[Freeipa-users] "FreeIPA" server ipa-dnskeysyncd.service failed

Named service is generating core dumps under /var/named and ipa-dnskeysyncd.service is failing. Jan 27 14:31:39 freeipa-03.prod.mcs.som.mob.nuance.com systemd[1]: ipa-dnskeysyncd.service failed. Jan 27 14:32:09 freeipa-03.prod.mcs.som.mob.nuance.com systemd[1]: Stopped IPA key daemon. Jan 27 14:32:09 freeipa-03.prod.mcs.som.mob.nuance.com systemd[1]: Started IPA key daemon. Jan 27 14:32:12 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: ipa-dnskeysyncd: INFO LDAP bind... Jan 27 14:32:12 freeipa-03.prod.mcs.som.mob.nuance.com python2[16632]: GSSAPI client step 1 Jan 27 14:32:12 freeipa-03.prod.mcs.som.mob.nuance.com python2[16632]: GSSAPI client step 1 Jan 27 14:32:12 freeipa-03.prod.mcs.som.mob.nuance.com python2[16632]: GSSAPI client step 1 Jan 27 14:32:12 freeipa-03.prod.mcs.som.mob.nuance.com python2[16632]: GSSAPI client step 2 Jan 27 14:32:12 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: ipa-dnskeysyncd: INFO Commencing sync process Jan 27 14:32:12 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: ipaserver.dnssec.keysyncer: INFO Initial LDAP dump is done, sychronizing with ODS and BIND Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com python2[16650]: GSSAPI client step 1 Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com python2[16650]: GSSAPI client step 1 Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com python2[16650]: GSSAPI client step 1 Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: Traceback (most recent call last): Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: File "/usr/libexec/ipa/ipa-dnskeysyncd", line 116, in <module> Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: while ldap_connection.syncrepl_poll(all=1, msgid=ldap_search): Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: File "/usr/lib64/python2.7/site-packages/ldap/syncrepl.py", line 405, in syncrepl_poll Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: self.syncrepl_refreshdone() Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: File "/usr/lib/python2.7/site-packages/ipaserver/dnssec/keysyncer.py", line 126, in syncrepl_refreshdone Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: self.hsm_replica_sync() Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: File "/usr/lib/python2.7/site-packages/ipaserver/dnssec/keysyncer.py", line 192, in hsm_replica_sync Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: ipautil.run([paths.IPA_DNSKEYSYNCD_REPLICA]) Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: File "/usr/lib/python2.7/site-packages/ipapython/ipautil.py", line 562, in run Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: raise CalledProcessError(p.returncode, arg_string, str(output)) Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com ipa-dnskeysyncd[16632]: subprocess.CalledProcessError: Command '/usr/libexec/ipa/ipa-dnskeysync-replica' returned non-zero exit status 1 Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com systemd[1]: ipa-dnskeysyncd.service: main process exited, code=exited, status=1/FAILURE Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com systemd[1]: Unit ipa-dnskeysyncd.service entered failed state. Jan 27 14:32:15 freeipa-03.prod.mcs.som.mob.nuance.com systemd[1]: ipa-dnskeysyncd.service failed. I am not able find the cause, any pointers to troubleshoot and fix?