vinodkc opened a new pull request, #41746:
URL: https://github.com/apache/spark/pull/41746
### What changes were proposed in this pull request?
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Currently, the sc.setLogLevel() method only sets the log level on the Spark
driver, failing to reflect the desired log level on the executors. With
_--conf spark.log.level_ or sc.setLogLevel(), spark allows tuning the log
level in the user application, but it is not reflecting the log level on
executors.
### Why are the changes needed?
This inconsistency can lead to difficulties in debugging and monitoring
Spark applications, as log messages from the executors may not align with the
expected log level set on the user code.
This PR aims to propagate the log level changes to executors when
sc.setLogLevel() is called or send the current log level when a new executor
is getting registered
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### Does this PR introduce _any_ user-facing change?
No, but with this PR, both driver and executor will show same log level
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### How was this patch tested?
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Added a test case. Also tested manually to verify the same log levels on
both driver and executor
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