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https://issues.apache.org/jira/browse/HDFS-10910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15528702#comment-15528702
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SammiChen commented on HDFS-10910:
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It's great to add currently supported erasure coding policies in the doc. I
would suggest,
1. Since default cell size is mentioned, it's better to add the default cell
size number in the doc.
2. Default schema is "RS_6_3_SCHEMA".
3. A policy has a schema and the stripping cell size. It seems schema name is
used as the policy name when we talk about currently supported policies.
> HDFS Erasure Coding doc should state its currently supported erasure coding
> policies
> ------------------------------------------------------------------------------------
>
> Key: HDFS-10910
> URL: https://issues.apache.org/jira/browse/HDFS-10910
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: documentation, erasure-coding
> Affects Versions: 3.0.0-alpha1
> Reporter: Wei-Chiu Chuang
> Assignee: Yiqun Lin
> Attachments: HDFS-10910.001.patch
>
>
> While HDFS Erasure Coding doc states a variety of possible combinations of
> algorithms, block group size and cell size, the code (as of 3.0.0-alpha1)
> allows only three policies: RS_6_3_SCHEMA, RS_3_2_SCHEMA and
> RS_6_3_LEGACY_SCHEMA. All with default cell size. I think this should be
> documented.
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