Java dfs.data.dir中的目录无效：无法将路径：\tmp\hadoop user\dfs\data的权限设置为0755_Java_Eclipse_Hadoop_Cygwin

Java dfs.data.dir中的目录无效：无法将路径：\tmp\hadoop user\dfs\data的权限设置为0755

java eclipse hadoop cygwin

Java dfs.data.dir中的目录无效：无法将路径：\tmp\hadoop user\dfs\data的权限设置为0755,java,eclipse,hadoop,cygwin,Java,Eclipse,Hadoop,Cygwin,我不熟悉hadoop框架，目前正在使用Windows7中的cygwin、hadoop-0.19.1、eclipse-3.3.1（Europa）处理大数据项目。现在我正在尝试从hadoop-0.19.1更改为hadoop-1.2.1版本 core-site.xml： <?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <!-- Put site-speci

我不熟悉hadoop框架，目前正在使用Windows7中的cygwin、hadoop-0.19.1、eclipse-3.3.1（Europa）处理大数据项目。现在我正在尝试从hadoop-0.19.1更改为hadoop-1.2.1版本

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://localhost:9100</value>
  </property>

</configuration>

。我尝试了此github站点的windows修补程序：

它解决了我的问题。但若我试图在eclipse中运行简单的字数计算程序，它会在那个里给我同样的错误：“未能将路径：\tmp\hadoop user\dfs\data的权限设置为0755”

我在谷歌上搜索了很多次，但没有找到任何解决方案

任何人都请帮忙

如前所述更改hdfs-site.xml后

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

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

<configuration>

  <property>
         <name>dfs.replication</name>
         <value>1</value>
     </property>

  <property>
    <name>dfs.name.dir</name>
    <value>C:/cygwin/usr/tmp/hadoop-raj/dfs/logs</value>
 </property>

  <property>
    <name>dfs.data.dir</name>
    <value>c:/cygwin/usr/hadoop-raj/dfs/data</value>
 </property>


  <property>
<name>hadoop.tmp.dir</name>
<value>c:/cygwin/usr/hadoop-raj/dfs/tmp</value>
</property>


</configuration>


dfs.replication
1.
dfs.name.dir
C:/cygwin/usr/tmp/hadoop-raj/dfs/logs
dfs.data.dir
c:/cygwin/usr/hadoop-raj/dfs/data
hadoop.tmp.dir
c:/cygwin/usr/hadoop-raj/dfs/tmp

现在我在tasktracker上发现以下错误

 $ bin/hadoop tasktracker
14/02/08 15:25:22 INFO mapred.TaskTracker: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting TaskTracker
STARTUP_MSG:   host = raj-PC/192.168.42.248
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 1.2.1
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/b                                                                                                                ranch-1.2 -r 1503152; compiled by 'mattf' on Mon Jul 22 15:23:09 PDT 2013
STARTUP_MSG:   java = 1.7.0_45
************************************************************/
14/02/08 15:25:23 INFO impl.MetricsConfig: loaded properties from hadoop-metrics                                                                                                                2.properties
14/02/08 15:25:23 INFO impl.MetricsSourceAdapter: MBean for source MetricsSystem                                                                                                                ,sub=Stats registered.
14/02/08 15:25:23 INFO impl.MetricsSystemImpl: Scheduled snapshot period at 10 s                                                                                                                econd(s).
14/02/08 15:25:23 INFO impl.MetricsSystemImpl: TaskTracker metrics system starte                                                                                                                d
14/02/08 15:25:23 WARN util.NativeCodeLoader: Unable to load native-hadoop libra                                                                                                                ry for your platform... using builtin-java classes where applicable
14/02/08 15:25:23 INFO impl.MetricsSourceAdapter: MBean for source ugi registere                                                                                                                d.
14/02/08 15:25:23 WARN impl.MetricsSystemImpl: Source name ugi already exists!
14/02/08 15:25:23 INFO mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter                                                                                                                (org.mortbay.log) via org.mortbay.log.Slf4jLog
14/02/08 15:25:23 INFO http.HttpServer: Added global filtersafety (class=org.apa                                                                                                                che.hadoop.http.HttpServer$QuotingInputFilter)
14/02/08 15:25:23 INFO mapred.TaskLogsTruncater: Initializing logs' truncater wi                                                                                                                th mapRetainSize=-1 and reduceRetainSize=-1
14/02/08 15:25:23 INFO mapred.TaskTracker: Starting tasktracker with owner as ra                                                                                                                j
14/02/08 15:25:23 INFO mapred.TaskTracker: Good mapred local directories are: /t                                                                                                                mp/hadoop-raj/mapred/local
14/02/08 15:25:23 ERROR mapred.TaskTracker: Can not start task tracker because j                                                                                                                ava.io.IOException: Failed to set permissions of path: \tmp\hadoop-raj\mapred\lo                                                                                                                cal\taskTracker to 0755
        at org.apache.hadoop.fs.FileUtil.checkReturnValue(FileUtil.java:691)
        at org.apache.hadoop.fs.FileUtil.setPermission(FileUtil.java:672)
        at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSys                                                                                                                tem.java:514)
        at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.jav                                                                                                                a:349)
        at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:19                                                                                                                3)
        at org.apache.hadoop.mapred.TaskTracker.initialize(TaskTracker.java:823)
        at org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:1573)
        at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3937)

