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 66828175A3 for ; Thu, 23 Apr 2015 00:21:39 +0000 (UTC) Received: (qmail 50179 invoked by uid 500); 23 Apr 2015 00:21:39 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 50058 invoked by uid 500); 23 Apr 2015 00:21:39 -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 49799 invoked by uid 99); 23 Apr 2015 00:21:39 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 23 Apr 2015 00:21:39 +0000 Date: Thu, 23 Apr 2015 00:21:39 +0000 (UTC) From: "Haohui Mai (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-7437) Storing block ids instead of BlockInfo object in INodeFile 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-7437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Haohui Mai updated HDFS-7437: ----------------------------- Attachment: (was: HDFS-7437.010.patch) > Storing block ids instead of BlockInfo object in INodeFile > ---------------------------------------------------------- > > Key: HDFS-7437 > URL: https://issues.apache.org/jira/browse/HDFS-7437 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Haohui Mai > Assignee: Haohui Mai > Attachments: HDFS-7437.000.patch, HDFS-7437.001.patch, HDFS-7437.002.patch, HDFS-7437.003.patch, HDFS-7437.004.patch, HDFS-7437.005.patch, HDFS-7437.006.patch, HDFS-7437.007.patch, HDFS-7437.008.patch > > > Currently {{INodeFile}} stores the lists of blocks as references of {{BlockInfo}} instead of the block ids. This creates implicit dependency between the namespace and the block manager. > The dependency blocks several recent efforts, such as separating the block manager out as a standalone service, moving block information off heap, and optimizing the memory usage of block manager. > This jira proposes to decouple the dependency by storing block ids instead of object reference in {{INodeFile}} objects. -- This message was sent by Atlassian JIRA (v6.3.4#6332)