The IBM Spectrum Scale HDFS protocol log

In IBM Spectrum Scale™ HDFS protocol, all logs are recorded as log4j. The log4j.properties file is under the /usr/lpp/mmfs/hadoop/etc/hadoop directory.

By default, the logs are written under the /usr/lpp/mmfs/hadoop/logs directory.

The following entries can be added into the log4j.properties file to turn on the debugging information:
log4j.logger.org.apache.hadoop.yarn=DEBUG
log4j.logger.org.apache.hadoop.hdfs=DEBUG
log4j.logger.org.apache.hadoop.gpfs=DEBUG
log4j.logger.org.apache.hadoop.security=DEBUG
Parent topic: Protocol services logs