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运行hadoop程序,hbase卡在htable声明中(running hadoop program with hbase stuck at htable declaration)

我正在实现需要hbase的hadoop程序。 我正在使用Hadoop 2.5.1和HBase 0.20.6(我第一次使用0.94.8但面对问题之后我只是尝试更改为0.20.6,因为我原始源代码的文档告诉我,遗憾的是没有解决问题。)

使用'javac'编译代码并运行jar文件后,作业停留在地图67%(基于输入的百分比变化)。

https://dl.dropboxusercontent.com/u/51053996/Pics/map_stuck.jpg

我尝试通过注释代码的一部分来调查问题,并发现HTable启动在某种程度上是行。

https://dl.dropboxusercontent.com/u/51053996/Pics/htable.jpg

还有一些线索我不知道它涉及与否:

  • 当我尝试使用'sudo'运行“hadoop jar ...”时的权限问题(但是,我通过发出一些命令来解决这个问题,例如“sudo -u hduser hadoop fs -chown ...和-chmod ...”)

    https://dl.dropboxusercontent.com/u/51053996/Pics/hbase_permission.jpg
    
  • 在start-hbase之后运行的'jps':我需要发出'sudo jps'以便我可以看到H ..进程(如果不是我将只看到hadoops')并且在运行hadoop之后某些进程如HMaster消失了。

    https://dl.dropboxusercontent.com/u/51053996/Pics/jps.jpg  
    

任何帮助将非常感激 :)


I'm implementing hadoop program which requires hbase. I'm using Hadoop 2.5.1 and HBase 0.20.6 (I first used 0.94.8 but after facing the problem I just try changing to 0.20.6 because the document of my original source code tell me, unfortunately that didn't solve the problem.)

After compiling the code using 'javac' and running the jar file, the jobs stuck at map 67% (the % changing based on the inputs).

https://dl.dropboxusercontent.com/u/51053996/Pics/map_stuck.jpg

I tried investigate the problem by commenting parts of the code and find out that the HTable initiation is somehow the line.

https://dl.dropboxusercontent.com/u/51053996/Pics/htable.jpg

There are still some clues that I have no idea it involve or not:

  • The permission problem when I tried running "hadoop jar ..." by using 'sudo' (however, I had fixed this by issued some commands like "sudo -u hduser hadoop fs -chown ... and -chmod ...)

    https://dl.dropboxusercontent.com/u/51053996/Pics/hbase_permission.jpg
    
  • The 'jps' running after start-hbase: I need to issue 'sudo jps' so that I can see the H.. processes (if not I will see only the hadoops') and after running hadoop some processes such as HMaster disappears.

    https://dl.dropboxusercontent.com/u/51053996/Pics/jps.jpg  
    

Any help would be really appreciated :)


原文:https://stackoverflow.com/questions/28831564
更新时间:2021-09-09 15:09

最满意答案

PHP脚本与通过FTP登录的用户不同。

使用另一个php脚本更改文件的permisions或通过SSH以root身份登录。


PHP script is a different user than the one that is logging in through FTP.

Either change the permisions of the file using another php script or log in as root through SSH.

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