ambari Version 2.6.2.2--完整的集群配置备份

Question

Ambari 2.6 does not have blueprint options. Can anyone advise me or give me a blog how to take back up for the complete cluster configuration only. We do not need back up for the data. Only configuration. Also, we are using embedded dabase for the Ambari. Any step by step advise?

Thank you for help.

Answer 1

It's been a while but you can take a backup of the postgres instance that's used/embedded with Ambari. This is pretty close to a cluster backup, it will keep the settings you use today.

If you had a backup you could "recover" the cluster like so: Recreate your cluster services on a blank cluster. Keep all the domain names the same.

Stop All services.
Stop ambari
Restore backup
Start ambari.
Start All services.

This would effectively restore your services with the setting you have today.

If you forgot your services that you installed.

1. You could install ambari,
2. stop it.
3. take a backup of postgress [new backup].
4. Restore the "config backup you made of the old cluster" postgress backup.
5. Start ambari and read all the settings/services that need to be installed....
6. Stop Ambari
7. restore [new backup] postgress.
8. complete the installation of the cluster.
9. Stop, restore, start.

This all kinda hinges on you having the packages to install HDP 2.6.2. (Hopefully you have an offline repo.) The regular packages for 2.6.2 are likely behind a paywall now... but you could theoretically rebuild them yourself from source code.