14/02/08 15:25:23 INFO mapred.TaskTracker: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down TaskTracker at raj-PC/192.168.42.248
************************************************************/

$bin/hadoop任务跟踪器
14/02/08 15:25:22信息映射。任务跟踪器：启动\u消息：
/************************************************************
启动消息：正在启动TaskTracker
启动消息：host=raj PC/192.168.42.248
启动消息：args=[]
启动消息：版本=1.2.1
启动\u消息：生成=https://svn.apache.org/repos/asf/hadoop/common/branches/b                                                                                                                ranch-1.2-r 1503152；由“mattf”于2013年7月22日（星期一）15:23:09编制
启动消息：java=1.7.0\u 45
************************************************************/
14/02/08 15:25:23 INFO impl.MetricsConfig:从hadoop metrics 2.properties加载的属性
14/02/08 15:25:23信息impl.MetricsSourceAdapter:MBean用于源MetricsSystem，sub=Stats registered。
14/02/08 15:25:23信息impl.MetricsSystemImpl：计划的快照周期为10秒。
14/02/08 15:25:23信息实施度量系统实施：TaskTracker度量系统启动
14/02/08 15:25:23警告util.NativeCodeLoader:无法为您的平台加载本机hadoop库。。。在适用的情况下使用内置java类
14/02/08 15:25:23信息impl.MetricsSourceAdapter:MBean用于源ugi注册表d。
14/02/08 15:25:23警告impl.MetricsSystemImpl:源名称ugi已存在！
14/02/08 15:25:23信息mortbay.log：通过org.mortbay.log.slf4jloggeradapter（org.mortbay.log）登录到org.slf4j.impl.Log4jLoggerAdapter（org.mortbay.log）
14/02/08 15:25:23信息http.HttpServer：添加了全局过滤器安全性（class=org.apa che.hadoop.http.HttpServer$QuotingInputFilter）
14/02/08 15:25:23 INFO mapred.TaskLogsTruncater:使用mapRetainSize=-1和reduceRetainSize=-1初始化日志的截断器
14/02/08 15:25:23信息映射。TaskTracker:启动TaskTracker，所有者为ra j
14/02/08 15:25:23 INFO mapred.TaskTracker:Good mapred本地目录是：/t mp/hadoop raj/mapred/local
14/02/08 15:25:23错误映射。任务跟踪器：无法启动任务跟踪器，因为j ava.io.IOException:未能设置路径：\tmp\hadoop raj\mapred\lo的权限cal\taskTracker至0755
位于org.apache.hadoop.fs.FileUtil.checkReturnValue（FileUtil.java:691）
位于org.apache.hadoop.fs.FileUtil.setPermission（FileUtil.java:672）
位于org.apache.hadoop.fs.RawLocalFileSystem.setPermission（RawLocalFileSys tem.java:514）
位于org.apache.hadoop.fs.RawLocalFileSystem.mkdirs（RawLocalFileSystem.java:349）
位于org.apache.hadoop.fs.FilterFileSystem.mkdirs（FilterFileSystem.java:19 3）
位于org.apache.hadoop.mapred.TaskTracker.initialize（TaskTracker.java:823）
位于org.apache.hadoop.mapred.TaskTracker.（TaskTracker.java:1573）
位于org.apache.hadoop.mapred.TaskTracker.main（TaskTracker.java:3937）
14/02/08 15:25:23信息映射。任务跟踪器：关机\u消息：
/************************************************************
关闭消息：关闭raj PC/192.168.42.248上的TaskTracker
************************************************************/

