ATLAS-3989: Updated Export-Import Audits Writer to use metadata.namespace.

common/src/main/java/org/apache/atlas/AtlasConstants.java

@@ -26,6 +26,7 @@ public final class AtlasConstants {
     }
 
     public static final String CLUSTER_NAME_KEY              = "atlas.cluster.name";
+    public static final String METADATA_NAMESPACE_KEY        = "atlas.metadata.namespace";
     public static final String DEFAULT_CLUSTER_NAME          = "primary";
     public static final String SYSTEM_PROPERTY_APP_PORT      = "atlas.app.port";
     public static final String ATLAS_REST_ADDRESS_KEY        = "atlas.rest.address";

repository/src/main/java/org/apache/atlas/repository/impexp/AuditsWriter.java

@@ -120,13 +120,17 @@ public class AuditsWriter {
     }
 
     public static String getCurrentClusterName() {
+        String ret = StringUtils.EMPTY;
         try {
-            return ApplicationProperties.get().getString(AtlasConstants.CLUSTER_NAME_KEY, CLUSTER_NAME_DEFAULT);
+            ret = ApplicationProperties.get().getString(AtlasConstants.METADATA_NAMESPACE_KEY, StringUtils.EMPTY);
+            if (StringUtils.isEmpty(ret)) {
+                ret = ApplicationProperties.get().getString(AtlasConstants.CLUSTER_NAME_KEY, CLUSTER_NAME_DEFAULT);
+            }
         } catch (AtlasException e) {
             LOG.error("getCurrentClusterName", e);
         }
 
-        return StringUtils.EMPTY;
+        return ret;
     }
 
     static String getServerNameFromFullName(String fullName) {