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https://issues.apache.org/jira/browse/SPARK-5225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-5225.
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Resolution: Incomplete
> Support coalesed Input Metrics from different sources
> -----------------------------------------------------
>
> Key: SPARK-5225
> URL: https://issues.apache.org/jira/browse/SPARK-5225
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Kostas Sakellis
> Priority: Major
> Labels: bulk-closed
>
> Currently, If task reads data from more than one block and it is from
> different read methods we ignore the second read method bytes. For example:
> {noformat}
> CoalescedRDD
> |
> Task1
> / | \
> hadoop hadoop cached
> {noformat}
> if Task1 starts reading from the hadoop blocks first, then the input metrics
> for Task1 will only contain input metrics from the hadoop blocks and ignre
> the input metrics from cached blocks. We need to change the way we collect
> input metrics so that it is not a single value but rather a collection of
> input metrics for a task.
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