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  1. Hadoop Common
  2. HADOOP-764

The memory consumption of processReport() in the namenode can be reduced

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.10.0
    • Component/s: None
    • Labels:
      None

      Description

      The FSNamesystem.processReport() method converts the blocklist for a datanode into an array by calling node.getBlocks(). Although this memory allocation is transient, it could possibly require the garbage-collector to work that much harder.

      The method Block.getBlocks() should be deprecated. Code that currently uses this method should instead iterate over the Collection.

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            • Assignee:
              dhruba dhruba borthakur
              Reporter:
              dhruba dhruba borthakur
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              • Created:
                Updated:
                Resolved: