[HDFS-5377] Heartbeats from Datandode should include one storage report per storage directory

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Heterogeneous Storage (HDFS-2832)
• Fix Version/s: Heterogeneous Storage (HDFS-2832)
• Hadoop Flags: Reviewed
• Assignee: Arpit Agarwal
• Reporter: Arpit Agarwal
• Created: 16/Oct/13 23:14
• Updated: 22/Oct/13 02:23
• Resolved: 22/Oct/13 02:23

Description

Heartbeats must include one storage report per storage directory, so that usage information for each directory is available to the DataNode for block placement.

This is a continuation of the work started by HDFS-5134 and HDFS-4988 to split block processing per storage directory.

Issue Links

• is related to: HDFS-4988 Datanode must support all the volumes as individual storages
• is related to: HDFS-5134 NameNode improvements to per-storage block processing
• is required by: HDFS-5390 Send one incremental block report per storage directory
• relates to: HDFS-5398 NameNode changes to process storage reports per storage directory