From mboxrd@z Thu Jan 1 00:00:00 1970 From: Denis Fondras Subject: Is Ceph recovery able to handle massive crash Date: Sat, 05 Jan 2013 13:19:09 +0100 Message-ID: <50E81A3D.5070100@ledeuns.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from bmenez.pck.nerim.net ([213.41.245.173]:39409 "EHLO mail.ledeuns.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751277Ab3AEM0w (ORCPT ); Sat, 5 Jan 2013 07:26:52 -0500 Received: from [IPv6:2001:7a8:b5ad::10:10] (unknown [IPv6:2001:7a8:b5ad::10:10]) by mail.ledeuns.net (Postfix) with ESMTPSA id 0563693264 for ; Sat, 5 Jan 2013 13:19:39 +0100 (CET) Sender: ceph-devel-owner@vger.kernel.org List-ID: To: "ceph-devel@vger.kernel.org" Hello all, I'm using Ceph 0.55.1 on a Debian Wheezy (1 mon, 1 mds et 3 osd over btrfs) and every once in a while, an OSD process crashes (almost never the same osd crashes). This time I had 2 osd crash in a row and so I only had one replicate. I could bring the 2 crashed osd up and it started to recover. Unfortunately, the "source" osd crashed while recovering and now I have a some lost PGs. If I happen to bring the primary OSD up again, can I imagine the lost PG will be recovered too ? Regards, Denis