GitHub user midhunpjos closed a discussion: KVM | Cloudstack Agent Disconnected
State Post Upgrade and Rollback
Hello Community,
I have tried a minor upgrade for cloudstack from 4.19.1 to 4.19.2, but the
upgrade faced some issues and had to rollback. Post this the agents got
disconnected and in logs below are observed.
How I can reissue the certificates in agent.
Management Logs
===================
2025-05-08 15:32:14,098 ERROR [c.c.u.n.Link]
(AgentManager-SSLHandshakeHandler-119:null) (logid:) SSL error caught during
wrap data: no cipher suites in common, for local address=/172.16.3.221:8250,
remote address=/172.16.3.106:46046.
2025-05-08 15:32:14,100 INFO [c.c.a.m.AgentManagerImpl]
(AgentManager-Handler-12:null) (logid:) Connection from /172.16.3.106 closed
but no cleanup was done.
Agent Logs
===================
2025-05-08 00:00:04,842 ERROR [utils.nio.Link] (main:null) (logid:) SSL error
caught during unwrap data: Received fatal alert: handshake_failure, for local
address=/172.16.3.106:49830, remote address=/172.16.3.221:8250. The client may
have invalid ca-certificates.
2025-05-08 00:00:04,842 ERROR [utils.nio.NioClient] (main:null) (logid:) SSL
Handshake failed while connecting to host: 172.16.3.221 port: 8250
2025-05-08 00:00:04,842 ERROR [utils.nio.NioConnection] (main:null) (logid:)
Unable to initialize the threads.
java.io.IOException: SSL Handshake failed while connecting to host:
172.16.3.221 port: 8250
at com.cloud.utils.nio.NioClient.init(NioClient.java:67)
at com.cloud.utils.nio.NioConnection.start(NioConnection.java:95)
at com.cloud.agent.Agent.start(Agent.java:297)
at com.cloud.agent.AgentShell.launchNewAgent(AgentShell.java:454)
at
com.cloud.agent.AgentShell.launchAgentFromClassInfo(AgentShell.java:431)
at com.cloud.agent.AgentShell.launchAgent(AgentShell.java:415)
at com.cloud.agent.AgentShell.start(AgentShell.java:511)
at com.cloud.agent.AgentShell.main(AgentShell.java:541)
2025-05-08 00:00:04,843 INFO [utils.nio.NioClient] (main:null) (logid:)
NioClient connection closed
2025-05-08 00:00:04,843 INFO [cloud.agent.Agent] (main:null) (logid:)
Attempted to connect to the server, but received an unexpected exception,
trying again...
com.cloud.utils.exception.NioConnectionException: SSL Handshake failed while
connecting to host: 172.16.3.221 port: 8250
at com.cloud.utils.nio.NioConnection.start(NioConnection.java:101)
at com.cloud.agent.Agent.start(Agent.java:297)
at com.cloud.agent.AgentShell.launchNewAgent(AgentShell.java:454)
at
com.cloud.agent.AgentShell.launchAgentFromClassInfo(AgentShell.java:431)
at com.cloud.agent.AgentShell.launchAgent(AgentShell.java:415)
at com.cloud.agent.AgentShell.start(AgentShell.java:511)
at com.cloud.agent.AgentShell.main(AgentShell.java:541)
Caused by: java.io.IOException: SSL Handshake failed while connecting to host:
172.16.3.221 port: 8250
at com.cloud.utils.nio.NioClient.init(NioClient.java:67)
at com.cloud.utils.nio.NioConnection.start(NioConnection.java:95)
... 6 more
GitHub link: https://github.com/apache/cloudstack/discussions/10836
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