Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 56704200B8F for ; Fri, 30 Sep 2016 22:39:27 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 55030160AD9; Fri, 30 Sep 2016 20:39:27 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id C2FE2160AB4 for ; Fri, 30 Sep 2016 22:39:26 +0200 (CEST) Received: (qmail 32680 invoked by uid 500); 30 Sep 2016 20:39:20 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 32336 invoked by uid 99); 30 Sep 2016 20:39:20 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 30 Sep 2016 20:39:20 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id A4E5B2C2A67 for ; Fri, 30 Sep 2016 20:39:20 +0000 (UTC) Date: Fri, 30 Sep 2016 20:39:20 +0000 (UTC) From: "Daryn Sharp (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-10940) Reduce performance penalty of block caching when not used MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Fri, 30 Sep 2016 20:39:27 -0000 [ https://issues.apache.org/jira/browse/HDFS-10940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Daryn Sharp updated HDFS-10940: ------------------------------- Status: Patch Available (was: Open) > Reduce performance penalty of block caching when not used > --------------------------------------------------------- > > Key: HDFS-10940 > URL: https://issues.apache.org/jira/browse/HDFS-10940 > Project: Hadoop HDFS > Issue Type: Improvement > Components: namenode > Affects Versions: 2.7 > Reporter: Daryn Sharp > Assignee: Daryn Sharp > Attachments: HDFS-10940.patch > > > For every block location generated, the CacheManager will create a junk object for a hash lookup of cached locations. If there are no cached blocks, none of this is required. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org