SAMZA-994: fix StreamAppender start up issue w/ refactored JobCoordinator
diff --git a/samza-log4j/src/main/java/org/apache/samza/logging/log4j/StreamAppender.java b/samza-log4j/src/main/java/org/apache/samza/logging/log4j/StreamAppender.java
index ca4eb7f..5b532bc 100644
--- a/samza-log4j/src/main/java/org/apache/samza/logging/log4j/StreamAppender.java
+++ b/samza-log4j/src/main/java/org/apache/samza/logging/log4j/StreamAppender.java
@@ -53,7 +53,7 @@
 public class StreamAppender extends AppenderSkeleton {
 
   private static final String JAVA_OPTS_CONTAINER_NAME = "samza.container.name";
-  private static final String APPLICATION_MASTER_TAG = "samza-application-master";
+  private static final String JOB_COORDINATOR_TAG = "samza-job-coordinator";
   private static final String SOURCE = "log4j-log";
   private Config config = null;
   private SystemStream systemStream = null;
@@ -82,7 +82,7 @@
   public void activateOptions() {
     String containerName = System.getProperty(JAVA_OPTS_CONTAINER_NAME);
     if (containerName != null) {
-      isApplicationMaster = containerName.contains(APPLICATION_MASTER_TAG);
+      isApplicationMaster = containerName.contains(JOB_COORDINATOR_TAG);
     } else {
       throw new SamzaException("Got null container name from system property: " + JAVA_OPTS_CONTAINER_NAME +
           ". This is used as the key for the log appender, so can't proceed.");
diff --git a/samza-log4j/src/test/java/org/apache/samza/logging/log4j/TestStreamAppender.java b/samza-log4j/src/test/java/org/apache/samza/logging/log4j/TestStreamAppender.java
index e2e17a0..59669b7 100644
--- a/samza-log4j/src/test/java/org/apache/samza/logging/log4j/TestStreamAppender.java
+++ b/samza-log4j/src/test/java/org/apache/samza/logging/log4j/TestStreamAppender.java
@@ -95,7 +95,7 @@
 
   @Test
   public void testSystemProducerAppenderInAM() {
-    System.setProperty("samza.container.name", "samza-application-master");
+    System.setProperty("samza.container.name", "samza-job-coordinator");
 
     MockSystemProducerAppender systemProducerAppender = new MockSystemProducerAppender();
     PatternLayout layout = new PatternLayout();