We have tried putting these on both side, but still facing same issue :( On Thursday, October 1, 2020 at 1:33:57 AM UTC+8 [email protected] wrote:
> ideally, on both sides, make it on one side usually is enough. > > El miércoles, 30 de septiembre de 2020 a las 3:22:00 UTC+2, > [email protected] escribió: > >> Thanks, are these setting to be applied on master side or slave or both? >> >> On Wednesday, September 30, 2020 at 12:15:23 AM UTC+8 [email protected] >> wrote: >> >>> >>> - Why does agent tries to connect to master when its already >>> connected? >>> >>> That suggests half-closed connections, it means that the agent loses the >>> connection with the Jenkins instance but the FIN notification never arrived >>> to the Jenkins instance so the connection is open in the Jenkins instance >>> side. It could be related to networks equipment and the policies that have >>> for open connections, the recommendation is to tune the TCP stack to keep >>> those connections open with traffic see >>> https://support.cloudbees.com/hc/en-us/articles/115001416548#7tcpretransmissiontimeoutossperhapsincrease >>> >>> El martes, 29 de septiembre de 2020 a las 10:47:22 UTC+2, >>> [email protected] escribió: >>> >>>> Hi Team, We are using JNLP to connect Mac agent to Linux master node. >>>> >>>> Jenkins agent keeps disconnecting frequently, and we are getting below >>>> logs in master. >>>> >>>> Can you please suggest how to resolve this? What are the steps to >>>> further triage the same. >>>> >>>> Some of the questions we are trying to answer is: >>>> >>>> - What is EOFException? >>>> - Why does agent tries to connect to master when its already >>>> connected? >>>> - Why does eventually the ping / connection fails? >>>> >>>> We keep seeing this pattern in logs too often and too frequently. Any >>>> help would be appreciated. >>>> >>>> Results are same even if we try any of the below options: >>>> >>>> - Connected using *Launch agent from Browser* >>>> - Connected by *starting automator* in Mac which runs shell/zsh to >>>> run agent.jar >>>> - Connected by running *plist* in Mac >>>> >>>> * Jenkins environment:* >>>> >>>> - Jenkins: 2.249.1 >>>> - Master Node: Linux RHEL 8.1 >>>> - Master Java Version: 1.8.0_242 >>>> - Slave System: macOS Catalina, Version 10.15.6 >>>> - Slave Java Version: 1.8.0_261 >>>> >>>> *Connection #xxx failed: java.io.EOFException Sep 29, 2020 2:45:21 AM >>>> INFO hudson.TcpSlaveAgentListener$ConnectionHandler run Accepted >>>> JNLP4-connect connection #xxx from x.x.x.x/x.x.x.x:57215 Sep 29, 2020 >>>> 2:45:21 AM >>>> INFO org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer on >>>> Recv[JNLP4-connect connection from x.x.x.x/x.x.x.x:57215] Refusing headers >>>> from remote: <agent_name> is already connected to this master. Rejecting >>>> this connection.Sep 29, 2020 2:45:31 AM >>>> INFO hudson.TcpSlaveAgentListener$ConnectionHandler runConnection #xxx >>>> failed: java.io.EOFException Sep 29, 2020 2:45:31 >>>> AM INFO hudson.TcpSlaveAgentListener$ConnectionHandler runAccepted >>>> JNLP4-connect connection #xxx from x.x.x.x/x.x.x.x:57218 Sep 29, 2020 >>>> 2:45:32 AM >>>> INFO org.jenkinsci.remoting.protocol.impl.ConnectionHeadersFilterLayer >>>> onRecv[JNLP4-connect connection from x.x.x.x/x.x.x.x] Refusing headers >>>> from >>>> remote: <agent_name> is already connected to this master. Rejecting this >>>> connection.Sep 29, 2020 2:45:32 AM INFO hudson.slaves.ChannelPinger$1 >>>> onDeadPing failed. Terminating the channel JNLP4-connect connection from >>>> x.x.x.x/x.x.x.x:57015. java.util.concurrent.TimeoutException: Ping started >>>> at 1601318492966 hasn't completed by 1601318732966 at >>>> hudson.remoting.PingThread.ping(PingThread.java:134) at >>>> hudson.remoting.PingThread.run(PingThread.java:90) * >>>> >>>> >>>> >>>> TIA >>>> >>>> >>>> >>> -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/c8522ac5-64f0-458f-b853-ac874d2ef6b6n%40googlegroups.com.
