[HDFS-9299] Give ReplicationMonitor a readable thread name

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 2.7.1
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: namenode
• Target Version/s: 2.8.0
• Assignee: Staffan Friberg
• Reporter: Staffan Friberg
• Created: 23/Oct/15 18:56
• Updated: 30/Aug/16 01:24
• Resolved: 27/Oct/15 18:38

Description

Currently the log output from the Replication Monitor is the class name, by setting the name on the thread the output will be easier to read.

Current
2015-10-23 11:07:53,344 [org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor@2fbdc5dd] INFO blockmanagement.BlockManager (BlockManager.java:run(4125)) - Stopping ReplicationMonitor.

After
2015-10-23 11:07:53,344 [ReplicationMonitor] INFO blockmanagement.BlockManager (BlockManager.java:run(4125)) - Stopping ReplicationMonitor.