SSSD Service cannot read keytab file.

Hello,

SSSD is failing to read keytab file, and whenever I tries to login remotely I keep getting unable to verify Principal name in logs file. I am able to verify principal name from keytab file using kinit command.

OS : RHEL 6.5
SSSD Version : sssd-1.9.2-129.el6_5.4.x86_64

here is the output of kinit

root@TESTSERVER1 db]# klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM

Valid starting Expires Service principal
08/28/14 16:08:34 08/29/14 02:08:34 krbtgt/TEST.DOMAIN.COM@TEST.DOMAIN.COM
renew until 09/04/14 16:08:34
[root@TESTSERVER1 sssd]# klist -k
Keytab name: FILE:/etc/krb5.keytab
KVNO Principal

3 host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM
3 host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM
3 host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM
3 host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM
3 host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM
[root@TESTSERVER1 sssd]#

Log entries from /var/log/sssd/ldap_child.log

(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [main] (0x0400): ldap_child started.
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [unpack_buffer] (0x1000): total buffer size: 86
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [unpack_buffer] (0x1000): realm_str size: 17
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [unpack_buffer] (0x1000): got realm_str: TEST.DOMAIN.COM
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [unpack_buffer] (0x1000): princ_str size: 53
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [unpack_buffer] (0x1000): got princ_str: host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [unpack_buffer] (0x1000): keytab_name size: 0
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [unpack_buffer] (0x1000): lifetime: 86400
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [ldap_child_get_tgt_sync] (0x0100): Principal name is: [host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM]
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [ldap_child_get_tgt_sync] (0x0100): Using keytab [default]
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [sss_krb5_verify_keytab_ex] (0x0010): Cannot read keytab [default].
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [ldap_child_get_tgt_sync] (0x0040): Unable to verify principal is present in the keytab
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [main] (0x0020): ldap_child_get_tgt_sync failed.
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [prepare_response] (0x0400): Building response for result [-1765328200]
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [pack_buffer] (0x1000): result [14] krberr [-1765328200] msgsize [26] msg [Error writing to key table]
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[740]]]] [main] (0x0400): ldap_child completed successfully
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[741]]]] [main] (0x0400): ldap_child started.
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[741]]]] [unpack_buffer] (0x1000): total buffer size: 86
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[741]]]] [unpack_buffer] (0x1000): realm_str size: 17
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[741]]]] [unpack_buffer] (0x1000): got realm_str: TEST.DOMAIN.COM
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[741]]]] [unpack_buffer] (0x1000): princ_str size: 53
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[741]]]] [unpack_buffer] (0x1000): got princ_str: host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[741]]]] [unpack_buffer] (0x1000): keytab_name size: 0
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[741]]]] [unpack_buffer] (0x1000): lifetime: 86400
(Fri Aug 29 09:08:20 2014) [[sssd[ldap_child[741]]]] [ldap_child_get_tgt_sync] (0x0100): Principal name is: [host/TESTSERVER1.test.domain.com@TEST.DOMAIN.COM]
(Fri Aug 29 09:08:21 2014) [[sssd[ldap_child[741]]]] [ldap_child_get_tgt_sync] (0x0100): Using keytab [default]
(Fri Aug 29 09:08:21 2014) [[sssd[ldap_child[741]]]] [sss_krb5_verify_keytab_ex] (0x0010): Cannot read keytab [default].
(Fri Aug 29 09:08:21 2014) [[sssd[ldap_child[741]]]] [ldap_child_get_tgt_sync] (0x0040): Unable to verify principal is present in
the keytab
(Fri Aug 29 09:08:21 2014) [[sssd[ldap_child[741]]]] [main] (0x0020): ldap_child_get_tgt_sync failed.
(Fri Aug 29 09:08:21 2014) [[sssd[ldap_child[741]]]] [prepare_response] (0x0400): Building response for result [-1765328200]
(Fri Aug 29 09:08:21 2014) [[sssd[ldap_child[741]]]] [pack_buffer] (0x1000): result [14] krberr [-1765328200] msgsize [26] msg [E
rror writing to key table]
(Fri Aug 29 09:08:21 2014) [[sssd[ldap_child[741]]]] [main] (0x0400): ldap_child completed successfully