Help Center> MapReduce Service> Developer Guide (2.x and Earlier)> HDFS Application Development> Application Commissioning> Commissioning Applications on Linux> Viewing Commissioning Results
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Viewing Commissioning Results

Scenario

After HDFS application running is complete, you can obtain the running status by viewing the running result or HDFS logs.

Procedure

  1. Viewing running results to learn application running status
    • The following provides the running result of the HdfsMain Linux sample application in the security cluster: 
      [root@node-master1dekG client]# hadoop jar hdfs-examples-1.0.jar com.huawei.bigdata.hdfs.examples.HdfsMain
WARNING: Use "yarn jar" to launch YARN applications.
20/03/25 16:29:45 INFO security.UserGroupInformation: Login successful for user hdfsuser using keytab file user.keytab
20/03/25 16:29:45 INFO security.LoginUtil: Login success!!!!!!!!!!!!!!
success to create path /user/hdfs-examples
success to write.
result is : hi, I am bigdata. It is successful if you can see me.
success to read.
success to delete the file /user/hdfs-examples/test.txt
success to delete path /user/hdfs-examples
success to create path /user/hdfs-examples
StoragePolicy:FROZEN
StoragePolicy:COLD
StoragePolicy:WARM
StoragePolicy:HOT
StoragePolicy:ONE_SSD
StoragePolicy:ALL_SSD
StoragePolicy:LAZY_PERSIST
succee to set Storage Policy path /user/hdfs-examples
success to delete path /user/hdfs-examples
    • The following provides the running result of the HdfsMain Linux sample application in the normal cluster: 
      [root@node-master2VknR client]# hadoop jar hdfs-examples-1.0.jar com.huawei.bigdata.hdfs.examples.HdfsMain
WARNING: Use "yarn jar" to launch YARN applications.
success to create path /user/hdfs-examplessuccess to write.
result is : hi, I am bigdata. It is successful if you can see me.
success to read.
success to delete the file /user/hdfs-examples/test.txt
success to delete path /user/hdfs-example
ssuccess to create path /user/hdfs-examples
StoragePolicy:FROZEN
StoragePolicy:COLD
StoragePolicy:WARM
StoragePolicy:HOT
StoragePolicy:ONE_SSD
StoragePolicy:ALL_SSD
StoragePolicy:LAZY_PERSIST
succee to set Storage Policy path /user/hdfs-examples
success to delete path /user/hdfs-examples
  2. Viewing HDFS logs to learn application running status

    View HDFS namenode logs to learn application running status, and adjust applications based on log information.