Dead executor threads

[Michael Powell]

Hello,

I've been experiencing frequently Dead executor Threads. Sometimes restarting the service fixes things but not always.

It happens to be on the last project in the list, but don't know whether that has anything to do with anything.

java.lang.ArrayIndexOutOfBoundsException: Assertion error: failing to load #10 DESC: lo=61,hi=55,size=62,size2=62
	at jenkins.model.lazy.AbstractLazyLoadRunMap.search(AbstractLazyLoadRunMap.java:418)
	at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:207)
	at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:100)
	at hudson.model.Job.getLastBuildsOverThreshold(Job.java:856)
	at hudson.model.Job.getEstimatedDuration(Job.java:863)
	at hudson.model.queue.MappingWorksheet.<init>(MappingWorksheet.java:320)
	at hudson.model.queue.MappingWorksheet.<init>(MappingWorksheet.java:303)
	at hudson.model.Queue.maintain(Queue.java:1033)
	at hudson.model.Queue.pop(Queue.java:861)
	at hudson.model.Executor.grabJob(Executor.java:284)
	at hudson.model.Executor.run(Executor.java:205)