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https://issues.apache.org/jira/browse/HADOOP-13421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16155261#comment-16155261
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Steve Loughran commented on HADOOP-13421:
-----------------------------------------
{code}
fs.s3a.use.list.v1
{code}
better
{code}
fs.s3a.list.version="1"
{code}
line us up for a v3 algorithm in some time in the future. This will propagate
into the s3a FS code too.
* Can just call the class {{ListRequest}}, or, if you really want an s3 prefix.
One thing to consider: what if someone who only has the v1 API wants to run the
tests? I know Thomas and Ewan are happy, but don't know about others. Maybe: if
the version API is explicitly set to v1 for a bucket then skip the V2 tests?
Looking at the code though, I think that's a moot issue. If someone forces the
list API to v1 in their settings, that will be implicitly picked yp by
everything except the v1 test, which just becomes a duplicate of the superclass
in terms of test coverage...its not going to fail.
> Switch to v2 of the S3 List Objects API in S3A
> ----------------------------------------------
>
> Key: HADOOP-13421
> URL: https://issues.apache.org/jira/browse/HADOOP-13421
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.8.0
> Reporter: Steven K. Wong
> Assignee: Aaron Fabbri
> Priority: Minor
> Attachments: HADOOP-13421.002.patch,
> HADOOP-13421-HADOOP-13345.001.patch
>
>
> Unlike [version
> 1|http://docs.aws.amazon.com/AmazonS3/latest/API/RESTBucketGET.html] of the
> S3 List Objects API, [version
> 2|http://docs.aws.amazon.com/AmazonS3/latest/API/v2-RESTBucketGET.html] by
> default does not fetch object owner information, which S3A doesn't need
> anyway. By switching to v2, there will be less data to transfer/process.
> Also, it should be more robust when listing a versioned bucket with "a large
> number of delete markers" ([according to
> AWS|https://aws.amazon.com/releasenotes/Java/0735652458007581]).
> Methods in S3AFileSystem that use this API include:
> * getFileStatus(Path)
> * innerDelete(Path, boolean)
> * innerListStatus(Path)
> * innerRename(Path, Path)
> Requires AWS SDK 1.10.75 or later.
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