YARN-985. Nodemanager should log where a resource was localized (Ravi Prakash via jeagles)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1511105 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -1143,6 +1143,9 @@ Release 0.23.10 - UNRELEASED
 
   IMPROVEMENTS
 
+    YARN-985. Nodemanager should log where a resource was localized (Ravi
+    Prakash via jeagles)
+
   OPTIMIZATIONS
 
   BUG FIXES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/LocalResourcesTrackerImpl.java

@@ -242,6 +242,7 @@ class LocalResourcesTrackerImpl implements LocalResourcesTracker {
         delService.delete(getUser(), getPathToDelete(rsrc.getLocalPath()));
       }
       decrementFileCountForLocalCacheDirectory(rem.getRequest(), rsrc);
+      LOG.info("Removed " + rsrc.getLocalPath() + " from localized cache");
       return true;
     }
   }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/LocalizedResource.java

@@ -193,8 +193,8 @@ public class LocalizedResource implements EventHandler<ResourceEvent> {
         LOG.warn("Can't handle this event at current state", e);
       }
       if (oldState != newState) {
-        LOG.info("Resource " + resourcePath + " transitioned from "
+        LOG.info("Resource " + resourcePath + (localPath != null ? 
-            + oldState
+          "(->" + localPath + ")": "") + " transitioned from " + oldState
             + " to " + newState);
       }
     } finally {