[YARN-8429] Improve diagnostic message when artifact is not set properly

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.1
• Fix Version/s: 3.2.0, 3.1.2
• Assignee: Gour Saha
• Reporter: Yesha Vora
• Created: 14/Jun/18 20:12
• Updated: 27/Jul/18 18:29
• Resolved: 27/Jul/18 00:16

Description

Steps:

1) Create launch json file. Replace "artifact" with "artifacts"
2) launch yarn service app with cli

The application launch fails with below error

[xxx xxx]$ yarn app -launch test2-2 test.json 
18/06/14 17:08:00 INFO client.AHSProxy: Connecting to Application History server at xxx/xxx:10200
18/06/14 17:08:00 INFO client.AHSProxy: Connecting to Application History server at xxx/xxx:10200
18/06/14 17:08:00 INFO client.ApiServiceClient: Loading service definition from local FS: /xxx/test.json
18/06/14 17:08:01 INFO util.log: Logging initialized @2782ms
18/06/14 17:08:01 ERROR client.ApiServiceClient: Dest_file must not be absolute path: /xxx/xxx

artifact field is not mandatory. However, If that field is specified incorrectly, launch cmd should fail with proper error.
Here, The error message regarding Dest file is misleading.