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  1. Hadoop HDFS
  2. HDFS-333

A State Machine for name-node blocks.

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
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    Description

      Blocks on the name-node can belong to different collections like the blocksMap, under-replicated, over-replicated lists, etc.
      It is getting more and more complicated to keep the lists consistent.
      It would be good to formalize the movement of the blocks between the collections using a state machine.

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          incorporates

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-5015 Separate block/replica management code from FSNamesystem

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

          Bug - A problem which impairs or prevents the functions of the product. HDFS-37 An invalidated block should be removed from the blockMap

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

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-275 FSNamesystem should have an InvalidateBlockMap class to manage blocks scheduled to remove

          • Major - Major loss of function.
          • Open

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              Unassigned Unassigned
              shv Konstantin Shvachko
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              Dates

                Created:
                Updated: