[HDFS-9111] Move hdfs-client protobuf convert methods from PBHelper to PBHelperClient

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Mingliang Liu
• Reporter: Mingliang Liu
• Created: 18/Sep/15 21:27
• Updated: 30/Aug/16 01:27
• Resolved: 22/Sep/15 02:43

Description

TL;DR This jira tracks the effort of moving PB helper methods, which convert client side data structure to and from protobuf, to the hadoop-hdfs-client module.

Currently the PBHelper class contains helper methods converting both client and server side data structures from/to protobuf. As we move client (and common) classes to hadoop-hdfs-client module (see HDFS-8053 and HDFS-9039), we also need to move client module related PB converters to client module.

A good place may be a new class named PBHelperClient. After this, the existing PBHelper class stays in hadoop-hdfs module with converters for converting server side data structures.

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: HDFS-8979 Clean up checkstyle warnings in hadoop-hdfs-client module
• breaks: HBASE-16110 AsyncFS WAL doesn't work with Hadoop 2.8+
• relates to: HDFS-8733 Keep server related definition in hdfs.proto on server side