Hi all,   I had faced the same issue while kerberizing a HDP 3.1.0 cluster integrated with Iislon. The Ambari serer is a built on a Postgres DB cluster, hence it was NOT in the hadoop cluster. so it was NOT on the host list. [root@hdpdb ~]# curl -H "X-Requested-By: ambari" -u admin:admin "http://hdpdb.gz.local:8080/api/v1/clusters/Panyu/hosts"     I had to add the ambari server from adding host wizard and just install the clients. It worked around the "Host not found, hostname= xxxx" issue in my case.      Hope it will help, cheer!  ... View more

thanks, @jsensharma    I had to do one more thing (Windows 10 pro, Dell Inspiron): run OptionalFeatures.exe ... View more

@idiot , as this thread was marked 'Solved' in June of 2018 you would have a better chance of receiving a useful response by starting a new thread. This will also provide you with the opportunity to provide details specific to your issue that could aid others in providing a more tailored answer to your question. ... View more

Hi, Can you please have look at this: HBase 2nd Incremental Backup/Restore not Working  ... View more

I've followed all the steps, but I'm not getting these last steps. And, it's showing the same error. Please help me through it. ... View more

I faced similar issue, but REST api thru -   http://localhost:8080/api/v1/cluster/[cluster_name]/services/KERBEROS  was not available, and kerberos remove was giving error - "The 'krb5-conf' configuration is not available" in ambari-server.log   We had Ambari 2.7.5.0. In that version clusterconfigmapping is not present, we had to do below procedure:   In ambari db -  psql -U ambari -d ambari (default password: bigdata) ambari=> select config_id, selected, create_timestamp from clusterconfig where type_name in ('kerberos-env', 'krb5-conf'); config_id | selected | create_timestamp -----------+----------+------------------ 352 | 0 | 1589796215822 452 | 0 | 1589800820822 << Select the record with latest timestamp 353 | 0 | 1589796215857 453 | 0 | 1589800820858 <<Select the record with latest timestamp (4 rows) ambari=> update clusterconfig set selected=1 where config_id=452; UPDATE 1 ambari=> update clusterconfig set selected=1 where config_id=453; UPDATE 1 ambari=> update clusterconfig set selected=1 where config_id=452; update clusterconfig set selected=1 where config_id=453;   * Still the kerberos REST api was not been shown. * Remove the kerberos * Add kerberos back ... View more

@saqie,  as this thread was marked 'Solved' in 2018, you would have a better chance of receiving a useful response by starting a new thread. This will also provide you with the opportunity to provide details specific to your issue that could aid others in providing a more tailored answer to your question. ... View more

@ansharma1  You can run the following query in Ambari DB SELECT view_instance_id,resource_id,view_name, cluster_handle,cluster_type FROM viewinstance; Above query will show that the view which is causing the problem might not be associated with any cluster_handle. (cluster_handle is basically the cluster_id, which you can see in the clusters table).  If cluster_handle for a view is not correctly updated then you might see that kind of message: org.apache.ambari.server.view.IllegalClusterException: Failed to get cluster information associated with this view instance   If you want to use the same old View to work fine  (instead of creating a new Instance of that view) then you might have to make sure to update the cluster_handle for that view instance is set correctly. Like 1. Take ambari DB dump (latest dump for backup), As we are going to change the DB manually. 2. Stop ambari-server 3. Run the following queries in the amabri DB. NOTE: Following is just a dummy query the values for 'cluster_handle' and 'view_instance_id' in that query may vary. UPDATE viewinstance SET cluster_handle = 4 WHERE view_instance_id=3;     ... View more

Hi @abhagi,   Thanks for confirming this and great to know the issue got resolved! Please mark this thread as resolved when you get a chance.   Cheers, Li ... View more

Hi Victor, did you find the solution. We are also into the same scenario and unable to install kerberos on HDP 3.1 though same steps worked smoothly on HDP 2.6. Kindly suggest if any recommendations. ... View more