Details

    • Type: New Feature
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.90.4
    • Component/s: io, regionserver, util
    • Labels:
    • Hadoop Flags:
      Reviewed
    • Release Note:
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      Implementation of a Pretty Printer for HLogs. Can be accessed with the Java API or with a command line interface, which replaces HLog --dump functionality. Can output to a human-readable pretty format, or to a JSON list for easy parsing in diagnostic scripts. Can also filter by region, row, and/or sequence id. See command line usage (HLog --dump -h) and the javadocs for more detail on these features.
      Show
      Implementation of a Pretty Printer for HLogs. Can be accessed with the Java API or with a command line interface, which replaces HLog --dump functionality. Can output to a human-readable pretty format, or to a JSON list for easy parsing in diagnostic scripts. Can also filter by region, row, and/or sequence id. See command line usage (HLog --dump -h) and the javadocs for more detail on these features.

      Description

      We currently have a rudimentary way to print HLog data, but it is limited and currently prints key-only information. We need extend this functionality, similar to how we developed HFile's pretty printer. Ideas for functionality:

      • filter by sequence_id
      • filter by row / region
      • option to print values in addition to key info
      • option to print output in JSON format (so scripts can easily parse for analysis)

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              • Assignee:
                riley Riley Patterson
                Reporter:
                nspiegelberg Nicolas Spiegelberg
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                Dates

                • Created:
                  Updated:
                  Resolved: