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



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

 

--Sunil

 

From: linux-cluster-bounces redhat com [mailto:linux-cluster-bounces redhat com] On Behalf Of Balaji
Sent: Wednesday, March 09, 2011 4:54 PM
To: linux-cluster redhat com
Subject: Re: [Linux-cluster] 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

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When replying, please edit your Subject line so it is more specific
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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 Dell com)
   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 pcbi upenn edu>
To: linux clustering <linux-cluster redhat com>
Subject: Re: [Linux-cluster] clvmd hangs on startup
Message-ID: <20110308171153 GB272 bsdera pcbi upenn edu>
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
    
 
  

 


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