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  1. Sub-task HDFS-14450
    Erasure Coding: decommissioning datanodes cause replicate a large number of duplicate EC internal blocks
  2. Sub-task HDFS-14353
    Erasure Coding: metrics xmitsInProgress become to negative.
  3. Sub-task HDFS-14344
    Erasure Coding: Miss EC block after decommission and restart NN
  4. Sub-task HDFS-12413
    Inotify should support erasure coding policy op as replica meta change
  5. Sub-task HDFS-11697
    Add javadoc for storage policy and erasure coding policy
  6. Sub-task HDFS-11552
    Erasure Coding: Support Parity Blocks placement onto same nodes hosting Data Blocks when DataNodes are insufficient
  7. Sub-task HDFS-11541
    Call RawErasureEncoder and RawErasureDecoder release() methods
  8. Sub-task HDFS-11467
    Support ErasureCoding section in OIV XML/ReverseXML
  9. Sub-task HDFS-11314
    Enforce set of enabled EC policies on the NameNode
  10. Sub-task HDFS-11172
    Support an erasure coding policy using RS 10 + 4
  11. Sub-task HDFS-11124
    Report blockIds of internal blocks for EC files in Fsck
  12. Sub-task HDFS-11121
    Add assertions to BlockInfo#addStorage to protect from breaking reportedBlock-blockGroup mapping
  13. Sub-task HDFS-11113
    Document dfs.client.read.striped configuration in hdfs-default.xml
  14. Sub-task HDFS-11082
    Provide replicated EC policy to replicate files
  15. Sub-task HDFS-11072
    Add ability to unset and change directory EC policy
  16. Sub-task HDFS-11066
    Improve test coverage for ISA-L native coder
  17. Sub-task HDFS-11013
    Correct typos in native erasure coding dump code
  18. Sub-task HDFS-10999
    Introduce separate stats for Replicated and Erasure Coded Blocks apart from the current Aggregated stats
  19. Sub-task HDFS-10996
    Ability to specify per-file EC policy at create time
  20. Sub-task HDFS-10994
    Support an XOR policy XOR-2-1-64k in HDFS
  21. Sub-task HDFS-10983
    OIV tool should make an EC file explicit
  22. Sub-task HDFS-10976
    Report erasure coding policy of EC files in Fsck
  23. Sub-task HDFS-10975
    fsck -list-corruptfileblocks does not report corrupt EC files
  24. Sub-task HDFS-10971
    Distcp should not copy replication factor if source file is erasure coded
  25. Sub-task HDFS-10968
    BlockManager#isInNewRack should consider decommissioning nodes
  26. Sub-task HDFS-10916
    Switch from "raw" to "system" xattr namespace for erasure coding policy
  27. Sub-task HDFS-10858
    FBR processing may generate incorrect reportedBlock-blockGroup mapping
  28. Sub-task HDFS-10827
    When there are unrecoverable ec block groups, Namenode Web UI shows "There are X missing blocks." but doesn't show the block names.
  29. Sub-task HDFS-10826
    Correctly report missing EC blocks in FSCK
  30. Sub-task HDFS-10786
    Erasure Coding: Add removeErasureCodingPolicy API
  31. Sub-task HDFS-10565
    Erasure Coding: Document about the current allowed storage policies for EC Striped mode files
  32. Sub-task HDFS-10531
    Add EC policy and storage policy related usage summarization function to dfs du command
  33. Sub-task HDFS-10530
    BlockManager reconstruction work scheduling should correctly adhere to EC block placement policy
  34. Sub-task HDFS-10473
    Allow only suitable storage policies to be set on striped files
  35. Sub-task HDFS-10460
    Erasure Coding: Recompute block checksum for a particular range less than file size on the fly by reconstructing missed block
  36. Sub-task HDFS-10434
    Fix intermittent test failure of TestDataNodeErasureCodingMetrics
  37. Sub-task HDFS-10293
    StripedFileTestUtil#readAll flaky
  38. Sub-task HDFS-10258
    Erasure Coding: support small cluster whose #DataNode < # (Blocks in a BlockGroup)
  39. Sub-task HDFS-9918
    Erasure Coding: Sort located striped blocks based on decommissioned states
  40. Sub-task HDFS-9876
    shouldProcessOverReplicated should not count number of pending replicas
  41. Sub-task HDFS-9867
    Missing block exception should carry locatedBlocks information
  42. Sub-task HDFS-9866
    BlockManager#chooseExcessReplicasStriped may weaken rack fault tolerance
  43. Sub-task HDFS-9837
    BlockManager#countNodes should be able to detect duplicated internal blocks
  44. Sub-task HDFS-9833
    Erasure coding: recomputing block checksum on the fly by reconstructing the missed/corrupt block data
  45. Sub-task HDFS-9832
    Erasure Coding: Improve exception handling in ErasureCodingWorker#ReconstructAndTransferBlock
  46. Sub-task HDFS-9829
    Erasure Coding: Improve few exception handling logic of ErasureCodingWorker
  47. Sub-task HDFS-9826
    Erasure Coding: Postpone the recovery work for a configurable time period
  48. Sub-task HDFS-9822
    Erasure Coding: Avoids scheduling multiple reconstruction tasks for a striped block at the same time
  49. Sub-task HDFS-9818
    Correctly handle EC reconstruction work caused by not enough racks
  50. Sub-task HDFS-9816
    Erasure Coding: allow to use multiple EC policies in striping related tests [Part 3]
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