HDFS-2056. Update fetchdt usage. Contributed by Tanping Wang.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hdfs/trunk@1134170 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/CHANGES.txt b/CHANGES.txt
index afbe7ff..87e82ab 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -513,6 +513,8 @@
HDFS-2030. Improve usability of namenode -upgrade command.
(Bharath Mundlapudi via suresh)
+ HDFS-2056. Update fetchdt usage. (Tanping Wang via jitendra)
+
BUG FIXES
HDFS-1449. Fix test failures - ExtendedBlock must return
diff --git a/src/java/org/apache/hadoop/hdfs/tools/DelegationTokenFetcher.java b/src/java/org/apache/hadoop/hdfs/tools/DelegationTokenFetcher.java
index 6129afc..d085534 100644
--- a/src/java/org/apache/hadoop/hdfs/tools/DelegationTokenFetcher.java
+++ b/src/java/org/apache/hadoop/hdfs/tools/DelegationTokenFetcher.java
@@ -80,7 +80,8 @@
err.println(" --webservice <url> Url to contact NN on");
err.println(" --renewer <name> Name of the delegation token renewer");
err.println(" --cancel Cancel the delegation token");
- err.println(" --renew Renew the delegation token");
+ err.println(" --renew Renew the delegation token. Delegation "
+ + "token must have been fetched using the --renewer <name> option.");
err.println(" --print Print the delegation token");
err.println();
GenericOptionsParser.printGenericCommandUsage(err);
