Hi Hannes, On Tue, 13 May 2014, Hannes Landeholm wrote: > On Tue, May 13, 2014 at 2:35 PM, Alex Elder <elder@xxxxxxxx> wrote: > > On 05/12/2014 12:28 PM, Hannes Landeholm wrote: > >> We where experimenting to use ZFS as a backend for > >> CEPH just to see what the performance and storage saving > >> characteristics was like but we're gonna completely switch to ext4 now > >> and see if the problem goes away. > > > > This is very good to know. Please report back what you find. > > We completely cleansed the server in question from any trace of ZFS > and ran the same test again with ext4 instead for the ceph backend > with the same conditions. Everything worked fine. The machine has also > stopped randomly locking up. We will not touch ZFS again. Maybe in a > distant future where it actually integrates well with Linux. Note that there was a patch a week or so ago fixing a problem in RBD when running ZFS on top of RBD (IIRC it had to do with length 0 bios or something?). Was this ZFS on RBD or ZFS underneat the ceph-osd daemons? sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
