BIND 10 #2663: b10-xfrin creates empty zone when first download fails

[BIND 10 Development]

#2663: b10-xfrin creates empty zone when first download fails
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                   Reporter:  vorner  |                 Owner:
                       Type:  defect  |                Status:  new
                   Priority:  medium  |             Milestone:  New Tasks
                  Component:  xfrin   |              Keywords:
               CVSS Scoring:          |             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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 When you:
  1) Let b10-xfrin download a new zone (that doesn't exist yet in the
 database)
  2) Make the transfer fail (tried with validation, but I suspect broken
 transfer or TSIG will do the same effect)

 The database will now contain a zone with no records in it. The zone is
 created outside of the transaction. When the transfer fails, the
 transaction that filled in some records is rolled back, but the zone
 stays. This probably also means the empty zone is present for the whole
 time when the zone is being downloaded (even when the download is then
 successful), which is a smaller problem than leaving it there forever, but
 it still doesn't sound exactly right.

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Ticket URL: <http://bind10.isc.org/ticket/2663>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development