we are runs spark application on hadoop cluster ( HDP version - 2.6.5 from hortonworks )   from the logs we can see the following Diagnostics   User: airflow Application Type: SPARK User class threw exception: org.apache.hadoop.security.AccessControlException: Permission denied. user=airflow is not the owner of inode=alapati not clearly what we need to search in `HDFS` in order to find why we get Permission denied ... View more

hi all   we are using the following HDP cluster with ambari ,   list of nodes and their RHEL version   3 masters machines ( with namenode & resource manager ) , installed on RHEL 7.2 312 DATA-NODES machines , installed on RHEL 7.2 5 kafka machines , installed on RHEL 7.2   now we want to add the following machines to the cluster but with RHEL 7.5   85 DATA-NODES machines , should be installed on RHEL 7.5 version 2 kafka brokers machines , should be installed on RHEL 7.5 version   so my question is   can we mix in HDP cluster RHEL 7.2 with RHEL  7.5 version ?           ... View more

hi all     when we look on https://supportmatrix.hortonworks.com/   And choose the RHEL 7.7    HDP or AMBARI versions are not marked from some unclear reason!   so we cant captured the HDP or ambari version for RHEL 7.7   is it problem in support-matrix page ?  or something else ?   any way if we want to use RHEL 7.7   what are the HDP and AMBARI Versions? that fit this RHEL version ?           ... View more