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  1. Sub-task HDFS-9086
    Rename dfs.datanode.stripedread.threshold.millis to dfs.datanode.stripedread.timeout.millis
  2. Sub-task HDFS-7937
    Erasure Coding: INodeFile quota computation unit tests
  3. Sub-task HDFS-8408
    Revisit and refactor ErasureCodingInfo
  4. Sub-task HDFS-8382
    Remove chunkSize and initialize from erasure coder
  5. Sub-task HDFS-8378
    Erasure Coding: Few improvements for the erasure coding worker
  6. Sub-task HDFS-8336
    Expose some administrative erasure coding operations to HdfsAdmin
  7. Sub-task HDFS-7614
    Implement COMPLETE state of erasure coding block groups
  8. Sub-task HDFS-7678
    Erasure coding: DFSInputStream with decode functionality (pread)
  9. Sub-task HDFS-7652
    Process block reports for erasure coded blocks
  10. Sub-task HDFS-7653
    Block Readers and Writers used in both client side and datanode side
  11. Sub-task HDFS-7369
    Erasure coding: distribute recovery work for striped blocks to DataNode
  12. Sub-task HDFS-7354
    Optimized handling of parity blocks in block management
  13. Sub-task HDFS-7348
    Erasure Coding: DataNode reconstruct striped blocks
  14. Sub-task HDFS-7347
    Configurable erasure coding policy for individual files and directories
  15. Sub-task HDFS-7349
    Support DFS command for the EC encoding
  16. Sub-task HDFS-7344
    [umbrella] Erasure Coding worker and support in DataNode
  17. Sub-task HDFS-7339
    Representing striped block groups in NameNode with hierarchical naming protocol
  18. Sub-task HDFS-7782
    Erasure coding: pread from files in striped layout
  19. Sub-task HDFS-7839
    Erasure coding: implement facilities in NameNode to create and manage EC zones
  20. Sub-task HDFS-7853
    Erasure coding: extend LocatedBlocks to support reading from striped files
  21. Sub-task HDFS-9097
    Erasure coding: update EC command "-s" flag to "-p" when specifying policy
  22. Sub-task HDFS-9091
    Erasure Coding: Provide DistributedFilesystem API to getAllErasureCodingPolicies
  23. Sub-task HDFS-9088
    Cleanup erasure coding documentation
  24. Sub-task HDFS-8833
    Erasure coding: store EC schema and cell size in INodeFile and eliminate notion of EC zones
  25. Sub-task HDFS-9040
    Erasure coding: Refactor DFSStripedOutputStream (Move Namenode RPC Requests to Coordinator)
  26. Sub-task HDFS-8899
    Erasure Coding: use threadpool for EC recovery tasks on DataNode
  27. Sub-task HDFS-8796
    Erasure coding: merge HDFS-8499 to EC branch and refactor BlockInfoStriped
  28. Sub-task HDFS-8769
    Erasure Coding: unit test for SequentialBlockGroupIdGenerator
  29. Sub-task HDFS-8768
    Erasure Coding: block group ID displayed in WebUI is not consistent with fsck
  30. Sub-task HDFS-8787
    Erasure coding: rename BlockInfoContiguousUC and BlockInfoStripedUC to be consistent with trunk
  31. Sub-task HDFS-8909
    Erasure coding: update BlockInfoContiguousUC and BlockInfoStripedUC to use BlockUnderConstructionFeature
  32. Sub-task HDFS-8937
    Erasure coding: do not throw exception when setting replication factor on EC files
  33. Sub-task HDFS-8936
    Simplify Erasure Coding Zone DiskSpace quota exceeded exception error message
  34. Sub-task HDFS-8183
    Erasure Coding: Improve DFSStripedOutputStream closing of datastreamer threads
  35. Sub-task HDFS-8066
    Erasure coding: Decommission handle for EC blocks.
  36. Sub-task HDFS-8064
    Erasure coding: DataNode support for block recovery of striped block groups
  37. Sub-task HDFS-8125
    Erasure Coding: Expose refreshECSchemas command to reload predefined schemas
  38. Sub-task HDFS-8123
    Erasure Coding: Better to move EC related proto messages to a separate erasurecoding proto file
  39. Sub-task HDFS-8220
    Erasure Coding: StripedDataStreamer fails to handle the blocklocations which doesn't satisfy BlockGroupSize
  40. Sub-task HDFS-8098
    Erasure coding: fix bug in TestFSImage
  41. Sub-task HDFS-8203
    Erasure Coding: Seek and other Ops in DFSStripedInputStream.
  42. Sub-task HDFS-8202
    Improve end to end striping file test to add erasure recovering test
  43. Sub-task HDFS-8195
    Erasure coding: Fix file quota change when we complete/commit the striped blocks
  44. Sub-task HDFS-8087
    Erasure Coding: Add more EC zone management APIs (get/list EC zone(s))
  45. Sub-task HDFS-8090
    Erasure Coding: Add RPC to client-namenode to list all ECSchemas loaded in Namenode.
  46. Sub-task HDFS-8058
    Erasure coding: use BlockInfo[] for both striped and contiguous blocks in INodeFile
  47. Sub-task HDFS-8059
    Erasure coding: revisit how to store EC schema and cellSize in NameNode
  48. Sub-task HDFS-7969
    Erasure coding: NameNode support for lease recovery of striped block groups
  49. Sub-task HDFS-7949
    WebImageViewer need support file size calculation with striped blocks
  50. Sub-task HDFS-9172
    Erasure Coding: Move DFSStripedIO stream related classes to hadoop-hdfs-client
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