Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 1977D17C33 for ; Wed, 11 Mar 2015 21:19:55 +0000 (UTC) Received: (qmail 29013 invoked by uid 500); 11 Mar 2015 21:19:39 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 28955 invoked by uid 500); 11 Mar 2015 21:19:39 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 28944 invoked by uid 99); 11 Mar 2015 21:19:39 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 11 Mar 2015 21:19:39 +0000 Date: Wed, 11 Mar 2015 21:19:38 +0000 (UTC) From: "Rashmi Vinayak (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-7715) Implement the Hitchhiker erasure coding algorithm 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/HDFS-7715?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Rashmi Vinayak updated HDFS-7715: --------------------------------- Description: [Hitchhiker | http://www.eecs.berkeley.edu/~nihar/publications/Hitchhiker_SIGCOMM14.pdf] is a new erasure coding algorithm developed as a research project at UC Berkeley. It has been shown to reduce network traffic and disk I/O by 25%-45% during data reconstruction. This JIRA aims to introduce Hitchhiker to the HDFS-EC framework, as one of the pluggable codec algorithms. The existing implementation is based on HDFS-RAID. was: [Hitchhiker | http://www.eecs.berkeley.edu/~nihar/publications/Hitchhiker_SIGCOMM14.pdf] is a new erasure coding algorithm developed as a research project at UC Berkeley. It has been shown to reduce network traffic and disk I/O by 25% and 45% during data reconstruction. This JIRA aims to introduce Hitchhiker to the HDFS-EC framework, as one of the pluggable codec algorithms. The existing implementation is based on HDFS-RAID. > Implement the Hitchhiker erasure coding algorithm > ------------------------------------------------- > > Key: HDFS-7715 > URL: https://issues.apache.org/jira/browse/HDFS-7715 > Project: Hadoop HDFS > Issue Type: Sub-task > Reporter: Zhe Zhang > Assignee: jack liuquan > > [Hitchhiker | http://www.eecs.berkeley.edu/~nihar/publications/Hitchhiker_SIGCOMM14.pdf] is a new erasure coding algorithm developed as a research project at UC Berkeley. It has been shown to reduce network traffic and disk I/O by 25%-45% during data reconstruction. This JIRA aims to introduce Hitchhiker to the HDFS-EC framework, as one of the pluggable codec algorithms. > The existing implementation is based on HDFS-RAID. -- This message was sent by Atlassian JIRA (v6.3.4#6332)