OutOfMemoryError while running sort example
-------------------------------------------
Key: HADOOP-1264
URL: https://issues.apache.org/jira/browse/HADOOP-1264
Project: Hadoop
Issue Type: Bug
Components: examples, mapred
Affects Versions: 0.12.3
Environment: Java 1.6.0_01, EC2 cluster with one slave (Linux
domU-12-31-33-00-02-5A 2.6.16-xenU #1 SMP Thu Nov 30 13:48:50 SAST 2006 i686
athlon i386 GNU/Linux)
Reporter: Tom White
The problem is reproducible, and I get this stacktrace:
java.io.IOException: Job failed!
at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:604)
at org.apache.hadoop.examples.Sort.main(Sort.java:115)
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$ProgramDescription.invoke(ProgramDriver.java:71)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:143)
at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2786)
at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:94)
at java.io.DataOutputStream.write(DataOutputStream.java:90)
at org.apache.hadoop.io.BytesWritable.write(BytesWritable.java:138)
at
org.apache.hadoop.mapred.MapTask$MapOutputBuffer.collect(MapTask.java:318)
at
org.apache.hadoop.mapred.lib.IdentityMapper.map(IdentityMapper.java:39)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:48)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:175)
at
org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:1445)
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