Steve Loughran created HADOOP-17748:
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Summary: 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
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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