Return-Path: Delivered-To: apmail-hadoop-common-user-archive@www.apache.org Received: (qmail 12811 invoked from network); 28 May 2010 01:20:51 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 28 May 2010 01:20:51 -0000 Received: (qmail 4438 invoked by uid 500); 28 May 2010 01:20:49 -0000 Delivered-To: apmail-hadoop-common-user-archive@hadoop.apache.org Received: (qmail 4380 invoked by uid 500); 28 May 2010 01:20:49 -0000 Mailing-List: contact common-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-user@hadoop.apache.org Delivered-To: mailing list common-user@hadoop.apache.org Received: (qmail 4372 invoked by uid 99); 28 May 2010 01:20:49 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 28 May 2010 01:20:49 +0000 X-ASF-Spam-Status: No, hits=0.7 required=10.0 tests=SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [69.147.107.21] (HELO mrout2-b.corp.re1.yahoo.com) (69.147.107.21) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 28 May 2010 01:20:42 +0000 Received: from pbug.corp.yahoo.com (pbug.corp.yahoo.com [207.126.231.185]) by mrout2-b.corp.re1.yahoo.com (8.13.8/8.13.8/y.out) with ESMTP id o4S1JKN8006839 for ; Thu, 27 May 2010 18:19:21 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; s=serpent; d=yahoo-inc.com; c=nofws; q=dns; h=received:date:message-id:from:reply-to:to:subject:in-reply-to; b=CA0s6kvxKLgu71S39NhkL4bknjT8j8X8/cTgMV/Lzf24dpjkMbxx9qR/IP43wtKI Received: (from roelofs@localhost) by pbug.corp.yahoo.com (8.12.11/8.12.11/Submit) id o4S1JKSY009697 for common-user@hadoop.apache.org; Thu, 27 May 2010 18:19:20 -0700 Date: Thu, 27 May 2010 18:19:20 -0700 Message-Id: <201005280119.o4S1JKSY009697@pbug.corp.yahoo.com> From: Greg Roelofs Reply-To: Greg Roelofs To: common-user@hadoop.apache.org Subject: Re: Encryption in Hadoop 0.20.1? In-Reply-To: X-Virus-Checked: Checked by ClamAV on apache.org Owen wrote: > For details of how to configure your mapreduce job with compression > (or in this case encryption), look at http://bit.ly/9PMHUA. Since Arv asked about doing both: in case it's not obvious, compress _first_, then encrypt. (In fact, this is exactly what PGP, GnuPG, etc., do.) Greg