[BEAM-3475] Support --verbose and/or --debug options so users don't have to tweak logging backend for basic output

• Type: New Feature
• Status: Open
• Priority: P3
• Resolution: Unresolved
• Component/s: sdk-java-core
• Labels: Clarified starter
• Assignee: Unassigned
• Reporter: Kenneth Knowles
• Created: 12/Jan/18 21:46
• Updated: 03/Jun/22 20:13

Description

A good command line interface uses -verbose or -debug to control verbosity for users and contributors to get more info about what is going on in the program. Currently IIUC a user has to tweak JUL which is quite a poor experience and Java-centric rather than a good command line interface. We should add support for this alongside our other tools (like pipeline options parsing) for making it easy to build a pipeline main().

Note that this is for the construction & submission side / core SDK. Each runner has its own needs as far as how to control the worker logging, though it is probably still better to have a general way.