I am facing a problem
Some days I get the access to a.cloudxlab.com but some days I get error
which is
Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
I require this information because while loading the table using sqoop I am getting
the error
FileAlreadyExistsException: Output directory hdfs://ip-172-31-53-48.ec2.internal:8020/user/uutkarshsingh7351/ztutorials_tbl already exists
where I need to delete the above generated file , but the permission is denied for the access
Hi Utkarsh,
Some days I get the access to a.cloudxlab.com but some days I get error which is
Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
The a.cloudxlab.com runs the namenode, so ssh access on this machine is not allowed. While you can login to the web-console or terminal of jupyter or usual SSH on e/f/g.
FileAlreadyExistsException: Output directory hdfs://ip-172-31-5348.ec2.internal:8020/user/uutkarshsingh7351/ztutorials_tbl already exists
Please take a look at the HDFS using File Browser in the HUE or using hadoop fs -ls.
When you are using Sqoop to copy the data from Sqoop to a folder in HDFS, the target folder in HDFS must not exist.
You might need to delete ztutorials_tbl folder in hdfs using either File Browser in Hue or using hadoop fs -rm -r ztutorials_tbl.
I hope that helps.
Cheers!!
Thanks, I got it now @sgiri
I am also not allowed to log in to a,b,c,d as well. What is the significance of the other nodes(b,c,d) ?
Hi Utkarsh,
b is being used for YARN resource manager primarily. c is used for hive and other services. While d is for Hue more or less.
Also, a, b, c and d are also running other masters (such as Hbase) and the backups of services.