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https://issues.apache.org/jira/browse/TEZ-3769?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rajesh Balamohan updated TEZ-3769:
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Summary: Unordered: Fix wrong stats being sent out in the last event, when
final merge is disabled (was: Unordered: Fix wrong stats being sent out in the
last event when final merge is disabled)
> Unordered: Fix wrong stats being sent out in the last event, when final merge
> is disabled
> -----------------------------------------------------------------------------------------
>
> Key: TEZ-3769
> URL: https://issues.apache.org/jira/browse/TEZ-3769
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Rajesh Balamohan
>
> When final merge is disabled (without pipelining), wrong stats was sent out
> in the last event.
> It was based on {{numRecordsPerPartition}} which contains the overall
> partition data. It should be ideally be based on the spill result and its
> buffers.
> Also, {{finalSpill}} was unncessarily sending events when no data was present
> (i.e, when currentBuffer didn't have any data). This can be optimized to
> reduce the number of events being sent across.
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