@Geoffrey Shelton Okot Please find the link for new thread https://community.hortonworks.com/questions/246319/failed-to-connect-to-kdc-failed-to-communicate-wit.html Please guide me on this its really critical for me. ... View more

Hi @Robert Levas I have confirmed the SSL path password type and even I did set. kerberos.operation.verify.kdc.trust = false but still I am receiving an error like Failed to connect to KDC - Failed to communicate with the Active Directory at ldaps://hostip:636: hostip:636 Update the KDC settings in krb5-conf and kerberos-env configurations to correct this issue. Please guide me on this Regards, Manjunath P N ... View more

Hi @Hamid Zorgani, Thanks a lot for the detailed information. It's really helpful. I have couple of doubts could you please clarify, 1. Do we need to execute all steps in Ambari server? especially from step 1 to 10? 2. I have OpenLDAP installed already in my in cluster, even are also all steps mandatory? Please let me know if you need any more information. Regards, Manjunath P N ... View more

Traceback (most recent call last): File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/hdfs_client.py", line 73, in <module> HdfsClient().execute() File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 367, in execute method(env) File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/hdfs_client.py", line 35, in install import params File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/params.py", line 25, in <module> from params_linux import * File "/var/lib/ambari-agent/cache/common-services/HDFS/2.1.0.2.0/package/scripts/params_linux.py", line 343, in <module> dn_principal_name = dn_principal_name.replace('_HOST',hostname.lower()) File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/config_dictionary.py", line 73, in __getattr__ raise Fail("Configuration parameter '" + self.name + "' was not found in configurations dictionary!") resource_management.core.exceptions.Fail: Configuration parameter 'dfs.datanode.kerberos.principal' was not found in configurations dictionary ... View more

@Rishi, @Gaurav Sharma @Jay Kumar SenSharma Please guide me on the similar issue. resource_management.core.exceptions.ExecutionFailed: Execution of 'kinit -kt /etc/security/keytabs/hdfs.headless.keytab ' returned 127. -bash: kinit: command not found raise Fail("Configuration parameter '" + self.name + "' was not found in configurations dictionary!") resource_management.core.exceptions.Fail: Configuration parameter 'dfs.datanode.kerberos.principal' was not found in configurations dictionary! I am getting these error when i restart Hadoop services. I disabled Kerberos and removed and manually removed these files : rm -rf /var/kerberos/ rm /etc/krb5.conf rm -rf /usr/lib64/krb5 Now i dont know whats causing this issue please guide me on this. Regards, Manjunath P N ... View more

same issue with me please suggest some solution. @benoit moisan did you find any solution??? Please guide me. ... View more

Hi Robert, Could you please clarify me some doubts. I have installed kerberos in my cluster and its working fine. Now i have to enable HA for Kerberos so as per my understanding I should install KDC in another server which acts as Standby and then I should update krb5.conf file on both servers as mentioned above. Is my understanding correct? if not could you please guide me through the steps to enable HA. Kind Regards, Manjunath P N ... View more

@Jay Kumar SenSharma, Thank you for your inputs. After running yum install commands the outcome will be krb5.conf file and i am already having the same file structure in my repository so can I directly go ahead with enabling Kerberos via Ambari and does the conf file will accept this? Regards, Manjunath P N ... View more

Hi @Jay Kumar SenSharma, Thank you for your inputs. When I am trying to install Kerberos using "yum install krb5-server krb5-libs krb5-workstation" it is failing to install with below error messages. https://fedora-mirror.zerocopy.io/epel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed connect to fedora-mirror.zerocopy.io:443; Connection refused" Trying other mirror. http://mirror.de.leaseweb.net/epel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2a00:c98:2030:a034::21: Network is unreachable" Trying other mirror. http://ftp.uni-stuttgart.de/epel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2001:7c0:2041:8::112: Network is unreachable" Trying other mirror. http://mirror.23media.de/epel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2a00:f48:1007::80: Network is unreachable" Trying other mirror. https://mirror.imt-systems.com/epel/7/x86_64/repodata/repomd.xml: [Errno 14] curl#7 - "Failed to connect to 2a01:7e0:0:201::10:20: Network is unreachable" Trying other mirror. ^Chttp://fedora.tu-chemnitz.de/pub/linux/fedora-epel/7/x86_64/repodata/repomd.xml: [Errno -1] Error importing repomd.xml for epel: Damaged repomd.xml file Trying other mirror. Error list keeps on increasing what could be the reason for this? Regards, Manjunath P N ... View more