From hdfs-dev-return-8252-apmail-hadoop-hdfs-dev-archive=hadoop.apache.org@hadoop.apache.org Thu Nov 8 23:16:11 2012 Return-Path: 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 81688D21E for ; Thu, 8 Nov 2012 23:15:47 +0000 (UTC) Received: (qmail 72575 invoked by uid 500); 8 Nov 2012 23:15:46 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 72507 invoked by uid 500); 8 Nov 2012 23:15:46 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-dev@hadoop.apache.org Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 72498 invoked by uid 99); 8 Nov 2012 23:15:46 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 08 Nov 2012 23:15:46 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of sqlxweiwei@gmail.com designates 209.85.223.176 as permitted sender) Received: from [209.85.223.176] (HELO mail-ie0-f176.google.com) (209.85.223.176) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 08 Nov 2012 23:15:39 +0000 Received: by mail-ie0-f176.google.com with SMTP id k11so5809724iea.35 for ; Thu, 08 Nov 2012 15:15:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=p++bqDKo2gge5gFDpzzr36h4iyiAt9VYKZHRuEHfcV0=; b=qOtay6AIFsFHfDKOCwm7G/yQpo5q5C6yW00AZWW5JvNjSkZcRmXSIHLKYq4Zp5k9pi BhEQ7RmR1fI7sWrHzDtSdlx8XwXK0u6P8jkFJQ9EH+sQ+scc0oOPiDBe7QKcYD7W36Nh XZsW+xTixl8l3rvC6pPIUw6hpw5Zobtdqy4VAFv4l+QfmSDHXsQ3KWWK+4caKeTlv2EB ISvdqn9q7KKMNs2FxRuTusiQ2Mf0+H8Q5iVlifhXdNJr12M9dL0K0dCLsg3ViD13+/Ot 57PmUj/XuLMhK547uhouKxSJimeUN+LK0Viqzaa4fmyGBe1zbaXC1BBB50GEM9O8rqwP Anrw== MIME-Version: 1.0 Received: by 10.42.50.6 with SMTP id y6mr8678159icf.35.1352416518259; Thu, 08 Nov 2012 15:15:18 -0800 (PST) Received: by 10.50.49.72 with HTTP; Thu, 8 Nov 2012 15:15:18 -0800 (PST) Date: Thu, 8 Nov 2012 17:15:18 -0600 Message-ID: Subject: Create a data block in a certain data node From: Vivi Lang To: hdfs-dev@hadoop.apache.org Content-Type: multipart/alternative; boundary=90e6ba10b07d28c3f804ce040258 X-Virus-Checked: Checked by ClamAV on apache.org --90e6ba10b07d28c3f804ce040258 Content-Type: text/plain; charset=ISO-8859-1 Hi all, If I want have get a inputstream in a datanode (and this should contains exactly 64MB data which I want to replace the content of an existing data block to store that content), can anyone tell me which is the easiest way to do this? Moreover, I would like to write this stream in the local datanode. Thanks, --90e6ba10b07d28c3f804ce040258--