HDFS-7940. Add tracing to DFSClient#setQuotaByStorageType (Rakesh R via Colin P. McCabe)

(cherry picked from commit d8846707c5)
(cherry picked from commit 455d4aa8a1)

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

@@ -434,6 +434,9 @@ Release 2.7.0 - UNRELEASED
     HDFS-2605. Remove redundant "Release 0.21.1" section from CHANGES.txt.
     (Allen Wittenauer via shv)
 
+    HDFS-7940. Add tracing to DFSClient#setQuotaByStorageType (Rakesh R via
+    Colin P. McCabe)
+
   OPTIMIZATIONS
 
     HDFS-7454. Reduce memory footprint for AclEntries in NameNode.

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSClient.java

@@ -3088,6 +3088,7 @@ public class DFSClient implements java.io.Closeable, RemotePeerFactory,
       throw new IllegalArgumentException("Don't support Quota for storage type : "
         + type.toString());
     }
+    TraceScope scope = getPathTraceScope("setQuotaByStorageType", src);
     try {
       namenode.setQuota(src, HdfsConstants.QUOTA_DONT_SET, quota, type);
     } catch (RemoteException re) {
@@ -3096,6 +3097,8 @@ public class DFSClient implements java.io.Closeable, RemotePeerFactory,
         QuotaByStorageTypeExceededException.class,
         UnresolvedPathException.class,
         SnapshotAccessControlException.class);
+    } finally {
+      scope.close();
     }
   }
   /**