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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9345) Erasure Coding: create dummy coder and schema
Date Fri, 01 Sep 2017 00:38:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Andrew Wang updated HDFS-9345:
    Issue Type: Improvement  (was: Sub-task)
        Parent:     (was: HDFS-8031)

> Erasure Coding: create dummy coder and schema
> ---------------------------------------------
>                 Key: HDFS-9345
>                 URL: https://issues.apache.org/jira/browse/HDFS-9345
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Rui Li
>            Assignee: SammiChen
>              Labels: hdfs-ec-3.0-nice-to-have
> We  can create dummy coder which does no computation and simply returns zero bytes. Similarly,
we can create a test-only schema with no parity blocks.
> Such coder and schema can be used to isolate the performance issue to HDFS-side logic
instead of codec, which would be useful when tuning performance of EC.

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