GitHub user TheKunalSen created a discussion: After reboot host connection issue
my setup was working well untill i rebooted all the servers and now two of my hosts are in alert mode and cant connect to the management but the the third one got connected i am getting logs like this in two of my hosts ``` 2026-06-17 12:16:19,938 INFO [cloud.agent.Agent] (Agent-Handler-2:[]) (logid:) Process agent startup answer, agent [id: 0, uuid: , name: ] connected to the server 2026-06-17 12:16:19,940 INFO [cloud.agent.Agent] (Agent-Handler-2:[]) (logid:) Startup Response Received: agent [id: 0, uuid: , name: ] 2026-06-17 12:16:20,086 INFO [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-2:[]) (logid:4a2bdde0) Attempting to create storage pool 81ecd9fd-9cdf-34cb-b99d-51d0e2cf3a0c (NetworkFilesystem) in libvirt 2026-06-17 12:16:20,088 INFO [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-2:[]) (logid:4a2bdde0) Found existing defined storage pool 81ecd9fd-9cdf-34cb-b99d-51d0e2cf3a0c, using it. 2026-06-17 12:16:20,095 INFO [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-2:[]) (logid:4a2bdde0) Trying to fetch storage pool 81ecd9fd-9cdf-34cb-b99d-51d0e2cf3a0c from libvirt 2026-06-17 12:16:22,053 INFO [cloud.agent.Agent] (Agent-Handler-1:[]) (logid:) Connected to the host: 172.16.17.201 2026-06-17 12:16:25,145 INFO [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Detected agent disconnect event, running through 0 disconnect hooks 2026-06-17 12:16:25,145 INFO [cloud.agent.Agent] (Agent-Handler-1:[]) (logid:) Lost connection to host: 172.16.17.201. Attempting reconnection while we still have 0 commands in progress. 2026-06-17 12:16:25,147 INFO [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) NioClient connection closed 2026-06-17 12:16:30,147 INFO [cloud.agent.Agent] (Agent-Handler-1:[]) (logid:) Reconnecting to host: 172.16.17.201 2026-06-17 12:16:30,148 INFO [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) Connecting to 172.16.17.201:8250 2026-06-17 12:16:30,148 INFO [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) Connected to 172.16.17.201:8250 2026-06-17 12:16:30,149 INFO [utils.nio.Link] (Agent-Handler-1:[]) (logid:) Conf file found: /etc/cloudstack/agent/agent.properties 2026-06-17 12:16:30,240 INFO [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) SSL: Handshake done 2026-06-17 12:16:30,312 INFO [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from command "lscpu". 2026-06-17 12:16:30,349 INFO [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Command [lscpu | grep -i 'Model name' | head -n 1 | egrep -o '[[:digit:]].[[:digit:]]+GHz' | sed 's/GHz//g'] resulted in the value [2100] for CPU speed. 2026-06-17 12:16:30,349 INFO [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching host CPU arch 2026-06-17 12:16:30,361 INFO [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Host uses control group [cgroup2fs]. 2026-06-17 12:16:30,361 INFO [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Calculating the max shares of the host. 2026-06-17 12:16:30,361 INFO [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) The max shares of the host is [50400]. 2026-06-17 12:16:30,431 WARN [utils.script.Script] (Agent-Handler-1:[]) (logid:) Execution of process [12494] for command [/bin/bash -c virt-v2v --version ] failed. 2026-06-17 12:16:30,431 WARN [utils.script.Script] (Agent-Handler-1:[]) (logid:) Process [12494] for command [/bin/bash -c virt-v2v --version ] encountered the error: [127]. 2026-06-17 12:16:30,457 WARN [utils.script.Script] (Agent-Handler-1:[]) (logid:) Execution of process [12514] for command [/bin/bash -c ovftool --version ] failed. 2026-06-17 12:16:30,457 WARN [utils.script.Script] (Agent-Handler-1:[]) (logid:) Process [12514] for command [/bin/bash -c ovftool --version ] encountered the error: [127]. 