From: Fyodor Ustinov <ufm@ufm.su>
To: Ted Ts'o <tytso@mit.edu>
Cc: ceph-devel@vger.kernel.org
Subject: Re: Kernel 3.0.0 + ext4 + ceph == ...
Date: Sat, 30 Jul 2011 20:16:00 +0300 [thread overview]
Message-ID: <4E343C50.1000106@ufm.su> (raw)
In-Reply-To: <20110730165001.GI7361@thunk.org>
Ted Ts'o <tytso <at> mit.edu> writes:
> Right, sorry, I missed that. And just to be clear this wasn't an -rc
> kernel but 3.0 final, right?
Yes.
>
> Hmm, looking through recent commits which will shortly be merged into
> 3.1, this one leaps out, but I'm not sure it's the cause --- how full
> was your disk at the end of this exercise?
root@osd0:~# df -h /osd.0/
Filesystem Size Used Avail Use% Mounted on
/dev/sdc1 3.6T 1.3T 2.2T 37% /osd.0
root@osd0:~#
>
> I haven't looked at Ceph in quite a while. As I recall it was
> primarily doing Direct I/O writes, correct? Or does it use buffered
> I/O? And does it use the new "punch" ioctl to release blocks from the
> middle of a file? Ext4 added punch support in 3.0, and there are some
> bug fixes that are going into 3.1, but I don't think there were any
> that would lead to the failure mode you are seeing.
Ted, I'm sorry, I'm not a developer. I can not answer these questions,
but I can try build 3.1
WBR,
Fyodor
next prev parent reply other threads:[~2011-07-30 17:16 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-30 9:38 Kernel 3.0.0 + ext4 + ceph == Fyodor Ustinov
2011-07-30 14:37 ` Christian Brunner
2011-07-30 14:53 ` Fwd: " Christian Brunner
2011-11-15 15:46 ` Eric Sandeen
2011-07-30 15:34 ` Theodore Tso
2011-07-30 16:36 ` Fyodor Ustinov
2011-07-30 16:50 ` Ted Ts'o
2011-07-30 17:16 ` Fyodor Ustinov [this message]
2011-07-30 17:21 ` Sage Weil
2011-07-30 17:27 ` Fyodor Ustinov
2011-07-30 17:54 ` Fyodor Ustinov
2011-07-30 22:19 ` Ted Ts'o
2011-07-31 4:54 ` Sage Weil
2011-07-31 11:33 ` Fyodor Ustinov
2011-07-31 17:04 ` Sage Weil
2011-07-31 17:32 ` Fyodor Ustinov
2011-07-31 20:16 ` Fyodor Ustinov
2011-07-31 20:42 ` Sage Weil
2011-08-01 10:53 ` Theodore Tso
2011-08-01 16:20 ` Sage Weil
2011-08-03 14:16 ` Christian Brunner
2011-08-03 15:41 ` Yehuda Sadeh Weinraub
2011-08-08 20:07 ` Christian Brunner
2011-08-18 9:19 ` Christian Brunner
2011-07-30 18:33 ` Christian Brunner
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