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https://issues.apache.org/jira/browse/HDFS-13713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16603655#comment-16603655
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Íñigo Goiri commented on HDFS-13713:
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bq. Maybe, but would pointing to the S3 implementation preempt the
possibilities of having a wasb and/or adl implementation?
Ideally we would extend the documentation once we get the new implementations
but I see the risk there.
It might be safer to just point to the FileSystem one and add the others later.
bq. There is no example yet of a use since this is a primitive that will be
used by forthcoming work (HDFS-12090). But it has wide applicability (e.g.
DistCP) so it was submitted to trunk and not on the HDFS-12090 branch.
I think it would be valuable to have some example and I think DistCP would be
the perfect target for this.
Can we open a JIRA for that?
> Add specification of Multipart Upload API to FS specification, with contract
> tests
> ----------------------------------------------------------------------------------
>
> Key: HDFS-13713
> URL: https://issues.apache.org/jira/browse/HDFS-13713
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: fs, test
> Affects Versions: 3.2.0
> Reporter: Steve Loughran
> Assignee: Ewan Higgs
> Priority: Blocker
> Attachments: HDFS-13713.001.patch, HDFS-13713.002.patch,
> multipartuploader.md
>
>
> There's nothing in the FS spec covering the new API. Add it in a new .md file
> * add FS model with the notion of a function mapping (uploadID -> Upload),
> the operations (list, commit, abort). The [TLA+
> mode|https://issues.apache.org/jira/secure/attachment/12865161/objectstore.pdf]l
> of HADOOP-13786 shows how to do this.
> * Contract tests of not just the successful path, but all the invalid ones.
> * implementations of the contract tests of all FSs which support the new API.
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