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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12982) Document missing S3A and S3 properties
Date Thu, 31 Mar 2016 14:34:25 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15219939#comment-15219939
] 

Steve Loughran commented on HADOOP-12982:
-----------------------------------------

good to see these things being documented

# revert the replacements of ## with ---, # with = . # and ## are valid. If you want to change
depth, add or remove # count.
# maybe mention that if you have multipartition size == block size, you *may* get better IO
performance
# please use lower case, s3a:// and s3n:// for referring to filesystems
# s3:// is going/gone out of trunk. Don't mention it at all



{code}
<description>Specify a server-side encryption algorithm for S3A.
  The default is NULL, and the only other currently allowable value is AES256.
</description>
{code}

Not "NULl"; that encourages people to set the value to NULL. Better to say "unset by default,
the only allowed value is AES256"


> Document missing S3A and S3 properties
> --------------------------------------
>
>                 Key: HADOOP-12982
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12982
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: documentation, fs/s3, tools
>    Affects Versions: 2.8.0
>            Reporter: Wei-Chiu Chuang
>            Assignee: Wei-Chiu Chuang
>            Priority: Minor
>         Attachments: HADOOP-12982.001.patch
>
>
> * S3: 
> ** {{fs.s3.buffer.dir}}, {{fs.s3.maxRetries}}, {{fs.s3.sleepTimeSeconds}}, {{fs.s3.block.size}}
 not in the documentation
> ** Note that {{fs.s3.buffer.dir}}, {{fs.s3.maxRetries}}, {{fs.s3.sleepTimeSeconds}} are
also used by S3N.
> * S3A:
> ** {{fs.s3a.server-side-encryption-algorithm}} and {{fs.s3a.block.size}} are missing
in core-default.xml and the documentation.



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