Issue

Named aborts with an error...

namedb files are identical across 3 systems.

Abort message in syslog:
Jun 16 18:51:28 boxen1 abrt[27559]: Saved core dump of pid 14996 (/usr/sbin/named) to /var/spool/abrt/ccpp-2014-06-16-18:51:19-14996 (896667648 bytes)
Jun 16 18:51:28 boxen1 abrtd: Directory 'ccpp-2014-06-16-18:51:19-14996' creation detected
Jun 16 18:51:28 boxen1 abrtd: Size of '/var/spool/abrt' >= 1000 MB, deleting 'ccpp-2014-06-13-22:51:28-11315'
Jun 16 18:51:28 boxen1 abrt[27559]: /var/spool/abrt is 1925488067 bytes (more than 1279MiB), deleting 'ccpp-2014-06-13-22:51:28-11315'
Jun 16 18:51:28 boxen1 abrt[27559]: Lock file '/var/spool/abrt/ccpp-2014-06-13-22:51:28-11315/.lock' is locked by process 1760
Jun 16 18:51:28 boxen1 abrt[27559]: '/var/spool/abrt/ccpp-2014-06-13-22:51:28-11315' does not exist
Jun 16 18:51:35 boxen1 abrtd: Sending an email...
Jun 16 18:51:36 boxen1 abrtd: Email was sent to: root@localhost

And this error as well:
16-Jun-2014 18:51:18.648 general: info: loading configuration from '/etc/named.conf'
16-Jun-2014 18:51:18.826 general: error: zone boxendomain.com/IN/external: refresh: could not set file modification time of 'slave/boxendomain.com.': permission denied
16-Jun-2014 18:51:19.418 general: critical: server.c:4493: fatal error:
16-Jun-2014 18:51:19.418 general: critical: RUNTIME_CHECK(result == 0) failed
16-Jun-2014 18:51:19.418 general: critical: exiting (due to fatal error in library)