Viewing Commissioning Results

If no exception or failure information is displayed, the application running is successful.

Figure 1 Running succeeded

The following exception may occur when the sample code is running in the Windows OS, but it will not affect services.

java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries.

Log description:

The log level is INFO by default and you can view more detailed information by changing the log level, such as DEBUG, INFO, WARN, ERROR, and FATAL. You can modify the log4j.properties file to change log levels, for example:

hbase.root.logger=INFO,console
log4j.logger.org.apache.zookeeper=INFO
#log4j.logger.org.apache.hadoop.fs.FSNamesystem=DEBUG
log4j.logger.org.apache.hadoop.hbase=INFO
# Make these two classes DEBUG-level. Make them DEBUG to see more zk debug.
log4j.logger.org.apache.hadoop.hbase.zookeeper.ZKUtil=INFO
log4j.logger.org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher=INFO