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  1. Accumulo
  2. ACCUMULO-2266

TServer should ensure wal settings are valid for underlying FS

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 1.5.0
    • Fix Version/s: 1.5.1, 1.6.0
    • Component/s: tserver
    • Labels:
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      Description

      ACCUMULO-2264 revealed a problem in how the tserver handles conflicts between its settings and the restrictions of the underlying fs.

      In the case of ACCUMULO-2264, if the tserver is configured with a wal block size less than that allowed by HDFS the tserver sits in an infinite loop.

      The tserver should probably be checking for the minimum blocksize (the property is dfs.namenode.fs-limits.min-block-size) and then either issuing a WARN/ERROR to the client and using the minimum or failing loudly and refusing to start. I favor the latter.

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              • Assignee:
                vines John Vines
                Reporter:
                busbey Sean Busbey
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                • Created:
                  Updated:
                  Resolved: