[
http://issues.apache.org/jira/browse/NUTCH-108?page=comments#action_12332265 ]
Doug Cutting commented on NUTCH-108:
------------------------------------
I think the patch is to replace the loop at the start of TaskTracker.close()
with something like:
while (tasks.size() != 0) {
TaskInProgress tip = (TaskInProgress)tasks.first();
tip.jobHasFinished();
}
I have not yet had time to test this.
> tasktracker crashs when reconnecting to a new jobtracker.
> ---------------------------------------------------------
>
> Key: NUTCH-108
> URL: http://issues.apache.org/jira/browse/NUTCH-108
> Project: Nutch
> Type: Bug
> Versions: 0.8-dev
> Reporter: Stefan Groschupf
> Priority: Critical
>
> 051008 213532 Lost connection to JobTracker [/192.168.200.100:7020].
> Retrying...
> 051008 213537 Client connection to 192.168.200.100:7020: starting
> 051008 213537 Client connection to 192.168.200.105:7030: closing
> 051008 213537 Server connection on port 7030 from 192.168.200.105: exiting
> 051008 213537 Server connection on port 7030 from 192.168.200.102: exiting
> 051008 213537 Client connection to 192.168.200.102:7030: closing
> 051008 213537 task_m_1iswra done; removing files.
> 051008 213537 Server connection on port 7030 from 192.168.200.101: exiting
> 051008 213537 Client connection to 192.168.200.101:7030: closing
> Exception in thread "main" java.util.ConcurrentModificationException
> at java.util.TreeMap$EntryIterator.nextEntry(TreeMap.java:1026)
> at java.util.TreeMap$ValueIterator.next(TreeMap.java:1057)
> at org.apache.nutch.mapred.TaskTracker.close(TaskTracker.java:134)
> at org.apache.nutch.mapred.TaskTracker.run(TaskTracker.java:285)
> at org.apache.nutch.mapred.TaskTracker.main(TaskTracker.java:629)
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