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 7375BD1FC for ; Thu, 23 May 2013 17:31:48 +0000 (UTC) Received: (qmail 60700 invoked by uid 500); 23 May 2013 17:31:43 -0000 Delivered-To: apmail-hadoop-hdfs-user-archive@hadoop.apache.org Received: (qmail 60529 invoked by uid 500); 23 May 2013 17:31:43 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hadoop.apache.org Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 60517 invoked by uid 99); 23 May 2013 17:31:42 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 23 May 2013 17:31:42 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of john.lilley@redpoint.net designates 206.225.164.223 as permitted sender) Received: from [206.225.164.223] (HELO hub021-nj-7.exch021.serverdata.net) (206.225.164.223) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 23 May 2013 17:31:35 +0000 Received: from MBX021-E3-NJ-2.exch021.domain.local ([10.240.4.78]) by HUB021-NJ-7.exch021.domain.local ([10.240.4.114]) with mapi id 14.02.0318.001; Thu, 23 May 2013 10:31:14 -0700 From: John Lilley To: "user@hadoop.apache.org" Subject: splittable vs seekable compressed formats Thread-Topic: splittable vs seekable compressed formats Thread-Index: Ac5X2yq9MIKU98xiTAukgA3w1lpw9g== Date: Thu, 23 May 2013 17:31:14 +0000 Message-ID: <869970D71E26D7498BDAC4E1CA92226B6589F1CA@MBX021-E3-NJ-2.exch021.domain.local> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [173.160.43.61] Content-Type: multipart/alternative; boundary="_000_869970D71E26D7498BDAC4E1CA92226B6589F1CAMBX021E3NJ2exch_" MIME-Version: 1.0 X-Virus-Checked: Checked by ClamAV on apache.org --_000_869970D71E26D7498BDAC4E1CA92226B6589F1CAMBX021E3NJ2exch_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I've read about splittable compressed formats in Hadoop. Are any of these = formats also "seekable" (in other words, be able to seek to an absolute loc= ation in the uncompressed data). John --_000_869970D71E26D7498BDAC4E1CA92226B6589F1CAMBX021E3NJ2exch_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I’ve read about splittable compressed formats = in Hadoop.  Are any of these formats also “seekable” (in o= ther words, be able to seek to an absolute location in the uncompressed dat= a).

John

 

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