[HDFS-9022] Move NameNode.getAddress() and NameNode.getUri() to hadoop-hdfs-client

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: hdfs-client
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Mingliang Liu
• Reporter: Mingliang Liu
• Created: 04/Sep/15 00:52
• Updated: 30/Aug/16 01:27
• Resolved: 17/Sep/15 21:18

Description

The static helper methods in NameNodes are used in hdfs-client module. For example, it's used by the DFSClient and NameNodeProxies classes which are being moved to hadoop-hdfs-client module. Meanwhile, we should keep the NameNode class itself in the hadoop-hdfs module.

This jira tracks the effort of moving the following static helper methods out of NameNode and thus hadoop-hdfs module. A good place to put these methods is the DFSUtilClient class:

public static InetSocketAddress getAddress(String address);
public static InetSocketAddress getAddress(Configuration conf);
public static InetSocketAddress getAddress(URI filesystemURI);
public static URI getUri(InetSocketAddress namenode);

Be cautious not to bring new checkstyle warnings.

Issue Links

• blocks: HDFS-8053 Move DFSIn/OutputStream and related classes to hadoop-hdfs-client
• blocks: HDFS-9039 Separate client and server side methods of o.a.h.hdfs.NameNodeProxies
• blocks: MAPREDUCE-6483 Replace deprecated method NameNode.getUri() with DFSUtilClient.getNNUri() in TestMRCredentials