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https://issues.apache.org/jira/browse/PIG-4542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14541094#comment-14541094
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liyunzhang_intel commented on PIG-4542:
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[~mohitsabharwal]:
For PIG-4542.3.patch:+1
> OutputConsumerIterator should flush buffered records
> ----------------------------------------------------
>
> Key: PIG-4542
> URL: https://issues.apache.org/jira/browse/PIG-4542
> Project: Pig
> Issue Type: Sub-task
> Components: spark
> Affects Versions: spark-branch
> Reporter: Mohit Sabharwal
> Assignee: Mohit Sabharwal
> Fix For: spark-branch
>
> Attachments: PIG-4542.1.patch, PIG-4542.2.patch, PIG-4542.3.patch,
> PIG-4542.patch
>
>
> Certain operators may buffer the output. We need to flush the last set of
> records from such operators, when we encounter the last input record, before
> calling getNextTuple() for the last time.
> Currently, to flush the last set of records, we compute RDD.count() and
> compare the count with a running counter to determine if we have reached the
> last record. This is an unnecessary and inefficient.
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