Return-Path: <hdfs-issues-return-166278-archive-asf-public=cust-asf.ponee.io@hadoop.apache.org>
X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io
Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io
Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183])
	by cust-asf2.ponee.io (Postfix) with ESMTP id AFC5F200B62
	for <archive-asf-public-internal@cust-asf2.ponee.io>; Fri, 12 Aug 2016 15:30:22 +0200 (CEST)
Received: by cust-asf.ponee.io (Postfix)
	id AE69A160A85; Fri, 12 Aug 2016 13:30:22 +0000 (UTC)
Delivered-To: archive-asf-public@cust-asf.ponee.io
Received: from mail.apache.org (hermes.apache.org [140.211.11.3])
	by cust-asf.ponee.io (Postfix) with SMTP id 0247E160AB6
	for <archive-asf-public@cust-asf.ponee.io>; Fri, 12 Aug 2016 15:30:21 +0200 (CEST)
Received: (qmail 18717 invoked by uid 500); 12 Aug 2016 13:30:21 -0000
Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:hdfs-issues-help@hadoop.apache.org>
List-Unsubscribe: <mailto:hdfs-issues-unsubscribe@hadoop.apache.org>
List-Post: <mailto:hdfs-issues@hadoop.apache.org>
List-Id: <hdfs-issues.hadoop.apache.org>
Delivered-To: mailing list hdfs-issues@hadoop.apache.org
Received: (qmail 18617 invoked by uid 99); 12 Aug 2016 13:30:20 -0000
Received: from arcas.apache.org (HELO arcas) (140.211.11.28)
    by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 12 Aug 2016 13:30:20 +0000
Received: from arcas.apache.org (localhost [127.0.0.1])
	by arcas (Postfix) with ESMTP id CE4AF2C02AC
	for <hdfs-issues@hadoop.apache.org>; Fri, 12 Aug 2016 13:30:20 +0000 (UTC)
Date: Fri, 12 Aug 2016 13:30:20 +0000 (UTC)
From: "Wei-Chiu Chuang (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12996393.1470859287000.291979.1471008620842@Atlassian.JIRA>
In-Reply-To: <JIRA.12996393.1470859287000@Atlassian.JIRA>
References: <JIRA.12996393.1470859287000@Atlassian.JIRA> <JIRA.12996393.1470859287200@arcas>
Subject: [jira] [Commented] (HDFS-10747) o.a.h.hdfs.tools.DebugAdmin usage
 message is misleading
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394
archived-at: Fri, 12 Aug 2016 13:30:22 -0000


    [ https://issues.apache.org/jira/browse/HDFS-10747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15418830#comment-15418830 ] 

Wei-Chiu Chuang commented on HDFS-10747:
----------------------------------------

Yes the usage is misleading. Thanks [~liuml07] for bringing this up. I think the patch looks good to me.

> o.a.h.hdfs.tools.DebugAdmin usage message is misleading
> -------------------------------------------------------
>
>                 Key: HDFS-10747
>                 URL: https://issues.apache.org/jira/browse/HDFS-10747
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.7.0
>            Reporter: Mingliang Liu
>            Assignee: Mingliang Liu
>            Priority: Minor
>         Attachments: HDFS-10747.000.patch
>
>
> [HDFS-6917] added a helpful hdfs debug command to validate blocks and call recoverlease. The usage doc is kinda misleading, as following:
> {code}
> $ hdfs debug verify
> creating a new configuration
> verify [-meta <metadata-file>] [-block <block-file>]
>   Verify HDFS metadata and block files.  If a block file is specified, we
>   will verify that the checksums in the metadata file match the block
>   file.
> {code}
> Actually the {{-meta <metadata-file>}} is necessary. {{[]}} is for optional arguments, if we follow the [convention|http://pubs.opengroup.org/onlinepubs/9699919799].
> {code}
> $ hdfs debug recoverLease
> creating a new configuration
> recoverLease [-path <path>] [-retries <num-retries>]
>   Recover the lease on the specified path.  The path must reside on an
>   HDFS filesystem.  The default number of retries is 1.
> {code}
> {{-path <path>}} is also the same case.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org