这是一个Cygwin问题。您需要将所有本地目录更改为Cygwin目录，例如

c:/Cygwin/usr/tmp/hadoop-user/dfs/data

一定要这样做

$ bin/hadoop datanode
14/02/07 22:24:09 INFO datanode.DataNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG:   host = raj-PC/101.63.181.80
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 1.2.1
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/b                                                                                                                ranch-1.2 -r 1503152; compiled by 'mattf' on Mon Jul 22 15:23:09 PDT 2013
STARTUP_MSG:   java = 1.7.0_45
************************************************************/
14/02/07 22:24:10 INFO impl.MetricsConfig: loaded properties from hadoop-metrics                                                                                                                2.properties
14/02/07 22:24:10 INFO impl.MetricsSourceAdapter: MBean for source MetricsSystem                                                                                                                ,sub=Stats registered.
14/02/07 22:24:10 INFO impl.MetricsSystemImpl: Scheduled snapshot period at 10 s                                                                                                                econd(s).
14/02/07 22:24:10 INFO impl.MetricsSystemImpl: DataNode metrics system started
14/02/07 22:24:11 INFO impl.MetricsSourceAdapter: MBean for source ugi registere                                                                                                                d.
14/02/07 22:24:11 WARN impl.MetricsSystemImpl: Source name ugi already exists!
14/02/07 22:24:11 WARN util.NativeCodeLoader: Unable to load native-hadoop libra                                                                                                                ry for your platform... using builtin-java classes where applicable
14/02/07 22:24:11 WARN datanode.DataNode: Invalid directory in dfs.data.dir: Fai                                                                                                                led to set permissions of path: \tmp\hadoop-raj\dfs\data to 0755
14/02/07 22:24:11 ERROR datanode.DataNode: All directories in dfs.data.dir are i                                                                                                                nvalid.
14/02/07 22:24:11 INFO datanode.DataNode: Exiting Datanode
14/02/07 22:24:11 INFO datanode.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at raj-PC/101.63.181.80
************************************************************/

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

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

<configuration>

  <property>
         <name>dfs.replication</name>
         <value>1</value>
     </property>

  <property>
    <name>dfs.name.dir</name>
    <value>C:/cygwin/usr/tmp/hadoop-raj/dfs/logs</value>
 </property>

  <property>
    <name>dfs.data.dir</name>
    <value>c:/cygwin/usr/hadoop-raj/dfs/data</value>
 </property>


  <property>
<name>hadoop.tmp.dir</name>
<value>c:/cygwin/usr/hadoop-raj/dfs/tmp</value>
</property>


</configuration>

 $ bin/hadoop tasktracker
14/02/08 15:25:22 INFO mapred.TaskTracker: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting TaskTracker
STARTUP_MSG:   host = raj-PC/192.168.42.248
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 1.2.1
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/b                                                                                                                ranch-1.2 -r 1503152; compiled by 'mattf' on Mon Jul 22 15:23:09 PDT 2013
STARTUP_MSG:   java = 1.7.0_45
************************************************************/
14/02/08 15:25:23 INFO impl.MetricsConfig: loaded properties from hadoop-metrics                                                                                                                2.properties
14/02/08 15:25:23 INFO impl.MetricsSourceAdapter: MBean for source MetricsSystem                                                                                                                ,sub=Stats registered.
14/02/08 15:25:23 INFO impl.MetricsSystemImpl: Scheduled snapshot period at 10 s                                                                                                                econd(s).
14/02/08 15:25:23 INFO impl.MetricsSystemImpl: TaskTracker metrics system starte                                                                                                                d
14/02/08 15:25:23 WARN util.NativeCodeLoader: Unable to load native-hadoop libra                                                                                                                ry for your platform... using builtin-java classes where applicable
14/02/08 15:25:23 INFO impl.MetricsSourceAdapter: MBean for source ugi registere                                                                                                                d.
14/02/08 15:25:23 WARN impl.MetricsSystemImpl: Source name ugi already exists!
14/02/08 15:25:23 INFO mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter                                                                                                                (org.mortbay.log) via org.mortbay.log.Slf4jLog
14/02/08 15:25:23 INFO http.HttpServer: Added global filtersafety (class=org.apa                                                                                                                che.hadoop.http.HttpServer$QuotingInputFilter)
14/02/08 15:25:23 INFO mapred.TaskLogsTruncater: Initializing logs' truncater wi                                                                                                                th mapRetainSize=-1 and reduceRetainSize=-1
14/02/08 15:25:23 INFO mapred.TaskTracker: Starting tasktracker with owner as ra                                                                                                                j
14/02/08 15:25:23 INFO mapred.TaskTracker: Good mapred local directories are: /t                                                                                                                mp/hadoop-raj/mapred/local
14/02/08 15:25:23 ERROR mapred.TaskTracker: Can not start task tracker because j                                                                                                                ava.io.IOException: Failed to set permissions of path: \tmp\hadoop-raj\mapred\lo                                                                                                                cal\taskTracker to 0755
        at org.apache.hadoop.fs.FileUtil.checkReturnValue(FileUtil.java:691)
        at org.apache.hadoop.fs.FileUtil.setPermission(FileUtil.java:672)
        at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSys                                                                                                                tem.java:514)
        at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.jav                                                                                                                a:349)
        at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:19                                                                                                                3)
        at org.apache.hadoop.mapred.TaskTracker.initialize(TaskTracker.java:823)
        at org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:1573)
        at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3937)

14/02/08 15:25:23 INFO mapred.TaskTracker: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down TaskTracker at raj-PC/192.168.42.248
************************************************************/