Return-Path: X-Original-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 8EA109728 for ; Thu, 22 Dec 2011 19:37:53 +0000 (UTC) Received: (qmail 76647 invoked by uid 500); 22 Dec 2011 19:37:53 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 76587 invoked by uid 500); 22 Dec 2011 19:37:53 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-dev@hadoop.apache.org Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 76578 invoked by uid 99); 22 Dec 2011 19:37:52 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 22 Dec 2011 19:37:52 +0000 X-ASF-Spam-Status: No, hits=-2002.5 required=5.0 tests=ALL_TRUSTED,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; Thu, 22 Dec 2011 19:37:52 +0000 Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116]) by hel.zones.apache.org (Postfix) with ESMTP id 33CD6124EC4 for ; Thu, 22 Dec 2011 19:37:31 +0000 (UTC) Date: Thu, 22 Dec 2011 19:37:31 +0000 (UTC) From: "Konstantin Shvachko (Created) (JIRA)" To: hdfs-dev@hadoop.apache.org Message-ID: <899335652.40168.1324582651213.JavaMail.tomcat@hel.zones.apache.org> Subject: [jira] [Created] (HDFS-2718) Optimize OP_ADD in edits loading MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Optimize OP_ADD in edits loading -------------------------------- Key: HDFS-2718 URL: https://issues.apache.org/jira/browse/HDFS-2718 Project: Hadoop HDFS Issue Type: Bug Components: name-node Affects Versions: 0.22.0, 0.24.0, 1.0.0 Reporter: Konstantin Shvachko During loading the edits journal FSEditLog.loadEditRecords() processes OP_ADD inefficiently. It first removes the existing INodeFile from the directory tree, then adds it back as a regular INodeFile, and then replaces it with INodeFileUnderConstruction if files is not closed. This slows down edits loading. OP_ADD should be done in one shot and retain previously existing data. -- 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