BIND 10 #2445: suppress initial log

[BIND 10 Development]

#2445: suppress initial log
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                   Reporter:         |                 Owner:
  jinmei                             |                Status:  new
                       Type:         |             Milestone:  Next-Sprint-
  defect                             |  Proposed
                   Priority:         |            Resolution:
  medium                             |             Sensitive:  0
                  Component:  Boss   |           Sub-Project:  Core
  of BIND                            |  Estimated Difficulty:  0
                   Keywords:         |           Total Hours:  0
            Defect Severity:  N/A    |
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 Replying to [comment:2 vorner]:

 > > This may be a duplicate of #1898.
 >
 > I think it is.

 In some sense, yes (and I actually didn't check pre-existing one in
 this case).  But my intent of opening this ticket is that based on the
 observation that we won't have time to have a clean fix to this we
 should provide some workaround solution by the beta release.

 > Anyway, if we only want to suppress it (and not put anywhere at startup,
 for
 > which we'll need to do the ring buffer for messages, as we discussed),
 it could
 > be just a simple change of default severity. The output goes to stderr,
 because
 > we didn't read the configuration yet and we don't know where else to
 log.

 Currently it dumps INFO level logs, which are still noisy at least to
 me.  But increasing the default level to something higher than INFO do
 not seem to be a good idea to me either.

 I guess some of these initial INFO logs should actually be categorized
 as DEBUG, but that's probably a subject of a different ticket.

 Considering these, my suggestion for this ticket is:
 - introduce a way to specify the "destination" of initial logs.  it
   can be specified via a command line option of bind10
 - set the default destination to a file, something like
   ${prefix}/var/bind10-devel/bind10-init.log
 - on the startup of bind10, it only produces a few lines of messages
   saying (in addition to some "hello") where the initial logs go.

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Ticket URL: <http://bind10.isc.org/ticket/2445#comment:3>
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