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Re: How do I get access to the Reporter within Mapper? - Hadoop - [mail # user]
...You can use the Context for incrementing Counter or heartbeat.   On Wed, Feb 24, 2010 at 7:31 AM, Raymond Jennings III <[EMAIL PROTECTED]    Best Regards  Jeff Zhang...
   Author: Jeff Zhang, 2010-02-24, 15:49
Re: Job Tracker questions - Hadoop - [mail # user]
...This is the sample code for get the counters for one specified job ( I have tested it on my cluster).  What you need to change is the jobtracker address and jobID. Remember to put this ...
   Author: Jeff Zhang, 2010-02-24, 02:49
Re: OutOfMemoryError of PIG job (UDF loads big file) - Hadoop - [mail # user]
...Hi Jiang,  you should set property *mapred.child.java.opts* in mapred-site.xml to increase the memeory as following:             mapred.child.java.opts &nb...
   Author: Jeff Zhang, 2010-02-23, 02:13
Re: Identity Reducer - Hadoop - [mail # user]
...I guess you are using org.apache.hadoop.mapreduce.Mapper which is a class for hadoop new API. you can use the org.apache.hadoop.mapred.Mapper which is for old API    On Thu, Feb 11...
   Author: Jeff Zhang, 2010-02-12, 01:19
Re: Doubt about SequenceFile.Writer - Hadoop - [mail # user]
...The SequenceFile is not text file, so you can not see the content by invoking unix command cat. But you can get the text content by using hadoop command : hadoop fs -text    On Sun...
   Author: Jeff Zhang, 2010-02-07, 17:00
Re: Datanode will shut down automatically after it starts - Hadoop - [mail # user]
...It looks like the data node can not connect to the name node. Are you sure the data node and name node use the same version of hadoop ?  On Fri, Feb 5, 2010 at 7:24 AM, gillggx  wr...
   Author: Jeff Zhang, 2010-02-05, 15:41
Re: map side only behavior - Hadoop - [mail # user]
...No, the merge and sort will not happen in mapper task. And each mapper task will generate one output file.    2010/1/29 Gang Luo   �) 8:54:33 上午 [EMAIL PROTECTED]> �) 10:00...
   Author: Jeff Zhang, 2010-01-29, 16:05
Re: Exception happen when start a single node - Hadoop - [mail # user]
...Hi Nachiket,  Thank you for your reply. But I don't think the page you recommend can solve my problem. The problem on your page is try to solve the namespace version incompatibility. Bu...
   Author: Jeff Zhang, 2010-01-29, 14:40
Re: Fileformat query - Hadoop - [mail # user]
...Sorry for my mistake, the idea of writing your own InputFormat seems not a good idea. The cost of getting the line number of each split is a little high.    On Fri, Jan 29, 2010 at...
   Author: Jeff Zhang, 2010-01-29, 01:54
Re: Cleanup Attempt in Map Task - Hadoop - [mail # user]
...One easy way is to increase the timeout by setting mapred.task.timeout in mapred-site.xml    On Thu, Jan 28, 2010 at 5:59 PM, #YONG YONG CHENG#  wrote:     Best Rega...
   Author: Jeff Zhang, 2010-01-28, 10:24
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