BIND 10 #859: Search cache for lowest reachable delegation

[BIND 10 Development]

#859: Search cache for lowest reachable delegation
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                   Reporter:         |                 Owner:  vorner
  vorner                             |                Status:  reviewing
                       Type:         |             Milestone:
  defect                             |  Sprint-20110503
                   Priority:  major  |            Resolution:
                  Component:         |             Sensitive:  0
  Unclassified                       |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  0.0
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Changes (by zhanglikun):

 * owner:  zhanglikun => vorner


Comment:

 >Unluckily, I can't test it in reality, administrator of my network blocks
 port 53 except his own nameserver. So, if someone could have a look if
 this works and if it solves #833? (It should, in theory, I counted that we
 could have quadratic number of queries in the number of delegations
 before).

 I have tested, it works as you expected.

 Good job, please go ahead to merge.

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Ticket URL: <http://bind10.isc.org/ticket/859#comment:5>
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