From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Cundiff Subject: Re: Intermittent no space errors Date: Tue, 27 Jul 2010 16:30:03 -0400 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 To: linux-btrfs@vger.kernel.org Return-path: In-Reply-To: List-ID: Hello, I installed the git repo kernel and added some debug to the ENOSPC returns. Unfortunately its still failing. If it helps any its bombing out in btrfs_check_data_free_space() in extent-tree.c. Returning on the ENOSPC at line 2959. Unfortunately that is the extent of my ability to debug a filesystem. := P Thanks, On Tue, Jul 27, 2010 at 9:19 AM, Yan, Zheng wrote: > On Tue, Jul 27, 2010 at 5:09 AM, Dave Cundiff = wrote: >> Hello, >> >> On 2.6.35-rc5 I'm seeing some weird behavior under heavy IO loads. I >> have a backup process that fires up several rsync processes. These >> mirror several dozen servers to individual sub-volumes. Everyday I >> snapshot each sub-volume and rsync over it. >> >> The problem I'm seeing is my rsync processes are failing randomly wi= th >> "No space left on device". This is a 6 Terabyte volume with plenty o= f >> free space. >> >> Mount options: >> /dev/sdb on /backups type btrfs (rw,max_inline=3D0,compress) >> >> [root@rsync1 ~]# btrfs filesystem df /backups/ >> Data: total=3D1.88TB, used=3D1.88TB >> Metadata: total=3D43.38GB, used=3D32.06GB >> System: total=3D12.00MB, used=3D260.00KB >> >> [root@rsync1 ~]# df /dev/sdb >> Filesystem =A0 =A0 =A0 =A0 =A0 1K-blocks =A0 =A0 =A0Used Available U= se% Mounted on >> /dev/sdb =A0 =A0 =A0 =A0 =A0 =A0 5781249024 2087273084 3693975940 =A0= 37% /backups >> >> They don't all fail at once. Normally I have 4-5 running at a time a= nd >> 1 or 2 will drop out with a no space error. The rest continue on. I'= ve >> noticed it will generally occur on ones that are in the middle of >> transferring a very large file. If I lighten the load to one rsync a= t >> a time it appears to happen less frequently. >> >> Any known issues I should be aware of? >> > > Thank you for reporting this. I will dig in. > > Yan, Zheng > --=20 Dave Cundiff System Administrator A2Hosting, Inc http://www.a2hosting.com -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html