Question

我正在尝试Spring Data - Hadoop从本地计算机的IDE上执行远程群集上的MR代码

Hadoop 1.1.2，Spring 3.2.4，Spring-Data-Hadoop 1.0.0

我的bean配置文件即。 applicationContext.xml 如下：

        <?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:hdp="http://www.springframework.org/schema/hadoop"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 
    http://www.springframework.org/schema/hadoop http://www.springframework.org/schema/hadoop/spring-hadoop.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">

    <context:property-placeholder location="resources/hadoop.properties" />

    <hdp:configuration file-system-uri="${hd.fs}" job-tracker-uri="${hd.jobtracker.uri}">

    </hdp:configuration>

    <hdp:job id="wc-job" mapper="com.hadoop.basics.WordCounter.WCMapper"
        reducer="com.hadoop.basics.WordCounter.WCReducer" input-path="${wordcount.input.path}"
        output-path="${wordcount.output.path}" user="bigdata">
    </hdp:job>

    <hdp:job-runner id="myjobs-runner" job-ref="wc-job"
        run-at-startup="true" />

    <hdp:resource-loader id="resourceLoader" uri="${hd.fs}"
        user="bigdata" />   
</beans>

hadoop.properties

hd.fs=hdfs://cloudx-843-770:9000
hd.jobtracker.uri=cloudx-843-770:9001

wordcount.input.path=/scratchpad/input/Childhood_days.txt
wordcount.output.path=/scratchpad/output

我正在做的java类'Run as ...'

package com.hadoop.basics;

import java.io.IOException;
import java.util.StringTokenizer;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class WordCounter {

    private static IntWritable one = new IntWritable(1);

    public class WCMapper extends Mapper<Text, Text, Text, IntWritable> {

        @Override
        protected void map(
                Text key,
                Text value,
                org.apache.hadoop.mapreduce.Mapper<Text, Text, Text, IntWritable>.Context context)
                throws IOException, InterruptedException {
            // TODO Auto-generated method stub
            StringTokenizer strTokenizer = new StringTokenizer(value.toString());
            Text token = new Text();

            while (strTokenizer.hasMoreTokens()) {
                token.set(strTokenizer.nextToken());
                context.write(token, one);
            }

        }
    }

    public class WCReducer extends
            Reducer<Text, IntWritable, Text, IntWritable> {
        @Override
        protected void reduce(
                Text key,
                Iterable<IntWritable> values,
                org.apache.hadoop.mapreduce.Reducer<Text, IntWritable, Text, IntWritable>.Context context)
                throws IOException, InterruptedException {
            // TODO Auto-generated method stub

            int sum = 0;

            for (IntWritable value : values) {
                sum += value.get();
            }

            context.write(key, new IntWritable(sum));
        }
    }

    public static void main(String[] args) {
        AbstractApplicationContext context = new ClassPathXmlApplicationContext(
                "applicationContext.xml", WordCounter.class);
        System.out.println("Word Count Application Running");
        context.registerShutdownHook();
    }
}

输出结果为：

Aug 22, 2013 9:59:02 AM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@1815338: startup date [Thu Aug 22 09:59:02 IST 2013]; root of context hierarchy
Aug 22, 2013 9:59:03 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [com/hadoop/basics/applicationContext.xml]
Aug 22, 2013 9:59:03 AM org.springframework.core.io.support.PropertiesLoaderSupport loadProperties
INFO: Loading properties file from class path resource [resources/hadoop.properties]
Aug 22, 2013 9:59:03 AM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7c197e: defining beans [org.springframework.context.support.PropertySourcesPlaceholderConfigurer#0,hadoopConfiguration,wc-job,myjobs-runner,resourceLoader]; root of factory hierarchy
Aug 22, 2013 9:59:03 AM org.springframework.data.hadoop.mapreduce.JobExecutor$2 run
INFO: Starting job [wc-job]
Aug 22, 2013 9:59:03 AM org.apache.hadoop.security.UserGroupInformation doAs
SEVERE: PriviledgedActionException as:bigdata via 298790 cause:org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
Aug 22, 2013 9:59:03 AM org.springframework.data.hadoop.mapreduce.JobExecutor$2 run
WARNING: Cannot start job [wc-job]
org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
    at org.apache.hadoop.ipc.Client.call(Client.java:1107)
    at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229)
    at org.apache.hadoop.mapred.$Proxy2.getProtocolVersion(Unknown Source)
    at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:411)
    at org.apache.hadoop.mapred.JobClient.createRPCProxy(JobClient.java:499)
    at org.apache.hadoop.mapred.JobClient.init(JobClient.java:490)
    at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:473)
    at org.apache.hadoop.mapreduce.Job$1.run(Job.java:513)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Unknown Source)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
    at org.apache.hadoop.mapreduce.Job.connect(Job.java:511)
    at org.apache.hadoop.mapreduce.Job.submit(Job.java:499)
    at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:530)
    at org.springframework.data.hadoop.mapreduce.JobExecutor$2.run(JobExecutor.java:197)
    at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:49)
    at org.springframework.data.hadoop.mapreduce.JobExecutor.startJobs(JobExecutor.java:168)
    at org.springframework.data.hadoop.mapreduce.JobExecutor.startJobs(JobExecutor.java:160)
    at org.springframework.data.hadoop.mapreduce.JobRunner.call(JobRunner.java:52)
    at org.springframework.data.hadoop.mapreduce.JobRunner.afterPropertiesSet(JobRunner.java:44)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:197)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:172)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:158)
    at com.hadoop.basics.WordCounter.main(WordCounter.java:58)

