From: Dimitri Maziuk <dmaziuk@bmrb.wisc.edu>
To: ceph-devel@vger.kernel.org
Subject: Re: handling fs errors
Date: Tue, 22 Jan 2013 12:29:13 -0600 [thread overview]
Message-ID: <50FEDA79.2090203@bmrb.wisc.edu> (raw)
In-Reply-To: <alpine.DEB.2.00.1301212200031.29915@cobra.newdream.net>
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On 01/22/2013 12:05 AM, Sage Weil wrote:
> We observed an interesting situation over the weekend. The XFS volume
> ceph-osd locked up (hung in xfs_ilock) for somewhere between 2 and 4
> minutes.
...
FWIW I see this often enough on cheap sata drives: they've a failure
mode that makes sata driver timeout, reset the link, resend the command,
rinse, lather, repeat. (You usually get "slow to respond, please be
patient" and/or "resetting link" in syslog & console.) It's at the low
enough level to freeze the whole system for minutes.
--
Dimitri Maziuk
Programmer/sysadmin
BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu
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next prev parent reply other threads:[~2013-01-22 18:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-22 6:05 handling fs errors Sage Weil
2013-01-22 6:12 ` Yehuda Sadeh
2013-01-22 13:12 ` Wido den Hollander
2013-01-22 17:59 ` Gregory Farnum
2013-01-22 7:25 ` Andrey Korolyov
2013-01-22 8:09 ` Chen, Xiaoxi
2013-01-22 18:29 ` Dimitri Maziuk [this message]
2013-01-22 23:09 ` Sage Weil
2013-01-22 22:20 ` Andrey Korolyov
2013-01-22 23:08 ` Sage Weil
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