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 9D69418B34 for ; Tue, 1 Mar 2016 20:46:34 +0000 (UTC) Received: (qmail 64557 invoked by uid 500); 1 Mar 2016 20:46:18 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 64503 invoked by uid 500); 1 Mar 2016 20:46:18 -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 64468 invoked by uid 99); 1 Mar 2016 20:46:18 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 01 Mar 2016 20:46:18 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 41CCD2C1F5D for ; Tue, 1 Mar 2016 20:46:18 +0000 (UTC) Date: Tue, 1 Mar 2016 20:46:18 +0000 (UTC) From: "Daryn Sharp (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HADOOP-12858) Reduce UGI getGroups overhead 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-12858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Daryn Sharp updated HADOOP-12858: --------------------------------- Attachment: HADOOP-12858.patch Removed the 2 imports caught by checkstyle. > Reduce UGI getGroups overhead > ----------------------------- > > Key: HADOOP-12858 > URL: https://issues.apache.org/jira/browse/HADOOP-12858 > Project: Hadoop Common > Issue Type: Improvement > Components: performance > Affects Versions: 2.0.0-alpha > Reporter: Daryn Sharp > Assignee: Daryn Sharp > Attachments: HADOOP-12858.patch, HADOOP-12858.patch > > > Group lookup generates excessive garbage with multiple conversions between collections and arrays. -- This message was sent by Atlassian JIRA (v6.3.4#6332)