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Bug
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Resolution: Cannot Reproduce
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Major
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None
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Jenkins 1.454
matrixtieparent 1.1
We noticed problems with using label expression as "Node". In our case we used value "build&&machine (group of machine_1,...)". Once the build started, Jenkins started to loose the slave executors. They failed with:
SEVERE: Timer task hudson.model.Queue$MaintainTask@15db104e failed
java.lang.ClassCastException: hudson.model.labels.LabelExpression$And cannot be cast to hudson.model.labels.LabelAtom
at jenkins.model.Jenkins.getLabelAtom(Jenkins.java:1571)
at hudson.model.labels.LabelAtom.get(LabelAtom.java:224)
at hudson.model.labels.LabelExpressionParser.term6(LabelExpressionParser.java:208)
at hudson.model.labels.LabelExpressionParser.term5(LabelExpressionParser.java:164)
at hudson.model.labels.LabelExpressionParser.term4(LabelExpressionParser.java:136)
at hudson.model.labels.LabelExpressionParser.term3(LabelExpressionParser.java:113)
at hudson.model.labels.LabelExpressionParser.term2(LabelExpressionParser.java:83)
at hudson.model.labels.LabelExpressionParser.term1(LabelExpressionParser.java:60)
at hudson.model.labels.LabelExpressionParser.expr(LabelExpressionParser.java:50)
at hudson.model.Label.parseExpression(Label.java:509)
at jenkins.model.Jenkins.getLabel(Jenkins.java:1553)
at hudson.model.AbstractProject.getAssignedLabel(AbstractProject.java:356)
at hudson.model.queue.MappingWorksheet$WorkChunk.getAssignedLabel(MappingWorksheet.java:202)
at hudson.model.queue.MappingWorksheet$WorkChunk.<init>(MappingWorksheet.java:185)
at hudson.model.queue.MappingWorksheet$WorkChunk.<init>(MappingWorksheet.java:157)
at hudson.model.queue.MappingWorksheet.<init>(MappingWorksheet.java:375)
at hudson.model.queue.MappingWorksheet.<init>(MappingWorksheet.java:303)
at hudson.model.Queue.maintain(Queue.java:1033)
at hudson.model.Queue$MaintainTask.doRun(Queue.java:1759)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Mar 26, 2013 1:12:52 PM hudson.triggers.SafeTimerTask run
I checked that running the following groovy script from console fails to our matrix project with the "matrix tie parent" plugin config above:
import jenkins.model.*; for(item in Jenkins.instance.items) { println("JOB: '" + item.name + "'"); if (item.getAssignedLabel() != null) { println("LABEL: '" + item.getAssignedLabel() + "'"); } }
The outcome is that all executors die (https://wiki.jenkins-ci.org/display/JENKINS/Dead+Executor) and we cannot restart those threads through the UI. Only after I changed the "Node" to "master" I was able to restart the executors. So this really kills the whole Jenkins instance.
