openstack team mailing list archive

[John Garbutt <John.Garbutt@xxxxxxxxxx>]

I have been having issues with multi-node too.

I have just pushed this, to fix the issues with setting RABBIT_HOST:
https://review.openstack.org/#/c/7757/

Cheers,
John

From: openstack-bounces+john.garbutt=eu.citrix.com@xxxxxxxxxxxxxxxxxxx [mailto:openstack-bounces+john.garbutt=eu.citrix.com@xxxxxxxxxxxxxxxxxxx] On Behalf Of Mauch, Viktor (SCC)
Sent: 24 May 2012 10:53
To: Razique Mahroua
Cc: openstack@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Openstack] devstack multi-node tutorial fails

This is the Link:

http://devstack.org/guides/multinode-lab.html

The corrections  would be:
it is at the  moment necessary to install the "rabbit" service also on the compute nodes (of course with the IP from the head node)

MYSQL_PASS -> MYSQL_PASSWORD
RABBIT_PASS -> RABBIT_PASSWORD
MULTI_HOST=1 -> MULTI_HOST=True (one I think only in the localrc config file of the head node)

Some more comments concerning the ssh access (because of live migration)

Cheers vic

From: Razique Mahroua [mailto:razique.mahroua@xxxxxxxxx]
Sent: Thursday, May 24, 2012 11:49 AM
To: Mauch, Viktor (SCC)
Cc: openstack@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Openstack] devstack multi-node tutorial fails

Hey Viktor, coud you send me the link ?
If it's within the official doc, we'll have a look, otherwise,  I guess you could contact the team directly :-)


[cid:image001.jpg@01CD39D7.5797A400]
Mauch, Viktor (SCC)<mailto:mauch@xxxxxxx>
24 mai 2012 11:46
Hmmmm, who would be the responsible person to make corrections and insert some more comments to the current multi node tutorial of devstack??

Cheers Viktor

From: Razique Mahroua [mailto:razique.mahroua@xxxxxxxxx]
Sent: Thursday, May 24, 2012 10:18 AM
To: Mauch, Viktor (SCC)
Cc: openstack@xxxxxxxxxxxxxxxxxxx<mailto:openstack@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Openstack] devstack multi-node tutorial fails

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

Raz

[cid:image002.jpg@01CD39D7.5797A400]
Mauch, Viktor (SCC)<mailto:mauch@xxxxxxx>
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:razique.mahroua@xxxxxxxxx]
Sent: Wednesday, May 23, 2012 4:28 PM
To: Mauch, Viktor (SCC)
Cc: openstack@xxxxxxxxxxxxxxxxxxx<mailto:openstack@xxxxxxxxxxxxxxxxxxx>
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




[cid:image003.jpg@01CD39D7.5797A400]
Mauch, Viktor (SCC)<mailto:mauch@xxxxxxx>
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: mauch@xxxxxxx<mailto:mauch@xxxxxxx>

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

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--
Nuage & Co - Razique Mahroua
razique.mahroua@xxxxxxxxx<mailto:razique.mahroua@xxxxxxxxx>
[cid:image004.jpg@01CD39D7.5797A400]

[cid:image005.jpg@01CD39D7.5797A400]
Razique Mahroua<mailto:razique.mahroua@xxxxxxxxx>
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
razique.mahroua@xxxxxxxxx<mailto:razique.mahroua@xxxxxxxxx>
[cid:image006.jpg@01CD39D7.5797A400]

[cid:image007.jpg@01CD39D7.5797A400]
Razique Mahroua<mailto:razique.mahroua@xxxxxxxxx>
24 mai 2012 10:18
Hey,
no you don't need to, the only case where the SSH exchange is mandatory is for the [live|classi] migration

Raz
[cid:image001.jpg@01CD39D7.5797A400]
Mauch, Viktor (SCC)<mailto:mauch@xxxxxxx>
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:razique.mahroua@xxxxxxxxx]
Sent: Wednesday, May 23, 2012 4:28 PM
To: Mauch, Viktor (SCC)
Cc: openstack@xxxxxxxxxxxxxxxxxxx<mailto:openstack@xxxxxxxxxxxxxxxxxxx>
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



[cid:image002.jpg@01CD39D7.5797A400]
Mauch, Viktor (SCC)<mailto:mauch@xxxxxxx>
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: mauch@xxxxxxx<mailto:mauch@xxxxxxx>

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

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Mailing list: https://launchpad.net/~openstack<https://launchpad.net/%7Eopenstack>
Post to : openstack@xxxxxxxxxxxxxxxxxxx<mailto:openstack@xxxxxxxxxxxxxxxxxxx>
Unsubscribe : https://launchpad.net/~openstack<https://launchpad.net/%7Eopenstack>
More help : https://help.launchpad.net/ListHelp

--
Nuage & Co - Razique Mahroua
razique.mahroua@xxxxxxxxx<mailto:razique.mahroua@xxxxxxxxx>
[cid:image006.jpg@01CD39D7.5797A400]

[cid:image007.jpg@01CD39D7.5797A400]
Razique Mahroua<mailto:razique.mahroua@xxxxxxxxx>
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
razique.mahroua@xxxxxxxxx<mailto:razique.mahroua@xxxxxxxxx>
[cid:image008.jpg@01CD39D7.5797A400]