@Zack Riesland Yes, it is safe to remove these folders and do a clean up. There are already actually cleanup scripts for this. Basically when a client runs a query with HiveServer2, Hive first creates these temporary folders to store intermediate/temporary data. For most queries, this is cleaned up at the end of query but sometimes due to issues with the query, these files are still hanging and you have to do a manual cleanup. Check this link for more details. https://cwiki.apache.org/confluence/display/Hive/AdminManual+Configuration#AdminManualConfiguration-TemporaryFolders Following link might also give you some ideas on how to cleanup. https://community.hortonworks.com/questions/19204/do-we-have-any-script-which-we-can-use-to-clean-tm.html
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