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https://issues.apache.org/jira/browse/HDFS-12251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16114832#comment-16114832
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Sean Busbey commented on HDFS-12251:
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Another thing missing from the docs as they are in v2:
from Steve L on HDFS-11644:
{quote}
I don't want an enum though, I'd like a string. Why? Let's us and
implementation classes add new methods without renegotiating the source tree.
For example, on S3a, I could add the new attributes "s3a:delayed-commit",
blobstore:put-on-close ( the latter being something which other blobstores
could also do), etc. Some convention that for store-specific options, we use a
prefix, so as to stop incompatibilities.
{quote}
The docs should call out that the options from store implementations should use
a prefix. Preferably also state a suggested place implementors should doc the
options they provide (based on whatever we do for documenting the stores in
HADOOP-14402)
> Add document for StreamCapabilities
> -----------------------------------
>
> Key: HDFS-12251
> URL: https://issues.apache.org/jira/browse/HDFS-12251
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 3.0.0-alpha4
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Fix For: 2.9.0, 3.0.0-beta1
>
> Attachments: HDFS-12251.00.patch, HDFS-12251.01.patch,
> HDFS-12251.02.patch
>
>
> Update filesystem docs to describe the purpose and usage of
> {{StreamCapabilities}}.
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