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Re: Too many fetch-failures
Thanks Harsh.
Problem is resolved. Entry of one of the datanodes was missing from /etc/hosts. After adding the entry, job finished without any problem.
Regards,
Ajay Srivastava
On 04-Dec-2012, at 2:50 AM, Harsh J wrote:

> What version/distribution of Hadoop is this?
>
> On Mon, Dec 3, 2012 at 10:51 PM, Ajay Srivastava
> <[EMAIL PROTECTED]> wrote:
>> Hi,
>>
>> I am getting following errors -
>>
>> 12/12/03 17:11:42 INFO mapred.JobClient: Task Id : attempt_201212031650_0001_m_000011_0, Status : FAILED
>> Too many fetch-failures
>> attempt_201212031650_0001_m_000011_0: WARNING: org.apache.hadoop.metrics.jvm.EventCounter is deprecated. Please use org.apache.hadoop.log.metrics.EventCounter in all the log4j.properties files.
>> 12/12/03 17:11:47 INFO mapred.JobClient:  map 99% reduce 24%
>> 12/12/03 17:12:04 INFO mapred.JobClient:  map 99% reduce 32%
>> 12/12/03 17:12:07 INFO mapred.JobClient:  map 99% reduce 33%
>> 12/12/03 17:12:13 INFO mapred.JobClient:  map 99% reduce 34%
>> 12/12/03 17:12:22 INFO mapred.JobClient:  map 99% reduce 35%
>> 12/12/03 17:12:28 INFO mapred.JobClient:  map 99% reduce 36%
>> 12/12/03 17:12:29 INFO mapred.JobClient:  map 100% reduce 36%
>> 12/12/03 17:12:39 INFO mapred.JobClient:  map 100% reduce 37%
>> 12/12/03 17:12:46 INFO mapred.JobClient:  map 100% reduce 38%
>> 12/12/03 17:12:55 INFO mapred.JobClient:  map 100% reduce 39%
>> 12/12/03 17:13:08 INFO mapred.JobClient:  map 100% reduce 40%
>> 12/12/03 17:13:23 INFO mapred.JobClient:  map 100% reduce 41%
>> 12/12/03 17:13:59 INFO mapred.JobClient: Task Id : attempt_201212031650_0001_m_000012_0, Status : FAILED
>> Too many fetch-failures
>> attempt_201212031650_0001_m_000012_0: WARNING: org.apache.hadoop.metrics.jvm.EventCounter is deprecated. Please use org.apache.hadoop.log.metrics.EventCounter in all the log4j.properties files.
>> 12/12/03 17:14:04 INFO mapred.JobClient:  map 99% reduce 41%
>>
>> I see following error in task tracker log :-
>>
>> 2012-12-03 17:09:40,969 INFO org.apache.hadoop.mapred.TaskTracker.clienttrace: src: 192.168.156.22:50060, dest: 192.168.156.22:42666, bytes: 131072, op: MAPRED_SHUFFLE, cliID: attempt_201212031650_0001_m_000166_0, duration: 3343330
>> 2012-12-03 17:09:40,970 ERROR org.mortbay.log: /mapOutput
>> java.lang.IllegalStateException: Committed
>>        at org.mortbay.jetty.Response.resetBuffer(Response.java:1023)
>>        at org.mortbay.jetty.Response.sendError(Response.java:240)
>>        at org.apache.hadoop.mapred.TaskTracker$MapOutputServlet.doGet(TaskTracker.java:3627)
>>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
>>        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
>>        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
>>        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
>>        at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:816)
>>        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>>
>> What could be the reason behind it ? The job should have finished in 10 min. but it's going on and on for hours.
>>
>>
>> Regards,
>> Ajay Srivastava
>>
>>
>>
>
>
>
> --
> Harsh J