[jira] [Issue Comment Deleted] (SPARK-28881) toPandas with Arrow returns an empty DataFrame when the result size exceeds `spark.driver.maxResultSize`

["Hyukjin Kwon (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-28881?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon updated SPARK-28881:
---------------------------------
    Comment: was deleted

(was: It should fail. The issue here is that it doesn't fail but returns partial or empty results.)

> toPandas with Arrow returns an empty DataFrame when the result size exceeds `spark.driver.maxResultSize`
> --------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-28881
>                 URL: https://issues.apache.org/jira/browse/SPARK-28881
>             Project: Spark
>          Issue Type: Test
>          Components: PySpark, SQL
>    Affects Versions: 2.3.3, 2.4.0, 2.4.1, 2.4.2, 2.4.3
>            Reporter: Hyukjin Kwon
>            Priority: Major
>
> {code}
> ./bin/pyspark --conf spark.driver.maxResultSize=1m
> spark.conf.set("spark.sql.execution.arrow.enabled",True)
> spark.range(10000000).toPandas()
> {code}
> The codes above returns an empty dataframe in Spark 2.4.
> This is a regression between Spark 2.3 and 2.4.
> This JIRA targets to add a regression test.
> In Spark 2.4:
> {code}
> ./bin/pyspark --conf spark.driver.maxResultSize=1m
> spark.conf.set("spark.sql.execution.arrow.enabled",True)
> spark.range(10000000).toPandas()
> {code}
> {code}
> Empty DataFrame
> Columns: [id]
> Index: []
> {code}
> or it can return partial results:
> {code}
> ./bin/pyspark --conf spark.driver.maxResultSize=1m
> spark.conf.set("spark.sql.execution.arrow.enabled", True)
> spark.range(0, 330000, 1, 100).toPandas()
> {code}
> {code}
> ...
> 75897  75897
> 75898  75898
> 75899  75899
> [75900 rows x 1 columns]
> {code}



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