Re: [Openstack] devstack multi-node tutorial fails

Thu, 24 May 2012 01:26:57 -0700

Hey,
no you don't need to, the only case where the SSH exchange is mandatory is for the [live|classi] migration

Raz
23 mai 2012 16:31

Another thing:

 

Is it really necessary to implement password-less ssh login via .ssh/authorized_keys?

 

For me it works without it.

 

Viktor

 

From: Razique Mahroua [mailto:[email protected]]
Sent: Wednesday, May 23, 2012 4:28 PM
To: Mauch, Viktor (SCC)
Cc: [email protected]
Subject: Re: [Openstack] devstack multi-node tutorial fails

 

Thanks for the feedback
as for the multi_node mode, no it supposes you spawn a nova-network component on every compute node
Razique



23 mai 2012 16:00

Hi,

 

I just want so say, that some days ago the stack.sh script hast been changed concerning the rabbit server installation.

The current description for multi node tutorial (http://devstack.org/guides/multinode-lab.html) will fail.

 

At the moment it is necessary to install the rabbit service on the compute hosts TOO (but of course with the IP from the master node)!!

e.g.:

 

ENABLED_SERVICES=n-cpu,n-net,g-api,rabbit

RABBIT_HOST=$MASTERNODE

RABBIT_PASSWORD=pass

 

 

Otherwise the compute node tries to find a rabbit-mq server on localhost!

 

There are also some other wrong details in the multi-node toturial.

 

It must be:

 

RABBIT_PASSWORD and MYSQL_PASSWORD instead of MYSQL_PASS und RABBIT_PASS

 

Und the parameter MULTI_HOST=1 has to be change to MULTI_HOST=True (and should only be available on the master node, as I understand it right).

 

 

Cheers Viktor

 

--

Dipl.-Phys. Viktor Mauch

 

Steinbuch Centre for Computing (SCC)

http://www.scc.kit.edu/

 

Karlsruhe Institute of Technology (KIT)

Hermann-von-Helmholtz-Platz 1

D-76344 Eggenstein-Leopoldshafen

 

Phone: +49(0)721 608-28721

eMail: [email protected]

 

KIT – University of the State of Baden-Wuerttemberg and National Research Center of the Helmholtz Association

 

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--
Nuage & Co - Razique Mahroua
[email protected]

 

23 mai 2012 16:27
Thanks for the feedback
as for the multi_node mode, no it supposes you spawn a nova-network component on every compute node
Razique




--
Nuage & Co - Razique Mahroua
[email protected]

  

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