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Posted to hdfs-issues@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2017/09/01 00:38:00 UTC
[jira] [Updated] (HDFS-9345) Erasure Coding: create dummy coder and
schema
[ 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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