HADOOP-7858. svn merge -c 1206830 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-0.23@1206835 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -15,6 +15,9 @@ Release 0.23.1 - Unreleased
 
     HADOOP-7590. Mavenize streaming and MR examples. (tucu)
 
+    HADOOP-7858. Drop some info logging to DEBUG level in IPC,
+    metrics, and HTTP. (todd via eli)
+
   OPTIMIZATIONS
 
   BUG FIXES

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/http/HttpServer.java

@@ -643,12 +643,12 @@ public class HttpServer implements FilterContainer {
         while (true) {
           try {
             port = webServer.getConnectors()[0].getLocalPort();
-            LOG.info("Port returned by webServer.getConnectors()[0]." +
+            LOG.debug("Port returned by webServer.getConnectors()[0]." +
             		"getLocalPort() before open() is "+ port + 
             		". Opening the listener on " + oriPort);
             listener.open();
             port = listener.getLocalPort();
-            LOG.info("listener.getLocalPort() returned " + listener.getLocalPort() + 
+            LOG.debug("listener.getLocalPort() returned " + listener.getLocalPort() + 
                   " webServer.getConnectors()[0].getLocalPort() returned " +
                   webServer.getConnectors()[0].getLocalPort());
             //Workaround to handle the problem reported in HADOOP-4744

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

@@ -1457,7 +1457,7 @@ public abstract class Server {
 
     @Override
     public void run() {
-      LOG.info(getName() + ": starting");
+      LOG.debug(getName() + ": starting");
       SERVER.set(Server.this);
       ByteArrayOutputStream buf = 
         new ByteArrayOutputStream(INITIAL_RESP_BUF_SIZE);
@@ -1530,7 +1530,7 @@ public abstract class Server {
           LOG.info(getName() + " caught an exception", e);
         }
       }
-      LOG.info(getName() + ": exiting");
+      LOG.debug(getName() + ": exiting");
     }
 
   }

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/impl/MetricsSystemImpl.java

@@ -241,7 +241,7 @@ public class MetricsSystemImpl extends MetricsSystem implements MetricsSource {
           injectedTags, period, config.subset(SOURCE_KEY));
     sources.put(name, sa);
     sa.start();
-    LOG.info("Registered source "+ name);
+    LOG.debug("Registered source "+ name);
   }
 
   @Override public synchronized <T extends MetricsSink>
@@ -405,8 +405,8 @@ public class MetricsSystemImpl extends MetricsSystem implements MetricsSource {
   private synchronized void stopSources() {
     for (Entry<String, MetricsSourceAdapter> entry : sources.entrySet()) {
       MetricsSourceAdapter sa = entry.getValue();
-      LOG.info("Stopping metrics source "+ entry.getKey());
-      LOG.debug(sa.source().getClass());
+      LOG.debug("Stopping metrics source "+ entry.getKey() +
+          ": class=" + sa.source().getClass());
       sa.stop();
     }
     sysSource.stop();
@@ -416,8 +416,8 @@ public class MetricsSystemImpl extends MetricsSystem implements MetricsSource {
   private synchronized void stopSinks() {
     for (Entry<String, MetricsSinkAdapter> entry : sinks.entrySet()) {
       MetricsSinkAdapter sa = entry.getValue();
-      LOG.info("Stopping metrics sink "+ entry.getKey());
-      LOG.debug(sa.sink().getClass());
+      LOG.debug("Stopping metrics sink "+ entry.getKey() +
+          ": class=" + sa.sink().getClass());
       sa.stop();
     }
     sinks.clear();