From mboxrd@z Thu Jan 1 00:00:00 1970 From: udit agarwal Subject: Re: iozone test crashed on ceph Date: Wed, 6 Jun 2012 02:31:56 +0000 (UTC) Message-ID: References: <0F43C46A9543420FBEB081A55ACD1FB0@inktank.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from plane.gmane.org ([80.91.229.3]:57749 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752709Ab2FFCcO (ORCPT ); Tue, 5 Jun 2012 22:32:14 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Sc62d-0004AD-8m for ceph-devel@vger.kernel.org; Wed, 06 Jun 2012 04:32:12 +0200 Received: from en-439-0215-006.esc.auckland.ac.nz ([130.216.209.143]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 06 Jun 2012 04:32:11 +0200 Received: from fzdudit by en-439-0215-006.esc.auckland.ac.nz with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 06 Jun 2012 04:32:11 +0200 Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org Hi, Thanks for your reply. After you hinted that this problem may have caused due to using record size of length 4k. Then, I ran iozone test on a 5m file with record length 4k and to my surprise, the ceph system again hanged up. Then, I tried same with record lengths from 8k to 1m and everything worked fine for these cases with 5 MB file. Now, I have already executed the iozone test with 5G file and with record sizes from 8k to 16m and will see what happens!! --Udit Agarwal