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 3C18CE711 for ; Tue, 26 Feb 2013 02:10:13 +0000 (UTC) Received: (qmail 46467 invoked by uid 500); 26 Feb 2013 02:10:13 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 46432 invoked by uid 500); 26 Feb 2013 02:10:12 -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 46423 invoked by uid 99); 26 Feb 2013 02:10:12 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 26 Feb 2013 02:10:12 +0000 Date: Tue, 26 Feb 2013 02:10:12 +0000 (UTC) From: "Aaron T. Myers (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-4523) Fix concat for snapshots 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-4523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13586631#comment-13586631 ] Aaron T. Myers commented on HDFS-4523: -------------------------------------- Even on development branches we still do RTC and discuss how features should work before committing them. I don't see why this is any different. The fact that the feature isn't fully functional yet has nothing to do with how it should work. > Fix concat for snapshots > ------------------------ > > Key: HDFS-4523 > URL: https://issues.apache.org/jira/browse/HDFS-4523 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: namenode > Reporter: Tsz Wo (Nicholas), SZE > Assignee: Tsz Wo (Nicholas), SZE > Attachments: h4523_20130222.patch, h4523_20130223.patch, h4523_20130225b.patch, h4523_20130225.patch > > > The use case of concat is for copying large files across clusters using the following steps. > - Step 1: The blocks of a file in the source cluster are copied in parallel to transient files in the destination cluster. > - Step 2: Then the transient files in the destination cluster are concatenated in order to obtain the original file. > If a snapshot is taken in the destination cluster before Step 2, some transient files may be captured in the snapshot. These transient files should be removed in Step 2. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira