data-processing/flink/applications/stream-tweets/src/main/resources/log4j2.properties
# rootLogger.level = INFO
rootLogger.level = ERROR
rootLogger.appenderRef.console.ref = ConsoleAppender
appender.console.name = ConsoleAppender
appender.console.type = CONSOLE
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = %d{HH:mm:ss,SSS} %-5p %-60c %x - %m%n