[OOZIE-2867] [Coordinators] Emphasize Region/City timezone format

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.3.0
• Fix Version/s: 5.1.0
• Component/s: coordinator
• Assignee: Artem Ervits
• Reporter: Andras Piros
• Created: 18/Apr/17 16:29
• Updated: 11/Aug/20 10:18
• Resolved: 21/May/18 10:19

Description

It seems that some time zone abbreviations like BST for British Summer Time silently just do not get accepted correctly by Oozie and the underlying JVM.

It would be great to:

• emphasize in the Coordinator Functional Specification that it's best to only use time zone format Continent/City, like Europe/London, or America/Los_Angeles, instead of other formats like PDT, PST, or BST
• if the timezone is not recognized by Oozie, it's best to emit a WARN log and suppose UTC instead of silently ignoring the unknown specified timezone