2026-06-17 12:16:32,018 INFO [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Attempting to create storage pool 2eb31580-54fb-4573-8401-083fbe23dcb7 (Filesystem) in libvirt 2026-06-17 12:16:32,042 INFO [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Found existing defined storage pool 2eb31580-54fb-4573-8401-083fbe23dcb7, using it. 2026-06-17 12:16:32,042 INFO [kvm.storage.LibvirtStorageAdaptor] (Agent-Handler-1:[]) (logid:) Trying to fetch storage pool 2eb31580-54fb-4573-8401-083fbe23dcb7 from libvirt 2026-06-17 12:16:33,107 INFO [cloud.agent.Agent] (Agent-Handler-2:[]) (logid:) Process agent startup answer, agent [id: 0, uuid: , name: ] connected to the server 2026-06-17 12:16:33,109 INFO [cloud.agent.Agent] (Agent-Handler-2:[]) (logid:) Startup Response Received: agent [id: 0, uuid: , name: ] 2026-06-17 12:16:33,250 INFO [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-4:[]) (logid:902a941f) Attempting to create storage pool 81ecd9fd-9cdf-34cb-b99d-51d0e2cf3a0c (NetworkFilesystem) in libvirt 2026-06-17 12:16:33,270 INFO [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-4:[]) (logid:902a941f) Found existing defined storage pool 81ecd9fd-9cdf-34cb-b99d-51d0e2cf3a0c, using it. 2026-06-17 12:16:33,276 INFO [kvm.storage.LibvirtStorageAdaptor] (AgentRequest-Handler-4:[]) (logid:902a941f) Trying to fetch storage pool 81ecd9fd-9cdf-34cb-b99d-51d0e2cf3a0c from libvirt 2026-06-17 12:16:35,241 INFO [cloud.agent.Agent] (Agent-Handler-1:[]) (logid:) Connected to the host: 172.16.17.201 2026-06-17 12:16:38,325 INFO [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Detected agent disconnect event, running through 0 disconnect hooks 2026-06-17 12:16:38,325 INFO [cloud.agent.Agent] (Agent-Handler-1:[]) (logid:) Lost connection to host: 172.16.17.201. Attempting reconnection while we still have 0 commands in progress. 2026-06-17 12:16:38,327 INFO [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) NioClient connection closed 2026-06-17 12:16:43,328 INFO [cloud.agent.Agent] (Agent-Handler-1:[]) (logid:) Reconnecting to host: 172.16.17.201 2026-06-17 12:16:43,328 INFO [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) Connecting to 172.16.17.201:8250 2026-06-17 12:16:43,329 INFO [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) Connected to 172.16.17.201:8250 2026-06-17 12:16:43,329 INFO [utils.nio.Link] (Agent-Handler-1:[]) (logid:) Conf file found: /etc/cloudstack/agent/agent.properties 2026-06-17 12:16:43,420 INFO [utils.nio.NioClient] (Agent-Handler-1:[]) (logid:) SSL: Handshake done 2026-06-17 12:16:43,471 INFO [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching CPU speed from command "lscpu". 2026-06-17 12:16:43,510 INFO [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Command [lscpu | grep -i 'Model name' | head -n 1 | egrep -o '[[:digit:]].[[:digit:]]+GHz' | sed 's/GHz//g'] resulted in the value [2100] for CPU speed. 2026-06-17 12:16:43,510 INFO [utils.linux.KVMHostInfo] (Agent-Handler-1:[]) (logid:) Fetching host CPU arch 2026-06-17 12:16:43,521 INFO [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Host uses control group [cgroup2fs]. 2026-06-17 12:16:43,521 INFO [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) Calculating the max shares of the host. 2026-06-17 12:16:43,521 INFO [kvm.resource.LibvirtComputingResource] (Agent-Handler-1:[]) (logid:) The max shares of the host is ``` its like connecting and disconnecting <img width="1593" height="295" alt="image" src="https://github.com/user-attachments/assets/2f2ecfda-fbac-42c0-a101-1e25c1c52731"; /> GitHub link: https://github.com/apache/cloudstack/discussions/13440 ---- This is an automatically sent email for [email protected]. 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