Return-Path: X-Original-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 4DE2A95C4 for ; Mon, 9 Apr 2012 10:16:19 +0000 (UTC) Received: (qmail 32348 invoked by uid 500); 9 Apr 2012 10:16:18 -0000 Delivered-To: apmail-hadoop-hdfs-user-archive@hadoop.apache.org Received: (qmail 32266 invoked by uid 500); 9 Apr 2012 10:16:18 -0000 Mailing-List: contact hdfs-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-user@hadoop.apache.org Delivered-To: mailing list hdfs-user@hadoop.apache.org Received: (qmail 32257 invoked by uid 99); 9 Apr 2012 10:16:18 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 09 Apr 2012 10:16:18 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of stan.ieugen@gmail.com designates 209.85.212.48 as permitted sender) Received: from [209.85.212.48] (HELO mail-vb0-f48.google.com) (209.85.212.48) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 09 Apr 2012 10:16:12 +0000 Received: by vbjk17 with SMTP id k17so3273679vbj.35 for ; Mon, 09 Apr 2012 03:15:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=3xyBc513EgpjA4WYpcfFvulrlfuSpY8MWwJjDjdTw4g=; b=fwD8Y2B/yq4r+SMLJmdrhWNUkRS1+zmb5HC/DsFY6GrBrcyWpVuIiAE2Gd1YQjVOnL wrXn+IAu1CRXz6LInDVahIo6WkV0XHygzKMA6Ejh1GHhKVuo9T0zFoEPbPhnhkpRwVBW lDp4WwLmGqYTBcrbUOb/he68NfO+D7XvkYdZBNrMAalsSAA7T++HI4jp+B4RDwUu0EOK +9LhasO8D6WcPrHSwYS6sKO8kYUu8EUOAhp3EsZ45BMuSf5lKS8Pr9PLgQLrurrP/3r5 lcLtjpWo2HH4HmprrB1bJN9rlGQEmidX9q81vevwL5p1LQ6lYbTGAVcPayOUdW8dmv9g MQGQ== MIME-Version: 1.0 Received: by 10.52.33.67 with SMTP id p3mr2708157vdi.18.1333966551862; Mon, 09 Apr 2012 03:15:51 -0700 (PDT) Received: by 10.52.101.195 with HTTP; Mon, 9 Apr 2012 03:15:51 -0700 (PDT) In-Reply-To: <1333822777.56779.YahooMailNeo@web132103.mail.ird.yahoo.com> References: <1333822777.56779.YahooMailNeo@web132103.mail.ird.yahoo.com> Date: Mon, 9 Apr 2012 13:15:51 +0300 Message-ID: Subject: Re: Is append allowed in HDFS? From: Ioan Eugen Stan To: hdfs-user@hadoop.apache.org, Florin P Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Virus-Checked: Checked by ClamAV on apache.org 2012/4/7 Florin P : > Hello! > =C2=A0 Just google it for supporting of append into HDFS files and the re= sult: > I'm puzzled. Can someone say: YES you can append in TextFile or SequenceF= ile > or whatever format. If yes, in which version this feature is supported ? > Also where can I find a good example of using the API? I know that is a l= ong > debate about this subject, but really it is challenge to find on the goog= le > the current status of this feature. > I look forward for a trust source answer. > Thank you, > =C2=A0 Regards, > =C2=A0=C2=A0 Florin Hi Florian, HDFS supports append in Hadoop 1.0.x branch and also 0.22 (a.k.a hadoop 2.x branch) and 0.23 (a.k.a hadoop 3.x branch). [1] http://hbase.apache.org/book/hadoop.html [2] http://hbase.apache.org/book/hadoop.html -- search for append in release notes Cheers, --=20 Ioan Eugen Stan http://ieugen.blogspot.com/