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[Linux-cluster] Re: Linux-cluster Digest, Vol 22, Issue 23



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Today's Topics:

   1. Cluster for  not cluster aware application (Daniel EPEE LEA)
   2. Re: FC4 repository and kernel modules (Chris Feist)
   3. About writing on the FS (javier marasco)
   4. Re: Service try to start before disk mount and failed
      (Yeheyis Workeneh)
   5. Re: GFS Crash (Velu Erwan)
   6. Re: GFS Crash (Chmouel Boudjnah)
   7. Re: About writing on the FS (y f)
   8. Re: FC4 repository and kernel modules (Birger Wathne)


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

Message: 1
Date: Tue, 21 Feb 2006 10:36:57 -0800 (PST)
From: Daniel EPEE LEA <depeecmr yahoo com>
Subject: [Linux-cluster] Cluster for  not cluster aware application
To: linux clustering <linux-cluster redhat com>
Message-ID: <20060221183657 63445 qmail web30204 mail mud yahoo com>
Content-Type: text/plain; charset=iso-8859-1

Hello,

I have a SAN + 2 nodes GFS cluster. 

I was wondering how to install an anplication that is
not  cluster aware. Anybody done that ? Please forward
me to any usefull doc.

Thanks

Much Regards,

Daniel

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Message: 2
Date: Tue, 21 Feb 2006 13:54:46 -0600
From: Chris Feist <cfeist redhat com>
Subject: Re: [Linux-cluster] FC4 repository and kernel modules
To: linux clustering <linux-cluster redhat com>,
	Birger Wathne ift uib no
Message-ID: <43FB7006 6020704 redhat com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

We do our best to keep our FC4 kernel packages in sync with the kernel 
packages, but it isn't always possible.  The current *-kernel packages are in 
fedora updates-testing and should be moved to fedora-updates by tomorrow.

Thanks,
Chris

Birger Wathne wrote:
  
I tried installing a new FC4 cluster node yesterday.

install of the kernel modules (cman, dlm and GFS) fail because they 
depend on a kernel that doesn't seem to be there anymore.

Shouldn't either someone make sure the kernel modules get recompiled for 
the latest released kernel, or make sure the kernel these modules depend 
on doesn't get removed?

I solved the problem by fetching the kernel I needed from the yum cache 
on another cluster node.

    



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

Message: 3
Date: Tue, 21 Feb 2006 15:18:47 -0300
From: "javier marasco" <javiermarasco yahoo com ar>
Subject: [Linux-cluster] About writing on the FS
To: "'linux clustering'" <linux-cluster redhat com>
Message-ID: <200602220134 k1M1YY4n011811 mx1 redhat com>
Content-Type: text/plain; charset="us-ascii"

Hi , im searching information on how to the linux kernel writes into de FS
(local HD) , i mean , if i run an application , and this application writes
somthing on the HD , how it happend? , the steps , the syscalls imlpicated
on the process.
Please , if anyone have the procces by the kernel writes on HD (locally or
on a SAN) , please explain to me or givme the link and i read.
 
Thanks a lot , and excuse me if this is not the correct place to request
this.
 

Antonio Javier Marasco
Service IT Solutions
www.serviceit.com.ar <http://www.serviceit.com.ar/> 
Tel.: 5277-3555 Fax: 4322-3555
Esmeralda 719 Piso 6
CP: C1007ABG
Capital Federal - Argentina

 
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Message: 4
Date: Tue, 21 Feb 2006 19:39:29 -0800
From: "Yeheyis Workeneh" <yeheyis gmail com>
Subject: Re: [Linux-cluster] Service try to start before disk mount
	and failed
To: "linux clustering" <linux-cluster redhat com>
Message-ID:
	<3c380f2b0602211939we8e3762jcc4d5d8bfbdf9a40 mail gmail com>
Content-Type: text/plain; charset="iso-8859-1"

Hi,


I am using fail over cluster with share storage for Oracle Db and another
application. Actually by putting reasonable time delay on the script, I am
able to delay the service to start after the mount point completed.



The service script are in the /etc/init.d in each system but the database
and another application are running on the share storage.



On 2/20/06, Lon Hohberger <lhh redhat com> wrote:
  
On Sat, 2006-02-18 at 14:00 -0500, DYM3FYEHE aol com wrote:
    
I am using RHCS V4 for Oracle database and another application running
on the two node failover cluster system. The application has different
services and installed in the shared storage. The cluster manager
starts the services before the shared drives mounted to the second
node. I use script to start and stop the service with time delay but
still the service start before the shared storage moved to the second
node and failed. Is any body knows how I can control the storage
resource and the service? I want to make the service to wait until the
shared storage available in the second node.
      
Hi,

I'm not exactly sure what you're trying to do.  Shared storage is
expected to be concurrently accessible by all nodes at the same time.
Are you trying to use one service as shared storage for another service?

Having a delay can be racy...

I'm sure there's an answer to your question. :)

-- Lon


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Message: 5
Date: Wed, 22 Feb 2006 09:57:58 +0100
From: Velu Erwan <erwan seanodes com>
Subject: Re: [Linux-cluster] GFS Crash
To: linux clustering <linux-cluster redhat com>
Cc: Marcus Nyeholt <mnyeholt squiz net>, Moe Khan austereo com au
Message-ID: <43FC2796 30509 seanodes com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Chmouel Boudjnah a écrit :

  
This sounds exactly the problem, thanks for the pointers Erwan.

 

    
You're welcome ;)
If you try a patch derivated from the 2.6.11 or even the 2.6.11 or 
later, please let us know if it had solved your troubles.

See you,
Erwan



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

Message: 6
Date: Wed, 22 Feb 2006 21:04:37 +1100
From: Chmouel Boudjnah <cboudjnah squiz net>
Subject: Re: [Linux-cluster] GFS Crash
To: linux clustering <linux-cluster redhat com>
Cc: Marcus Nyeholt <mnyeholt squiz net>, Moe Khan austereo com au
Message-ID: <87hd6rzp3e fsf paris squiz net>
Content-Type: text/plain; charset=us-ascii

Velu Erwan <erwan seanodes com> writes:

  
You're welcome ;)
If you try a patch derivated from the 2.6.11 or even the 2.6.11 or
later, please let us know if it had solved your troubles.
    

the first one was already applied on a std redhat kernel. I got the
second one thought, it seems that we have a directory with a lot of
files in it and seems take over for httpd when it looksup inside the
files.

With the patch applied i don't seems to have the problems anymore but
i made a lot of tweaking on it so i am not sure if is a cause and
effect situation.

We are simply planning to workaround the creations of theses files in
our app. 

Is there people using GFS with directories that contains a lot of
files on it ?

  


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