Here is the log file:
2013-02-22 15:04:43+1300 [-] Log opened.
2013-02-22 15:04:43+1300 [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:43+1300 [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:43+1300 [-] ControlSocket starting on '/var/run/caldavd.sock'
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Migrating locations and resources
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Upgrading to version 1
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Moving calendar homes to /Library/Server/Calendar and Contacts/Data/Documents/calendars/__uids__
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Processing 2 calendar homes in /Library/Server/Calendar and Contacts/Data/Documents/calendars/__uids__
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Done processing calendar homes
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Fetching delegate assignments and auto-schedule settings from directory
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] No resource info found in directory
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Upgraded to version 1
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Upgrading to version 2
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Regular collection hidden: /Library/Server/Calendar and Contacts/Data/Documents/calendars/__uids__/67/2B/672B3EF4-0341-4CA9-9751-41B1FD 1D36FA/inbox
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Regular collection hidden: /Library/Server/Calendar and Contacts/Data/Documents/calendars/__uids__/DC/12/DC124B82-F619-490A-AFB2-DDE6C0 570D05/inbox
2013-02-22 15:04:43+1300 [-] [twistedcaldav.upgrade#warn] Upgraded to version 2
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseSchemaService#warn] Beginning database schema check.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseSchemaService#warn] Required database key VERSION: 12.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseSchemaService#warn] Actual database key VERSION: 12.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseSchemaService#warn] Schema version check complete: no upgrade needed.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseSchemaService#warn] Database schema check complete.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseDataService#warn] Beginning database data check.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseDataService#warn] Required database key CALENDAR-DATAVERSION: 3.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseDataService#warn] Actual database key CALENDAR-DATAVERSION: 3.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseDataService#warn] Data version check complete: no upgrade needed.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.sql.upgrade.UpgradeDatabaseDataService#warn] Database data check complete.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.migrate.UpgradeToDatabaseService#warn] Beginning filesystem -> database upgrade.
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.migrate.UpgradeToDatabaseService#warn] Migrating calendar UID '672B3EF4-0341-4CA9-9751-41B1FD1D36FA'
2013-02-22 15:04:43+1300 [-] [txdav.common.datastore.upgrade.migrate.UpgradeToDatabaseService#warn] Starting migration transaction calendar UID '672B3EF4-0341-4CA9-9751-41B1FD1D36FA'
2013-02-22 15:04:44+1300 [PooledMemCacheProtocol,client] [txdav.caldav.datastore.sql.CalendarHome#warn] Splitting calendars for user 672B3EF4-0341-4CA9-9751-41B1FD1D36FA
2013-02-22 15:04:44+1300 [PooledMemCacheProtocol,client] [txdav.caldav.datastore.sql.CalendarHome#warn] Calendar: 'calendar', split into 1
2013-02-22 15:04:44+1300 [PooledMemCacheProtocol,client] [txdav.common.datastore.upgrade.migrate.UpgradeToDatabaseService#warn] Migrating calendar UID 'DC124B82-F619-490A-AFB2-DDE6C0570D05'
2013-02-22 15:04:44+1300 [PooledMemCacheProtocol,client] [txdav.common.datastore.upgrade.migrate.UpgradeToDatabaseService#warn] Starting migration transaction calendar UID 'DC124B82-F619-490A-AFB2-DDE6C0570D05'
2013-02-22 15:04:44+1300 [PooledMemCacheProtocol,client] [txdav.caldav.datastore.sql.CalendarHome#warn] Splitting calendars for user DC124B82-F619-490A-AFB2-DDE6C0570D05
2013-02-22 15:04:44+1300 [PooledMemCacheProtocol,client] [txdav.caldav.datastore.sql.CalendarHome#warn] Calendar: 'calendar', split into 1
2013-02-22 15:04:44+1300 [PooledMemCacheProtocol,client] [txdav.common.datastore.upgrade.migrate.UpgradeToDatabaseService#warn] Filesystem upgrade complete, launching database service.
2013-02-22 15:04:45+1300 [-] [twistedcaldav.database#error] Database Proxies has different schema (v.3 vs. v.4)
2013-02-22 15:04:45+1300 [-] LimitingInheritingProtocolFactory starting on 8008
2013-02-22 15:04:45+1300 [-] LimitingInheritingProtocolFactory starting on 8800
2013-02-22 15:04:45+1300 [-] LimitingInheritingProtocolFactory starting on 8443
2013-02-22 15:04:45+1300 [-] LimitingInheritingProtocolFactory starting on 8843
2013-02-22 15:04:45+1300 [-] LimitingInheritingProtocolFactory starting on 8008
2013-02-22 15:04:45+1300 [-] LimitingInheritingProtocolFactory starting on 8800
2013-02-22 15:04:45+1300 [-] LimitingInheritingProtocolFactory starting on 8443
2013-02-22 15:04:45+1300 [-] LimitingInheritingProtocolFactory starting on 8843
2013-02-22 15:04:45+1300 [-] Factory starting on 7654
2013-02-22 15:04:47+1300 [-] [notifications] 2013-02-22 15:04:47+1300 [-] Log opened.
