BIND 10 #2900: Investigate and fix mixed and missing log messages

[BIND 10 Development]

#2900: Investigate and fix mixed and missing log messages
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            Reporter:  muks          |                        Owner:
                Type:  defect        |                       Status:  new
            Priority:  medium        |                    Milestone:  Next-
           Component:  logging       |  Sprint-Proposed
            Keywords:                |                   Resolution:
           Sensitive:  0             |                 CVSS Scoring:
         Sub-Project:  DNS           |              Defect Severity:  N/A
Estimated Difficulty:  10            |  Feature Depending on Ticket:
         Total Hours:  0             |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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Comment (by jinmei):

 I suggest trying to reproduce the issue in a simpler scenario, like
 writing a simple multi-process Python program dumping logs and running
 it multiple times.  We know this happens on macmini.lab.isc.org, so
 if we are lucky we should be able to reproduce it on that machine.

 And I propose we won't spend too much time for this phase: if we can
 reproduce it and can easily identify and fix the cause, do it; if we
 can reproduce it but can't easily identify and/or fix the cause, stop
 at that point and defer it to a separate ticket; if we can't even
 easily reproduce it, stop at that point and keep this ticket open.

 This shouldn't be that big as a 10-point task, so I suggest
 re-estimating it.  Then we can at least make some progress without
 worry about too much space from the available points.

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Ticket URL: <http://bind10.isc.org/ticket/2900#comment:5>
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