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  1. MariaDB ColumnStore
  2. MCOL-1300

cpimport splitter may raise a CONN_FAILURE alarm at end of job

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Minor
    • Resolution: Won't Do
    • 1.1.3
    • Icebox
    • cpimport
    • None

    Description

      There is a possibility that on a large multi-PM system, the cpimport.bin job, when finished, closes the socket to the splitter while the splitter is still trying to read. Or it may just send a 0 length message. Either will raise a CONN_FAILURE critical alarm and leave it up forever.

      Nothing is logged in this case, which also needs to be corrected. If the alarm is raised due to a socket closing, an exception is raised, but no log is made, just the alarm. Exceptions should be logged.

      So this bug consists of two components:
      1. Anything that raises an alarm should log as much informations as possible. (For this bug, just the CONN_FAILURE alarm)
      2. Fix the communication between splitter and PM such that a socket isn't closed prematurely.

      This is a difficult bug to reproduce. Since it has no operational impact, it is marked as minor.

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            Unassigned Unassigned
            David.Hall David Hall (Inactive)
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            Dates

              Created:
              Updated:
              Resolved:

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