I understand Flink uses log4j to manage log. So I change log setting in log4j.property, where I set the output location. However, when I start job master, it says that the log location is changed, not the default location. So how could I change the log location of Flink gracefully?
The default lib directory is set via bin/config.sh. Look for FLINK_LOG_DIR. You can just update the script to change the default log directory.