尝试从Apache Hadoop执行示例地图缩减程序。地图缩小作业运行时,下面有例外。试过hdfs dfs -chmod 777 /
,但没有解决问题。
15/03/10 13:13:10 WARN mapreduce.JobSubmitter: Hadoop command-line option parsing not performed. Implement the Tool interface and execute your application with
ToolRunner to remedy this.
15/03/10 13:13:10 WARN mapreduce.JobSubmitter: No job jar file set. User classes may not be found. See Job or Job#setJar(String).
15/03/10 13:13:10 INFO input.FileInputFormat: Total input paths to process : 2
15/03/10 13:13:11 INFO mapreduce.JobSubmitter: number of splits:2
15/03/10 13:13:11 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1425973278169_0001
15/03/10 13:13:12 INFO mapred.YARNRunner: Job jar is not present. Not adding any jar to the list of resources.
15/03/10 13:13:12 INFO impl.YarnClientImpl: Submitted application application_1425973278169_0001
15/03/10 13:13:12 INFO mapreduce.Job: The url to track the job: http://B2ML10803:8088/proxy/application_1425973278169_0001/
15/03/10 13:13:12 INFO mapreduce.Job: Running job: job_1425973278169_0001
15/03/10 13:13:18 INFO mapreduce.Job: Job job_1425973278169_0001 running in uber mode : false
15/03/10 13:13:18 INFO mapreduce.Job: map 0% reduce 0%
15/03/10 13:13:18 INFO mapreduce.Job: Job job_1425973278169_0001 failed with state FAILED due to: Application application_1425973278169_0001 failed 2 times due
to AM Container for appattempt_1425973278169_0001_000002 exited with exitCode: 1
For more detailed output, check application tracking page:http://B2ML10803:8088/proxy/application_1425973278169_0001/Then, click on links to logs of each attemp
t.
Diagnostics: Exception from container-launch.
Container id: container_1425973278169_0001_02_000001
Exit code: 1
Exception message: CreateSymbolicLink error (1314): A required privilege is not held by the client.
堆栈追踪:
ExitCodeException exitCode=1: CreateSymbolicLink error (1314): A required privilege is not held by the client.
at org.apache.hadoop.util.Shell.runCommand(Shell.java:538)
at org.apache.hadoop.util.Shell.run(Shell.java:455)
at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:715)
at org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.launchContainer(DefaultContainerExecutor.java:211)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:302)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:82)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Shell输出:
1 file(s) moved.
Container exited with a non-zero exit code 1
Failing this attempt. Failing the application.
15/03/10 13:13:18 INFO mapreduce.Job: Counters: 0
答案 0 :(得分:12)
Win 8.1 + hadoop 2.7.0(从源代码构建)
以管理员模式运行命令提示符
执行etc \ hadoop \ hadoop-env.cmd
运行sbin \ start-dfs.cmd
运行sbin \ start-yarn.cmd
现在尝试运行你的工作
答案 1 :(得分:6)
我最近遇到了完全相同的问题。我尝试重新格式化namenode,但它没有工作,我相信这不能永久解决问题。通过@aoetalks的参考,我通过查看本地组策略在Windows Server 2012 R2上解决了这个问题。
总之,请尝试以下步骤:
Win+R
打开"运行..." - 输入gpedit.msc
)如果这仍然不起作用,也许是因为您使用的是管理员帐户。在这种情况下,您必须在同一目录中禁用User Account Control: Run all administrators in Admin Approval Mode
(即组策略中的用户权限分配)然后重新启动计算机以使其生效。
参考:https://superuser.com/questions/104845/permission-to-make-symbolic-links-in-windows-7
答案 2 :(得分:0)
我不知道错误的原因,但重新格式化NameNode 可以帮助我在 Windows 8 中解决它。
c:\hadoop\bin>hdfs namenode -format
答案 3 :(得分:0)
有关解决方案,请参阅this,有关说明,请参见this。基本上,符号链接可能存在安全风险,UAC的设计会阻止用户(甚至是属于Administrators组的用户)创建符号链接,除非他们在提升模式下运行。
简而言之,请尝试重新格式化您的名称节点,并从提升的命令提示符启动Hadoop和所有Hadoop作业。
答案 4 :(得分:0)
我遇到了和你一样的问题。我们通过检查java环境解决了这个问题。
java version
和javac version
。答案 5 :(得分:0)
在Windows中,将hdfs-site.xml中的配置更改为
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>file:///C:/hadoop-2.7.2/data/namenode</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:///C:/hadoop-2.7.2/data/datanode</value>
</property>
</configuration>
以管理员模式打开cmd并运行命令:-
,然后在管理员模式下运行最终的jar hadoop jar C:\ Hadoop_Demo \ wordCount \ target \ wordCount-0.0.1-SNAPSHOT.jar文件:/// C:/Hadoop/input.txt文件:/// C:/ Hadoop / output
答案 6 :(得分:0)
我解决了同样的问题。当您运行“命令提示符”时,让我们“以管理员身份运行”。