Return-Path: 
 <hdfs-dev-return-11708-apmail-hadoop-hdfs-dev-archive=hadoop.apache.org@hadoop.apache.org>
X-Original-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org
Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org
Received: from mail.apache.org (hermes.apache.org [140.211.11.3])
	by minotaur.apache.org (Postfix) with SMTP id BDC9410403
	for <apmail-hadoop-hdfs-dev-archive@minotaur.apache.org>;
 Mon, 14 Oct 2013 23:36:47 +0000 (UTC)
Received: (qmail 83983 invoked by uid 500); 14 Oct 2013 23:36:45 -0000
Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org
Received: (qmail 83895 invoked by uid 500); 14 Oct 2013 23:36:45 -0000
Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:hdfs-dev-help@hadoop.apache.org>
List-Unsubscribe: <mailto:hdfs-dev-unsubscribe@hadoop.apache.org>
List-Post: <mailto:hdfs-dev@hadoop.apache.org>
List-Id: <hdfs-dev.hadoop.apache.org>
Reply-To: hdfs-dev@hadoop.apache.org
Delivered-To: mailing list hdfs-dev@hadoop.apache.org
Received: (qmail 83886 invoked by uid 99); 14 Oct 2013 23:36:45 -0000
Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28)
    by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 14 Oct 2013 23:36:45 +0000
Date: Mon, 14 Oct 2013 23:36:45 +0000 (UTC)
From: "Shinichi Yamashita (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Message-ID: <JIRA.12673789.1381793753595.62902.1381793805347@arcas>
In-Reply-To: <JIRA.12673789.1381793753595@arcas>
References: <JIRA.12673789.1381793753595@arcas>
Subject: [jira] [Created] (HDFS-5360) Improvement of usage message of
 renameSnapshot and deleteSnapshot
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394

Shinichi Yamashita created HDFS-5360:
----------------------------------------

             Summary: Improvement of usage message of renameSnapshot and deleteSnapshot
                 Key: HDFS-5360
                 URL: https://issues.apache.org/jira/browse/HDFS-5360
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: snapshots
    Affects Versions: 3.0.0
            Reporter: Shinichi Yamashita
            Priority: Minor


When the argument of "hdfs dfs -createSnapshot" comamnd is inappropriate, it is displayed as follows.

{code}
[hadoop@trunk ~]$ hdfs dfs -createSnapshot
-createSnapshot: <snapshotDir> is missing.
Usage: hadoop fs [generic options] -createSnapshot <snapshotDir> [<snapshotName>]
{code}

On the other hands, the commands of "-renameSnapshot" and "-deleteSnapshot" is displayed as follows. And there are not kind for the user.

{code}
[hadoop@trunk ~]$ hdfs dfs -renameSnapshot
renameSnapshot: args number not 3: 0

[hadoop@trunk ~]$ hdfs dfs -deleteSnapshot
deleteSnapshot: args number not 2: 0
{code}

It changes "-renameSnapshot" and "-deleteSnapshot" to output the message which is similar to "-createSnapshot".



--
This message was sent by Atlassian JIRA
(v6.1#6144)