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https://issues.apache.org/jira/browse/PIG-3251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13608030#comment-13608030
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Daniel Dai commented on PIG-3251:
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Makes sense, we shall move to the new approach for Hadoop 1.1.0+, use
Bzip2TextInputFormat otherwise for backward compatibility.
> Bzip2TextInputFormat requires double the memory of maximum record size
> ----------------------------------------------------------------------
>
> Key: PIG-3251
> URL: https://issues.apache.org/jira/browse/PIG-3251
> Project: Pig
> Issue Type: Improvement
> Reporter: Koji Noguchi
> Assignee: Koji Noguchi
> Priority: Minor
> Attachments: pig-3251-trunk-v01.patch, pig-3251-trunk-v02.patch
>
>
> While looking at user's OOM heap dump, noticed that pig's
> Bzip2TextInputFormat consumes memory at both
> Bzip2TextInputFormat.buffer (ByteArrayOutputStream)
> and actual Text that is returned as line.
> For example, when having one record with 160MBytes, buffer was 268MBytes and
> Text was 160MBytes.
> We can probably eliminate one of them.
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