Hadoop 无法打开运算符

我试图在Hadoop上运行Pig拉丁语脚本，但遇到了一个错误：无法为alias result打开terator

现在这不是一个脚本问题，我已经在一个小的测试文件上测试了它，它已经工作了

我感觉它是Reduce函数，因为脚本运行时间超过2小时，然后失败，注意：

成功读取输入，无法生成结果

我也收到了这样的警告：

2015-01-09 09:29:13,320 [main] INFO  org.apache.hadoop.ipc.Client - Retrying connect to server: server:port. Already tried 0 
enter code here
time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=3, sleepTime=1000 MILLISECONDS)
2015-01-09 09:29:14,321 [main] INFO  org.apache.hadoop.ipc.Client - Retrying connect to server: server:port. Already tried 1 
time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=3, sleepTime=1000 MILLISECONDS)
2015-01-09 09:29:15,322 [main] INFO  org.apache.hadoop.ipc.Client - Retrying connect to server: server:port. Already tried 2 
time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=3, sleepTime=1000 MILLISECONDS)
2015-01-09 09:29:15,429 [main] INFO  org.apache.hadoop.mapred.ClientServiceDelegate -
Application state is completed. FinalApplicationStatus=SUCCEEDED. Redirecting to job history server
2015-01-09 09:29:15,847 [main] INFO
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Some
jobs have failed! St
op running all dependent jobs
2015-01-09 09:29:15,854 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1066:Unable to open iterator for alias result

这是什么意思？？FinalAPplicationStatus=成功意味着什么？
非常感谢
有什么想法吗？？？这肯定是有原因的。我注意到它尝试连接最大次数的尝试，也许那部分失败了？当你只给它输入一点点数据时，它是否也需要2个小时才能失败对于那些在这里寻找这篇文章的人来说，这是一个很好的选择。