[SPARK-37792] Spark shell sets log level to INFO by default

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.0
• Component/s: Spark Shell
• Assignee: L. C. Hsieh
• Reporter: Hyukjin Kwon
• Created: 31/Dec/21 01:56
• Updated: 12/Dec/22 18:10
• Resolved: 05/Jan/22 00:51

Description

./bin/spark-shell

Setting default log level to "WARN".
To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use setLogLevel(newLevel).
21/12/31 10:55:04 INFO SignalUtils: Registering signal handler for INT
21/12/31 10:55:08 INFO HiveConf: Found configuration file null
21/12/31 10:55:08 INFO SparkContext: Running Spark version 3.3.0-SNAPSHOT
...

21/12/31 10:55:09 INFO BlockManager: Initialized BlockManager: BlockManagerId(driver, ..., None)
...
Welcome to
      ____              __
     / __/__  ___ _____/ /__
    _\ \/ _ \/ _ `/ __/  '_/
   /___/ .__/\_,_/_/ /_/\_\   version 3.3.0-SNAPSHOT
      /_/

Using Scala version 2.12.15 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_291)
Type in expressions to have them evaluated.
Type :help for more information.

Issue Links

• is caused by: SPARK-37746 log4j2-defaults.properties is not working since log4j 2 is always initialized by default
• is related to: SPARK-37887 PySpark shell sets log level to INFO by default
• links to: [Github] Pull Request #35080 (viirya)