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https://issues.apache.org/jira/browse/PIG-4788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15168572#comment-15168572
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Pallavi Rao commented on PIG-4788:
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[~kellyzly], as you mentioned, since the wrappedSplits are used and not
directly the PigSplit, this change may be ok. But, I think we should still
check with pig-dev@ to make sure it has no other impact before making this
change.
The other option I can think of to avoid change to the main codebase is to have
PigSplitSpark class that basically is a copy of PigSplit, but, extends
FileSplit. This class can then be used in PigInputFormatSpark in place of
PigSplit. Yes. there will be redundancy of code, but, it is a safer change.
> the value BytesRead metric info always returns 0 even the length of input
> file is not 0 in spark engine
> -------------------------------------------------------------------------------------------------------
>
> Key: PIG-4788
> URL: https://issues.apache.org/jira/browse/PIG-4788
> Project: Pig
> Issue Type: Sub-task
> Components: spark
> Reporter: liyunzhang_intel
> Assignee: liyunzhang_intel
> Fix For: spark-branch
>
> Attachments: PIG-4788.patch
>
>
> In
> [JobMetricsLinstener#onTaskEnd|https://github.com/apache/pig/blob/spark/src/org/apache/pig/tools/pigstats/spark/SparkJobStats.java#L140],
> taskMetrics.inputMetrics().get().bytesRead() always returns 0 even the
> length of input file is not zero.
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