HDFS-6018. Merge change r1572184 from branch-2.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.4@1572185 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -94,6 +94,9 @@ Release 2.4.0 - UNRELEASED
     HDFS-6006. Remove duplicate code in FSNameSystem#getFileInfo.
     (Akira Ajisaka via cnauroth)
 
+    HDFS-6018. Exception recorded in LOG when IPCLoggerChannel#close is called.
+    (jing9)
+
   OPTIMIZATIONS
 
     HDFS-5790. LeaseManager.findPath is very slow when many leases need recovery

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/IPCLoggerChannel.java

@@ -181,7 +181,6 @@ public class IPCLoggerChannel implements AsyncLogger {
   
   @Override
   public void close() {
-    QuorumJournalManager.LOG.info("Closing", new Exception());
     // No more tasks may be submitted after this point.
     executor.shutdown();
     if (proxy != null) {