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 851BF18955 for ; Fri, 12 Feb 2016 16:31:18 +0000 (UTC) Received: (qmail 79428 invoked by uid 500); 12 Feb 2016 16:31:18 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 79361 invoked by uid 500); 12 Feb 2016 16:31:18 -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 79301 invoked by uid 99); 12 Feb 2016 16:31:18 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 12 Feb 2016 16:31:18 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 1CDF02C1F58 for ; Fri, 12 Feb 2016 16:31:18 +0000 (UTC) Date: Fri, 12 Feb 2016 16:31:18 +0000 (UTC) From: "Akira AJISAKA (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-9768) Reuse objectMapper instance in HDFS to improve the performance 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-9768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15144805#comment-15144805 ] Akira AJISAKA commented on HDFS-9768: ------------------------------------- +1, the test failure looks unrelated to the patch. > Reuse objectMapper instance in HDFS to improve the performance > -------------------------------------------------------------- > > Key: HDFS-9768 > URL: https://issues.apache.org/jira/browse/HDFS-9768 > Project: Hadoop HDFS > Issue Type: Improvement > Components: performance > Affects Versions: 2.7.1 > Reporter: Lin Yiqun > Assignee: Lin Yiqun > Attachments: HDFS-9768.001.patch, HDFS-9768.002.patch, HDFS-9768.003.patch > > > In HDFS-9724, it have reused the ObjectMapper instance to improve the performance in {{WebHDFS}}. But in other places, it still using ObjectMapper by {{new ObjectMapper()}}. We probably need a comprehensive review across the whole codebase to look for this pattern and modify them. In MAPREDUCE-6626, YARN-4668, these jiras also work for this. -- This message was sent by Atlassian JIRA (v6.3.4#6332)