[HIVE-17974] If the job resource jar already exists in the HDFS fileSystem, do not upload!

• Type: Improvement
• Status: Patch Available
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 1.2.2
• Fix Version/s: 1.2.3
• Component/s: Hive, Query Processor, Tez
• Target Version/s: 1.2.3
• Assignee: wan kun
• Reporter: wan kun
• Due: 30/Nov/17
• Created: 03/Nov/17 07:21
• Updated: 21/Oct/22 07:31

Description

For Mr or tez application, if the jar resources already exists on the HDFS, the application will still upload the jars to the HDFS when it starts.I thind this is not need.
So, if the original resource file is already on HDFS,I will record it ,and when the application starts, it will use the original file on HDFS.

Issue Links

• duplicates: HIVE-17574 Avoid multiple copies of HDFS-based jars when localizing job-jars