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 77580200BF4 for ; Fri, 6 Jan 2017 23:04:00 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id 7620E160B4C; Fri, 6 Jan 2017 22:04:00 +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 C8591160B37 for ; Fri, 6 Jan 2017 23:03:59 +0100 (CET) Received: (qmail 15333 invoked by uid 500); 6 Jan 2017 22:03:58 -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 15302 invoked by uid 99); 6 Jan 2017 22:03:58 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 06 Jan 2017 22:03:58 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 9AABA2C03DE for ; Fri, 6 Jan 2017 22:03:58 +0000 (UTC) Date: Fri, 6 Jan 2017 22:03:58 +0000 (UTC) From: "Hadoop QA (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-7142) Implement a 2Q eviction strategy for HDFS-6581 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Fri, 06 Jan 2017 22:04:00 -0000 [ https://issues.apache.org/jira/browse/HDFS-7142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15805921#comment-15805921 ] Hadoop QA commented on HDFS-7142: --------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s{color} | {color:blue} Docker mode activated. {color} | | {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 10s{color} | {color:red} HDFS-7142 does not apply to trunk. Rebase required? Wrong Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} | \\ \\ || Subsystem || Report/Notes || | JIRA Issue | HDFS-7142 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12674624/HDFS-7142.003.patch | | Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/18065/console | | Powered by | Apache Yetus 0.5.0-SNAPSHOT http://yetus.apache.org | This message was automatically generated. > Implement a 2Q eviction strategy for HDFS-6581 > ---------------------------------------------- > > Key: HDFS-7142 > URL: https://issues.apache.org/jira/browse/HDFS-7142 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode > Affects Versions: 2.7.0 > Reporter: Colin P. McCabe > Assignee: Colin P. McCabe > Attachments: 0002-Add-RamDiskReplica2QTracker.patch, HDFS-7142.003.patch > > > We should implement a 2Q or approximate 2Q eviction strategy for HDFS-6581. It is well known that LRU is a poor fit for scanning workloads, which HDFS may often encounter. -- 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