Hello!

Impala service has not worked since enabling Kerberos on the CM.
I've tried and changed configuration a lot but It didn't still work.

I've changed Kerberos Encryption Types to
des3-hmac-sha1
arcfour-hmac
des-hmac-sha1
des-cbc-md5
des-cbc-crc

/etc/krb5.conf

[logging]
 default = FILE:/var/log/krb5libs.log
 kdc = FILE:/var/log/krb5kdc.log
 admin_server = FILE:/var/log/kadmind.log
[libdefaults]
 dns_lookup_realm = false
 ticket_lifetime = 1d
 renew_lifetime = 7d
 forwardable = true
 renewable = true
 rdns = false
 default_realm = ISAAC.COM
 default_ccache_name = KEYRING:persistent:%{uid}
 max_renewable_life = 90d
[realms]
 ISAAC.COM = {
 kdc = kdc.isaac.com:88
 admin_server = kdc.isaac.com:749
 default_domain = isaac.com
 }
[domain_realm]
 .isaac.com = ISAAC.COM
 isaac.com = ISAAC.COM

/var/kerberos/krb5kdc/kdc.conf

[kdcdefaults]
 kdc_ports = 88
 kdc_tcp_ports = 88
[realms]
 ISAAC.COM = {
 #master_key_type = aes256-cts
 max_renewable_life = 7d 0h 0m 0s
 acl_file = /var/kerberos/krb5kdc/kadm5.acl
 dict_file = /usr/share/dict/words
 admin_keytab = /var/kerberos/krb5kdc/kadm5.keytab
 supported_enctypes = aes256-cts:normal aes128-cts:normal des3-hmac-sha1:normal arcfour-hmac:normal camellia256-cts:normal camellia128-cts:normal des-hmac-sha1:normal des-cbc-md5:normal des-cbc-crc:normal
 default_principal_flags = +renewable
 }

/var/kerberos/krb5kdc/kadm5.acl

*/admin@ISAAC.COM *

That is my ERROR

11:45:45.987 AM INFO cc:362 
Logged in from keytab as impala/dn.isaac.com@ISAAC.COM (short username impala)
11:45:45.988 AM INFO cc:858 
Kerberos ticket granted to impala/dn.isaac.com@ISAAC.COM
11:45:45.988 AM INFO cc:731 
Using external kerberos principal "impala/dn.isaac.com@ISAAC.COM"
11:45:45.988 AM INFO cc:1091 
External communication is authenticated with Kerberos
11:45:45.988 AM INFO cc:234 
catalogd version 3.0.0-cdh6.0.1 RELEASE (build 9a74a5053de5f7b8dd983802e6d75e58d31472db)
Built on Wed Sep 19 11:27:37 PDT 2018
11:45:45.988 AM INFO cc:235 
Using hostname: dn.isaac.com
11:45:45.989 AM INFO cc:156 
Flags (see also /varz are on debug webserver):
--catalog_service_port=26000
--initial_hms_cnxn_timeout_s=120
...........
11:45:48.510 AM INFO java:188 
Found configuration file file:/run/cloudera-scm-agent/process/394-impala-CATALOGSERVER/hive-conf/hive-site.xml
11:45:49.295 AM INFO java:459 
Trying to connect to metastore with URI thrift://mn.isaac.com:9083
11:45:49.996 AM INFO java:533 
Opened a connection to metastore, current connections: 1
11:45:49.997 AM INFO java:586 
Connected to metastore.
11:45:50.121 AM INFO java:459 
Trying to connect to metastore with URI thrift://mn.isaac.com:9083
11:45:50.154 AM INFO java:533 
............
11:45:50.368 AM INFO java:459 
Trying to connect to metastore with URI thrift://mn.isaac.com:9083
11:45:50.383 AM INFO java:533 
Opened a connection to metastore, current connections: 10
11:45:50.383 AM INFO java:586 
Connected to metastore.
11:45:51.240 AM INFO java:1102 
Invalidating all metadata. Version: 0
11:45:51.390 AM INFO java:914 
Loading native functions for database: default
11:45:51.391 AM INFO java:930 
Loaded native functions for database: default
11:45:51.391 AM INFO java:941 
Loading Java functions for database: default
11:45:51.391 AM INFO java:952 
Loaded Java functions for database: default
11:45:51.420 AM INFO java:1170 
Invalidated all metadata.
11:45:51.427 AM INFO cc:190 
Starting statestore subscriber
11:45:51.428 AM INFO cc:452 
ThriftServer 'StatestoreSubscriber' started on port: 23020
11:45:51.428 AM INFO cc:217 
Registering with statestore
11:45:51.434 AM INFO cc:78 
Couldn't open transport for dn.isaac.com:24000 (No more data to read.)
11:45:51.434 AM INFO cc:94 
Unable to connect to dn.isaac.com:24000

# vi /var/log/catalogd/catalogd.dn.isaac.com.impala.log.ERROR.20181206-115245.4361

F1206 11:53:18.085758 4361 catalogd-main.cc:88] Couldn't open transport for dn.isaac.com:24000 (No more data to read.)
. Impalad exiting.
*** Check failure stack trace: ***
 @ 0x22ce71d
 @ 0x22cffc2
 @ 0x22ce0f7
 @ 0x22d16be
 @ 0x9b47e8
 @ 0x96aa07
 @ 0x7f5e346f0c05
 @ 0x9b3411
Picked up JAVA_TOOL_OPTIONS: -Xmx8g
Wrote minidump to /var/log/impala-minidumps/catalogd/99579f34-ce2b-49d7-30c5bc88-c9d7478c.dmp

anyone have any solution?