[HDFS-5200] Datanode should have compatibility mode for sending combined block reports

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: Heterogeneous Storage (HDFS-2832)
• Component/s: datanode
• Assignee: Arpit Agarwal
• Reporter: Arpit Agarwal
• Created: 13/Sep/13 19:34
• Updated: 28/Dec/13 00:32
• Resolved: 28/Dec/13 00:32

Description

We may want to consider adding a compatibility mode to the Datanode wherein it can send a combined block report (as is done today). HDFS-4988 will modify this behavior so that the Datanode will send one block report per Storage Directory. We will look at this when we get to compatibility/upgrade testing for the feature.