Question

我的Jenkins（1.599）实例启动，所有从属服务器（Win Server 2012 R2上的Windows服务）都报告为在线。

大约5分钟后，奴隶会暂时下降。在UI中，它们显示为脱机。然而，它们很快就会重新启动，并显示为在线。

我尝试设置ping时间（Dhudson.slaves.ChannelPinger.pingInterval = -1）但没有成功。

日志文件还有其他线索吗？

Master log
-------------------
Feb 26, 2016 7:11:56 AM hudson.TcpSlaveAgentListener$ConnectionHandler run
INFO: Accepted connection #72172 from /23.100.39.54:14340
Feb 26, 2016 7:11:56 AM jenkins.slaves.JnlpSlaveHandshake error
WARNING: TCP slave agent connection handler #72172 with /23.100.39.54:14340 is aborted: AZSPDF01 is already connected to this master. Rejecting this connection.
Feb 26, 2016 7:11:56 AM hudson.TcpSlaveAgentListener$ConnectionHandler run
INFO: Accepted connection #72173 from /23.100.39.54:12537
Feb 26, 2016 7:11:56 AM jenkins.slaves.JnlpSlaveHandshake error
WARNING: TCP slave agent connection handler #72173 with /23.100.39.54:12537 is aborted: AZSPDF01 is already connected to this master. Rejecting this connection.
Feb 26, 2016 7:11:56 AM hudson.TcpSlaveAgentListener$ConnectionHandler run
INFO: Accepted connection #72174 from /23.100.39.54:12538
Feb 26, 2016 7:11:56 AM hudson.TcpSlaveAgentListener$ConnectionHandler run
WARNING: Connection #72174 failed
java.io.IOException: An existing connection was forcibly closed by the remote host
    at sun.nio.ch.SocketDispatcher.read0(Native Method)
    at sun.nio.ch.SocketDispatcher.read(Unknown Source)
    at sun.nio.ch.IOUtil.readIntoNativeBuffer(Unknown Source)
    at sun.nio.ch.IOUtil.read(Unknown Source)
    at sun.nio.ch.SocketChannelImpl.read(Unknown Source)
    at sun.nio.ch.SocketAdaptor$SocketInputStream.read(Unknown Source)
    at sun.nio.ch.ChannelInputStream.read(Unknown Source)
    at java.io.InputStream.read(Unknown Source)
    at sun.nio.ch.ChannelInputStream.read(Unknown Source)
    at java.io.DataInputStream.readUnsignedShort(Unknown Source)
    at java.io.DataInputStream.readUTF(Unknown Source)
    at java.io.DataInputStream.readUTF(Unknown Source)
    at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:150)

Slave log
------------------

Feb 07, 2016 1:32:56 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Trying protocol: JNLP2-connect
Feb 07, 2016 1:32:56 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connected
Feb 07, 2016 1:38:16 PM hudson.remoting.SynchronousCommandTransport$ReaderThread run
SEVERE: I/O error in channel channel
java.net.SocketException: Connection reset
    at java.net.SocketInputStream.read(Unknown Source)
    at java.net.SocketInputStream.read(Unknown Source)
    at java.io.BufferedInputStream.fill(Unknown Source)
    at java.io.BufferedInputStream.read(Unknown Source)
    at hudson.remoting.FlightRecorderInputStream.read(FlightRecorderInputStream.java:82)
    at hudson.remoting.ChunkedInputStream.readHeader(ChunkedInputStream.java:72)
    at hudson.remoting.ChunkedInputStream.readUntilBreak(ChunkedInputStream.java:103)
    at hudson.remoting.ChunkedCommandTransport.readBlock(ChunkedCommandTransport.java:39)
    at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:34)
    at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:48)

Answer 1

这些问题很难调试。我在Linux主/从（https://issues.jenkins-ci.org/browse/JENKINS-14332）上有类似的一个，我花了一段时间才能使它稳定。
一些让你入门的地方：

詹金斯奴隶不断失去联系

1 个答案: