Support Questions

SatishS · ‎12-14-2015

Hello Friends,

I am new to HDP and was trying to access the Hive on Beeswax. when I run a command "Show databases;" it's throwing following error,

Error: Error occurred executing hive query: Error while processing statement: FAILED: Hive Internal Error: com.sun.jersey.api.client.ClientHandlerException(java.io.IOException: org.apache.hadoop.security.authentication.client.AuthenticationException: Authentication failed, status: 503, message: Service Unavailable).

and

when I try to run the hive command on command prompt, it's giving some java exceptions.

Please help me to resolve this issue.

Thanks,

Satish.

deepesh1 · ‎12-15-2015

Looking at your attachments, it looks like you are trying to launch hive cli as root user. Make sure /user/root exists on HDFS and is owned by root user. If it's not so, login/sudo as hdfs user and run the following commands:

hadoop fs -mkdir /user/root
hadoop fs -chmod -R 755 /user/root
hadoop fs -chown -R root:root /user/root

Launch the hive cli after that.

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SatishS · ‎12-16-2015

ok, thanks. I was looking into Cloudera sandbox and I don't see any root user under users folder on HDFS. Any idea why it's different. even it's using the YARN.

harsh85_amc · ‎01-05-2016

@Deepesh how to run sudo on sandbox..I typed sudo -i then also it is giving root@sandbox.

If i type hadoop fs -mkdir /user/root it is giving error message

mkdir permission denied : user :root, access : WRITE, inode="user/root": hdfs:hdfs:drwxr-xr-x

deepesh1 · ‎01-05-2016

Try "su - hdfs" and then run the above hadoop commands.

seenivasansindh · ‎01-05-2016

Deepesh,

In HDFS environment is the hdfs user superuser. As in a typical UNIX env root is the superuser and without root user password we can't perform any of the stuff.

deepesh1 · ‎01-05-2016

Yes, hdfs is typically the superuser on HDFS.

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