@Venkatd  Can you share the walkthrough of what you have already done and the errors you are encountering? It will be easier to help you from that standpoint and don't forget to mention the versions of HDP/Atlas   ... View more

@imule  Firstly I would like to ask if there were any changes in the cluster i.e Patching or rpm ? if the spark-submit was running successfully before you need to know this could be linked to the python version On the edge/gateway node   # python -V # Python 3.7.7 # conda deactivate # Python 2.7.5   Then try relaunching your spark-submit ... View more

@dmharshit  The 2 SQL inserts are not identical the latter only updates the password while the former user and password. Prior to your update did your backup the table? Geoffrey   ... View more

@dmharshit  To resolve this issue, you will have to update Ranger’s backend database directly to reset the password you will need to write access to Ranger’s backend database.   Using MySQL you know how to log into MySQL from either the command line  The users who can access Ranger’s Admin Web UI, also call Portal, are stored in a table called “x_portal_user“. mysql> show tables; +------------------------------+ | Tables_in_ranger | +------------------------------+ | vx_trx_log | | x_access_type_def | .... | x_portal_user | | x_portal_user_role | ... +------------------------------+ 67 rows in set (0.00 sec) Query this table to confirm your Admin user is present in the table: mysql> SELECT id, first_name, last_name, login_id, password, status \ FROM x_portal_user WHERE login_id = 'admin'; +----+------------+-----------+----------+----------------------------------+--------+ | id | first_name | last_name | login_id | password | status | +----+------------+-----------+----------+----------------------------------+--------+ | 1 | Admin | | admin | fdea9c9f5fabb9c4120b9834684f0ff0 | 1 | +----+------------+-----------+----------+----------------------------------+--------+ 1 row in set (0.00 sec) The password corresponds to the hashed value of “fdea9c9f5fabb9c4120b9834684f0ff0”,  reset it to default value of “admin”, which has the hash value of “ceb4f32325eda6142bd65215f4c0f371”. Please run the below query: UPDATE x_portal_user SET password = 'ceb4f32325eda6142bd65215f4c0f371' WHERE login_id = 'admin'; After that, just log into Ranger Web UI using “admin” as username and “admin” as password, then update the password IMMEDIATELY through web UI. Hope that helps Geoffrey ... View more

@hebamahmoud  You first need to integrate Kudu with HMS  I would advise you to read the whole document Geoffrey ... View more

@vkotsas  First, you need to establish communication between the 2 [server01 and server02] to ensure the DNS can resolve, ssh is okay and Kerberos cross-realm is working if the clusters are kerberized.   Next copy hdfs-site.xml and core-site.xml from Hadoop server01 to Nifi server02 note the paths as you will need that information during the setup, in the Nifi perspective, the core-site.xml and hdfs-site.xml has all the necessary Hadoop connection information needed.   Use the FetchHDFS and not GetHDFS as the latter deletes the source, this skeleton procedure should help you fine-tune your HDFS copy from server01 to Server02 please let me know  if you need more help?   Geoffrey ... View more

@FLYs  Can you have a look at this solution it could be a classpath issue. Sqoop error   ... View more

@andrea_pretotto  Did you use the -skipTrash option during the deletion?   ... View more

@RZ0  Ambari or Cloudera Manager is an admin UI to make our lives easier. Yes you can run a cluster without Ambari because all the admin scripts [start,stop, status] and Ambari/Ranger/Atlas use API's so the effort will be in the scripting. You will miss the Metrics in one place option of Ambari UI  Hope that answers  ... View more