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satishchennu
PostPosted: Wed Dec 15, 2010 1:21 pm    Post subject: I am having issue starting the queue manager on shared syste Reply with quote

Newbie

Joined: 15 Dec 2010
Posts: 2

I am planning to achieve the concept of making the MQ queues shared between 2 systems (concept of fault tolerance )that is if one system is down for some reason the other system takes its job and it should run fine as the queues are shared .Here we mounted qmgrs on SAN BOX where queues will be created. I am having issue starting the queue manager as it gives below error

AMQ6239: Permission denied attempting to access filesystem location
'/nfsv4/MQ7HA/qmgrs/saturn!queue!manager/errors/AMQERR02.LOG'.
AMQ6239: Permission denied attempting to access filesystem location
'/nfsv4/MQ7HA/log/saturn!queue!manager//amqprobe.amq'.

I believe i ts setting the Gid itself .Did someone have similar issue and if so how this was achieved.
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Vitor
PostPosted: Wed Dec 15, 2010 1:35 pm    Post subject: Re: I am having issue starting the queue manager on shared s Reply with quote

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Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

satishchennu wrote:
I am having issue starting the queue manager as it gives below error


Starting which queue manager? The principle or the fail over?

Have you reviewed the documentation on configuring queue managers in this way & used the support pac? Or just defined the file system on the SAN & given it a try?

Are you trying to run both queue managers simultaniously?

I'm guessing from the path you're using WMQv7. Are you doing full HA or using MI queue managers? On what platform?

Better information, better advice.
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HubertKleinmanns
PostPosted: Wed Dec 15, 2010 10:16 pm    Post subject: Re: I am having issue starting the queue manager on shared s Reply with quote

Shaman

Joined: 24 Feb 2004
Posts: 732
Location: Germany

You should just read the error message:

satishchennu wrote:
...
AMQ6239: Permission denied attempting to access filesystem location
'/nfsv4/MQ7HA/qmgrs/saturn!queue!manager/errors/AMQERR02.LOG'.
AMQ6239: Permission denied attempting to access filesystem location
'/nfsv4/MQ7HA/log/saturn!queue!manager//amqprobe.amq'.
...


It seems to be a mounted filesystem.

- Does the user "mqm" have write permissions to this file system and files?

- Are the UID and GID of the "mqm" user the same on all systems?

This is not a WMQ issue. Check the permissions and / or UID and GID with the Unix administrators.
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bruce2359
PostPosted: Thu Dec 16, 2010 5:35 am    Post subject: Reply with quote

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Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.

Search for Multi-instance queue manager
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satishchennu
PostPosted: Thu Dec 16, 2010 9:20 am    Post subject: Reply with quote

Newbie

Joined: 15 Dec 2010
Posts: 2

Hi guys thanks for the response .the configuration files are mounted on the SAN system .In the concept of Fault tolerant
Both queue mangers will be running but one will be active and the other standby.Th problem is as when we are tying to start the queue manager it is giving the permission issue as below


AMQ6239: Permission denied attempting to access filesystem location
>>
>> '/nfsv4/MQ7HA/qmgrs/saturn!queue!manager/errors/AMQERR02.LOG'.
>>
>> AMQ6239: Permission denied attempting to access filesystem location
>>
>> '/nfsv4/MQ7HA/log/saturn!queue!manager//amqprobe.amq'


We are using the solarsis box.how this can be handled .Did I pharse it correctly now
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Vitor
PostPosted: Thu Dec 16, 2010 9:26 am    Post subject: Reply with quote

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

I repeat my question above:

Quote:
Have you reviewed the documentation on configuring queue managers in this way & used the support pac? Or just defined the file system on the SAN & given it a try?

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Vitor
PostPosted: Thu Dec 16, 2010 9:27 am    Post subject: Reply with quote

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

satishchennu wrote:
the configuration files are mounted on the SAN system


Not just those I hope, and increases my suspicion you've just dropped some likely looking files on the SAN rather than properly configured queue manager & file system.
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bruce2359
PostPosted: Thu Dec 16, 2010 9:38 am    Post subject: Reply with quote

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Location: US: west coast, almost. Otherwise, enroute.

The Multi-Instance documentation identifies prerequisite software, like NFS v4. Have you read the MI doc?
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exerk
PostPosted: Thu Dec 16, 2010 11:38 pm    Post subject: Reply with quote

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Joined: 02 Nov 2006
Posts: 6339

bruce2359 wrote:
The Multi-Instance documentation identifies prerequisite software, like NFS v4. Have you read the MI doc?


It's implied in the file path that NFS4 is being used:

satishchennu wrote:
.../nfsv4/MQ7HA/qmgrs/...


But it is only implied.
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PeterPotkay
PostPosted: Fri Dec 17, 2010 3:47 am    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7722

satishchennu wrote:
We are using the solarsis box.


https://www-304.ibm.com/support/docview.wss?q1=multi-instance&rs=0&uid=swg21433474&cs=utf-8&lang=en&loc=en_US&cc=us

Quote:
Multi-instance queue managers on Solaris using NFS v4 are NOT supported due to a suspected problem in the NFS v4 client. The effect is data corruption of the queue manager logs following a network outage. The issue is being investigated by Oracle. The case reference is CR 6942081.

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