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New posts in apache-spark
use length function in substring in spark
Sep 18, 2022
scala
apache-spark
dataframe
substring
string-length
Convert timestamp to date in Spark dataframe
Feb 14, 2022
python
python-3.x
apache-spark
pyspark
apache-spark-sql
How to find max value in pair RDD?
Nov 16, 2022
scala
apache-spark
pyspark
create substring column in spark dataframe
Feb 04, 2019
scala
apache-spark
spark-dataframe
How to specify schema for CSV file without using Scala case class?
Nov 17, 2022
scala
apache-spark
apache-spark-sql
Why does foreach not bring anything to the driver program?
Sep 13, 2022
apache-spark
Creating a Spark DataFrame from an RDD of lists
Oct 22, 2022
apache-spark
dataframe
pyspark
Spark 2.2 Illegal pattern component: XXX java.lang.IllegalArgumentException: Illegal pattern component: XXX
Feb 11, 2022
scala
apache-spark
spark-dataframe
Spark: run InputFormat as singleton
Jun 04, 2021
database
hadoop
apache-spark
Spark ML indexer cannot resolve DataFrame column name with dots?
Jan 02, 2019
java
apache-spark
apache-spark-mllib
apache-spark-ml
Application attempt appattempt_*** doesn't exist in ApplicationMasterService cache
Jul 31, 2019
apache-spark
How to speed up Spark SQL unit tests?
Sep 17, 2022
unit-testing
testing
apache-spark
apache-spark-sql
Why is Spark performing worse when using Kryo serialization?
Sep 17, 2022
scala
performance
apache-spark
avro
kryo
Spark 1.6: java.lang.IllegalArgumentException: spark.sql.execution.id is already set
Jul 11, 2022
scala
apache-spark
apache-spark-sql
spark-dataframe
Comparison between fasttext and LDA
Sep 17, 2022
facebook
scala
apache-spark
How do you create merge_asof functionality in PySpark?
Sep 17, 2022
python
pandas
apache-spark
pyspark
apache-spark-sql
Spark - java IOException :Failed to create local dir in /tmp/blockmgr*
Jan 04, 2022
hadoop
apache-spark
apache-spark-sql
pyspark using one task for mapPartitions when converting rdd to dataframe
Sep 17, 2022
python
apache-spark
pyspark
apache-spark-sql
Spark is only using one worker machine when more are available
Aug 19, 2022
python
apache-spark
pyspark
If I cache a Spark Dataframe and then overwrite the reference, will the original data frame still be cached?
Sep 17, 2022
python
apache-spark
pyspark
apache-spark-sql
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