(KVMHostInfo.java:115)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getHostInfoFromLibvirt(KVMHostInfo.java:207)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.<init>(KVMHostInfo.java:68)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.initialize(LibvirtComputingResource.java:3766)
        at com.cloud.agent.Agent.sendStartup(Agent.java:541)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1212)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:14,788 ERROR [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Unable to retrieve the CPU speed from lscpu. java.lang.NullPointerException: Cannot invoke "String.trim()" because "in" is null
        at java.base/jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1838)
        at java.base/jdk.internal.math.FloatingDecimal.parseFloat(FloatingDecimal.java:122)
        at java.base/java.lang.Float.parseFloat(Float.java:476)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeedFromCommandLscpu(KVMHostInfo.java:150)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeed(KVMHostInfo.java:115)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getHostInfoFromLibvirt(KVMHostInfo.java:207)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.<init>(KVMHostInfo.java:68)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.initialize(LibvirtComputingResource.java:3766)
        at com.cloud.agent.Agent.sendStartup(Agent.java:541)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1212)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:14,789 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from file [/sys/devices/system/cpu/cpu0/cpufreq/base_frequency].
2026-03-12 09:15:14,789 ERROR [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Unable to retrieve the CPU speed from file [/sys/devices/system/cpu/cpu0/cpufreq/base_frequency] java.io.FileNotFoundException: /sys/devices/system/cpu/cpu0/cpufreq/base_frequency (No such file or directory)
        at java.base/java.io.FileInputStream.open0(Native Method)
        at java.base/java.io.FileInputStream.open(FileInputStream.java:216)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:111)
        at java.base/java.io.FileReader.<init>(FileReader.java:60)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeedFromFile(KVMHostInfo.java:162)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeed(KVMHostInfo.java:120)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getHostInfoFromLibvirt(KVMHostInfo.java:207)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.<init>(KVMHostInfo.java:68)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.initialize(LibvirtComputingResource.java:3766)
        at com.cloud.agent.Agent.sendStartup(Agent.java:541)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1212)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:14,789 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from file [/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq].
2026-03-12 09:15:14,789 ERROR [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Unable to retrieve the CPU speed from file [/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq] java.io.FileNotFoundException: /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq (No such file or directory)
        at java.base/java.io.FileInputStream.open0(Native Method)
        at java.base/java.io.FileInputStream.open(FileInputStream.java:216)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:111)
        at java.base/java.io.FileReader.<init>(FileReader.java:60)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeedFromFile(KVMHostInfo.java:162)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeed(KVMHostInfo.java:120)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getHostInfoFromLibvirt(KVMHostInfo.java:207)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.<init>(KVMHostInfo.java:68)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.initialize(LibvirtComputingResource.java:3766)
        at com.cloud.agent.Agent.sendStartup(Agent.java:541)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1212)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:14,789 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from "host capabilities"
2026-03-12 09:15:14,795 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Retrieved value [2399999000] from "host capabilities". This corresponds to a CPU speed of [2399] MHz.
2026-03-12 09:15:14,796 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching host CPU arch
2026-03-12 09:15:14,804 INFO  [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Host uses control group [cgroup2fs].
2026-03-12 09:15:14,804 INFO  [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Calculating the max shares of the host.
2026-03-12 09:15:14,804 INFO  [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) The max shares of the host is [460608].
2026-03-12 09:15:14,878 WARN  [utils.script.Script] (Agent-Handler-1:[]) (logid:) Execution of process [104952] for command [/bin/bash -c dpkg -l nbdkit ] failed.
2026-03-12 09:15:14,878 WARN  [utils.script.Script] (Agent-Handler-1:[]) (logid:) Process [104952] for command [/bin/bash -c dpkg -l nbdkit ] encountered the error: [1].
2026-03-12 09:15:14,881 WARN  [utils.script.Script] (Agent-Handler-1:[]) (logid:) Execution of process [104953] for command [/bin/bash -c ovftool --version ] failed.
