Created 02-11-2016 03:37 AM
The customer wants to setup a backup to a backup cluster. They want to know how many NameNodes are required on the Backup Cluster. They want to know if there is some rule of thumb. The constraints for the backup cluster is below
Created 02-11-2016 06:12 AM
Hi @mhendricks you should use 2 Namenodes to increase the availability of the backup cluster. This is especially important if you only have limited window for your backup (like 1-5am).
This might also be helpful:
https://community.hortonworks.com/questions/4135/what-to-backup-and-how-only-metadata-not-data.html
Created 02-11-2016 03:40 AM
2 namenode
Active and passive setup
I would treat backup cluster setup "not config" almost same as production
Configs = CPU & Memory
Created 02-11-2016 03:47 AM
The overall flows looks good.
Created 02-11-2016 06:12 AM
Hi @mhendricks you should use 2 Namenodes to increase the availability of the backup cluster. This is especially important if you only have limited window for your backup (like 1-5am).
This might also be helpful:
https://community.hortonworks.com/questions/4135/what-to-backup-and-how-only-metadata-not-data.html
Created 02-11-2016 08:28 AM
+1 cost savings are great but not with backups