Sahil Takiar created HIVE-16346:
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Summary: inheritPerms should be conditional based on the target
filesystem
Key: HIVE-16346
URL: https://issues.apache.org/jira/browse/HIVE-16346
Project: Hive
Issue Type: Sub-task
Reporter: Sahil Takiar
Assignee: Sahil Takiar
Right now, a lot of the logic in {{Hive.java}} attempts to set permissions of
different files that have been moved / copied. This is only triggered if
{{hive.warehouse.subdir.inherit.perms}} is set to true.
However, on blobstores such as S3, there is no concept of file permissions so
these calls are unnecessary and can could a performance impact.
One solution would be to set {{hive.warehouse.subdir.inherit.perms}} to false,
but this would be a global change that affects an entire HS2 instance. So HDFS
tables will no longer have permissions inheritance.
A better solution would be to make the inheritance of permissions conditional
on the target filesystem.
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