[HDFS-9706] Log more details in debug logs in BlockReceiver's constructor

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Labels: supportability
• Hadoop Flags: Reviewed
• Assignee: Xiao Chen
• Reporter: Xiao Chen
• Created: 26/Jan/16 18:36
• Updated: 30/Aug/16 01:20
• Resolved: 29/Jan/16 07:18

Description

Currently BlockReceiver's constructor has some debug logs to help identifying problems. During my triage of HDFS-9701, I needed to add the isTransfer into the logs to see which block the code goes later.

I propose to add more details in the debug logs, to save future effort. Will also see whether more details need to be logged.