Aug 22, 2013 9:59:03 AM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons
INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7c197e: defining beans [org.springframework.context.support.PropertySourcesPlaceholderConfigurer#0,hadoopConfiguration,wc-job,myjobs-runner,resourceLoader]; root of factory hierarchy
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myjobs-runner': Invocation of init method failed; nested exception is java.lang.IllegalStateException: org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1482)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:197)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:172)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:158)
    at com.hadoop.basics.WordCounter.main(WordCounter.java:58)
Caused by: java.lang.IllegalStateException: org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
    at org.springframework.data.hadoop.mapreduce.JobExecutor$2.run(JobExecutor.java:209)
    at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:49)
    at org.springframework.data.hadoop.mapreduce.JobExecutor.startJobs(JobExecutor.java:168)
    at org.springframework.data.hadoop.mapreduce.JobExecutor.startJobs(JobExecutor.java:160)
    at org.springframework.data.hadoop.mapreduce.JobRunner.call(JobRunner.java:52)
    at org.springframework.data.hadoop.mapreduce.JobRunner.afterPropertiesSet(JobRunner.java:44)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479)
    ... 13 more
Caused by: org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
    at org.apache.hadoop.ipc.Client.call(Client.java:1107)
    at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229)
    at org.apache.hadoop.mapred.$Proxy2.getProtocolVersion(Unknown Source)
    at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:411)
    at org.apache.hadoop.mapred.JobClient.createRPCProxy(JobClient.java:499)
    at org.apache.hadoop.mapred.JobClient.init(JobClient.java:490)
    at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:473)
    at org.apache.hadoop.mapreduce.Job$1.run(Job.java:513)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Unknown Source)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
    at org.apache.hadoop.mapreduce.Job.connect(Job.java:511)
    at org.apache.hadoop.mapreduce.Job.submit(Job.java:499)
    at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:530)
    at org.springframework.data.hadoop.mapreduce.JobExecutor$2.run(JobExecutor.java:197)
    ... 20 more

很明显，用户298790（我的本地Windows机器用户）在群集上无法识别 - 这就是配置中的原因。档案

我在文档中提到的作业配置中指定了user =“bigdata”。
文件。还提到：

SHDP使用当前的标识服从HDFS权限 user（默认情况下）用于与文件系统交互。特别是， HdfsResourceLoader考虑何时进行模式匹配，只考虑它假定要查看但不执行任何特权的文件行动。但是，可以指定不同的用户，这意味着 ResourceLoader使用该用户的权限与HDFS进行交互 - 但是这符合用户假冒规则根据{{3}}，我决定使用 HdfsResourceLoader ，但在文档中找不到任何示例甚至配置 - 任何人都可以提供任何指针吗？

根据api，我认为我需要将我的Windows用户298790添加到远程群集计算机（Ubuntu）用户的组以及我的Windows主机名，如果没有大号，我认为这是不可行的。用户和更改Windows客户端计算机。如果我的假设是正确的，可以采取哪些措施来避免添加和配置所有这些用户？

/ 将更改添加到core-site.xml /

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

<property>
<name>fs.default.name</name>
<value>hdfs://cloudx-843-770:9000</value>
</property>

<property>
<name>hadoop.proxyuser.298790.groups</name>
<value>bigdata</value>
<description>Allow the superuser bigdatato impersonate any members of the group bigdata</description>
</property>

