[ http://issues.apache.org/jira/browse/HADOOP-265?page=all ]
Hairong Kuang updated HADOOP-265:
---------------------------------
Attachment: mapred_disk.patch
In this patch, if a task tracker finds out that any of its local directories
becomes not readable or writable, it logs the error. If all of its local
directories are not readable/writable, it reports the problem to its job
tracker and then aborts. When the job tracker receives the error report, it
logs the error.
A task tracker detects disk problem at startup time and before it starts a new
task. A task tracker will not start if all its local directories are not
readable or writable.
> Abort tasktracker if it can not write to its local directories
> --------------------------------------------------------------
>
> Key: HADOOP-265
> URL: http://issues.apache.org/jira/browse/HADOOP-265
> Project: Hadoop
> Type: Bug
> Components: mapred
> Versions: 0.3
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.3
> Attachments: mapred_disk.patch
>
> Currently if a task tracker is not able to write to any of its local
> directories, it continues to run and all the tasks assigned to it fail.
> A task tracker should not start upif it has a problem reading/writing any of
> its local directories. It should abort if it gets the problem at run time.
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