詹金斯-问题：hudson.model.Queue $ MaintainTask失败

问题描述

我有一个问题：（正在等待-等待下一个可用的执行程序）

控制台日志：

Timer task hudson.model.Queue$MaintainTask@fb3e676 failed
java.lang.ClassCastException: class java.lang.Integer cannot be cast to class hudson.slaves.NodeProperty (java.lang.Integer is in module java.base of loader 'bootstrap'; hudson.slaves.NodeProperty is in unnamed module of loader org.eclipse.jetty.webapp.WebAppClassLoader @7364985f)
at hudson.model.Node.canTake(Node.java:409)
at hudson.model.Queue$JobOffer.getCauseOfBlockage(Queue.java:276)
at hudson.model.Queue.maintain(Queue.java:1633)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:2904)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:91)
at jenkins.security.ImpersonatingScheduledExecutorService$1.run(ImpersonatingScheduledExecutorService.java:58)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)

解决方法

这似乎与Jenkins错误有关：FATAL: java.lang.Integer cannot be cast to hudson.slaves.NodeProperty。您最近升级了詹金斯吗？

• 转到您的Jenkins安装目录的根文件夹。
• 在config.xml中寻找<globalNodeProperties>
• 如果看起来像这样，则可能是未正确升级：

<globalNodeProperties>
  <hudson.slaves.EnvironmentVariablesNodeProperty/>
  <int>2</int>
  <string></string>
  <string></string>
  ...
</globalNodeProperties>

• XML格式已更改，看起来应该像这样（注意int不再是globalNodeProperty，也就是您所得到的例外：

  <globalNodeProperties>
    <hudson.slaves.EnvironmentVariablesNodeProperty>
      <envVars serialization="custom">
        <unserializable-parents/>
        <tree-map>
          <default>
            <comparator class="hudson.util.CaseInsensitiveComparator" reference="../../../../../../views/listView/jobNames/comparator"/>
          </default>
          <int>2</int>
          <string></string>
          <string></string>
          ...
        </tree-map>
      </envVars>
    </hudson.slaves.EnvironmentVariablesNodeProperty>
  </globalNodeProperties>