Return-Path: X-Original-To: apmail-hadoop-common-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-common-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 26CAF1875C for ; Tue, 2 Feb 2016 03:24:27 +0000 (UTC) Received: (qmail 22734 invoked by uid 500); 2 Feb 2016 03:09:22 -0000 Delivered-To: apmail-hadoop-common-issues-archive@hadoop.apache.org Received: (qmail 22629 invoked by uid 500); 2 Feb 2016 03:09:21 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-issues@hadoop.apache.org Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 21262 invoked by uid 99); 2 Feb 2016 03:02:44 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 02 Feb 2016 03:02:44 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 962EB2C1F8C for ; Tue, 2 Feb 2016 03:02:40 +0000 (UTC) Date: Tue, 2 Feb 2016 03:02:40 +0000 (UTC) From: "Hadoop QA (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HADOOP-12041) Implement another Reed-Solomon coder in pure Java 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/HADOOP-12041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15127548#comment-15127548 ] Hadoop QA commented on HADOOP-12041: ------------------------------------ | (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:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s {color} | {color:green} The patch does not contain any @author tags. {color} | | {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 0s {color} | {color:green} The patch appears to include 4 new or modified test files. {color} | | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 8s {color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 14s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 59s {color} | {color:green} trunk passed with JDK v1.8.0_66 {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m 34s {color} | {color:green} trunk passed with JDK v1.7.0_91 {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 22s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 10s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 15s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 55s {color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 0s {color} | {color:green} trunk passed with JDK v1.8.0_66 {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 8s {color} | {color:green} trunk passed with JDK v1.7.0_91 {color} | | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 8s {color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 45s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m 11s {color} | {color:green} the patch passed with JDK v1.8.0_66 {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 7m 11s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 7m 40s {color} | {color:green} the patch passed with JDK v1.7.0_91 {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 7m 40s {color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 22s {color} | {color:red} hadoop-common-project/hadoop-common: patch generated 2 new + 8 unchanged - 1 fixed = 10 total (was 9) {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 6s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 14s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s {color} | {color:green} Patch has no whitespace issues. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 12s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 58s {color} | {color:green} the patch passed with JDK v1.8.0_66 {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 7s {color} | {color:green} the patch passed with JDK v1.7.0_91 {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m 17s {color} | {color:green} hadoop-common in the patch passed with JDK v1.8.0_66. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m 15s {color} | {color:green} hadoop-common in the patch passed with JDK v1.7.0_91. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 25s {color} | {color:green} Patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 67m 48s {color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Image:yetus/hadoop:0ca8df7 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12785663/HADOOP-12041-v7.patch | | JIRA Issue | HADOOP-12041 | | Optional Tests | asflicense compile javac javadoc mvninstall mvnsite unit findbugs checkstyle | | uname | Linux 74520a24934b 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh | | git revision | trunk / ed55950 | | Default Java | 1.7.0_91 | | Multi-JDK versions | /usr/lib/jvm/java-8-oracle:1.8.0_66 /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_91 | | findbugs | v3.0.0 | | checkstyle | https://builds.apache.org/job/PreCommit-HADOOP-Build/8506/artifact/patchprocess/diff-checkstyle-hadoop-common-project_hadoop-common.txt | | JDK v1.7.0_91 Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/8506/testReport/ | | modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common | | Max memory used | 76MB | | Powered by | Apache Yetus 0.2.0-SNAPSHOT http://yetus.apache.org | | Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/8506/console | This message was automatically generated. > Implement another Reed-Solomon coder in pure Java > ------------------------------------------------- > > Key: HADOOP-12041 > URL: https://issues.apache.org/jira/browse/HADOOP-12041 > Project: Hadoop Common > Issue Type: Sub-task > Reporter: Kai Zheng > Assignee: Kai Zheng > Attachments: HADOOP-12041-v1.patch, HADOOP-12041-v2.patch, HADOOP-12041-v3.patch, HADOOP-12041-v4.patch, HADOOP-12041-v5.patch, HADOOP-12041-v6.patch, HADOOP-12041-v7.patch > > > Currently existing Java RS coders based on {{GaloisField}} implementation have some drawbacks or limitations: > * The decoder computes not really erased units unnecessarily (HADOOP-11871); > * The decoder requires parity units + data units order for the inputs in the decode API (HADOOP-12040); > * Need to support or align with native erasure coders regarding concrete coding algorithms and matrix, so Java coders and native coders can be easily swapped in/out and transparent to HDFS (HADOOP-12010); > * It's unnecessarily flexible but incurs some overhead, as HDFS erasure coding is totally a byte based data system, we don't need to consider other symbol size instead of 256. > This desires to implement another RS coder in pure Java, in addition to the existing {{GaliosField}} from HDFS-RAID. The new Java RS coder will be favored and used by default to resolve the related issues. The old HDFS-RAID originated coder will still be there for comparing, and converting old data from HDFS-RAID systems. -- This message was sent by Atlassian JIRA (v6.3.4#6332)