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  1. Tajo (Retired)
  2. TAJO-1136

Implement queryable virtual table for query history

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Details

    • New Feature
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
    • TajoMaster
    • None

    Description

      Currently, Tajo does not provide queryable query history. We can see the history form WEB UI or bin/tajo command.

      I propose that we should implement a virtual table where each row a running/finished/failed query and columns are query id, start time, finish time, query status, in/out bytes and other counts and statistic information.

      If we provide queryable feature for query history, we don't need to implement additional code to discovery queries. Especially, it would be very useful for following cases:

      • users can get some statistic information for their usages
      • Query optimizer can exploit statistic information

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        Issue Links

          relates to

          New Feature - A new feature of the product, which has yet to be developed. TAJO-1026 Implement Query history persistency manager.

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. TAJO-1176 Implements queryable virtual tables for catalog information

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Resolved

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              Unassigned Unassigned
              hyunsik Hyunsik Choi
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              Dates

                Created:
                Updated: