[HDFS-2320] Make merged protocol changes from 0.20-append to 0.20-security compatible with previous releases.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.20.205.0
• Fix Version/s: 0.20.205.0
• Component/s: datanode, hdfs-client, namenode
• Hadoop Flags: Reviewed
• Assignee: Suresh Srinivas
• Reporter: Suresh Srinivas
• Created: 07/Sep/11 16:23
• Updated: 19/Oct/11 00:26
• Resolved: 09/Sep/11 00:26

Description

0.20-append changes have been merged to 0.20-security. The merge has changes to version numbers in several protocols. This jira makes the protocol changes compatible with older release, allowing clients running older version to talk to server running 205 version and clients running 205 version talk to older servers running 203, 204.