[Ocfs2-users] O2CB heartbeat: Not active

[Joel Becker]

On Wed, Apr 29, 2009 at 04:39:23PM -0400, McKinley, Reid wrote:
> In the /var/log/messages, I see this at the time the mount fails:
> 
> Apr 29 12:01:13 nyclx2 kernel: (12430,0):o2net_check_handshake:1163 node
> nyclx1 (num 0) at 192.168.0.218:7777 advertised net protocol version 11
> but 103 is required, disconnecting
> Apr 29 12:01:17 nyclx2 kernel: (16953,0):ocfs2_initialize_super:1454
> ERROR: couldn't mount because of unsupported optional features (10).
> Apr 29 12:01:17 nyclx2 kernel: (16953,0):ocfs2_fill_super:578 ERROR:
> status = -22
> Apr 29 12:01:17 nyclx2 kernel: ocfs2: Unmounting device (8,0) on (node
> 255)

	It looks like one node is running 1.2 and the other 1.4.  You
cannot mount the same filesystem with different versions of the driver
at the same time.  Both versions may understand the disk format, but
they cannot coordinate with each other.
	Specifically, you're seeing the network protocol version
mismatch.  Upgrade the other node to 1.4.1 and you should be able to
mount.

Joel

-- 

A good programming language should have features that make the
kind of people who use the phrase "software engineering" shake
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Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127