[Linux-HA] OCFS2 on HB 2.1.3 v2

[Christian Rishøj]

On Feb 18, 2008 9:40 AM, Michael Brennen <michael at fishnet.us> wrote:
> On Mon, 18 Feb 2008, Christian Rishøj wrote:
>
> > On 18 Feb 2008, at 05:45, Michael Brennen wrote:
> >
> >> On Mon, 18 Feb 2008, Christian Rishøj wrote:
> >>
> >> > I had similar issues with OCFS2 on DRBD: Undeletable
> >> > files/folders, inability to reboot. Furthermore, I saw some
> >> > quite severe performance issues with OCFS2 in comparison with
> >> > XFS or EXT3.
> >>
> >> Hm... good feedback.  Were you also running OCFS2 in dual master
> >> mode, or master/slave?
> >
> > Dual master. However, as I recall it, the performance issues were
> > present even when the other node was down.
>
> What version?

A saved dmesg from the time shows:

[   66.271468] OCFS2 Node Manager 1.3.3
[   66.281869] OCFS2 DLM 1.3.3
[   66.288291] OCFS2 DLMFS 1.3.3
[   76.221164] OCFS2 1.3.3

However, this numbering doesn't seem to be the one used for the project per se.


> I found a site (I don't have the URL handy at the
> moment) dated over a year ago that did some stress testing with gfs,
> ocfs2 and I think one or two others, and they noted that gfs was the
> only one that didn't give any trouble in the testing.  I know in
> recent releases that dlm has been incorporated into ocfs2, and I
> think that performance and stability are claimed to have improved as
> well.  Thanks much for the followup.

I'm sure OCFS2 has sensible applications. The trouble I was seeing may
stem from the fact that it ran on top of DRBD - which the OCFS2 folks
seem to advice against.

Best,
Christian