From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-2?Q?S=B3awomir_Skowron?= Subject: Re: RGW Blocking on 1-2 PG's - argonaut Date: Wed, 6 Mar 2013 22:32:24 +0100 Message-ID: <6945629316976850154@unknownmsgid> References: Mime-Version: 1.0 (1.0) Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-ia0-f176.google.com ([209.85.210.176]:38433 "EHLO mail-ia0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751354Ab3CFVc2 convert rfc822-to-8bit (ORCPT ); Wed, 6 Mar 2013 16:32:28 -0500 Received: by mail-ia0-f176.google.com with SMTP id i18so7779316iac.21 for ; Wed, 06 Mar 2013 13:32:27 -0800 (PST) In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Yehuda Sadeh Cc: Gregory Farnum , Sage Weil , "ceph-devel@vger.kernel.org" Great, thanks. Now i understand everything. Best Regards SS Dnia 6 mar 2013 o godz. 15:04 Yehuda Sadeh napisa=C5= =82(a): > On Wed, Mar 6, 2013 at 5:06 AM, S=C5=82awomir Skowron 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 =3D false'. This is off by default in bobtail. > > > Yehuda -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html