BIND 10 #1834: ZONEMGR_REFRESH_ZONE happening too often

[BIND 10 Development]

#1834: ZONEMGR_REFRESH_ZONE  happening too often
-------------------------------------+-------------------------------------
            Reporter:  jreed         |                        Owner:
                Type:  defect        |                       Status:  new
            Priority:  medium        |                    Milestone:  New
           Component:  secondary     |  Tasks
  manager                            |                     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
-------------------------------------+-------------------------------------
 Maybe this is related to #1786.

 In about 30 hours, ZONEMGR_REFRESH_ZONE  happened 3570 times.

 {{{

 2012-03-21 14:21:15.q DEBUG [b10-zonemgr.zonemgr] ZONEMGR_REFRESH_ZONE
 refreshing zone bind10.isc.org. (class IN)
 2012-03-21 14:21:15.q DEBUG [b10-xfrin.datasrc] DATASRC_SQLITE_NEWCONN
 SQLite3Database is being initialized
 2012-03-21 14:21:15.q DEBUG [b10-xfrin.datasrc] DATASRC_SQLITE_CONNOPEN
 Opening sqlite database file '/var/bind10-devel/zone.sqlite3'
 2012-03-21 14:21:15.q INFO  [b10-xfrout.xfrout] XFROUT_NOTIFY_COMMAND
 received command to send notifies for bind10.isc.org./IN
 2012-03-21 14:21:15.q ERROR [b10-zonemgr.zonemgr]
 ZONEMGR_NO_MASTER_ADDRESS internal BIND 10 command did not contain address
 of master
 2012-03-21 14:21:15.q DEBUG [b10-xfrin.datasrc] DATASRC_SQLITE_DROPCONN
 SQLite3Database is being deinitialized
 2012-03-21 14:21:15.q DEBUG [b10-xfrin.datasrc] DATASRC_SQLITE_CONNCLOSE
 Closing sqlite database

 ...

 2012-03-22 20:18:03.q DEBUG [b10-auth.datasrc] DATASRC_QUERY_NO_ZONE no
 zone containing 'n10.isc.org.' in class 'IN'
 2012-03-22 20:18:03.q DEBUG [b10-auth.datasrc] DATASRC_QUERY_NO_ZONE no
 zone containing 'ord.sns-pb.isc.org.' in class 'IN'
 2012-03-22 20:18:03.q DEBUG [b10-auth.datasrc] DATASRC_QUERY_NO_ZONE no
 zone containing 'sfba.sns-pb.isc.org.' in class 'IN'
 2012-03-22 20:18:21.q DEBUG [b10-zonemgr.zonemgr] ZONEMGR_REFRESH_ZONE
 refreshing zone bind10.isc.org. (class IN)
 2012-03-22 20:18:21.q DEBUG [b10-xfrin.datasrc] DATASRC_SQLITE_NEWCONN
 SQLite3Database is being initialized
 2012-03-22 20:18:21.q DEBUG [b10-xfrin.datasrc] DATASRC_SQLITE_CONNOPEN
 Opening sqlite database file '/var/bind10-devel/zone.sqlite3'
 2012-03-22 20:18:21.q INFO  [b10-xfrout.xfrout] XFROUT_NOTIFY_COMMAND
 received command to send notifies for bind10.isc.org./IN

 }}}

 From looking at logs this appeared to happen every 30 seconds.

 The sqlite3 database contains:

 {{{

 1|2252|bind10.isc.org.|org.isc.bind10.|3600|RRSIG|SOA|SOA 5 3 3600
 20120418233243 20120319233243 8724 bind10.isc.org.
 DhkI8A9ynENZKiSvqP7PkmgoHZFuIpmBiiRtYIp8gTOxVXvTxlnTH7BAiREr8m9y+0Yu1V8aGBEAegvztQPgLVq9XeoTDtmC/Xjl3KpNnPXApebkgUwl4s+G1DLyQPDDYpdtzF+KG9QQ69aprkgNGxlprghWcjT5VCIZJYkE2ec=

 ...

 31|2252|bind10.isc.org.|org.isc.bind10.|3600|SOA||ns-int.isc.org.
 hostmaster.isc.org. 2012032000 7200 3600 604800 3600

 }}}

 Any ideas why the refresh happens so frequently?

 (If I am overlooking something, then maybe the fix is simply to improve
 the documentation.)

-- 
Ticket URL: <http://bind10.isc.org/ticket/1834>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development