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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13578) Add Codec for ZStandard Compression
Date Wed, 14 Dec 2016 21:40:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15749570#comment-15749570

Jason Lowe commented on HADOOP-13578:

One more thing I just thought of -- if we end up having to loop around and call endStream
more than once, is it OK that we called ZSTD_compressStream between the two calls to ZSTD_endStream?
 The call will be degenerate with input size == 0, but I'm wondering if that's OK from the
zstd lib API perspective.

Actually I think we're OK here since ZSTD_endStream will do a similar degenerate ZSTD_compressStream
call internally if it isn't in the final compression stage, and it looks like ZSTD_compressStream
explicitly does nothing if the compressor is in the final stage.  So I think we're good, but
it'd be great if you could double-check.

> Add Codec for ZStandard Compression
> -----------------------------------
>                 Key: HADOOP-13578
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13578
>             Project: Hadoop Common
>          Issue Type: New Feature
>            Reporter: churro morales
>            Assignee: churro morales
>         Attachments: HADOOP-13578.patch, HADOOP-13578.v1.patch, HADOOP-13578.v2.patch,
HADOOP-13578.v3.patch, HADOOP-13578.v4.patch, HADOOP-13578.v5.patch, HADOOP-13578.v6.patch,
HADOOP-13578.v7.patch, HADOOP-13578.v8.patch
> ZStandard: https://github.com/facebook/zstd has been used in production for 6 months
by facebook now.  v1.0 was recently released.  Create a codec for this library.  

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