<property>
<name>hadoop.proxyuser.298790.hosts</name>
<value>*</value>
<description>The superuser can connect only from INFVA03351 to impersonate a user</description>
</property>

</configuration>

我重新启动了所有Hadoop进程，但错误仍然存在。

然后，我决定创建一个新用户即。 298790在远程Ubuntu机器上，并将其添加到组bigdata用于模拟目的：

    root@cloudx-843-770:/home/bigdata# useradd -G bigdata 298790
    root@cloudx-843-770:/home/bigdata#
    root@cloudx-843-770:/home/bigdata#
    root@cloudx-843-770:/home/bigdata# usermod -G bigdata 298790
    root@cloudx-843-770:/home/bigdata#
    root@cloudx-843-770:/home/bigdata# su 298790
    $ groups
    298790 bigdata
root@cloudx-843-770:/home/bigdata#
root@cloudx-843-770:/home/bigdata# cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
libuuid:x:100:101::/var/lib/libuuid:/bin/sh
syslog:x:101:103::/home/syslog:/bin/false
mysql:x:102:105:MySQL Server,,,:/nonexistent:/bin/false
messagebus:x:103:106::/var/run/dbus:/bin/false
whoopsie:x:104:107::/nonexistent:/bin/false
landscape:x:105:110::/var/lib/landscape:/bin/false
sshd:x:106:65534::/var/run/sshd:/usr/sbin/nologin
tomcat6:x:107:113::/usr/share/tomcat6:/bin/false
coesystem:x:1000:1000:coesystem,,,:/home/coesystem:/bin/bash
hpcc:x:999:1001:hpcc Runtime User:/home/hpcc:/bin/sh
hduser:x:1001:1002:hduser,1,1,1,1:/home/hduser:/bin/bash
bigdata:x:1002:1003:Big Data,1,1,1,1:/home/bigdata:/bin/bash
298790:x:1003:1004::/home/298790:/bin/sh

但是现在当我尝试停止（然后启动）群集时，它会要求所有进程的密码：

bigdata@cloudx-843-770:~/hadoop_ecosystem/apache_hadoop/hadoop-1.1.2/bin$ stop-all.sh
Warning: $HADOOP_HOME is deprecated.

stopping jobtracker
bigdata@localhost's password:
localhost: stopping tasktracker
stopping namenode
bigdata@localhost's password:
localhost: stopping datanode
bigdata@localhost's password:
localhost: stopping secondarynamenode

现在错误略有修改 - 它首先无法连接然后模拟：

Aug 22, 2013 5:14:17 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@922804: startup date [Thu Aug 22 17:14:17 IST 2013]; root of context hierarchy
Aug 22, 2013 5:14:17 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [com/hadoop/basics/applicationContext.xml]
Aug 22, 2013 5:14:17 PM org.springframework.core.io.support.PropertiesLoaderSupport loadProperties
INFO: Loading properties file from class path resource [resources/hadoop.properties]
Aug 22, 2013 5:14:17 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7c197e: defining beans [org.springframework.context.support.PropertySourcesPlaceholderConfigurer#0,hadoopConfiguration,wc-job,myjobs-runner,resourceLoader]; root of factory hierarchy
Aug 22, 2013 5:14:18 PM org.springframework.data.hadoop.mapreduce.JobExecutor$2 run
INFO: Starting job [wc-job]
Aug 22, 2013 5:14:20 PM org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
INFO: Retrying connect to server: cloudx-843-770/172.25.37.135:9001. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
Aug 22, 2013 5:14:22 PM org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
INFO: Retrying connect to server: cloudx-843-770/172.25.37.135:9001. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
Aug 22, 2013 5:14:24 PM org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
INFO: Retrying connect to server: cloudx-843-770/172.25.37.135:9001. Already tried 2 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
Aug 22, 2013 5:14:26 PM org.apache.hadoop.ipc.Client$Connection handleConnectionFailure
INFO: Retrying connect to server: cloudx-843-770/172.25.37.135:9001. Already tried 3 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
Aug 22, 2013 5:14:36 PM org.apache.hadoop.security.UserGroupInformation doAs
SEVERE: PriviledgedActionException as:bigdata via 298790 cause:org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
Aug 22, 2013 5:14:36 PM org.springframework.data.hadoop.mapreduce.JobExecutor$2 run
WARNING: Cannot start job [wc-job]
org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
    at org.apache.hadoop.ipc.Client.call(Client.java:1107)
    at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229)
    at org.apache.hadoop.mapred.$Proxy2.getProtocolVersion(Unknown Source)
    at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:411)
    at org.apache.hadoop.mapred.JobClient.createRPCProxy(JobClient.java:499)
    at org.apache.hadoop.mapred.JobClient.init(JobClient.java:490)
    at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:473)
    at org.apache.hadoop.mapreduce.Job$1.run(Job.java:513)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Unknown Source)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
    at org.apache.hadoop.mapreduce.Job.connect(Job.java:511)
    at org.apache.hadoop.mapreduce.Job.submit(Job.java:499)
    at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:530)
    at org.springframework.data.hadoop.mapreduce.JobExecutor$2.run(JobExecutor.java:197)
    at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:49)
    at org.springframework.data.hadoop.mapreduce.JobExecutor.startJobs(JobExecutor.java:168)
    at org.springframework.data.hadoop.mapreduce.JobExecutor.startJobs(JobExecutor.java:160)
    at org.springframework.data.hadoop.mapreduce.JobRunner.call(JobRunner.java:52)
    at org.springframework.data.hadoop.mapreduce.JobRunner.afterPropertiesSet(JobRunner.java:44)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:197)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:172)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:158)
    at com.hadoop.basics.WordCounter.main(WordCounter.java:58)

