Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 554C4182AF for ; Mon, 8 Jun 2015 18:21:01 +0000 (UTC) Received: (qmail 46139 invoked by uid 500); 8 Jun 2015 18:21:01 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 46075 invoked by uid 500); 8 Jun 2015 18:21:01 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 46063 invoked by uid 99); 8 Jun 2015 18:21:01 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 08 Jun 2015 18:21:01 +0000 Date: Mon, 8 Jun 2015 18:21:01 +0000 (UTC) From: "Brahma Reddy Battula (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-8551) Fix hdfs datanode CLI usage message MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HDFS-8551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14577593#comment-14577593 ] Brahma Reddy Battula commented on HDFS-8551: -------------------------------------------- [~xyao] Attached the patch to address checkstyle..Kindly review..Thanks!! > Fix hdfs datanode CLI usage message > ----------------------------------- > > Key: HDFS-8551 > URL: https://issues.apache.org/jira/browse/HDFS-8551 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 2.6.0 > Reporter: Xiaoyu Yao > Assignee: Brahma Reddy Battula > Attachments: HDFS-8551-002.patch, HDFS-8551.patch > > > There are two issues with current "hdfs datanode" usage message below. > {code} > Usage: java DataNode [-regular | -rollback] > -regular : Normal DataNode startup (default). > -rollback : Rollback a standard or rolling upgrade. > Refer to HDFS documentation for the difference between standard > and rolling upgrades. > {code} > 1. "java DataNode" should be "hdfs datanode" > 2. "rollingupgrace" option is missing but it is document correctly in the [link|http://hadoop.apache.org/docs/r2.7.0/hadoop-project-dist/hadoop-hdfs/HDFSCommands.html#datanode]. > {code} > Usage: hdfs datanode [-regular | -rollback | -rollingupgrace rollback] > COMMAND_OPTION Description > -regular Normal datanode startup (default). > -rollback Rollback the datanode to the previous version. This should be used after stopping the datanode and distributing the old hadoop version. > -rollingupgrade rollback Rollback a rolling upgrade operation. > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)