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https://issues.apache.org/jira/browse/HADOOP-17748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated HADOOP-17748:
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Parent: HADOOP-19353 (was: HADOOP-18477)
> s3a listing IOStatistics to count #of entries returned per LIST call
> --------------------------------------------------------------------
>
> Key: HADOOP-17748
> URL: https://issues.apache.org/jira/browse/HADOOP-17748
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.3.1
> Reporter: Steve Loughran
> Priority: Minor
>
> Extend IOStatistics tracking for the S3A Listing operations to count the #of
> object entries returned in a LIST call. This would be interesting when
> working with versioned buckets, to see what the actual page size of a listing
> is, so understand how it behaves there, and maybe get some estimate of how
> many old versions/tombstones are being skipped.
> MUST: add to S3AFS stats, SHOULD add to Listing
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