[
https://issues.apache.org/jira/browse/SPARK-51360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ramakrishna updated SPARK-51360:
--------------------------------
Description:
It looks like Spark's
*numInputRows* is wrongly calculated , it is double the number of records. This
can be very misleading in production scenarios.
Please find the screenshots attached .
I have also zipped the project which reproduces the problem
def insertToDeltaTable(batchDF: Dataset[NewEmployee], batchId: Long): Unit = {
println("batch ID :: "+ batchId)
println("No of records ::: "+ batchDF.count())
batchDF.write.partitionBy("systemId").format("delta").mode("append").save(deltaTablePath)
}
was:
It looks like Spark's
*numInputRows* is wrongly calculated , it is double the number of records. This
can be very misleading in production scenarios.
Please find the screenshots attached .
I have also zipped the project which reproduces the problem
```
def insertToDeltaTable(batchDF: Dataset[NewEmployee], batchId: Long): Unit = {
println("batch ID :: "+ batchId)
println("No of records ::: "+ batchDF.count())
batchDF.write.partitionBy("systemId").format("delta").mode("append").save(deltaTablePath)
}
```
> Spark counts the total no of records twice in forEachBatch
> ----------------------------------------------------------
>
> Key: SPARK-51360
> URL: https://issues.apache.org/jira/browse/SPARK-51360
> Project: Spark
> Issue Type: Bug
> Components: PySpark, SQL
> Affects Versions: 3.5.1
> Reporter: Ramakrishna
> Priority: Critical
> Labels: pull-request-available
>
> It looks like Spark's
> *numInputRows* is wrongly calculated , it is double the number of records.
> This can be very misleading in production scenarios.
>
> Please find the screenshots attached .
>
> I have also zipped the project which reproduces the problem
>
> def insertToDeltaTable(batchDF: Dataset[NewEmployee], batchId: Long): Unit = {
> println("batch ID :: "+ batchId)
> println("No of records ::: "+ batchDF.count())
> batchDF.write.partitionBy("systemId").format("delta").mode("append").save(deltaTablePath)
> }
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