HADOOP-7968. Errant println left in RPC.getHighestSupportedProtocol (Sho Shimauchi via harsh)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1231732 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -83,6 +83,8 @@ Trunk (unreleased changes)
 
     HADOOP-4515. Configuration#getBoolean must not be case sensitive. (Sho Shimauchi via harsh)
 
+    HADOOP-7968. Errant println left in RPC.getHighestSupportedProtocol (Sho Shimauchi via harsh)
+
   BUGS
 
     HADOOP-7851. Configuration.getClasses() never returns the default value. 

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

@@ -791,7 +791,10 @@ public class RPC {
        String protocolName) {    
      Long highestVersion = 0L;
      ProtoClassProtoImpl highest = null;
- System.out.println("Size of protoMap for " + rpcKind + " =" + getProtocolImplMap(rpcKind).size());
+     if (LOG.isDebugEnabled()) {
+       LOG.debug("Size of protoMap for " + rpcKind + " ="
+           + getProtocolImplMap(rpcKind).size());
+     }
      for (Map.Entry<ProtoNameVer, ProtoClassProtoImpl> pv : 
            getProtocolImplMap(rpcKind).entrySet()) {
        if (pv.getKey().protocol.equals(protocolName)) {