Re: Linux-cluster Digest, Vol 83, Issue 13

<Sunil_Gupta2@xxxxxxxx> · Wed, 9 Mar 2011 17:44:17 +0530

One node is offline cluster is not formed….check if multicast traffic is working…

--Sunil

From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Balaji
Sent: Wednesday, March 09, 2011 4:54 PM
To: linux-cluster@xxxxxxxxxx
Subject: Re:  Linux-cluster Digest, Vol 83, Issue 13

Dear All,

    Please find attached log file for more analysis 
    Please help me to solve this problem ASAP.

    Clustat Command Output is below 
    [root@corviewprimary ~]# clustat
    Cluster Status for EMSCluster @ Wed Mar  9 17:00:03 2011
    Member Status: Quorate

     Member Name                                                   ID   Status
     ----------- -------                                                   ---- ------
     corviewprimary                                                    1 Online, Local
     corviewsecondary                                                  2 Offline

    [root@corviewprimary ~]#

Regards,
-S.Balaji

linux-cluster-request@xxxxxxxxxx wrote: 
Send Linux-cluster mailaddr:115.249.107.179ing list submissions to
        linux-cluster@xxxxxxxxxx

To subscribe or unsubscribe via the World Wide Web, visit
        https://www.redhat.com/mailman/listinfo/linux-cluster
or, via email, send a message with subject or body 'help' to
        linux-cluster-request@xxxxxxxxxx

You can reach the person managing the list at
        linux-cluster-owner@xxxxxxxxxx

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Linux-cluster digest..."

Today's Topics:

   1. Re: clvmd hangs on startup (Valeriu Mutu)
   2. Re: clvmd hangs on startup (Jeff Sturm)
   3. dlm-pcmk-3.0.17-1.fc14.x86_64 and
      gfs-pcmk-3.0.17-1.fc14.x86_64 woes (Gregory Bartholomew)
   4. Re: dlm-pcmk-3.0.17-1.fc14.x86_64 and
      gfs-pcmk-3.0.17-1.fc14.x86_64 woes (Fabio M. Di Nitto)
   5. Re: unable to live migrate a vm in rh el 6: Migration
      unexpectedly failed (Lon Hohberger)
   6. Re: rgmanager not running (Sunil_Gupta2@xxxxxxxx)
   7. Re: unable to live migrate a vm in rh el 6: Migration
      unexpectedly failed (Gianluca Cecchi)
   8. Re: dlm-pcmk-3.0.17-1.fc14.x86_64 and
      gfs-pcmk-3.0.17-1.fc14.x86_64 woes (Andrew Beekhof)
   9. Re: unable to live migrate a vm in rh el 6: Migration
      unexpectedly failed (Gianluca Cecchi)
  10. Re: unable to live migrate a vm in rh el 6: Migration
      unexpectedly failed (Gianluca Cecchi)

----------------------------------------------------------------------

Message: 1
Date: Tue, 8 Mar 2011 12:11:53 -0500
From: Valeriu Mutu <vmutu@xxxxxxxxxxxxxx>
To: linux clustering <linux-cluster@xxxxxxxxxx>
Subject: Re:  clvmd hangs on startup
Message-ID: <20110308171153.GB272@xxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset=us-ascii

Hi,

I think the problem is solved. I was using a 9000bytes MTU on the Xen virtual machines' iSCSI interface. Switching back to 1500bytes MTU caused the clvmd to start working.

On Thu, Mar 03, 2011 at 11:50:57AM -0500, Valeriu Mutu wrote:

On Wed, Mar 02, 2011 at 05:36:45PM -0500, Jeff Sturm wrote:

Double-check that the 2nd node can read and write the shared iSCSI
storage.

Reading/writing from/to the iSCSI storage device works as seen below.

On the 1st node:
[root@vm1 cluster]# dd count=10000 bs=1024 if=/dev/urandom of=/dev/mapper/pcbi-homes 
10000+0 records in
10000+0 records out
10240000 bytes (10 MB) copied, 3.39855 seconds, 3.0 MB/s

[root@vm1 cluster]# dd count=10000 bs=1024 if=/dev/mapper/pcbi-homes of=/dev/null 
10000+0 records in
10000+0 records out
10240000 bytes (10 MB) copied, 0.331069 seconds, 30.9 MB/s

On the 2nd node:
[root@vm2 ~]# dd count=10000 bs=1024 if=/dev/urandom of=/dev/mapper/pcbi-homes
10000+0 records in
10000+0 records out
10240000 bytes (10 MB) copied, 3.2465 seconds, 3.2 MB/s

[root@vm2 ~]# dd count=10000 bs=1024 if=/dev/mapper/pcbi-homes of=/dev/null
10000+0 records in
10000+0 records out
10240000 bytes (10 MB) copied, 0.223337 seconds, 45.8 MB/s

--
Linux-cluster mailing list
Linux-cluster@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/linux-cluster