[TEZ-4473] Remove pointless MDC_LOGGING message from logs if there is no custom MDC key

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.10.3
• Assignee: Ayush Saxena
• Reporter: László Bodor
• Created: 10/Feb/23 13:26
• Updated: 23/Jun/23 09:35
• Resolved: 23/Jun/23 09:35

Description

2023-02-10 12:42:35,251 INFO  [Thread-367] util.LoggingUtils (LoggingUtils.java:initLoggingContext(58)) - MDC_LOGGING: setting up MDC keys: keys: [] / conf: []
2023-02-10 12:42:35,251 WARN  [Thread-367] util.LoggingUtils (LoggingUtils.java:initLoggingContext(65)) - cannot set mdc key: 

This 2 lines are confusing, keys: [] / conf: [] means we don't use the feature introduced in TEZ-4039 at all

Issue Links

• is caused by: TEZ-4039 Tez should inject dag id, query id into MDC
• links to: GitHub Pull Request #294