From: Fyodor Ustinov <ufm@ufm.su>
To: Sage Weil <sage@newdream.net>
Cc: ceph-devel@vger.kernel.org
Subject: Re: read performance not perfect
Date: Fri, 05 Aug 2011 02:38:32 +0300 [thread overview]
Message-ID: <4E3B2D78.5060605@ufm.su> (raw)
In-Reply-To: <Pine.LNX.4.64.1108041252230.26398@cobra.newdream.net>
On 08/04/2011 10:53 PM, Sage Weil wrote:
>
> The current patches are on top of v3.0, but you should be able to rebase
> the readahead stuff on top of anything reasonably recent.
>
> sage
As usual.
cluster - latest 0.32 from your ubuntu rep.
client - latest git-pulled kernel.
dd file from cluster to /dev/null and press ctrl-c. In syslog:
[ 12.950114] libceph: mon0 10.5.51.230:6789 connection failed
[ 19.971512] libceph: client4119 fsid af9be081-9777-e2cc-8988-ba02fff0f390
[ 19.971845] libceph: mon0 10.5.51.230:6789 session established
[ 92.891202] libceph: try_read bad con->in_tag = -108
[ 92.891258] libceph: osd5 10.5.51.145:6801 protocol error, garbage tag
[ 114.508350] libceph: try_read bad con->in_tag = 122
[ 114.508406] libceph: osd1 10.5.51.141:6800 protocol error, garbage tag
[ 119.077246] libceph: try_read bad con->in_tag = -39
[ 119.077301] libceph: osd7 10.5.51.147:6801 protocol error, garbage tag
WBR,
Fyodor.
next prev parent reply other threads:[~2011-08-04 23:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-18 4:51 read performance not perfect huang jun
2011-07-18 17:14 ` Sage Weil
2011-07-20 0:21 ` huang jun
[not found] ` <CABAwU-YKmEC=umFLzDb-ykPbzQ9s3sKoUmQbkumExrXEwyveNA@mail.gmail.com>
2011-08-04 15:51 ` Sage Weil
2011-08-04 19:36 ` Fyodor Ustinov
2011-08-04 19:53 ` Sage Weil
2011-08-04 23:38 ` Fyodor Ustinov [this message]
2011-08-05 1:26 ` Sage Weil
2011-08-05 6:34 ` Fyodor Ustinov
2011-08-05 16:07 ` Sage Weil
2011-08-05 19:30 ` Fyodor Ustinov
2011-08-05 19:35 ` Gregory Farnum
2011-08-05 20:17 ` Sage Weil
2011-08-05 21:12 ` Fyodor Ustinov
2011-08-08 17:52 ` Fyodor Ustinov
2011-08-08 19:14 ` Sage Weil
2011-08-06 11:03 ` Fyodor Ustinov
2011-08-06 19:08 ` Sage Weil
2011-08-09 3:56 ` huang jun
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