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From Lukas Kairies <lukas.xtree...@googlemail.com>
Subject Shutdown hook for FileSystems
Date Tue, 21 Jan 2014 10:36:34 GMT

I use Hadoop with XtreemFS (with a corresponding FileSystem 
implementation). The XtreemFS client uses several non-deamon Threads eg. 
for communication. Therefore the shutdown hooks do not start after a 
mapper/reducer is finished and the Child processes do not terminate.

My question:
Is there any way to determine if the mapper/reducer child processes do 
not need the file system any more?

Best regards,
Lukas K

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