[AMBARI-24844] Improve copy of atlas.war

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.7.3
• Component/s: ambari-server
• Labels: pull-request-available
• Assignee: Attila Doroszlai
• Reporter: Attila Doroszlai
• Created: 29/Oct/18 20:12
• Updated: 01/Nov/18 16:41
• Resolved: 01/Nov/18 16:41

Description

Atlas Metadata Server's start script in Ambari includes a step to copy atlas.war from the default location to the expanded_webapp_dir. This is performed using File(content=StaticFile), which reads and writes the contents of the war file to/from memory. It may take 1-3 seconds to perform, and is done even if the source and target files are the same, because there is no check on the paths.

This could be improved:

1. Use cp to copy
2. Skip the operation if source and target are the same

Issue Links

• links to: GitHub Pull Request #2558