[HIVE-5208] Provide an easier way to capture DEBUG logging

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 0.11.0
• Component/s: CLI
• Assignee: Unassigned
• Reporter: Harsh J
• Created: 04/Sep/13 05:56
• Updated: 19/Nov/19 17:36

Description

Capturing debug logging for troubleshooting is painful in Hive today:

1. It doesn't log anywhere by default.
2. We need to add a long "-hiveconf hive.root.logger=DEBUG,console" to the Hive CLI just to enable the debug flag, or set an equivalent env-var appropriately.

I suggest we make this simpler via either one of the below:

1. Provide a wrapped binary, "hive-debug", so folks can simply re-run
the "hive-debug" command and re-run their query and capture an output. This could also write to a pre-designated $PWD file.
2. Provide a simpler switch, such as "-verbose" that automatically
toggles the flag instead, much like what Beeline does today already.