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  1. Hadoop HDFS
  2. HDFS-4949 Centralized cache management in HDFS
  3. HDFS-5589

Namenode loops caching and uncaching when data should be uncached

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    Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 3.0.0-alpha1
    • Fix Version/s: 2.3.0
    • Component/s: caching, namenode
    • Labels:
      None
    • Target Version/s:

      Description

      This was reported by Chris Nauroth and Brandon Li, and Stephen Chu repro'd it too.

      If you add a new caching directive then remove it, the Namenode will sometimes get stuck in a loop where it sends DNA_CACHE and then DNA_UNCACHE repeatedly to the datanodes where the data was previously cached.

        Attachments

        1. hdfs-5589-1.patch
          10 kB
          Andrew Wang
        2. hdfs-5589-2.patch
          19 kB
          Andrew Wang

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            • Assignee:
              andrew.wang Andrew Wang
              Reporter:
              andrew.wang Andrew Wang

              Dates

              • Created:
                Updated:
                Resolved:

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