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)