HDFS-Federation: Add support for multiple namenodes in MiniDFSCluster
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Key: HDFS-1652
URL: https://issues.apache.org/jira/browse/HDFS-1652
Project: Hadoop HDFS
Issue Type: Sub-task
Components: test
Affects Versions: Federation Branch
Reporter: Suresh Srinivas
Assignee: Suresh Srinivas
Fix For: Federation Branch
For testing federation MiniDFSCluster needs to support multiple namenodes. The
following functionality is needed:
1. Starting a cluster with 1 or more namenodes
2. Adding a namenode to the cluster that is already started.
3. Shutting down a namenode in the cluster.
4. Shutting down all the namenodes in the cluster.
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