Aug 22, 2013 5:14:36 PM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons
INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@7c197e: defining beans [org.springframework.context.support.PropertySourcesPlaceholderConfigurer#0,hadoopConfiguration,wc-job,myjobs-runner,resourceLoader]; root of factory hierarchy
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myjobs-runner': Invocation of init method failed; nested exception is java.lang.IllegalStateException: org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1482)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:628)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:197)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:172)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:158)
    at com.hadoop.basics.WordCounter.main(WordCounter.java:58)
Caused by: java.lang.IllegalStateException: org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
    at org.springframework.data.hadoop.mapreduce.JobExecutor$2.run(JobExecutor.java:209)
    at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:49)
    at org.springframework.data.hadoop.mapreduce.JobExecutor.startJobs(JobExecutor.java:168)
    at org.springframework.data.hadoop.mapreduce.JobExecutor.startJobs(JobExecutor.java:160)
    at org.springframework.data.hadoop.mapreduce.JobRunner.call(JobRunner.java:52)
    at org.springframework.data.hadoop.mapreduce.JobRunner.afterPropertiesSet(JobRunner.java:44)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479)
    ... 13 more
Caused by: org.apache.hadoop.ipc.RemoteException: User: 298790 is not allowed to impersonate bigdata
    at org.apache.hadoop.ipc.Client.call(Client.java:1107)
    at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:229)
    at org.apache.hadoop.mapred.$Proxy2.getProtocolVersion(Unknown Source)
    at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:411)
    at org.apache.hadoop.mapred.JobClient.createRPCProxy(JobClient.java:499)
    at org.apache.hadoop.mapred.JobClient.init(JobClient.java:490)
    at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:473)
    at org.apache.hadoop.mapreduce.Job$1.run(Job.java:513)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Unknown Source)
    at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
    at org.apache.hadoop.mapreduce.Job.connect(Job.java:511)
    at org.apache.hadoop.mapreduce.Job.submit(Job.java:499)
    at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:530)
    at org.springframework.data.hadoop.mapreduce.JobExecutor$2.run(JobExecutor.java:197)
    ... 20 more

Answer 1

如果您希望将用户模仿为另一个用户，那么Apache Hadoop要求您的服务端配置允许这样做。

这意味着，如果您以“foo”运行，并且想要将作业实际提交为“bar”，则NameNode / JobTracker要求其加载的core-site.xml配置允许“foo”代理其他用户，通常类似下面的内容必须出现在NameNode的/ JobTracker的core-site.xml中：

<property>
  <name>hadoop.proxyuser.foo.groups</name>
  <value>*</value>
</property>

<property>
  <name>hadoop.proxyuser.foo.hosts</name>
  <value>*</value>
</property>

这将允许用户foo模仿任何其他用户（*表示组），并在从任何主机（*为主机）提交时这样做。

虽然它不是必需，但绝对建议定义的用户和组需要存在于NameNode上，以便以适当的方式工作，例如权限，组解析等。更多相关内容：http://www.cloudera.com/blog/2012/03/authorization-and-authentication-in-hadoop/

http://static.springsource.org/spring-hadoop/docs/1.0.x/reference/html/security.html#security:kerberos处的文件可以更清楚地解决这个问题。

Spring数据 - hadoop连接

1 个答案: