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Message #12199
Re: 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 :-)
<mailto:mauch@xxxxxxx> Mauch, Viktor (SCC)
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
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
<mailto:mauch@xxxxxxx> Mauch, Viktor (SCC)
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
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
<mailto:mauch@xxxxxxx> Mauch, Viktor (SCC)
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
KIT - University of the State of Baden-Wuerttemberg and National Research
Center of the Helmholtz Association
_______________________________________________
Mailing list: https://launchpad.net/~openstack
<https://launchpad.net/%7Eopenstack>
Post to : openstack@xxxxxxxxxxxxxxxxxxx
Unsubscribe : https://launchpad.net/~openstack
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--
Nuage & Co - Razique Mahroua
razique.mahroua@xxxxxxxxx
<mailto:razique.mahroua@xxxxxxxxx> Razique Mahroua
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> Razique Mahroua
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
<mailto:mauch@xxxxxxx> Mauch, Viktor (SCC)
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
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
<mailto:mauch@xxxxxxx> Mauch, Viktor (SCC)
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
KIT - University of the State of Baden-Wuerttemberg and National Research
Center of the Helmholtz Association
_______________________________________________
Mailing list: https://launchpad.net/~openstack
<https://launchpad.net/%7Eopenstack>
Post to : 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> Razique Mahroua
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
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