[Ocfs2-users] o2net_check_handshake ... advertised net

[Tomas Lavicky]

Hi Sergio,
thanks for an answer. Can I ask you for more explanation, please?
Does it mean that if I want to mount ocfs2/drbd partitions concurrently I must 
use OCFS2 drivers compiled with the same version kernel on all nodes?
And on the other hand - if I'd umount this partitions on non-upgraded node 
would I be able to mount them on upgraded one? Or need I remove drivers as 
well? I can't stop virtual guests and play with running node to try it but I 
can plan and announce short break for some night if it would be the way.
Thanks in advance
Tomas Lavicky

> Date: Mon, 1 Jun 2009 08:36:41 -0300
> From: S?rgio Surkamp <sergio at gruposinternet.com.br>
> Subject: Re: [Ocfs2-users] o2net_check_handshake ... advertised net
> 	protocol version 11 but 8 is required
> To: ocfs2-users at oss.oracle.com
>
> Hi Mr. Tomas,
>
> You need the same version of OCFS2 drivers in both nodes to mount the
> volume. The OCFS2 versions are on-disk compatible but the
> network protocol can change. It seems your problem.
>
> Regards,
> S?rgio
>
> Em Mon, 1 Jun 2009 11:06:33 +0200
>
> Tomas Lavicky <tomas.lavicky at racom.eu> escreveu:
> > Hi,
> > we have two node HP Proliant DL140 / Ubuntu 8.04 LTS / Heartbeat
> > 2.1.3-2 cluster with bunch of KVM virtual guests. Images for virtual
> > servers are stored in two DRBD 8.0.11 / OCFS2 1.3.9 dual-primary mode
> > resources. I've run this cluster for one year yet and I need to
> > upgrade it now. I can't stop cluster and upgrade both nodes at once.
> > So I moved all virtual servers to one node, stopped Heartbeat, OCFS2
> > and DRBD and upgrade another node to Ubuntu 8.10. All seems to be
> > well after reboot except I'm not able mount OCFS2/DRBD partitions on
> > upgraded node:
> >
> > ~# mount -t ocfs2 /dev/drbd1 /drbd1/
> > mount.ocfs2: Transport endpoint is not connected while
> > mounting /dev/drbd1 on /drbd1/. Check 'dmesg' for more information on
> > this error.
> >
> > Tail of dmesg on upgraded node:
> >
> > [329491.075605] (4849,0):o2net_check_handshake:1227 node
> > rrhb-gandalfb (num 0) at 10.123.45.18:7777 advertised net protocol
> > version 8 but 11 is required, disconnecting
> > [329495.106007] (7751,0):dlm_request_join:1033 ERROR: status = -107
> > [329495.106055] (7751,0):dlm_try_to_join_domain:1207 ERROR: status =
> > -107 [329495.106086] (7751,0):dlm_join_domain:1485 ERROR: status =
> > -107 [329495.106164] (7751,0):dlm_register_domain:1732 ERROR: status
> > = -107 [329495.106198] (7751,0):o2cb_cluster_connect:302 ERROR:
> > status = -107 [329495.106229] (7751,0):ocfs2_dlm_init:2756 ERROR:
> > status = -107 [329495.106268] (7751,0):ocfs2_mount_volume:1208 ERROR:
> > status = -107 [329495.106323] ocfs2: Unmounting device (147,1) on
> > (node 0)
> >
> > And on non-upgraded node:
> >
> > [1626792.088584] (4888,0):o2net_check_handshake:1144 node
> > rrhb-gandalfs (num 1) at 10.123.45.19:7777 advertised net protocol
> > version 11 but 8 is required, disconnecting
> >

> > Along to this thread
> > http://oss.oracle.com/pipermail/ocfs2-users/2008-April/002769.html it
> > could be kernel incompatibility problem. Is it chance to solve it
> > anyhow with different kernels? I need to keep one node running
> > continually so I'm afraid to upgrade it while the other one won't be
> > OK. Thanks for your advice.
> >
> > Tomas