[jira] [Commented] (HADOOP-14000) s3guard metadata stores to support millons of children

["lqjacklee (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-14000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16711130#comment-16711130 ] 

lqjacklee commented on HADOOP-14000:
------------------------------------

[~stevel@apache.org] I want change the method declaration for the return value to : 


{code:java}
class DirListingMetadataHolder {

    private RemoteIterator<DDBPathMetadata> iterator;

    private Path path;

    private boolean isAuthoritative;
}
{code}

Does the change will due to the block issue ? 

> s3guard metadata stores to support millons of children
> ------------------------------------------------------
>
>                 Key: HADOOP-14000
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14000
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 3.0.0-beta1
>            Reporter: Steve Loughran
>            Priority: Major
>
> S3 repos can have millions of child entries
> Currently {{DirListingMetaData}} can't and {{MetadataStore.listChildren(Path path)}} won't be able to handle directories that big, for listing, deleting or naming.
> We will need a paged response from the listing operation, something which can be iterated over.



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