BIND 10 #2609: SERVFAIL on all queries while b10-loadzone is running

[BIND 10 Development]

#2609: SERVFAIL on all queries while b10-loadzone is running
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                   Reporter:         |                 Owner:
  vorner                             |                Status:  new
                       Type:         |             Milestone:  New Tasks
  defect                             |              Keywords:
                   Priority:         |             Sensitive:  0
  medium                             |           Sub-Project:  DNS
                  Component:         |  Estimated Difficulty:  0
  Unclassified                       |           Total Hours:  0
               CVSS Scoring:         |
            Defect Severity:  N/A    |
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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 Configure a large zone in SQLite (without the in-memory cache). When it is
 queried, it answers the query. But when b10-loadzone is run to update the
 zone,
 auth returns SERVFAIL to all queries, because the database is locked

 {{{
 2013-01-07 13:05:55.158 ERROR [b10-auth.auth/19124] AUTH_PROCESS_FAIL
 message processing failure: Unexpected failure in sqlite3_step: database
 is locked
 }}}

 Updating a zone shouldn't cause a disruption (with the cz. zone, it takes
 like
 5 minutes to load the new zone to the DB, which is not good).

 I know this may not be fixable due to SQLite limitations. But we should
 probably at least warn about loading too large zones there.

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Ticket URL: <https://bind10.isc.org/ticket/2609>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development