2013-02-22 15:04:47+1300 [-] [notifications] 2013-02-22 15:04:47+1300 [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:47+1300 [-] [notifications] 2013-02-22 15:04:47+1300 [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:47+1300 [-] [notifications] 2013-02-22 15:04:47+1300 [-] AMPPushNotifierFactory starting on 62311
2013-02-22 15:04:47+1300 [-] [notifications] 2013-02-22 15:04:47+1300 [-] InternalNotificationFactory starting on 62309
2013-02-22 15:04:47+1300 [-] [notifications] 2013-02-22 15:04:47+1300 [-] set uid/gid 93/93
2013-02-22 15:04:47+1300 [-] [groupcacher] 2013-02-22 15:04:47+1300 [-] Log opened.
2013-02-22 15:04:47+1300 [-] [groupcacher] 2013-02-22 15:04:47+1300 [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:47+1300 [-] [groupcacher] 2013-02-22 15:04:47+1300 [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:47+1300 [-] [groupcacher] 2013-02-22 15:04:47+1300 [-] set uid/gid 93/93
2013-02-22 15:04:47+1300 [-] [groupcacher] 2013-02-22 15:04:47+1300 [-] [twistedcaldav.directory.directory.GroupMembershipCacherService#warn] Starting group membership cacher service
2013-02-22 15:04:48+1300 [-] [caldav-3] Reading configuration from file: /Library/Server/Calendar and Contacts/Config/caldavd.plist
2013-02-22 15:04:48+1300 [-] [caldav-3] [-] Log opened.
2013-02-22 15:04:48+1300 [-] [caldav-3] [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:48+1300 [-] [caldav-3] [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:48+1300 [-] [caldav-3] [-] set uid/gid 93/93
2013-02-22 15:04:48+1300 [-] [notifications] 2013-02-22 15:04:48+1300 [-] Starting factory <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x109966cf8>
2013-02-22 15:04:48+1300 [-] [notifications] 2013-02-22 15:04:48+1300 [-] Starting factory <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x109964a70>
2013-02-22 15:04:48+1300 [-] [caldav-7] Reading configuration from file: /Library/Server/Calendar and Contacts/Config/caldavd.plist
2013-02-22 15:04:48+1300 [-] [caldav-7] [-] Log opened.
2013-02-22 15:04:48+1300 [-] [caldav-7] [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:48+1300 [-] [caldav-7] [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:48+1300 [-] [caldav-7] [-] set uid/gid 93/93
2013-02-22 15:04:48+1300 [-] [caldav-2] Reading configuration from file: /Library/Server/Calendar and Contacts/Config/caldavd.plist
2013-02-22 15:04:48+1300 [-] [caldav-2] [-] Log opened.
2013-02-22 15:04:48+1300 [-] [caldav-2] [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:48+1300 [-] [caldav-2] [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:48+1300 [-] [caldav-2] [-] set uid/gid 93/93
2013-02-22 15:04:48+1300 [-] [caldav-6] Reading configuration from file: /Library/Server/Calendar and Contacts/Config/caldavd.plist
2013-02-22 15:04:48+1300 [-] [caldav-6] [-] Log opened.
2013-02-22 15:04:48+1300 [-] [caldav-6] [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:48+1300 [-] [caldav-6] [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:48+1300 [-] [caldav-6] [-] set uid/gid 93/93
2013-02-22 15:04:48+1300 [-] [caldav-0] Reading configuration from file: /Library/Server/Calendar and Contacts/Config/caldavd.plist
2013-02-22 15:04:48+1300 [-] [caldav-0] [-] Log opened.
2013-02-22 15:04:48+1300 [-] [caldav-0] [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:48+1300 [-] [caldav-0] [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:48+1300 [-] [caldav-0] [-] set uid/gid 93/93
2013-02-22 15:04:48+1300 [-] [caldav-5] Reading configuration from file: /Library/Server/Calendar and Contacts/Config/caldavd.plist
2013-02-22 15:04:48+1300 [-] [caldav-5] [-] Log opened.
2013-02-22 15:04:48+1300 [-] [caldav-5] [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:48+1300 [-] [caldav-5] [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:48+1300 [-] [caldav-5] [-] set uid/gid 93/93
2013-02-22 15:04:48+1300 [-] [caldav-1] Reading configuration from file: /Library/Server/Calendar and Contacts/Config/caldavd.plist
2013-02-22 15:04:48+1300 [-] [caldav-1] [-] Log opened.
