HADOOP-12828. Print user when services are started. (Wei-Chiu Chuang via Yongjun Zhang)

(cherry picked from commit a963baba10648859ad88d4ed9a4325b66b1af0d5)

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

@@ -411,6 +411,9 @@ Release 2.8.0 - UNRELEASED
     HADOOP-11031. Design Document for Credential Provider API.
     (Larry McCay via cnauroth)
 
+    HADOOP-12828. Print user when services are started.
+    (Wei-Chiu Chuang via Yongjun Zhang) 
+
   OPTIMIZATIONS
 
     HADOOP-11785. Reduce the number of listStatus operation in distcp

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/StringUtils.java

@@ -687,6 +687,7 @@ public class StringUtils {
     LOG.info(
         toStartupShutdownString("STARTUP_MSG: ", new String[] {
             "Starting " + classname,
+            "  user = " + System.getProperty("user.name"),
             "  host = " + hostname,
             "  args = " + Arrays.asList(args),
             "  version = " + VersionInfo.getVersion(),

hadoop-common-project/hadoop-kms/src/main/java/org/apache/hadoop/crypto/key/kms/server/KMSWebApp.java

@@ -124,6 +124,7 @@ public class KMSWebApp implements ServletContextListener {
       LOG.info("-------------------------------------------------------------");
       LOG.info("  Java runtime version : {}", System.getProperty(
           "java.runtime.version"));
+      LOG.info("  User: {}", System.getProperty("user.name"));
       LOG.info("  KMS Hadoop Version: " + VersionInfo.getVersion());
       LOG.info("-------------------------------------------------------------");