From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Yan, Zheng" Subject: Re: [PATCH 0/2] fixes for undeletable empty directory Date: Thu, 06 Dec 2012 23:09:11 +0800 Message-ID: <50C0B517.303@intel.com> References: <1354608588-25840-1-git-send-email-zheng.z.yan@intel.com> <50BF093F.4060709@m-privacy.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Return-path: Received: from mga11.intel.com ([192.55.52.93]:62153 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754489Ab2LFPJg (ORCPT ); Thu, 6 Dec 2012 10:09:36 -0500 In-Reply-To: <50BF093F.4060709@m-privacy.de> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Amon Ott Cc: ceph-devel@vger.kernel.org On 12/05/2012 04:43 PM, Amon Ott wrote: > Am 04.12.2012 09:09, schrieb Yan, Zheng: >> These two patches fix MDS restart issues that may corrupt the fragstat accounting >> and cause undeletable empty directory. These two patches, together with the patch >> "mds: fix journaling issue regarding rstat accounting", have passed overnight >> "fsstress + restart MDS every 120s" test. No undeletable directory was found. >> >> These patches are also in: >> git://github.com/ukernel/ceph.git wip-mds > > Thank you very much for working on MDS issues, your work gave me some > hope that our very long standing crashes at MDS failover could be fixed > soon. Hi, Sorry for the delay > > Right now, we have our four node test cluster running with 0.55 and your > latest patches. Hopefully, today's stress test will work fine. > > One question: with your latest patches, is a multiple MDS setup stable > in your tests? So far, we only tried with max mds = 1. As our work load > writes many small files, some load sharing for MDS would be nice to > have. I would be willing to help with tests and reports, if needed. > No, multiple MDS setup is still unstable. Regards Yan, Zheng > Amon Ott >