Thomas Graves created SPARK-38677:
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Summary: pyspark hangs in local mode running rdd map operation
Key: SPARK-38677
URL: https://issues.apache.org/jira/browse/SPARK-38677
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 3.2.1
Reporter: Thomas Graves
In spark 3.2.1 (spark 3.2.0 doesn't show this issue), pyspark will hang when
running and RDD map operations and converting to a dataframe. Code is below to
reproduce.
Env:
spark 3.2.1 local mode, just run {{./bin/pyspark --driver-memory XXXXG
--driver-cores XXXX}}
{{download dataset from here
[https://rapidsai-data.s3.us-east-2.amazonaws.com/spark/mortgage.zip]}}
{{just 200000 rows could reproduce the issue }}{{head -n 200000
mortgage_eval_merged.csv > mortgage_eval_merged-small.csv}}{{{} but if the
input dataset is small, such 50000 rows, it works well.{}}}{{{}{}}}run codes
below:
{code:java}
path = "/XXXX/mortgage_eval_merged-small.csv" src_data =
sc.textFile(path).map(lambda x:x.split(",")) column_list =
['c1','c2','c3','c4','c5','c6','c7','c8','c9','c10','c11','c12','c13','c14','c15','c16','c17','c18','c19','c20','c21','c22','c23','c24','c25','c26','c27','c28']
df = spark.createDataFrame(src_data,column_list) print(df.show(1)){code}
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