2026-03-12 09:15:14,881 WARN  [utils.script.Script] (Agent-Handler-1:[]) (logid:) Process [104953] for command [/bin/bash -c ovftool --version ] encountered the error: [127].
2026-03-12 09:15:14,881 INFO  [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Attempting to create storage pool 543daf9e-d4d8-4b01-bce2-34ff5333e3b4 (Filesystem) in libvirt
2026-03-12 09:15:14,882 WARN  [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Storage pool 543daf9e-d4d8-4b01-bce2-34ff5333e3b4 was not found running in libvirt. Need to create it.
2026-03-12 09:15:14,882 INFO  [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Didn't find an existing storage pool 543daf9e-d4d8-4b01-bce2-34ff5333e3b4 by UUID, checking for pools with duplicate paths
2026-03-12 09:15:14,889 INFO  [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Trying to fetch storage pool 543daf9e-d4d8-4b01-bce2-34ff5333e3b4 from libvirt
2026-03-12 09:15:15,933 INFO  [cloud.agent.Agent] (Agent-Handler-2:[]) (logid:) Process agent startup answer, agent [id: 0, uuid: null, name: null] connected to the server
2026-03-12 09:15:15,939 ERROR [cloud.agent.Agent] (Agent-Handler-2:[]) (logid:) Error parsing task java.lang.NullPointerException
        at java.base/java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
        at java.base/java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)
        at java.base/java.util.Properties.put(Properties.java:1304)
        at java.base/java.util.Properties.setProperty(Properties.java:232)
        at com.cloud.agent.dao.impl.PropertiesStorage.persist(PropertiesStorage.java:55)
        at com.cloud.agent.AgentShell.setPersistentProperty(AgentShell.java:215)
        at com.cloud.agent.Agent.setUuid(Agent.java:422)
        at com.cloud.agent.Agent.processStartupAnswer(Agent.java:687)
        at com.cloud.agent.Agent.processResponse(Agent.java:931)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1219)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:16,011 INFO  [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-3:[]) (logid:) Attempting to create storage pool f6257a01-2b05-3e14-b3f8-a6cbc3613986 (RBD) in libvirt
2026-03-12 09:15:16,012 WARN  [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-3:[]) (logid:) Storage pool f6257a01-2b05-3e14-b3f8-a6cbc3613986 was not found running in libvirt. Need to create it.
2026-03-12 09:15:16,012 INFO  [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-3:[]) (logid:) Didn't find an existing storage pool f6257a01-2b05-3e14-b3f8-a6cbc3613986 by UUID, checking for pools with duplicate paths
2026-03-12 09:15:16,161 INFO  [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-3:[]) (logid:) Trying to fetch storage pool f6257a01-2b05-3e14-b3f8-a6cbc3613986 from libvirt
2026-03-12 09:15:16,229 INFO  [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-4:[]) (logid:) Attempting to create storage pool 87a89064-a632-3056-ba4e-64e032252b19 (NetworkFilesystem) in libvirt
2026-03-12 09:15:16,231 INFO  [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-4:[]) (logid:) Found existing defined storage pool 87a89064-a632-3056-ba4e-64e032252b19, using it.
2026-03-12 09:15:16,234 INFO  [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-4:[]) (logid:) Trying to fetch storage pool 87a89064-a632-3056-ba4e-64e032252b19 from libvirt
2026-03-12 09:15:16,484 INFO  [cloud.agent.Agent] (AgentRequest-Handler-5:[]) (logid:) Processing agent ready command, agent id = 32, uuid = null, name = null
2026-03-12 09:15:16,484 WARN  [cloud.agent.Agent] (AgentRequest-Handler-5:[]) (logid:) Caught: java.lang.NullPointerException
        at java.base/java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
        at java.base/java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)
        at java.base/java.util.Properties.put(Properties.java:1304)
        at java.base/java.util.Properties.setProperty(Properties.java:232)
        at com.cloud.agent.dao.impl.PropertiesStorage.persist(PropertiesStorage.java:55)
        at com.cloud.agent.AgentShell.setPersistentProperty(AgentShell.java:215)
        at com.cloud.agent.Agent.setUuid(Agent.java:422)
        at com.cloud.agent.Agent.processReadyCommand(Agent.java:956)
        at com.cloud.agent.Agent.processRequest(Agent.java:774)
        at com.cloud.agent.Agent$AgentRequestHandler.doTask(Agent.java:1193)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:16,529 INFO  [cloud.agent.Agent] (Agent-Handler-1:[]) (logid:) Lost connection to host: 192.168.127.60. Attempting reconnection while we still have 0 commands in progress.
