更新时间:2022-09-08 GMT+08:00
查看调测结果
操作场景
HDFS应用程序运行完成后,可直接通过运行结果查看应用程序运行情况,也可以通过HDFS日志获取应用运行情况。
操作步骤
- 查看运行结果获取应用运行情况
- HdfsExample Linux样例程序运行结果如下所示。
0 [main] INFO org.apache.hadoop.security.UserGroupInformation - Login successful for user hdfsDevelop using keytab file user.keytab 1 [main] INFO com.huawei.hadoop.security.LoginUtil - Login success!!!!!!!!!!!!!! 568 [main] WARN org.apache.hadoop.util.NativeCodeLoader - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 582 [main] WARN org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory - The short-circuit local reads feature cannot be used because libhadoop cannot be loaded. 793 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to create path /user/hdfs-examples 969 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to write. 1068 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to append. 1191 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - result is : hi, I am bigdata. It is successful if you can see me.I append this content. 1191 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to read. 1202 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete the file /user/hdfs-examples/test.txt 1210 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete path /user/hdfs-examples 1223 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to create path /user/hdfs-examples/hdfs_example_0 1224 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to create path /user/hdfs-examples/hdfs_example_1 1261 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to write. 1264 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to write. 2807 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to append. 2810 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to append. 2861 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - result is : hi, I am bigdata. It is successful if you can see me.I append this content. 2861 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to read. 2866 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete the file /user/hdfs-examples/hdfs_example_0/test.txt 2874 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete path /user/hdfs-examples/hdfs_example_0 2874 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - result is : hi, I am bigdata. It is successful if you can see me.I append this content. 2874 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to read. 2879 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete the file /user/hdfs-examples/hdfs_example_1/test.txt 2885 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete path /user/hdfs-examples/hdfs_example_1
- ColocationExample Linux样例程序运行结果如下所示。
0 [main] INFO com.huawei.hadoop.security.LoginUtil - JaasConfiguration loginContextName=Client principal=hdfsDevelop useTicketCache=false keytabFile=/opt/hdfsDemo/conf/user.keytab 817 [main] INFO org.apache.hadoop.security.UserGroupInformation - Login successful for user hdfsDevelop using keytab file user.keytab 817 [main] INFO com.huawei.hadoop.security.LoginUtil - Login success!!!!!!!!!!!!!! 1380 [main] WARN org.apache.hadoop.util.NativeCodeLoader - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable ... Create Group has finished. Put file is running... Put file has finished. Delete file is running... Delete file has finished. Delete Group is running... Delete Group has finished. ...
- HdfsExample Linux样例程序运行结果如下所示。
- 查看HDFS日志获取应用运行情况
您可以查看HDFS的namenode日志了解应用运行情况,并根据日志信息调整应用程序。
父主题: 在Linux中调测程序