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  1. Hadoop Common
  2. HADOOP-13204 Über-jira: S3a phase III: scale and tuning
  3. HADOOP-13950

S3A create(path, overwrite=true) need only check for path being a dir, not a file

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    • Sub-task
    • Status: Resolved
    • Minor
    • Resolution: Duplicate
    • 2.7.3
    • None
    • fs/s3
    • None

    Description

      When you create a file with overwrite=true, you don't care that a path resolves to a file, only that there isn't a directory at the destination.

      S3A can use this, bypass the GET path and only do a GET path + "/" and LIST path. That way: one HTTPS request saved, and no negative caching of the path to confuse followup checks.

      That is: better performance and consistency

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          duplicates

          Sub-task - The sub-task of the issue HADOOP-13884 s3a create(overwrite=true) to only look for dir/ and list entries, not file

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          is depended upon by

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-11487 FileNotFound on distcp to s3n/s3a due to creation inconsistency

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              stevel@apache.org Steve Loughran
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              Dates

                Created:
                Updated:
                Resolved: