Can somebody please help ?    kinit: Failed to store credentials: Internal credentials cache error (filename: /hue_krb5_ccache) while getting initial credentials   [09/Dec/2018 21:06:24 -0800] kt_renewer   INFO     Reinitting kerberos retry attempt 2 from keytab /bin/kinit -k -t /run/cloudera-scm-agent/process/450-hue-KT_RENEWER/hue.keytab -c /hue_krb5_ccache hue/kabo1.unraveldatalab.com@unravel.COM [09/Dec/2018 21:06:24 -0800] kt_renewer   ERROR     Couldn't reinit from keytab! `kinit' exited with 1.   kinit: Failed to store credentials: Internal credentials cache error (filename: /hue_krb5_ccache) while getting initial credentials   [09/Dec/2018 21:06:24 -0800] kt_renewer   ERROR     FATAL: max_retries of 3 reached. Exiting... [09/Dec/2018 21:06:28 ] settings     INFO     Welcome to Hue 3.9.0 [09/Dec/2018 21:06:31 -0800] __init__     INFO     Couldn't import snappy. Support for snappy compression disabled. [09/Dec/2018 21:06:31 -0800] kt_renewer   INFO     Reinitting kerberos retry attempt 0 from keytab /bin/kinit -k -t /run/cloudera-scm-agent/process/450-hue-KT_RENEWER/hue.keytab -c /hue_krb5_ccache hue/kabo1.unraveldatalab.com@unravel.COM [09/Dec/2018 21:06:31 -0800] kt_renewer   ERROR     Couldn't reinit from keytab! `kinit' exited with 1.   kinit: Failed to store credentials: Internal credentials cache error (filename: /hue_krb5_ccache) while getting initial credentials   [09/Dec/2018 21:06:34 -0800] kt_renewer   INFO     Reinitting kerberos retry attempt 1 from keytab /bin/kinit -k -t /run/cloudera-scm-agent/process/450-hue-KT_RENEWER/hue.keytab -c /hue_krb5_ccache hue/kabo1.unraveldatalab.com@unravel.COM [09/Dec/2018 21:06:34 -0800] kt_renewer   ERROR     Couldn't reinit from keytab! `kinit' exited with 1.   kinit: Failed to store credentials: Internal credentials cache error (filename: /hue_krb5_ccache) while getting initial credentials   [09/Dec/2018 21:06:37 -0800] kt_renewer   INFO     Reinitting kerberos retry attempt 2 from keytab /bin/kinit -k -t /run/cloudera-scm-agent/process/450-hue-KT_RENEWER/hue.keytab -c /hue_krb5_ccache hue/kabo1.unraveldatalab.com@unravel.COM [09/Dec/2018 21:06:37 -0800] kt_renewer   ERROR     Couldn't reinit from keytab! `kinit' exited with 1.   kinit: Failed to store credentials: Internal credentials cache error (filename: /hue_krb5_ccache) while getting initial credentials   [09/Dec/2018 21:06:37 -0800] kt_renewer   ERROR     FATAL: max_retries of 3 reached. Exiting... \         [root@kabo1 ~]# cat /etc/krb5.conf [libdefaults] default_realm = unravel.COM dns_lookup_kdc = false dns_lookup_realm = false ticket_lifetime = 24h renew_lifetime = 7d forwardable = true default_tkt_enctypes = aes256-cts-hmac-sha1-96 default_tgs_enctypes = aes256-cts-hmac-sha1-96 permitted_enctypes = aes256-cts-hmac-sha1-96 allow_weak_crypto = true udp_preference_limit = 1 kdc_timeout = 3000 [realms] unravel.COM = { kdc = kabo1.unraveldatalab.com admin_server = kabo1.unraveldatalab.com } [domain_realm] [root@kabo1 ~]# cat   /var/kerberos/krb5kdc/kdc.conf [kdcdefaults] kdc_ports = 88 kdc_tcp_ports = 88   [realms] EXAMPLE.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 }       ... View more

i'am using cloudera manager5.10 on ubuntu 14.04 i want to reduce the memory size of hdfs and kafka , any help please ? ... View more

Hi, Can help you  http://www.cloudera.com/content/support/en/downloads/cloudera_manager/cm-5-1-0.html  Cloudera Manager Installation Guide.pdf - check uninstall guide   you need to record the paths which you install the CDH ... View more