Do you recommend that Namenode is Datanode??

[#1]

Hi:

-is a good way to have in the same server 1 namenode and datanode in production??

Thanks.

[#2 · Accepted solution]

A single server production setup is not recommended at all the minimum configuration for a production environment is 3 or 5 odd numbers because of the default 3 replication factor.

Dev and TEST doesn't need to as big as prod. DR is required too and we can use DR for reporting

Please check the minimum requirements for production setup

[#3]

You can put a Datanode on the Namenode on a single node sandbox/test cluster, however you should absolutely not do that in a production environment.

Its good practice to separate your master (Namenode, Resourcemanager,..) and worker nodes (Datanode, Nodemanager,..). The actual service allocation and number of nodes depend on your use case and cluster size.