Naveen Gangam created HIVE-21209:
------------------------------------
Summary: [Improvement] Exchange partitition to be metadata only
change?
Key: HIVE-21209
URL: https://issues.apache.org/jira/browse/HIVE-21209
Project: Hive
Issue Type: Improvement
Components: Hive
Affects Versions: 2.1.1
Reporter: Naveen Gangam
https://issues.apache.org/jira/browse/HIVE-14560
Current implementation of the above jira is a metadata and a "copy" of the
partition data on the DFS. Could possibly take a long time to copy the data for
large partition data especially different storage clusters. When exchanging a
partition from a HDFS to S3a or vice versa the data is copied and this is
client copy operation and it can be very slow if the partition is very large.
The customer would like the "exchange partition" operation to purely metadata.
I would like to start a discussion on whether this improvement is to be made.
Obviously, the current behavior will be supported but and option for it to be a
metadata operation only needs to be evaluated.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
