I am a running a insert overwrite query as below.
Insert overwrite directory '/org/data/tmp/webapptempspace/UC3/log' select a.* from a join b on ucase(a.name)=ucase(b.name);
It works fine when one of the table has smaller dataset, but when both tables have huge data, it throws the below error.
Failed with exception Unable to move source /org/data/tmp/webapptempspace/UC3/log/.hive-staging_hive_2016-01-11_04-31-06_067_6297667876520454770-1/-ext-10000 to destination
This could be permission issue. you can see the hive server2 log for the error. Log will be in /var/log/hive on the node to which you connect the hive
Is there any more information in the logs? (If you're using HiveServer2, the you can look at those logs, or your client logs if you are using the Hive client directly.) The error is caused by a file system error where it's unable to move the file. The file system should log an error message describing why it failed.
What MoveTask does is moving some files in /tmp volume to /user volume. When the user running doesn't have the right permissions it does not allow moving files between volumes and throws this exception.
-Check /user and /tmp have the full permission
-Check if the below guys are set to true
hive.metastore.server.setugi=true. These parameters instruct hive execute jobs under current shell user
if not then try executing it as root.