2026-03-12 09:15:16,530 INFO  [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) NioClient connection closed
2026-03-12 09:15:21,530 INFO  [cloud.agent.Agent] (Agent-Handler-1:[]) (logid:) Reconnecting to host: 192.168.127.60
2026-03-12 09:15:21,531 INFO  [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) Connecting to 192.168.127.60:8250
2026-03-12 09:15:21,531 INFO  [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) Connected to 192.168.127.60:8250
2026-03-12 09:15:21,531 INFO  [utils.nio.Link] (Agent-Handler-1:[]) (logid:) Conf file found: /etc/cloudstack/agent/agent.properties
2026-03-12 09:15:21,607 INFO  [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) SSL: Handshake done
2026-03-12 09:15:21,650 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from command "lscpu".
2026-03-12 09:15:21,703 ERROR [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Unable to retrieve the CPU speed from lscpu. java.lang.NullPointerException: Cannot invoke "String.trim()" because "in" is null
        at java.base/jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1838)
        at java.base/jdk.internal.math.FloatingDecimal.parseFloat(FloatingDecimal.java:122)
        at java.base/java.lang.Float.parseFloat(Float.java:476)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeedFromCommandLscpu(KVMHostInfo.java:141)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeed(KVMHostInfo.java:115)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getHostInfoFromLibvirt(KVMHostInfo.java:207)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.<init>(KVMHostInfo.java:68)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.initialize(LibvirtComputingResource.java:3766)
        at com.cloud.agent.Agent.sendStartup(Agent.java:541)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1212)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:21,758 ERROR [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Unable to retrieve the CPU speed from lscpu. java.lang.NullPointerException: Cannot invoke "String.trim()" because "in" is null
        at java.base/jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1838)
        at java.base/jdk.internal.math.FloatingDecimal.parseFloat(FloatingDecimal.java:122)
        at java.base/java.lang.Float.parseFloat(Float.java:476)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeedFromCommandLscpu(KVMHostInfo.java:150)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeed(KVMHostInfo.java:115)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getHostInfoFromLibvirt(KVMHostInfo.java:207)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.<init>(KVMHostInfo.java:68)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.initialize(LibvirtComputingResource.java:3766)
        at com.cloud.agent.Agent.sendStartup(Agent.java:541)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1212)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:21,759 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from file [/sys/devices/system/cpu/cpu0/cpufreq/base_frequency].
2026-03-12 09:15:21,759 ERROR [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Unable to retrieve the CPU speed from file [/sys/devices/system/cpu/cpu0/cpufreq/base_frequency] java.io.FileNotFoundException: /sys/devices/system/cpu/cpu0/cpufreq/base_frequency (No such file or directory)
        at java.base/java.io.FileInputStream.open0(Native Method)
        at java.base/java.io.FileInputStream.open(FileInputStream.java:216)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:111)
        at java.base/java.io.FileReader.<init>(FileReader.java:60)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeedFromFile(KVMHostInfo.java:162)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeed(KVMHostInfo.java:120)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getHostInfoFromLibvirt(KVMHostInfo.java:207)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.<init>(KVMHostInfo.java:68)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.initialize(LibvirtComputingResource.java:3766)
        at com.cloud.agent.Agent.sendStartup(Agent.java:541)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1212)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:21,759 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from file [/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq].
