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https://issues.apache.org/jira/browse/HDFS-8198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16269434#comment-16269434
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Daniel Pol commented on HDFS-8198:
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[~eddyxu] Key work being "should". checknative shows ISA-L is loaded but I
don't see any performance difference between running with rs_native vs rs_java.
So I'm wondering if it's really using the coder I specify. Even with DEBUG log
level, the map output for Teragen shows both rs_native and rs_java is loaded,
but no clear way to know which one is used. Even with the
io.erasurecode.codec.rs.rawcoders set to one of these coders only, I still see
the same debug message. Was wondering if there's some output with DEBUG or INFO
log level that would give me a hint which coder is using. Would be even better
if there was a DEBUG message that shows exactly which coder is used for EC
encoding.
> Erasure Coding: system test of TeraSort
> ---------------------------------------
>
> Key: HDFS-8198
> URL: https://issues.apache.org/jira/browse/HDFS-8198
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-7285
> Reporter: Kai Sasaki
> Attachments: ec.out, replication.out
>
>
> Functional system test of TeraSort on EC files.
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