Hi Stefan,
Thanks for the info! I've been testing on 3.4 for the last couple of
days but haven't run into that problem here. It looks like your journal
has writes going to it quickly and then things stall as it tries to
write out to your data disk. I wonder if any of the data actually makes
it to the disk... Can you run iostat or collectl or something and see
what kind of write throughput you get to the OSD data disks?
Thanks,
Mark
On 05/24/2012 01:15 PM, Stefan Priebe wrote:
Am 24.05.2012 16:55, schrieb Mark Nelson:
Hi Stefan,
Were these both tested on fresh filesystems? If you still have any
3.0.30 available, could you try a couple of longer running tests (say 5
minutes) and see how they compare?
Yes with 3.4 it totally stalls. Tested with XFS and btrfs. Client
always had the same Kernel. So i just changed the kernel on osd side.
Kernel 3.4
http://pastebin.com/raw.php?i=CApKbSNj
Kernel 3.0.30
http://pastebin.com/raw.php?i=kZ7rnwcM
Stefan
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