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Same Map/Reduce works on command BUT it hanges through Oozie withouth any error msg - HDFS - [mail # user]
...I manually run it in Hadoop. It works.  But as a job i run it through Oozie. The map/reduce hanged withouth No any error msg.  I checked master and datanode.  ===> From the...
   Author: yaotian, 2013-01-26, 06:43
Help. Strange thing. It's block me 1 week.... - HDFS - [mail # user]
...Hi,  *=>My machine environment:* 1 master 1 CPU core, 2G Mhz, 1G Memory 2 Slaves(datanode): 1 CPU core, 2G Mhz, 4G memory hadoop: hadoop-0.20.205.0  *=> My data:* User GPS tr...
   Author: yaotian, 2013-01-18, 03:17
Re: Re: I am running MapReduce on a 30G data on 1master/2 slave, but failed. - HDFS - [mail # user]
...Thanks. I will read that document. I am new on this. So i attach the log here for help. I can't understand this information.  These log from tasktrack log file:  2013-01-15 08:00:4...
   Author: yaotian, 2013-01-16, 03:23
Re: I am running MapReduce on a 30G data on 1master/2 slave, but failed. - HDFS - [mail # user]
...I set mapred.reduce.tasks from -1 to "AutoReduce" And the hadoop created 450 tasks for Map. But 1 task for Reduce. It seems that this reduce only run on 1 slave (I have two slaves).  Bu...
   Author: yaotian, 2013-01-15, 08:34
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