YARN-1381. Same relaxLocality appears twice in exception message of AMRMClientImpl#checkLocalityRelaxationConflict() (Ted Yu via Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.2@1537635 13f79535-47bb-0310-9956-ffa450edef68

hadoop-yarn-project/CHANGES.txt

@@ -74,6 +74,9 @@ Release 2.2.1 - UNRELEASED
     YARN-1343. NodeManagers additions/restarts are not reported as node updates 
     in AllocateResponse responses to AMs. (tucu)
 
+    YARN-1381. Same relaxLocality appears twice in exception message of
+    AMRMClientImpl#checkLocalityRelaxationConflict() (Ted Yu via Sandy Ryza)
+
 Release 2.2.0 - 2013-10-13
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/api/impl/AMRMClientImpl.java

@@ -499,13 +499,15 @@ public class AMRMClientImpl<T extends ContainerRequest> extends AMRMClient<T> {
     for (String location : locations) {
         TreeMap<Resource, ResourceRequestInfo> reqs =
             remoteRequests.get(location);
-        if (reqs != null && !reqs.isEmpty()
-            && reqs.values().iterator().next().remoteRequest.getRelaxLocality()
-            != relaxLocality) {
-          throw new InvalidContainerRequestException("Cannot submit a "
-              + "ContainerRequest asking for location " + location
-              + " with locality relaxation " + relaxLocality + " when it has "
-              + "already been requested with locality relaxation " + relaxLocality);
+        if (reqs != null && !reqs.isEmpty()) {
+          boolean existingRelaxLocality =
+              reqs.values().iterator().next().remoteRequest.getRelaxLocality();
+          if (relaxLocality != existingRelaxLocality) {
+            throw new InvalidContainerRequestException("Cannot submit a "
+                + "ContainerRequest asking for location " + location
+                + " with locality relaxation " + relaxLocality + " when it has "
+                + "already been requested with locality relaxation " + existingRelaxLocality);
+          }
         }
       }
   }