svn merge -c 1475959 from trunk for HADOOP-9503. Remove sleep between IPC client connect timeouts.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1475960 13f79535-47bb-0310-9956-ffa450edef68

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -42,6 +42,9 @@ Release 2.0.5-beta - UNRELEASED
     HADOOP-9496. Bad merge of HADOOP-9450 on branch-2 breaks all bin/hadoop
     calls that need HADOOP_CLASSPATH. (harsh)
 
+    HADOOP-9503. Remove sleep between IPC client connect timeouts.
+    (Varun Sharma via szetszwo)
+
   OPTIMIZATIONS
 
     HADOOP-9150. Avoid unnecessary DNS resolution attempts for logical URIs

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java

@@ -703,12 +703,6 @@ public class Client {
       if (curRetries >= maxRetries) {
         throw ioe;
       }
-
-      // otherwise back off and retry
-      try {
-        Thread.sleep(1000);
-      } catch (InterruptedException ignored) {}
-      
       LOG.info("Retrying connect to server: " + server + ". Already tried "
           + curRetries + " time(s); maxRetries=" + maxRetries);
     }