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Add again a node that failed and had to be reinstalled? [closed]

asked 2014-02-15 12:43:49 -0500

edmv gravatar image

Hi there, I had a 6 server setup with rdo, 1 controller and 5 nodes, the controller being also the network controller.

One compute node failed and had to reinstall the operating system again.

My setup uses gluster for cinder and for nova (for live migration) but that's another issue, what I would like to know is exactly how to "re-add" this failed node.

I'm working on the assumption that if I re-run packstack from the controller, the puppet modules will just notice the missing packages/services from the failed node and reinstall things "on that node only" effectively re-adding the node as it was before, is my assumption correct or is there another method? Piece of warning, the openstack we have, althouth in testing, is being currently used for several things so I don't want the complete stack going down just for an incorrect procedure adding a node.

Thanks in advance!

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Closed for the following reason the question is answered, right answer was accepted by dheeru
close date 2014-02-19 01:00:36.806326

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Not sure, perhaps setting EXCLUDE_SERVERS with your existing nodes and re-run packstack with the same answer file might help.

cloudssky gravatar imagecloudssky ( 2014-02-15 14:25:59 -0500 )edit

Yeah, I was thinking in using it as a failsafe, it won't be until torromow Monday that I'm gonna be able to test. If there is another method though do let me know.

edmv gravatar imageedmv ( 2014-02-16 13:13:31 -0500 )edit

I'd say, let's wait for RDO experts to help us with this issue.

cloudssky gravatar imagecloudssky ( 2014-02-16 13:34:38 -0500 )edit

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answered 2014-02-18 11:51:42 -0500

edmv gravatar image

For anoyone wondering the same, I was able to test with success.

I put my controller and 4 of my nodes in the EXCLUDE_SERVERS, and only put the IP of the node that had to be reinstalled in CONFIG_NOVA_COMPUTE_HOSTS, ran packstack --answer-file=myfile.cfg and the host was reconfigured againg without issues.

Thank you all

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Asked: 2014-02-15 12:43:49 -0500

Seen: 62 times

Last updated: Feb 18 '14