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  1. Hadoop HDFS
  2. HDFS-7285 Erasure Coding Support inside HDFS
  3. HDFS-8563

Erasure Coding: fsck handles file smaller than a full stripe

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: HDFS-7285
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Uploaded a small file. Fsck shows it's UNRECOVERABLE. It's not correct.

      Erasure Coded Block Groups:
       Total size:    1366 B
       Total files:   1
       Total block groups (validated):        1 (avg. block group size 1366 B)
        ********************************
        UNRECOVERABLE BLOCK GROUPS:   1 (100.0 %)
        MIN REQUIRED EC BLOCK:        6
        ********************************
       Minimally erasure-coded block groups:  0 (0.0 %)
       Over-erasure-coded block groups:       0 (0.0 %)
       Under-erasure-coded block groups:      1 (100.0 %)
       Unsatisfactory placement block groups:         0 (0.0 %)
       Default schema:        RS-6-3
       Average block group size:      4.0
       Missing block groups:          0
       Corrupt block groups:          0
       Missing ec-blocks:             5 (55.555557 %)
      

        Attachments

        1. HDFS-8563-HDFS-7285.01.patch
          9 kB
          Walter Su
        2. HDFS-8563-HDFS-7285.02.patch
          10 kB
          Walter Su

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              • Assignee:
                walter.k.su Walter Su
                Reporter:
                walter.k.su Walter Su
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                Dates

                • Created:
                  Updated:
                  Resolved: