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Commissioning an HDFS Application in the Windows Environment
Updated on 2025-04-14 GMT+08:00
Commissioning an HDFS Application in the Windows Environment
Scenario
After the code development is complete, you can run an application in the Windows development environment. If the network between the local and the cluster service plane is normal, you can perform the commissioning on the local host.
After an HDFS application is run, you can learn the application running conditions by viewing the running result or HDFS logs.
Compiling and Running the Program
- (Optional) In a development environment (for example, IntelliJ IDEA), a user must be specified to run the example code. There are two ways to specify the user:
Select the sample program HdfsExample.java or ColocationExample.java to be run, right-click the project, and choose Run Configurations from the shortcut menu. In the dialog box that is displayed, select JavaApplication > HdfsExample to set the running parameters. On the menu bar of the IntelliJ IDEA, choose Run > Edit Configurations. In the dialog box that is displayed, set the running user.
-DHADOOP_USER_NAME=test
Figure 1 Parameter Configuration
The test user here is an example. To run the example code related to the Colocation operation, the user must be a member of the supergroup group.
- If the environment variable is configured according to 1 click Run to run the application. If not, choose the following two projects separately and run the projects:
- Choose HdfsExample.java, right-click the project and choose from the shortcut menu to run the project.
- Choose ColocationExample.java, right-click the project and choose from the shortcut menu to run the project.
- It is forbidden to restart HDFS service while HDFS application is in running status, otherwise the application will fail.
- When the Colocation project is run, the HDFS parameter fs.defaultFS cannot be set to viewfs://ClusterX.
Checking the Commissioning Result
- Learn the application running conditions by viewing the running result.
- The running result of the HDFS windows example application is shown as follows:
1654 [main] WARN org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory - The short-circuit local reads feature cannot be used because UNIX Domain sockets are not available on Windows. 2013 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to create path /user/hdfs-examples 2137 [main] WARN org.apache.hadoop.util.NativeCodeLoader - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 2590 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to write. 3245 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to append. 4447 [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. 4447 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to read. 4509 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete the file /user/hdfs-examples\test.txt 4618 [main] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete path /user/hdfs-examples 4743 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to create path /user/hdfs-examples/hdfs_example_1 4743 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to create path /user/hdfs-examples/hdfs_example_0 5087 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to write. 5087 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to write. 6507 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to append. 6553 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to append. 7505 [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. 7505 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to read. 7568 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete the file /user/hdfs-examples/hdfs_example_1\test.txt 7583 [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. 7583 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to read. 7630 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete the file /user/hdfs-examples/hdfs_example_0\test.txt 7677 [hdfs_example_1] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete path /user/hdfs-examples/hdfs_example_1 7739 [hdfs_example_0] INFO com.huawei.bigdata.hdfs.examples.HdfsExample - success to delete path /user/hdfs-examples/hdfs_example_0
In the Windows environment, the following exception occurs but does not affect services.
java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries.
- The running result of the Colocation windows example application is shown as follows:
1623 [main] WARN org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory - The short-circuit local reads feature cannot be used because UNIX Domain sockets are not available on Windows. 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:zookeeper.version=V100R002C30, built on 10/19/2017 04:21 GMT 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:host.name=siay7user1.china.huawei.com 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:java.version=1.8.0_131 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:java.vendor=Oracle Corporation 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:java.home=D:\Program Files\Java\jre1.8.0_131 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:java.class.path=D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\bin;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\commons-cli-1.2.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\commons-codec-1.4.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\commons-collections-3.2.2.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\commons-configuration-1.6.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\commons-io-2.4.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\commons-lang-2.6.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\commons-logging-1.1.3.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\dynalogger-V100R002C30.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\guava-11.0.2.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-annotations-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-auth-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-common-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-hdfs-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-hdfs-client-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-hdfs-colocation-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-hdfs-datamovement-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-hdfs-nfs-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-hdfs-restore-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-mapreduce-client-core-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\hadoop-nfs-3.1.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\htrace-core-3.1.0-incubating.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\log4j-1.2.17.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\protobuf-java-2.5.0.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\slf4j-api-1.7.10.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\slf4j-log4j12-1.7.10.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal\lib\zookeeper-3.5.1.jar;D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\SmallFS\FusionInsight-SmallFS-1.0.0.tar.gz\smallfs\share\datasight\smallfs\smallfs-main-V100R002C30.jar 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:java.library.path=D:\Program Files\Java\jre1.8.0_131\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;D:/Program Files/Java/jre1.8.0_131/bin/server;D:/Program Files/Java/jre1.8.0_131/bin;D:/Program Files/Java/jre1.8.0_131/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;D:\Program Files\Java\jdk1.8.0_131\bin;D:\Program Files\Java\jdk1.8.0_131\jre\bin;D:\Program Files (x86)\GitExtensions\;D:\Program Files\Git\cmd;D:\soft\apache-maven-3.2.2\bin;D:\soft\gnubin;D:\soft\protoc-2.5.0-win32;;D:\soft\TMSS;D:\installation package\eclipse-jee-mars-R-win32-x86_64\eclipse;;. 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:java.io.tmpdir=C:\Users\L00430~1\AppData\Local\Temp\ 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:java.compiler=<NA> 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:os.name=Windows 7 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:os.arch=amd64 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:os.version=6.1 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:user.name=user 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:user.home=C:\Users\user 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:user.dir=D:\FIClient\nonSafety\FusionInsight_Cluster_<Cluster ID>_Services_ClientConfig\HDFS\hdfs-example-normal 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:os.memory.free=107MB 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:os.memory.max=1819MB 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Client environment:os.memory.total=123MB 1670 [main] INFO org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=192-168-32-144:2181,192-168-32-67:2181,192-168-33-190:2181 sessionTimeout=45000 watcher=com.huawei.hadoop.oi.colocation.ZooKeeperWatcher@5f9b2141 1794 [main] INFO org.apache.zookeeper.ClientCnxn - zookeeper.request.timeout is not configured. Using default value 120000. 1794 [main] INFO org.apache.zookeeper.ClientCnxn - zookeeper.client.bind.port.range is not configured. 1794 [main] INFO org.apache.zookeeper.ClientCnxn - zookeeper.client.bind.address is not configured. 1794 [main-SendThread(192-168-32-67:2181)] INFO org.apache.zookeeper.client.FourLetterWordMain - connecting to 192-168-32-67 2181 1904 [main-SendThread(192-168-32-67:2181)] INFO org.apache.zookeeper.ClientCnxn - Got server principal from the server and it is null 1904 [main-SendThread(192-168-32-67:2181)] INFO org.apache.zookeeper.ClientCnxn - Using server principal zookeeper/192-168-32-67 1904 [main-SendThread(192-168-32-67:2181)] INFO org.apache.zookeeper.ClientCnxn - Opening socket connection to server 192-168-32-67/192.168.32.67:2181. Will not attempt to authenticate using SASL (unknown error) 1966 [main-SendThread(192-168-32-67:2181)] INFO org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.35.189:50954, server: 192-168-32-67/192.168.32.67:2181 2029 [main-SendThread(192-168-32-67:2181)] INFO org.apache.zookeeper.ClientCnxn - Session establishment complete on server 192-168-32-67/192.168.32.67:2181, sessionid = 0x13000074b7e464b7, negotiated timeout = 45000 2169 [main] INFO com.huawei.hadoop.oi.colocation.ZKUtil - ZooKeeper colocation znode : /hadoop/colocationDetails. Will publish colocation details under this znode hierarchy. Create Group is running... 5212 [main] INFO org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=192-168-32-144:2181,192-168-32-67:2181,192-168-33-190:2181 sessionTimeout=45000 watcher=com.huawei.hadoop.oi.colocation.ZooKeeperWatcher@2438dcd 5212 [main] INFO org.apache.zookeeper.ClientCnxn - zookeeper.request.timeout is not configured. Using default value 120000. 5212 [main] INFO org.apache.zookeeper.ClientCnxn - zookeeper.client.bind.port.range is not configured. 5212 [main] INFO org.apache.zookeeper.ClientCnxn - zookeeper.client.bind.address is not configured. 5212 [main-SendThread(192-168-33-190:2181)] INFO org.apache.zookeeper.client.FourLetterWordMain - connecting to 192-168-33-190 2181 5321 [main-SendThread(192-168-33-190:2181)] INFO org.apache.zookeeper.ClientCnxn - Got server principal from the server and it is null 5321 [main-SendThread(192-168-33-190:2181)] INFO org.apache.zookeeper.ClientCnxn - Using server principal zookeeper/192-168-33-190 5321 [main-SendThread(192-168-33-190:2181)] INFO org.apache.zookeeper.ClientCnxn - Opening socket connection to server 192-168-33-190/192.168.33.190:2181. Will not attempt to authenticate using SASL (unknown error) 5368 [main-SendThread(192-168-33-190:2181)] INFO org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /192.168.35.189:50962, server: 192-168-33-190/192.168.33.190:2181 5430 [main-SendThread(192-168-33-190:2181)] INFO org.apache.zookeeper.ClientCnxn - Session establishment complete on server 192-168-33-190/192.168.33.190:2181, sessionid = 0x14000073f13b657b, negotiated timeout = 45000 5540 [main] INFO com.huawei.hadoop.oi.colocation.ZKUtil - ZooKeeper colocation znode : /hadoop/colocationDetails. Will publish colocation details under this znode hierarchy. Create Group has finished. Put file is running... 5930 [main] WARN org.apache.hadoop.util.NativeCodeLoader - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Put file has finished. Delete file is running... Delete file has finished. Delete Group is running... Delete Group has finished. 6866 [main] INFO org.apache.zookeeper.ZooKeeper - Session: 0x13000074b7e464b7 closed 6866 [main-EventThread] INFO org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x13000074b7e464b7 6928 [main-EventThread] INFO org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x14000073f13b657b 6928 [main] INFO org.apache.zookeeper.ZooKeeper - Session: 0x14000073f13b657b closed
- The running result of the HDFS windows example application is shown as follows:
- Learn the application running conditions by viewing HDFS logs.
The NameNode logs of HDFS offer immediate visibility into application running conditions. You can adjust application programs based on the logs.
Parent topic: Commissioning an HDFS Application
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