[TEZ-3619] Tez UI: Improve DAG Data download

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Target Version/s: 0.9.0
• Hadoop Flags: Reviewed
• Assignee: Sreenath Somarajapuram
• Reporter: Sreenath Somarajapuram
• Created: 10/Feb/17 17:49
• Updated: 22/Aug/17 00:02
• Resolved: 15/Feb/17 16:04

Description

1. Graciously bypass errors. Give user whatever is accessible from ATS.
2. If the requests returns any data in the response - Save it to the respective json file in the zip. And add "error." as prefix to the file name.
3. Add a retry logic that uses a random delay
   • The delay can vary between 3-6sec
   • Maximum number of retries can be 3
4. Display a progress bar.
5. Display messages to give a better idea on whats happening internally.