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 9D41110347 for ; Mon, 21 Oct 2013 20:25:55 +0000 (UTC) Received: (qmail 19507 invoked by uid 500); 21 Oct 2013 20:25:54 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 19397 invoked by uid 500); 21 Oct 2013 20:25:46 -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 19351 invoked by uid 99); 21 Oct 2013 20:25:42 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 21 Oct 2013 20:25:42 +0000 Date: Mon, 21 Oct 2013 20:25:42 +0000 (UTC) From: "Colin Patrick McCabe (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-5394) fix race conditions in DN caching and uncaching 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-5394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Colin Patrick McCabe updated HDFS-5394: --------------------------------------- Attachment: HDFS-5394-caching.003.patch rebase after recent patches hit > fix race conditions in DN caching and uncaching > ----------------------------------------------- > > Key: HDFS-5394 > URL: https://issues.apache.org/jira/browse/HDFS-5394 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode, namenode > Affects Versions: HDFS-4949 > Reporter: Colin Patrick McCabe > Assignee: Colin Patrick McCabe > Attachments: HDFS-5394-caching.001.patch, HDFS-5394-caching.002.patch, HDFS-5394-caching.003.patch > > > The DN needs to handle situations where it is asked to cache the same replica more than once. (Currently, it can actually do two mmaps and mlocks.) It also needs to handle the situation where caching a replica is cancelled before said caching completes. -- This message was sent by Atlassian JIRA (v6.1#6144)