How can I reinstall a node?

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jj

• May 24, 2013 07:42

I want to know if its possible and how can I completely reinstall a single node in case hardware it's completely broken, in a working clustercontrol-mysql-galera-codership cluster.

I have been searching documentation and looking install scripts and seems that you can deploy the complete cluster easily, but better explained I can't find if it possible or not reinstalling a single node, once you completely lose it.

Thanks in advance.

 

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  Johan

  • May 24, 2013 08:09

  In the Enterprise version you can simply remove the broken node and add a new node .

  For the community, you need to:

  • spin up the new vm/server.
  • Install mysql/codership binaries.
  • Create the mysql user and datadir
  • run mysql_install_db etc..
  • Take the same my.cnf as you have already on one of the other nodes.
  • Setup password less ssh to the new server.
  • Then you can run, from the command line (part of s9s-admin tools on github): ./s9s_aws --change-ip -h <old server addr> -n <new server addr> -k < new server ip> if <new server addr> == < new server ip>  then set the same for -n and -k . (s9s_aws is a tool really designed for AWS, but can be used for on non-AWS setups too).

  The admin tools you find here:

  https://github.com/severalnines/s9s-admin

  git clone git://github.com/severalnines/s9s-admin.git

  I hope this helps.

  BR

  johan

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  jj

  • May 24, 2013 08:24

  Yes, that helps, thank you very much.

   

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