On 30 Sep 2015, at 03:24, Mohammed Guller <mohammed@glassbeam.com> wrote:

Does each user needs to start own thrift server to use it?


No. One of the benefits of the Spark Thrift Server is that it allows multiple users to share a single SparkContext.


Most likely, you have file permissions issue.


I don't think the spark hive thrift server does the multi-user stuff (yet)



From: Jagat Singh [mailto:jagatsingh@gmail.com]
Sent: Tuesday, September 29, 2015 5:30 PM
To: SparkUser
Subject: Spark thrift service and Hive impersonation.




I have started the Spark thrift service using spark user.


Does each user needs to start own thrift server to use it?


Using beeline i am able to connect to server and execute show tables;


However when we try to execute some real query it runs as spark user and HDFS permissions does not allow them to be read.


The query fails with error


0: jdbc:hive2://localhost:10000> select count(*) from mytable;

Error: org.apache.hadoop.hive.ql.metadata.HiveException: Unable to fetch table mytable. java.security.AccessControlException: Permission denied: user=spark, access=READ, inode="/data/mytable":tdcprdr:tdcprdr:drwxr-x--x

            at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkFsPermission(FSPermissionChecker.java:271)



And in thrift server we get log.



In the hive-site.xml we have impersonation enabled.












Is there any other configuration to be done for it to work like normal hive thrift server.