Hadoop, mail # user - Too many fetch-failures

Too many fetch-failures

Ajay Srivastava 2012-12-03, 17:21

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