2026-03-12 09:15:21,759 ERROR [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Unable to retrieve the CPU speed from file [/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq] java.io.FileNotFoundException: /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq (No such file or directory)
        at java.base/java.io.FileInputStream.open0(Native Method)
        at java.base/java.io.FileInputStream.open(FileInputStream.java:216)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:111)
        at java.base/java.io.FileReader.<init>(FileReader.java:60)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeedFromFile(KVMHostInfo.java:162)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getCpuSpeed(KVMHostInfo.java:120)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.getHostInfoFromLibvirt(KVMHostInfo.java:207)
        at org.apache.cloudstack.utils.linux.KVMHostInfo.<init>(KVMHostInfo.java:68)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.initialize(LibvirtComputingResource.java:3766)
        at com.cloud.agent.Agent.sendStartup(Agent.java:541)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1212)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

2026-03-12 09:15:21,759 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from "host capabilities"
2026-03-12 09:15:21,762 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Retrieved value [2399999000] from "host capabilities". This corresponds to a CPU speed of [2399] MHz.
2026-03-12 09:15:21,762 INFO  [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching host CPU arch
2026-03-12 09:15:21,770 INFO  [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Host uses control group [cgroup2fs].
2026-03-12 09:15:21,770 INFO  [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Calculating the max shares of the host.
2026-03-12 09:15:21,770 INFO  [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) The max shares of the host is [460608].
2026-03-12 09:15:21,841 WARN  [utils.script.Script] (Agent-Handler-1:[]) (logid:) Execution of process [105068] for command [/bin/bash -c dpkg -l nbdkit ] failed.
2026-03-12 09:15:21,842 WARN  [utils.script.Script] (Agent-Handler-1:[]) (logid:) Process [105068] for command [/bin/bash -c dpkg -l nbdkit ] encountered the error: [1].
2026-03-12 09:15:21,844 WARN  [utils.script.Script] (Agent-Handler-1:[]) (logid:) Execution of process [105069] for command [/bin/bash -c ovftool --version ] failed.
2026-03-12 09:15:21,844 WARN  [utils.script.Script] (Agent-Handler-1:[]) (logid:) Process [105069] for command [/bin/bash -c ovftool --version ] encountered the error: [127].
2026-03-12 09:15:21,844 INFO  [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Attempting to create storage pool 543daf9e-d4d8-4b01-bce2-34ff5333e3b4 (Filesystem) in libvirt
2026-03-12 09:15:21,845 INFO  [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Found existing defined storage pool 543daf9e-d4d8-4b01-bce2-34ff5333e3b4, using it.
2026-03-12 09:15:21,845 INFO  [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Trying to fetch storage pool 543daf9e-d4d8-4b01-bce2-34ff5333e3b4 from libvirt
2026-03-12 09:15:22,869 INFO  [cloud.agent.Agent] (Agent-Handler-2:[]) (logid:) Process agent startup answer, agent [id: 0, uuid: null, name: null] connected to the server
2026-03-12 09:15:22,869 ERROR [cloud.agent.Agent] (Agent-Handler-2:[]) (logid:) Error parsing task java.lang.NullPointerException
        at java.base/java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
        at java.base/java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1006)
        at java.base/java.util.Properties.put(Properties.java:1304)
        at java.base/java.util.Properties.setProperty(Properties.java:232)
        at com.cloud.agent.dao.impl.PropertiesStorage.persist(PropertiesStorage.java:55)
        at com.cloud.agent.AgentShell.setPersistentProperty(AgentShell.java:215)
        at com.cloud.agent.Agent.setUuid(Agent.java:422)
        at com.cloud.agent.Agent.processStartupAnswer(Agent.java:687)
        at com.cloud.agent.Agent.processResponse(Agent.java:931)
        at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1219)
        at com.cloud.utils.nio.Task.call(Task.java:83)
        at com.cloud.utils.nio.Task.call(Task.java:29)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:840)

[DaanHoogland]

@miloserdoff,

• what is the network setup on this host?
• what exact version is this (20.0, 20.1, 20.2)?
• what is the contents of your agent.properties?

As for the ERROR logs containing reference to CPU speed, there are several ways that the cpu speed is tried to be retrieved. None of them seem to work on your Host;

• what is the OS (including version) of your host?