@Stefan Kupstaitis-Dunkler Can you please confirm it is Ambari 2.5.0? I see that Line 302 where this is failing code matches Ambari 2.5.1 (not Ambari 2.5.0) 1. (Ambari 2.5.1) https://github.com/apache/ambari/blob/release-2.5.1/ambari-server/src/main/resources/common-services/ZEPPELIN/0.6.0.2.5/package/scripts/master.py#L301 2. (Ambari 2.5.0) https://github.com/apache/ambari/blob/release-2.5.0/ambari-server/src/main/resources/common-services/ZEPPELIN/0.6.0.2.5/package/scripts/master.py#L302 . By any chance have you recently upgraded your ambari ? Also the Agent? Are the RPMs are of same version. rpm -qa | grep ambari . ... View more

@Tania Khan The followign line indicates that you have entered wrong entries inside the "/etc/hosts" file of all the hosts. https://ildsm.:8440 is not reachable **Notice** an extra DOT at the end of the "ildsm." that is causing the issue here. . If you want to set the Ambari server host name as "ildsm" then the "/etc/hosts" file entry should be : Please remove the ".<domain> part from the "/etc/hosts" file entry. 10.xx.xx.xx ILDSM 192.xxx.xx.xx ILDSM1 . Also make sure that the following command returns the correct output: (On all hosts) # hostname -f Then restart the ambari server and register agents. Regarding correct hostname setup, Please refer to the following links: 1. https://docs.hortonworks.com/HDPDocuments/Ambari-2.5.1.0/bk_ambari-installation/content/set_the_hostname.html 2. https://docs.hortonworks.com/HDPDocuments/Ambari-2.5.1.0/bk_ambari-installation/content/edit_the_network_configuration_file.html . ... View more

@Hugo Felix Sometimes this happens when the notebooks are corrupted. So can you please try the following: - Move the notebooks from "/usr/hdp/current/zeppelin-server/notebook" to some other directory and then try starting the Zeppelin again. Example: # mv /usr/hdp/current/zeppelin-server/notebook /usr/hdp/current/zeppelin-server/notebook_OLD # mkdir /usr/hdp/current/zeppelin-server/notebook - Now restart the Zeppelin service. (OR) If this does not resolve the issue then will suggest you to reinstall the "zeppelin" packages to restore interpreter.json. . ... View more

@bhavik shah Can you try adding the "zeppelin.server.ssl.port" property to the "Custom zeppelin-config" from ambari UI to see if it works. Ambari UI --> Zeppelin --> Configs --> Advanced --> "Custom zeppelin-config" --> Add Property. . ... View more

@Mark Lambie Can you please share the output of the following commands? After doing SSH as following to the host. ssh -p 2222 root@127.0.0.1 [root@sandbox ~]# hdp-select versions 2.6.0.3-8 [root@sandbox ~]# which ambari-admin-password-reset /usr/sbin/ambari-admin-password-reset . Also please try the web link to access the terminal just in case above does not work. http://localhost:4200/ . ... View more