From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josh Durgin Subject: Re: Unexpected behavior by ceph 0.48.2argonaut. Date: Wed, 07 Nov 2012 18:32:43 -0800 Message-ID: <509B19CB.7010300@inktank.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pa0-f46.google.com ([209.85.220.46]:45611 "EHLO mail-pa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752549Ab2KHCdG (ORCPT ); Wed, 7 Nov 2012 21:33:06 -0500 Received: by mail-pa0-f46.google.com with SMTP id hz1so1615951pad.19 for ; Wed, 07 Nov 2012 18:33:05 -0800 (PST) In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: hemant surale Cc: "ceph-devel@vger.kernel.org" On 11/07/2012 05:34 AM, hemant surale wrote: > I am not sure about my judgments but please help me out understanding > the result of following experiment carried out : - > > > Experiment : (3 node cluster, all have ceph v.0.48.2agonaut( after > building ceph from src code) + UBUNTU 12.04 + kernel 3.2.0 ) > ---------------------------------------------------------------------------------------------------------------------------------------------------------- > VM1 ( mon.0+ osd.0 +mds.0 ) VM2 (mon.1 + osd.1 + mds.1) VM3(mon.2) > - Cluster is up and HEALTH_OK > - Replication factor is 2. (by default all pools have > replication factor set to 2) > - After mounting "mount.ceph mon_addr:port :/ ~/cephfs " > , I created file inside mounted Dir "cephfs" . > - And able to see data on both OSD i.e. VM1(osd.0) and on > VM2(osd.1) as well as file is accessible . > - Then VM2 is made down & VM2 absence is verified with ceph -s . > - Even after VM1(osd.0 mds.0 mon.0) + VM3 (mon.2) was > live , I am unable to access the file . Was the cluster showing all pgs active+degraded after this, or did some stay inactive? > - I tried to remount the data on different Dir with > mount.ceph currently_live_mons:/ /home/hemant/xyz > - Even after that I was unable to access the file stored > on cluster. > ---------------------------------------------------------------------------------------------------------------------------------------------------------- > > - > Hemant Surale.