From mapreduce-dev-return-2004-apmail-hadoop-mapreduce-dev-archive=hadoop.apache.org@hadoop.apache.org Fri May 28 18:49:01 2010 Return-Path: Delivered-To: apmail-hadoop-mapreduce-dev-archive@minotaur.apache.org Received: (qmail 3661 invoked from network); 28 May 2010 18:49:00 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 28 May 2010 18:49:00 -0000 Received: (qmail 99808 invoked by uid 500); 28 May 2010 18:49:00 -0000 Delivered-To: apmail-hadoop-mapreduce-dev-archive@hadoop.apache.org Received: (qmail 99730 invoked by uid 500); 28 May 2010 18:48:59 -0000 Mailing-List: contact mapreduce-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: mapreduce-dev@hadoop.apache.org Delivered-To: mailing list mapreduce-dev@hadoop.apache.org Received: (qmail 99721 invoked by uid 99); 28 May 2010 18:48:59 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 28 May 2010 18:48:59 +0000 X-ASF-Spam-Status: No, hits=-1477.4 required=10.0 tests=ALL_TRUSTED,AWL X-Spam-Check-By: apache.org Received: from [140.211.11.22] (HELO thor.apache.org) (140.211.11.22) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 28 May 2010 18:48:59 +0000 Received: from thor (localhost [127.0.0.1]) by thor.apache.org (8.13.8+Sun/8.13.8) with ESMTP id o4SImc4V012284 for ; Fri, 28 May 2010 18:48:38 GMT Message-ID: <12836943.56121275072518663.JavaMail.jira@thor> Date: Fri, 28 May 2010 14:48:38 -0400 (EDT) From: "Scott Chen (JIRA)" To: mapreduce-dev@hadoop.apache.org Subject: [jira] Created: (MAPREDUCE-1823) Reduce the number of calls of HarFileSystem.getFileStatus in RaidNode MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Reduce the number of calls of HarFileSystem.getFileStatus in RaidNode --------------------------------------------------------------------- Key: MAPREDUCE-1823 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1823 Project: Hadoop Map/Reduce Issue Type: Improvement Affects Versions: 0.22.0 Reporter: Scott Chen Assignee: Scott Chen Fix For: 0.22.0 RaidNode makes lots of calls of HarFileSystem.getFileStatus. This method fetches information from DataNode so it is slow. It becomes the bottleneck of the RaidNode. It will be nice if we can make this more efficient. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.