hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Wei-Chiu Chuang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11798) Native raw erasure coder in XOR codes
Date Mon, 17 Oct 2016 12:21:58 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15582089#comment-15582089

Wei-Chiu Chuang commented on HADOOP-11798:

In addition to HDFSErasureCoding.md you should also add the configuration key/value/description
to core-default.xml.

You may also consider adding the same information for io.erasurecode.codec.rs-default.rawcoder
and io.erasurecode.codec.rs-legacy.rawcoder

> Native raw erasure coder in XOR codes
> -------------------------------------
>                 Key: HADOOP-11798
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11798
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: io
>            Reporter: Kai Zheng
>            Assignee: SammiChen
>              Labels: hdfs-ec-3.0-must-do
>             Fix For: HDFS-7285
>         Attachments: HADOOP-11798-v1.patch, HADOOP-11798-v2.patch, HADOOP-11798-v3.patch,
> Raw XOR coder is utilized in Reed-Solomon erasure coder in an optimization to recover
only one erased block which is in most often case. It can also be used in HitchHiker coder.
Therefore a native implementation of it would be deserved for performance gain.

This message was sent by Atlassian JIRA

To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-issues-help@hadoop.apache.org

View raw message