https://community.cloudera.com/t5/Archives-of-Support-Questions/Kerberized-HDP-2-4-Error-in-upgrading-Ambari-to-2-2-2/m-p/145210#M48432 <P>the issue is fixed, ambari-server was not upgraded, while the agent was upgraded - hence the issue.</P> Fri, 09 Dec 2016 14:38:39 GMT karan_alang1 2016-12-09T14:38:39Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Kerberized-HDP-2-4-Error-in-upgrading-Ambari-to-2-2-2/m-p/145209#M48431 <P>Hi All - i'm upgrading Ambari from 2.2.1 to 2.2.2.0, and running into issues while starting ambari-agent.</P><P>Pls. note - i'm refering the following link for the upgrade -</P><P><A href="http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.2.0/bk_upgrading_Ambari/content/_upgrade_ambari.html" target="_blank">http://docs.hortonworks.com/HDPDocuments/Ambari-2.2.2.0/bk_upgrading_Ambari/content/_upgrade_ambari.html</A></P><P>----------Error ------------------------------------------------------------------------------------------</P><P>[root@sandbox ~]# ambari-agent start Verifying Python version compatibility... Using python /usr/bin/python Checking for previously running Ambari Agent... Starting ambari-agent Verifying ambari-agent process status... ERROR: ambari-agent start failed. For more details, see /var/log/ambari-agent/ambari-agent.out: ==================== Traceback (most recent call last): File "/usr/lib/python2.6/site-packages/ambari_agent/AmbariAgent.py", line 24, in &lt;module&gt; from Controller import AGENT_AUTO_RESTART_EXIT_CODE File "/usr/lib/python2.6/site-packages/ambari_agent/Controller.py", line 44, in &lt;module&gt; from ambari_agent.AlertSchedulerHandler import AlertSchedulerHandler File "/usr/lib/python2.6/site-packages/ambari_agent/AlertSchedulerHandler.py", line 34, in &lt;module&gt; from alerts.script_alert import ScriptAlert File "/usr/lib/python2.6/site-packages/ambari_agent/alerts/script_alert.py", line 27, in &lt;module&gt; from resource_management.libraries.functions.curl_krb_request import KERBEROS_KINIT_TIMER_PARAMETER ImportError: cannot import name KERBEROS_KINIT_TIMER_PARAMETER ==================== Agent out at: /var/log/ambari-agent/ambari-agent.out Agent log at: /var/log/ambari-agent/ambari-agent.log</P><P>-----------------------------------------------</P><P>Any ideas on how to overcome this error ?</P><P>Appreciate your inputs. thanks.</P> Fri, 09 Dec 2016 14:24:26 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Kerberized-HDP-2-4-Error-in-upgrading-Ambari-to-2-2-2/m-p/145209#M48431 karan_alang1 2016-12-09T14:24:26Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Kerberized-HDP-2-4-Error-in-upgrading-Ambari-to-2-2-2/m-p/145210#M48432 <P>the issue is fixed, ambari-server was not upgraded, while the agent was upgraded - hence the issue.</P> Fri, 09 Dec 2016 14:38:39 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Kerberized-HDP-2-4-Error-in-upgrading-Ambari-to-2-2-2/m-p/145210#M48432 karan_alang1 2016-12-09T14:38:39Z