BIND 10 #1622: Ensure multiple processes log to same file when files are being rolled

[BIND 10 Development]

#1622: Ensure multiple processes log to same file when files are being rolled
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            Reporter:  stephen  |                        Owner:
                Type:  defect   |                       Status:  new
            Priority:  minor    |                    Milestone:  New Tasks
           Component:  logging  |                     Keywords:
           Sensitive:  0        |              Defect Severity:  N/A
         Sub-Project:  DNS      |  Feature Depending on Ticket:
Estimated Difficulty:  0        |          Add Hours to Ticket:  0
         Total Hours:  0        |                    Internal?:  0
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 Type implementing a subclass of log4cplus::RollingFileAppender (and a lock
 file, both solutions suggested in #1518) to keep all processes logging to
 the same file when a log file is rolled.

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Ticket URL: <http://bind10.isc.org/ticket/1622>
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