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 9C124200B7C for ; Mon, 1 Aug 2016 05:28:22 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 8458D160AAA; Mon, 1 Aug 2016 03:28:22 +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 D1D27160A81 for ; Mon, 1 Aug 2016 05:28:21 +0200 (CEST) Received: (qmail 6656 invoked by uid 500); 1 Aug 2016 03:28:20 -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 6625 invoked by uid 99); 1 Aug 2016 03:28:20 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 01 Aug 2016 03:28:20 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id A59032C0D67 for ; Mon, 1 Aug 2016 03:28:20 +0000 (UTC) Date: Mon, 1 Aug 2016 03:28:20 +0000 (UTC) From: "Youwei Wang (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Comment Edited] (HDFS-8901) Use ByteBuffer in striping positional read MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Mon, 01 Aug 2016 03:28:22 -0000 [ https://issues.apache.org/jira/browse/HDFS-8901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15401473#comment-15401473 ] Youwei Wang edited comment on HDFS-8901 at 8/1/16 3:28 AM: ----------------------------------------------------------- New patch submitted. File name: HDFS-8901.v13.patch Based on commitid: 34ccaa8367f048ed9f56038efe7b3202c436b6e6 was (Author: hayabusa): New patch submitted. File name: HDFS-8901.v13.patch Commit id: 34ccaa8367f048ed9f56038efe7b3202c436b6e6 > Use ByteBuffer in striping positional read > ------------------------------------------ > > Key: HDFS-8901 > URL: https://issues.apache.org/jira/browse/HDFS-8901 > Project: Hadoop HDFS > Issue Type: Sub-task > Reporter: Kai Zheng > Assignee: Youwei Wang > Attachments: HDFS-8901-v10.patch, HDFS-8901-v2.patch, HDFS-8901-v3.patch, HDFS-8901-v4.patch, HDFS-8901-v5.patch, HDFS-8901-v6.patch, HDFS-8901-v7.patch, HDFS-8901-v8.patch, HDFS-8901-v9.patch, HDFS-8901.v11.patch, HDFS-8901.v12.patch, HDFS-8901.v13.patch, initial-poc.patch > > > Native erasure coder prefers to direct ByteBuffer for performance consideration. To prepare for it, this change uses ByteBuffer through the codes in implementing striping position read. It will also fix avoiding unnecessary data copying between striping read chunk buffers and decode input buffers. -- 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