2013-02-22 15:04:48+1300 [-] [caldav-1] [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:48+1300 [-] [caldav-1] [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:48+1300 [-] [caldav-1] [-] set uid/gid 93/93
2013-02-22 15:04:48+1300 [-] [caldav-4] Reading configuration from file: /Library/Server/Calendar and Contacts/Config/caldavd.plist
2013-02-22 15:04:48+1300 [-] [caldav-4] [-] Log opened.
2013-02-22 15:04:48+1300 [-] [caldav-4] [-] twistd 12.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.2) starting up.
2013-02-22 15:04:48+1300 [-] [caldav-4] [-] reactor class: twext.internet.kqreactor.KQueueReactor.
2013-02-22 15:04:48+1300 [-] [caldav-4] [-] set uid/gid 93/93
2013-02-22 15:45:44+1300 [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [caldav-6] [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [caldav-4] [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [caldav-7] [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [caldav-5] [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [caldav-2] [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [caldav-3] [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] (TCP Port 8843 Closed)
2013-02-22 15:45:44+1300 [-] (TCP Port 8443 Closed)
2013-02-22 15:45:44+1300 [-] (TCP Port 8800 Closed)
2013-02-22 15:45:44+1300 [-] (TCP Port 8008 Closed)
2013-02-22 15:45:44+1300 [-] (TCP Port 8843 Closed)
2013-02-22 15:45:44+1300 [-] (TCP Port 8443 Closed)
2013-02-22 15:45:44+1300 [-] (TCP Port 8800 Closed)
2013-02-22 15:45:44+1300 [-] (TCP Port 8008 Closed)
2013-02-22 15:45:44+1300 [-] (UNIX Port '/var/run/caldavd.sock' Closed)
2013-02-22 15:45:44+1300 [-] [caldav-6] [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [caldav-6] [-] Server Shut Down.
2013-02-22 15:45:44+1300 [-] [caldav-4] [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [caldav-4] [-] Server Shut Down.
2013-02-22 15:45:44+1300 [-] [caldav-2] [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [caldav-2] [-] Server Shut Down.
2013-02-22 15:45:44+1300 [-] [caldav-3] [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [caldav-3] [-] Server Shut Down.
2013-02-22 15:45:44+1300 [-] [caldav-0] [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [caldav-0] [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [caldav-0] [-] Server Shut Down.
2013-02-22 15:45:44+1300 [-] [caldav-1] [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [caldav-1] [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [caldav-1] [-] Server Shut Down.
2013-02-22 15:45:44+1300 [-] [notifications] 2013-02-22 15:45:44+1300 [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [notifications] 2013-02-22 15:45:44+1300 [-] (TCP Port 62309 Closed)
2013-02-22 15:45:44+1300 [-] [notifications] 2013-02-22 15:45:44+1300 [-] (TCP Port 62311 Closed)
2013-02-22 15:45:44+1300 [-] [notifications] 2013-02-22 15:45:44+1300 [APNProviderProtocol (TLSMemoryBIOProtocol),client] Stopping factory <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x109966cf8>
2013-02-22 15:45:44+1300 [-] [notifications] 2013-02-22 15:45:44+1300 [APNProviderProtocol (TLSMemoryBIOProtocol),client] Stopping factory <twext.internet.adaptendpoint.LegacyClientFactoryWrapper instance at 0x109964a70>
2013-02-22 15:45:44+1300 [-] [caldav-5] [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [caldav-5] [-] Server Shut Down.
2013-02-22 15:45:44+1300 [-] [groupcacher] 2013-02-22 15:45:44+1300 [-] Received SIGTERM, shutting down.
2013-02-22 15:45:44+1300 [-] [groupcacher] 2013-02-22 15:45:44+1300 [-] [twistedcaldav.directory.directory.GroupMembershipCacherService#warn] Stopping group membership cacher service
2013-02-22 15:45:44+1300 [-] [caldav-7] [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [caldav-7] [-] Server Shut Down.
2013-02-22 15:45:44+1300 [-] [notifications] 2013-02-22 15:45:44+1300 [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [notifications] 2013-02-22 15:45:44+1300 [-] Server Shut Down.
2013-02-22 15:45:44+1300 [-] [groupcacher] 2013-02-22 15:45:44+1300 [-] Main loop terminated.
2013-02-22 15:45:44+1300 [-] [groupcacher] 2013-02-22 15:45:44+1300 [-] Server Shut Down.
2013-02-22 15:45:45+1300 [twisted.internet.protocol.Factory] (TCP Port 7654 Closed)
2013-02-22 15:45:45+1300 [-] Main loop terminated.
2013-02-22 15:45:45+1300 [-] Server Shut Down.