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https://issues.apache.org/jira/browse/PIG-766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12699026#action_12699026
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Santhosh Srinivasan commented on PIG-766:
-----------------------------------------
You can specify the I/O sort buffer size on the command line as:
java -Dio.sort.mb=200 -cp pig.jar:/<path_to_hadoop_site.xml>
Reference: http://hadoop.apache.org/core/docs/current/hadoop-default.html
> ava.lang.OutOfMemoryError: Java heap space
> ------------------------------------------
>
> Key: PIG-766
> URL: https://issues.apache.org/jira/browse/PIG-766
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.2.0
> Environment: Hadoop-0.18.3 (cloudera RPMs).
> mapred.child.java.opts=-Xmx1024m
> Reporter: Vadim Zaliva
>
> My pig script always fails with the following error:
> 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 java.io.FilterOutputStream.write(FilterOutputStream.java:80)
> at
> org.apache.pig.data.DataReaderWriter.writeDatum(DataReaderWriter.java:213)
> at org.apache.pig.data.DefaultTuple.write(DefaultTuple.java:291)
> at
> org.apache.pig.data.DefaultAbstractBag.write(DefaultAbstractBag.java:233)
> at
> org.apache.pig.data.DataReaderWriter.writeDatum(DataReaderWriter.java:162)
> at org.apache.pig.data.DefaultTuple.write(DefaultTuple.java:291)
> at
> org.apache.pig.impl.io.PigNullableWritable.write(PigNullableWritable.java:83)
> at
> org.apache.hadoop.io.serializer.WritableSerialization$WritableSerializer.serialize(WritableSerialization.java:90)
> at
> org.apache.hadoop.io.serializer.WritableSerialization$WritableSerializer.serialize(WritableSerialization.java:77)
> at org.apache.hadoop.mapred.IFile$Writer.append(IFile.java:156)
> at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.spillSingleRecord(MapTask.java:857)
> at
> org.apache.hadoop.mapred.MapTask$MapOutputBuffer.collect(MapTask.java:467)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce$Map.collect(PigMapReduce.java:101)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.runPipeline(PigMapBase.java:219)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:208)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce$Map.map(PigMapReduce.java:86)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:227)
> at
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2198)
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