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From "Wei-Chiu Chuang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-12981) Remove/deprecate s3native properties from S3NativeFileSystemConfigKeys and core-default.xml
Date Wed, 30 Mar 2016 20:39:25 GMT
Wei-Chiu Chuang created HADOOP-12981:
----------------------------------------

             Summary: Remove/deprecate s3native properties from S3NativeFileSystemConfigKeys
and core-default.xml
                 Key: HADOOP-12981
                 URL: https://issues.apache.org/jira/browse/HADOOP-12981
             Project: Hadoop Common
          Issue Type: Improvement
          Components: tools
    Affects Versions: 3.0.0
            Reporter: Wei-Chiu Chuang
            Priority: Minor


It seems all properties defined in {{S3NativeFileSystemConfigKeys}} are not used. Additionally,
core-default.xml has the description of these unused properties:
{noformat}
<!-- s3native File System -->

<property>
  <name>s3native.stream-buffer-size</name>
  <value>4096</value>
  <description>The size of buffer to stream files.
  The size of this buffer should probably be a multiple of hardware
  page size (4096 on Intel x86), and it determines how much data is
  buffered during read and write operations.</description>
</property>

<property>
  <name>s3native.bytes-per-checksum</name>
  <value>512</value>
  <description>The number of bytes per checksum.  Must not be larger than
  s3native.stream-buffer-size</description>
</property>

<property>
  <name>s3native.client-write-packet-size</name>
  <value>65536</value>
  <description>Packet size for clients to write</description>
</property>

<property>
  <name>s3native.blocksize</name>
  <value>67108864</value>
  <description>Block size</description>
</property>

<property>
  <name>s3native.replication</name>
  <value>3</value>
  <description>Replication factor</description>
</property>
{noformat}
I think they should be removed (or deprecated) to avoid confusion if these properties are
defunct.



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