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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8019) Erasure Coding: erasure coding chunk buffer allocation and management
Date Fri, 22 May 2015 21:07:17 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhe Zhang updated HDFS-8019:
----------------------------
    Parent Issue: HDFS-8031  (was: HDFS-7285)

> Erasure Coding: erasure coding chunk buffer allocation and management
> ---------------------------------------------------------------------
>
>                 Key: HDFS-8019
>                 URL: https://issues.apache.org/jira/browse/HDFS-8019
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Kai Zheng
>            Assignee: Vinayakumar B
>         Attachments: HDFS-8019-HDFS-7285-01.patch, HDFS-8019-HDFS-7285-02.patch
>
>
> As a task of HDFS-7344, this is to come up a chunk buffer pool allocating and managing
coding chunk buffers, either based on on-heap or off-heap. Note this assumes some DataNodes
are powerful in computing and performing EC coding work, so better to have this dedicated
buffer pool and management.



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