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https://issues.apache.org/jira/browse/HDFS-12251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16114708#comment-16114708
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Lei (Eddy) Xu commented on HDFS-12251:
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Hey, [~busbey]
bq. StreamCapabilities.StreamCapability isn't public
I feel that it should be public. Will file a new JIRA for it.
bq. Do all outputstreams returned from FileSystem implement StreamCapabilities?
I think they are going to support it, as WIP in HADOOP-14402.
bq. Am I correctly deducing from these docs changes that there isn't an ability
query about append.
You are right. {{append}} is not in {{StreamCapabilities}}, as it is a
FileSystem call.
> 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
> 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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