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  1. HBase
  2. HBASE-21320

[canary] Cleanup of usage and add commentary

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    • Reviewed
    • Cleans up usage and docs around Canary. Does not change command-line args (though we should -- smile).

    Description

      I was trying to us the Canary as a diagnosis tool figuring what was online and what was off but I couldn't make sense of how to use it. There was a bug where we default to regionserver 'mode' always and only way to change it was via a system property and a cryptic class name.

      Changed it so we don't specify output ahead of figuring what 'mode' we are to run in. Cleaned-up usage and added commentary. It seems useable now (Did not change command-line args though they need changing).

      Attachments

        1. HBASE-21320.branch-2.1.001.patch
          49 kB
          Michael Stack
        2. HBASE-21320.branch-2.1.002.patch
          68 kB
          Michael Stack
        3. HBASE-21320.branch-2.1.003.patch
          64 kB
          Michael Stack
        4. HBASE-21320.branch-2.1.004.patch
          64 kB
          Michael Stack

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