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 D80E39AA7 for ; Sat, 14 Jan 2012 00:43:01 +0000 (UTC) Received: (qmail 83140 invoked by uid 500); 14 Jan 2012 00:43:01 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 83054 invoked by uid 500); 14 Jan 2012 00:43:01 -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 83044 invoked by uid 99); 14 Jan 2012 00:43:00 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 14 Jan 2012 00:43:00 +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; Sat, 14 Jan 2012 00:42:59 +0000 Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116]) by hel.zones.apache.org (Postfix) with ESMTP id CBE2214B948 for ; Sat, 14 Jan 2012 00:42:39 +0000 (UTC) Date: Sat, 14 Jan 2012 00:42:39 +0000 (UTC) From: "Brandon Li (Assigned) (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: <222796769.40088.1326501759836.JavaMail.tomcat@hel.zones.apache.org> In-Reply-To: <600820351.61270.1323489640272.JavaMail.tomcat@hel.zones.apache.org> Subject: [jira] [Assigned] (HDFS-2655) BlockReaderLocal#skip performs unnecessary IO 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-2655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Brandon Li reassigned HDFS-2655: -------------------------------- Assignee: Brandon Li > BlockReaderLocal#skip performs unnecessary IO > --------------------------------------------- > > Key: HDFS-2655 > URL: https://issues.apache.org/jira/browse/HDFS-2655 > Project: Hadoop HDFS > Issue Type: Improvement > Components: data-node > Affects Versions: 0.23.1 > Reporter: Eli Collins > Assignee: Brandon Li > > Per HDFS-2654 BlockReaderLocal#skip performs the skip by reading the data so we stay in sync with checksums. This could be implemented more efficiently in the future to skip to the beginning of the appropriate checksum chunk and then only read to the middle of that chunk. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira