Return-Path: X-Original-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-common-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 006CC173B8 for ; Thu, 29 Jan 2015 21:24:36 +0000 (UTC) Received: (qmail 92708 invoked by uid 500); 29 Jan 2015 21:24:36 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 92652 invoked by uid 500); 29 Jan 2015 21:24:36 -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 92640 invoked by uid 99); 29 Jan 2015 21:24:36 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 29 Jan 2015 21:24:36 +0000 Date: Thu, 29 Jan 2015 21:24:36 +0000 (UTC) From: "Gera Shegalov (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HADOOP-11506) Configuration.get() is unnecessarily slow 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-11506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14297703#comment-14297703 ] Gera Shegalov commented on HADOOP-11506: ---------------------------------------- Can you review this patch, [~andrew.wang]? > Configuration.get() is unnecessarily slow > ----------------------------------------- > > Key: HADOOP-11506 > URL: https://issues.apache.org/jira/browse/HADOOP-11506 > Project: Hadoop Common > Issue Type: Bug > Reporter: Dmitriy V. Ryaboy > Assignee: Gera Shegalov > Attachments: HADOOP-11506.001.patch, HADOOP-11506.002.patch > > > Profiling several large Hadoop jobs, we discovered that a surprising amount of time was spent inside Configuration.get, more specifically, in regex matching caused by the substituteVars call. -- This message was sent by Atlassian JIRA (v6.3.4#6332)