From common-issues-return-13871-apmail-hadoop-common-issues-archive=hadoop.apache.org@hadoop.apache.org Mon Apr 04 17:56:45 2011 Return-Path: Delivered-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Received: (qmail 52044 invoked from network); 4 Apr 2011 17:56:44 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 4 Apr 2011 17:56:44 -0000 Received: (qmail 93901 invoked by uid 500); 4 Apr 2011 17:56:44 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 93875 invoked by uid 500); 4 Apr 2011 17:56:44 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-issues@hadoop.apache.org Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 93867 invoked by uid 99); 4 Apr 2011 17:56:44 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 04 Apr 2011 17:56:44 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=5.0 tests=ALL_TRUSTED,T_RP_MATCHES_RCVD X-Spam-Check-By: apache.org Received: from [140.211.11.116] (HELO hel.zones.apache.org) (140.211.11.116) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 04 Apr 2011 17:56:43 +0000 Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116]) by hel.zones.apache.org (Postfix) with ESMTP id 0DA76923CE for ; Mon, 4 Apr 2011 17:56:07 +0000 (UTC) Date: Mon, 4 Apr 2011 17:56:07 +0000 (UTC) From: "Chris Douglas (JIRA)" To: common-issues@hadoop.apache.org Message-ID: <1704150167.32930.1301939767052.JavaMail.tomcat@hel.zones.apache.org> In-Reply-To: <1240879157.4951.1300837565772.JavaMail.tomcat@hel.zones.apache.org> Subject: [jira] [Commented] (HADOOP-7206) Integrate Snappy compression 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/HADOOP-7206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13015516#comment-13015516 ] Chris Douglas commented on HADOOP-7206: --------------------------------------- Arun was the original author of that module. > Integrate Snappy compression > ---------------------------- > > Key: HADOOP-7206 > URL: https://issues.apache.org/jira/browse/HADOOP-7206 > Project: Hadoop Common > Issue Type: New Feature > Reporter: Eli Collins > > Google release Zippy as an open source (APLv2) project called Snappy (http://code.google.com/p/snappy). This tracks integrating it into Hadoop. > {quote} > Snappy is a compression/decompression library. It does not aim for maximum compression, or compatibility with any other compression library; instead, it aims for very high speeds and reasonable compression. For instance, compared to the fastest mode of zlib, Snappy is an order of magnitude faster for most inputs, but the resulting compressed files are anywhere from 20% to 100% bigger. On a single core of a Core i7 processor in 64-bit mode, Snappy compresses at about 250 MB/sec or more and decompresses at about 500 MB/sec or more. > {quote} -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira