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  1. Hadoop Common
  2. HADOOP-15619 Über-JIRA: S3Guard Phase IV: Hadoop 3.3 features
  3. HADOOP-16490

Avoid/handle cached 404s during S3A file creation

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.3.0
    • 3.3.0
    • fs/s3
    • None

    Description

      If S3Guard is encountering delayed consistency (FNFE from tombstone; failure to open file) then

      • it only retries with the same times as everything else. We should make it differently configurable
      • when an FNFE is finally thrown, rename() treats it as being caused by the original source path missing, when in fact its something else. Proposed: somehow propagate the failure up differently, probably in the S3AFileSystem.copyFile() code
      • don't do HEAD checks when creating files
      • shell commands to avoid deleteOnExit calls as these also generate HEAD calls by way of exists() checks

      eliminating the HEAD checks will stop 404s getting into the S3 load balancer/cache during file creation

      Attachments

        Issue Links

          blocks

          Sub-task - The sub-task of the issue HADOOP-14936 S3Guard: remove "experimental" from documentation

          • Major - Major loss of function.
          • Resolved
          causes

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-16885 Encryption zone file copy failure leaks temp file ._COPYING_ and wrapped stream

          • Major - Major loss of function.
          • Resolved
          contains

          Sub-task - The sub-task of the issue HADOOP-16280 S3Guard: Retry failed read with backoff in Authoritative mode when file can be opened

          • Major - Major loss of function.
          • Resolved

          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

          Sub-task - The sub-task of the issue HADOOP-16501 s3guard auth path checks only check against unqualified source path

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

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-17216 delta.io spark task commit encountering S3 cached 404/FileNotFoundException

          • Major - Major loss of function.
          • Resolved
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-17216 delta.io spark task commit encountering S3 cached 404/FileNotFoundException

          • Major - Major loss of function.
          • Resolved
          relates to

          Sub-task - The sub-task of the issue HADOOP-16499 S3A retry policy to be exponential

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved
          supercedes

          Sub-task - The sub-task of the issue HADOOP-15460 S3A FS to add "fs.s3a.create.performance" to the builder file creation option set

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link GitHub Pull Request #1229

          Web Link GitHub Pull Request #1407

          Activity

            People

              stevel@apache.org Steve Loughran
              stevel@apache.org Steve Loughran
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              Dates

                Created:
                Updated:
                Resolved: