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From "SRIKANTH KOMMINENI (RIT Student)" <sxk7...@rit.edu>
Subject Re: unable to resolve the heap space error even when running the examples
Date Thu, 12 Apr 2012 15:56:54 GMT
The following is the error that i get


 bin/hadoop jar hadoop-examples-*.jar grep input output 'dfs[a-z.]+'
12/04/11 23:52:50 INFO util.NativeCodeLoader: Loaded the native-hadoop
library
12/04/11 23:52:50 WARN mapred.JobClient: No job jar file set.  User classes
may not be found. See JobConf(Class) or JobConf#setJar(String).
12/04/11 23:52:50 WARN snappy.LoadSnappy: Snappy native library not loaded
12/04/11 23:52:50 INFO mapred.FileInputFormat: Total input paths to process
: 7
12/04/11 23:52:51 INFO mapred.JobClient: Running job: job_local_0001
12/04/11 23:52:51 INFO util.ProcessTree: setsid exited with exit code 0
12/04/11 23:52:51 INFO mapred.Task:  Using ResourceCalculatorPlugin :
org.apache.hadoop.util.LinuxResourceCalculatorPlugin@59a34
12/04/11 23:52:51 INFO mapred.MapTask: numReduceTasks: 1
12/04/11 23:52:51 INFO mapred.MapTask: io.sort.mb = 100
12/04/11 23:52:51 WARN mapred.LocalJobRunner: job_local_0001
java.lang.OutOfMemoryError: Java heap space
at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.<init>(MapTask.java:949)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:428)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:372)
at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
12/04/11 23:52:52 INFO mapred.JobClient:  map 0% reduce 0%
12/04/11 23:52:52 INFO mapred.JobClient: Job complete: job_local_0001
12/04/11 23:52:52 INFO mapred.JobClient: Counters: 0
12/04/11 23:52:52 INFO mapred.JobClient: Job Failed: NA
java.io.IOException: Job failed!
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1265)
at org.apache.hadoop.examples.Grep.run(Grep.java:69)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.examples.Grep.main(Grep.java:93)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)


On Thu, Apr 12, 2012 at 10:37 AM, Mapred Learn <mapred.learn@gmail.com>wrote:

> Can u share ur error also ?
>
> Sent from my iPhone
>
> On Apr 12, 2012, at 7:16 AM, Marcos Ortiz <mlortiz@uci.cu> wrote:
>
> Can you show to us the logs of your NN/DN?
>
> On 04/12/2012 03:28 AM, SRIKANTH KOMMINENI (RIT Student) wrote:
>
> Tried that it didn't work for a lot of combinations of values
>
> On Thu, Apr 12, 2012 at 3:25 AM, Mapred Learn < <mapred.learn@gmail.com>
> mapred.learn@gmail.com> wrote:
>
>>  Try exporting HADOOP_HEAPSIZE to bigger value like 1500 (1.5 gb) before
>> running program or change it in hadoop-env.sh
>>
>>  If still gives error, u can try with bigger value.
>>
>> Sent from my iPhone
>>
>> On Apr 12, 2012, at 12:10 AM, "SRIKANTH KOMMINENI (RIT Student)" <<sxk7699@rit.edu>
>> sxk7699@rit.edu> wrote:
>>
>>    Hello,
>>
>>  I have searched a lot and still cant find any solution that can fix my
>> problem.
>>
>>  I am using the the basic downloaded version of hadoop-1.0.2 and I have
>> edited only what has been asked in the setup page of hadoop and I have set
>> it up to work in a pseudo random distributed mode.
>>
>>  My JAVA_HOME is set to /usr/lib/jvm/java-6-sun, I tried editing the
>> heap size in hadoop-env.sh that didn't work. I tried setting the CHILD_OPTS
>> that didn't work, I found that there was another hadoop-env.sh in
>> /etc/hadoop/ as per the recommendations in the mailing
>> list archives that didn't work . I tried increasing the  io.sort.mb
>> that didn't work. I am totally frustrated but it still doesn't work.please
>> help.
>>
>>
>>  --
>> Srikanth Kommineni,
>> Graduate Assistant,
>> Dept of Computer Science,
>> Rochester Institute of Technology.
>>
>>
>>
>>
>>  --
>> Srikanth Kommineni,
>> Graduate Assistant,
>> Dept of Computer Science,
>> Rochester Institute of Technology.
>>
>>
>>
>>
>>  --
>> Srikanth Kommineni,
>> Graduate Assistant,
>> Dept of Computer Science,
>> Rochester Institute of Technology.
>>
>>
>
>
>  --
> Srikanth Kommineni,
> Graduate Assistant,
> Dept of Computer Science,
> Rochester Institute of Technology.
>
>
> --
> Marcos Luis Ortíz Valmaseda (@marcosluis2186)
>  Data Engineer at UCI
>   <http://marcosluis2186.posterous.com>http://marcosluis2186.posterous.com
>
>
>
>  <http://www.uci.cu/>
>
>


-- 
Srikanth Kommineni,
Graduate Assistant,
Dept of Computer Science,
Rochester Institute of Technology.

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