Arun C Murthy created MAPREDUCE-4605:
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Summary: "Text File Busy" errors launching MR tasks
Key: MAPREDUCE-4605
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4605
Project: Hadoop Map/Reduce
Issue Type: Bug
Affects Versions: 0.22.0
Reporter: Todd Lipcon
Assignee: Andy Isaacson
Fix For: 1.2.0, 0.23.3, 2.2.0-alpha
Some very small percentage of tasks fail with a "Text file busy" error.
The following was the original diagnosis:
{quote}
Our use of PrintWriter in TaskController.writeCommand is unsafe, since that
class swallows all IO exceptions. We're not currently checking for errors,
which I'm seeing result in occasional task failures with the message "Text file
busy" - assumedly because the close() call is failing silently for some reason.
{quote}
.. but turned out to be another issue as well (see below)
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