HDFS-7733. NFS: readdir/readdirplus return null directory attribute on failure. (Contributed by Arpit Agarwal)

hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/RpcProgramNfs3.java

@@ -1577,7 +1577,9 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
         } else {
           LOG.error("CookieVerf mismatch. request cookieVerf: " + cookieVerf
               + " dir cookieVerf: " + dirStatus.getModificationTime());
-          return new READDIR3Response(Nfs3Status.NFS3ERR_BAD_COOKIE);
+          return new READDIR3Response(
+              Nfs3Status.NFS3ERR_BAD_COOKIE,
+              Nfs3Utils.getFileAttr(dfsClient, dirFileIdPath, iug));
         }
       }
 
@@ -1740,7 +1742,10 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
         } else {
           LOG.error("cookieverf mismatch. request cookieverf: " + cookieVerf
               + " dir cookieverf: " + dirStatus.getModificationTime());
-          return new READDIRPLUS3Response(Nfs3Status.NFS3ERR_BAD_COOKIE);
+          return new READDIRPLUS3Response(
+              Nfs3Status.NFS3ERR_BAD_COOKIE,
+              Nfs3Utils.getFileAttr(dfsClient, dirFileIdPath, iug),
+              0, null);
         }
       }
 

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -871,6 +871,9 @@ Release 2.6.1 - UNRELEASED
     HDFS-3443. Fix NPE when namenode transition to active during startup by
     adding checkNNStartup() in NameNodeRpcServer.  (Vinayakumar B via szetszwo)
 
+    HDFS-7733. NFS: readdir/readdirplus return null directory
+    attribute on failure. (Arpit Agarwal)
+
 Release 2.6.0 - 2014-11-18
 
   INCOMPATIBLE CHANGES