[jira] [Created] (HDFS-11548) OZone: SCM: Add node pool management API

["Xiaoyu Yao (JIRA)" <ji...@apache.org>]

Xiaoyu Yao created HDFS-11548:
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             Summary: OZone: SCM: Add node pool management API
                 Key: HDFS-11548
                 URL: https://issues.apache.org/jira/browse/HDFS-11548
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Xiaoyu Yao
            Assignee: Xiaoyu Yao


The idea is to group registered nodes into pools of fixed size (say 24 nodes per pool) so that the container allocation and report can all be handled independently on a pool basis by SCM.  

The initial patch will implement the following Node Pool API that 
1) add node to a node pool 
2) remove a node from a pool 
3) get the pool name that a node belongs to 
4) get all the pool names 
5) get all nodes of a pool

The integration with SCM container allocation can be all nodes in a single default pool upon registration. We will provide a CLI to manage multiple pools and support for pool definition file later. 



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