HDFS-9299. Give ReplicationMonitor a readable thread name (Staffan Friberg via Colin P. McCabe)

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -1587,6 +1587,9 @@ Release 2.8.0 - UNRELEASED
     HDFS-9259. Make SO_SNDBUF size configurable at DFSClient side for hdfs
     write scenario. (Mingliang Liu via mingma)
 
+    HDFS-9299. Give ReplicationMonitor a readable thread name (Staffan Friberg
+    via Colin P. McCabe)
+
   OPTIMIZATIONS
 
     HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java

@@ -491,6 +491,7 @@ public class BlockManager implements BlockStatsMXBean {
   public void activate(Configuration conf) {
     pendingReplications.start();
     datanodeManager.activate(conf);
+    this.replicationThread.setName("ReplicationMonitor");
     this.replicationThread.start();
     mxBeanName = MBeans.register("NameNode", "BlockStats", this);
   }