From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vyacheslav Dubeyko Subject: Re: Which version of nilfs do you use? Date: Fri, 28 Dec 2012 10:14:49 +0400 Message-ID: <1356675289.2126.10.camel@slavad-ubuntu> References: <1902997.ayblf9kj7g@coil> <20121228.115843.568913897223506746.hermes@ceres.dti.ne.jp> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dubeyko.com; s=default; h=Mime-Version:Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID; bh=m9iOLODhCRzuP/mCqE4kmq+ZN6zyrWu2HWxuZktOfH8=; b=cxd7E4sHHGhkZJG9s48Cwgjs2m2eQwc4ZvJNDHgfZhsKZDS6e4cxBjn1JCdMbadOXcYZydn71T6UJ32V5K3mbkokfpRBLIZDMTvMGcTBdsktCi5slv+HYPPYgy066j6H; In-Reply-To: <20121228.115843.568913897223506746.hermes-akuOmOme3sQYOdUovKs6ag@public.gmane.org> Sender: linux-nilfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" To: ARAI Shun-ichi Cc: linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org On Fri, 2012-12-28 at 11:58 +0900, ARAI Shun-ichi wrote: > In ; > Elmer Zhang wrote > as Subject "Re: Which version of nilfs do you use?": > > > There is more than 2TB of data and a large number of databases, tables in our MySQL service. The conventional cold backup methods can not meet our needs. So we are trying to find some other methods. > > I posted report mail about the "bad btree node" error in 2012-11-30, > I told about VirtualBox. > When I met the error first, virtual disk file (approx. 16GB) was in > NILFS FS. > > Zhang's DB is large. Perhaps there are files which has large size, I think. > And these files are updated frequently. > > Can the common point (file size, update) cause inconsistency? I think that it can be a synchronization issue. But it needs to investigate the situation more deeply. As I can see, it is using 8 CPUs in the case of the issue and it takes place frequent update. So, it can be a ground for good issue reproducibility, from my point of view. With the best regards, Vyacheslav Dubeyko. > -- > To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in > the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html