Simple Impersonation Error: User does not have access to open file...

Problem

Datameer users using Simple Impersonation receive the error message:

User does not have access to open file <file path>

 

Cause

MapR Hadoop distribution 4.0.2 has a bug that the super user (SU) is not allowed to access all files. Datameer's Simple Impersonation requires the super user's permission to request files to fulfill impersonation. 

 

Solution

MapR is aware of the issue and has released a patched version (MapR 4.0.2.p33911) which resolves the problem.

The patched version is supported by Datameer in version 5.10.