在HDFS上找不到Oozie作业配置应用程序目录

Question

我在我的Linux机器上安装了一个伪分布式的Cloudera版本,并成功运行了一些简单的MapReduce示例.但是,我正试图让Oozie工作,并且在尝试执行简单的工作流程时我遇到的错误完全让我感到困惑:

tim@phocion:~$ oozie version
Oozie client build version: 3.1.3-cdh4.0.1

根据文档将预打包的示例复制到HDFS并执行:

tim@phocion:~$ oozie job -oozie http://phocion:11000/oozie -config /user/tim/examples/apps/map-reduce/job.properties -run
Error: E0504 : E0504: App directory [hdfs://phocion:8020/user/tim/examples/apps/map-reduce] does not exist

检查文件是否存在:

tim@phocion:~$ hdfs dfs -ls /user/tim/examples/apps/map-reduce
Found 3 items
-rwxr-xr-x   1 tim tim        995 2012-10-03 14:47 /user/tim/examples/apps/map-reduce/job.properties
drwxrwxr-x   - tim tim       4096 2012-10-03 14:47 /user/tim/examples/apps/map-reduce/lib
-rwxr-xr-x   1 tim tim       2559 2012-10-03 14:47 /user/tim/examples/apps/map-reduce/workflow.xml

确实如此.我可以连接到phocion:8020吗？

tim@phocion:~$ telnet phocion 8020
Trying 127.0.1.1...
Connected to phocion.
Escape character is '^]'.

我可以.所以,基本上,我完全不知道这个错误试图告诉我什么 - 该文件夹确实存在.我假设错误太模糊,无法完全传达问题所在,但我发现几乎没有什么可以指出我正确的方向.

我也可以使用其他第三方教程复制此错误.

花了很多时间倾注配置文件到不想再看电脑的程度.也许我在这里思考这个问题,但任何帮助都会非常感激.

编辑:添加完整的job.properties(与默认值没有太大区别):

nameNode=hdfs://phocion:8020
jobTracker=phocion:8021
queueName=default
examplesRoot=examples
oozie.wf.application.path=${nameNode}/user/${user.name}/${examplesRoot}/apps/map-reduce
outputDir=map-reduce

更多编辑:当文件夹不存在时,我得到相同的确切错误,并在我把它放回到hdfs之后.最后一个想法,它的权限问题,chmod 777仍然得到相同的错误.在命令行上传递的完整HDFS路径无法解决问题.在oozie甚至root帐户下运行它不起作用:

tim@phocion:~$ oozie job -oozie http://phocion:11000/oozie -run -config /home/tim/examples/apps/map-reduce/job.properties -Doozie.wf.application.path=hdfs://phocion:8020/user/tim/examples/apps/map-reduce
Error: E0504 : E0504: App directory [hdfs://phocion:8020/user/tim/examples/apps/map-reduce] does not exist
tim@phocion:~$ hdfs dfs -put examples/ /user/tim/
12/10/04 13:26:43 INFO util.NativeCodeLoader: Loaded the native-hadoop library
tim@phocion:~$ oozie job -oozie http://phocion:11000/oozie -run -config /home/tim/examples/apps/map-reduce/job.properties -Doozie.wf.application.path=hdfs://phocion:8020/user/tim/examples/apps/map-reduce
Error: E0504 : E0504: App directory [hdfs://phocion:8020/user/tim/examples/apps/map-reduce] does not exist
tim@phocion:~$ hdfs dfs -chmod -R 777 /user/tim/examples/
12/10/04 13:28:16 INFO util.NativeCodeLoader: Loaded the native-hadoop library
tim@phocion:~$ oozie job -oozie http://phocion:11000/oozie -run -config /home/tim/examples/apps/map-reduce/job.properties -Doozie.wf.application.path=hdfs://phocion:8020/user/tim/examples/apps/map-reduce
Error: E0504 : E0504: App directory [hdfs://phocion:8020/user/tim/examples/apps/map-reduce] does not exist
tim@phocion:~$ sudo -u oozie oozie job -oozie http://phocion:11000/oozie -run -config /home/tim/examples/apps/map-reduce/job.properties -Doozie.wf.application.path=hdfs://phocion:8020/user/tim/examples/apps/map-reduce
[sudo] password for tim: 
Error: E0504 : E0504: App directory [hdfs://phocion:8020/user/tim/examples/apps/map-reduce] does not exist
tim@phocion:~$ sudo -u root oozie job -oozie http://phocion:11000/oozie -run -config /home/tim/examples/apps/map-reduce/job.properties -Doozie.wf.application.path=hdfs://phocion:8020/user/tim/examples/apps/map-reduce
Error: E0504 : E0504: App directory [hdfs://phocion:8020/user/tim/examples/apps/map-reduce] does not exist

该命令应该在理论上有效吗？

tim@phocion:~$ hdfs dfs -ls hdfs://phocion:8020/user/tim/examples/apps/map-reduce
ls: `hdfs://phocion:8020/user/tim/examples/apps/map-reduce': No such file or directory

这在执行oozie命令后显示在hadoop-hdfs日志中:

2012-10-04 13:50:00,152 INFO org.apache.hadoop.hdfs.server.namenode.FSEditLog: Starting log segment at 113297
2012-10-04 13:50:00,874 INFO org.apache.hadoop.hdfs.server.namenode.TransferFsImage: Opening connection to http://localhost.localdomain:50090/getimage?getimage=1&txid=113296&storageInfo=-40:2092007576:0:cluster8
2012-10-04 13:50:00,875 ERROR org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException as:hdfs (auth:SIMPLE) cause:java.net.ConnectException: Connection refused
2012-10-04 13:50:00,876 WARN org.mortbay.log: /getimage: java.io.IOException: GetImage failed. java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
        at java.net.Socket.connect(Socket.java:529)
        at java.net.Socket.connect(Socket.java:478)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:163)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:395)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
        at sun.net.www.http.HttpClient.<init>(HttpClient.java:234)
        at sun.net.www.http.HttpClient.New(HttpClient.java:307)
        at sun.net.www.http.HttpClient.New(HttpClient.java:324)
        at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:970)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:911)
        at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:836)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1172)

Answer 1

除了 HarshJ 的评论之外，请检查您的错误消息：

Error: E0504 : E0504: App directory [hdfs://phocion:8020/user/tim/examples/apps/demo] does not exist

以及您提供的 hadoop fs -ls 列表：

/user/tim/examples/apps/map-reduce/

并玩找不同的游戏：

/user/tim/examples/apps/demo
/user/tim/examples/apps/map-reduce/

尝试如下配置：

oozie.wf.application.path=/user/tim/examples/apps/map-reduce