From: "Sławomir Skowron" <szibis@gmail.com>
To: Yehuda Sadeh <yehuda@inktank.com>
Cc: Gregory Farnum <greg@inktank.com>, Sage Weil <sage@inktank.com>,
"ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: Re: RGW Blocking on 1-2 PG's - argonaut
Date: Wed, 6 Mar 2013 22:32:24 +0100 [thread overview]
Message-ID: <6945629316976850154@unknownmsgid> (raw)
In-Reply-To: <CAC-hyiGR7Ci4wnV+NAMd99gvS8J_s1RciMHZO09rKzy=qT-Kxw@mail.gmail.com>
Great, thanks. Now i understand everything.
Best Regards
SS
Dnia 6 mar 2013 o godz. 15:04 Yehuda Sadeh <yehuda@inktank.com> napisał(a):
> On Wed, Mar 6, 2013 at 5:06 AM, Sławomir Skowron <szibis@gmail.com> wrote:
>> Hi, i do some test, to reproduce this problem.
>>
>> As you can see, only one drive (each drive in same PG) is much more
>> utilize, then others, and there are some ops in queue on this slow
>> osd. This test is getting heads from s3 objects, alphabetically
>> sorted. This is strange. why this files is going in much part only
>> from this triple osd's.
>>
>> checking what osd are in this pg.
>>
>> ceph pg map 7.35b
>> osdmap e117008 pg 7.35b (7.35b) -> up [18,61,133] acting [18,61,133]
>>
>> On osd.61
>>
>> { "num_ops": 13,
>> "ops": [
>> { "description": "osd_sub_op(client.10376104.0:961532 7.35b
>> 2b11a75b\/2013-03-06-13-8700.1-ocdn\/head\/\/7 [] v 117008'1370134
>
> The ops log is slowing you down. Unless you really need it, set 'rgw
> enable ops log = false'. This is off by default in bobtail.
>
>
> Yehuda
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prev parent reply other threads:[~2013-03-06 21:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-04 11:02 RGW Blocking on 1-2 PG's - argonaut Sławomir Skowron
2013-03-04 14:16 ` Yehuda Sadeh
2013-03-04 16:13 ` Sławomir Skowron
2013-03-04 17:02 ` Sage Weil
2013-03-04 17:23 ` Sławomir Skowron
2013-03-04 17:25 ` Gregory Farnum
2013-03-04 17:42 ` Sławomir Skowron
2013-03-04 18:34 ` Sławomir Skowron
2013-03-06 13:06 ` Sławomir Skowron
2013-03-06 14:04 ` Yehuda Sadeh
2013-03-06 21:32 ` Sławomir Skowron [this message]
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