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From Arpit Agarwal <aagar...@hortonworks.com>
Subject Fwd: umount bad disk
Date Thu, 13 Feb 2014 17:09:29 GMT
bcc'ed hadoop-user

Lei, perhaps hbase-user can help.

---------- Forwarded message ----------
From: lei liu <liulei412@gmail.com>
Date: Thu, Feb 13, 2014 at 1:04 AM
Subject: umount bad disk
To: user@hadoop.apache.org

I use HBase0.96 and CDH4.3.1.

I use Short-Circuit Local Read:


When one disk is bad, because the RegionServer open some file on the
disk, so I don't run "umount", example:
sudo umount -f /disk10
umount2: Device or resource busy

umount: /disk10: device is busy
umount2: Device or resource busy
umount: /disk10: device is busy

I must stop RegionServer in order to run umount command.

How can don't stop RegionServer and delete the bad disk.



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