On Tue, Jul 27, 2010 at 5:09 AM, Dave Cundiff <syshack...@gmail.com> 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 with > "No space left on device". This is a 6 Terabyte volume with plenty of > free space. > > Mount options: > /dev/sdb on /backups type btrfs (rw,max_inline=0,compress) > > [r...@rsync1 ~]# btrfs filesystem df /backups/ > Data: total=1.88TB, used=1.88TB > Metadata: total=43.38GB, used=32.06GB > System: total=12.00MB, used=260.00KB > > [r...@rsync1 ~]# df /dev/sdb > Filesystem 1K-blocks Used Available Use% Mounted on > /dev/sdb 5781249024 2087273084 3693975940 37% /backups > > They don't all fail at once. Normally I have 4-5 running at a time and > 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 at > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
