It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063; I want to submit multiple sql scripts to the transform function that just does spark.sql() over script.Jul 10, 2019 · It's a Spark problem :) When you apply function to Dataframe (or RDD) Spark needs to serialize it and send to all executors. It's not really possible to serialize FastText's code, because part of it is native (in C++). Possible solution would be to save model to disk, then for each spark partition load model from disk and apply it to the data. Cannot create pyspark dataframe on pandas pipelinedRDD. list_of_df = process_pitd_objects (objects) # returns a list of dataframes list_rdd = sc.parallelize (list_of_df) spark_df_list = list_rdd.map (lambda x: spark.createDataFrame (x)).collect () So I have a list of dataframes in python and I want to convert each dataframe to pyspark.Apache Spark. Databricks Runtime 10.4 LTS includes Apache Spark 3.2.1. This release includes all Spark fixes and improvements included in Databricks Runtime 10.3 (Unsupported), as well as the following additional bug fixes and improvements made to Spark: [SPARK-38322] [SQL] Support query stage show runtime statistics in formatted explain mode.For more information, see SPARK-5063. _pickle.PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. 代码I'm trying to calculate the Pearson correlation between two DStreams using sliding window in Pyspark. But I keep getting the following error: Traceback (most recent call last): File "/home/zeinab/Nov 11, 2017 · For more information, see SPARK-5063. edit: It seems the issue is that sklearn cross_validate() clones the estimator for each fit in a fashion similar to pickling the estimator object which is not allowed for PySpark GridsearchCV estimator because a SparkContext() object cannot/should not be pickled. Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. I also tried with the following (simple) neural network and command, and I receive EXACTLY the same errorI am getting the following error: PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063.Nov 15, 2015 · I want to broadcast a hashmap in Python that I would like to use for lookups on worker nodes. class datatransform: # Constructor def __init__(self, lookupFileName, dataFileName): ... Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsAug 21, 2017 · I downloaded a file and now I'm trying to write it as a dataframe to hdfs. import requests from pyspark import SparkContext, SparkConf conf = SparkConf().setAppName('Write Data').setMaster('loca... Jul 7, 2022 · SPARK-5063 relates to better error messages when trying to nest RDD operations, which is not supported. ⭐ It's a usability issue, not a functional one. ⭐The root cause is the nesting of RDD operat... Programming Language Abap ActionScript Assembly BASIC C C# C++ Clojure Cobol CSS Dart Delphi Elixir Erlang F# Fortran Go Groovy Haskell spark的调试问题. spark运行过程中的数据总是以RDD的方式存储，使用Logger等日志模块时，对RDD内数据无法识别，应先使用行为操作转化为scala数据结构然后输出。. scala Map 排序. 对于scala Map数据的排序，使用 scala.collection.immutable.ListMap 和 sortWiht (sortBy),具体用法如下 ... For more information, see SPARK-5063. apache-spark; apache-spark-sql; pyspark; Share. Improve this question. Follow edited Sep 30, 2019 at 2:52. Pyspark Developer. def pickleFile (self, name: str, minPartitions: Optional [int] = None)-> RDD [Any]: """ Load an RDD previously saved using :meth:`RDD.saveAsPickleFile` method... versionadded:: 1.1.0 Parameters-----name : str directory to the input data files, the path can be comma separated paths as a list of inputs minPartitions : int, optional suggested minimum number of partitions for the resulting RDD ...def localCheckpoint (self): """ Mark this RDD for local checkpointing using Spark's existing caching layer. This method is for users who wish to truncate RDD lineages while skipping the expensive step of replicating the materialized data in a reliable distributed file system. Jun 26, 2018 · Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. #88 Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. However, I am able to successfully implement using multithreading:Oct 10, 2019 · the following code: import dill fnc = lambda x:x dill.dumps(fnc, recurse=False) fails on Databricks notebook with the following error: Exception: It appears that you are attempting to reference Spa... Mar 18, 2021 · SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. For understanding a bit better what I am trying to do, let me give an example illustrating a possible use case : Lets say given_df is a dataframe of sentences, where each sentence consist of some words separated by space. May 2, 2015 · For more information, see SPARK-5063. As the error says, i'm trying to map (transformation) a JavaRDD object within the main map function, how is it possible with Apache Spark? The main JavaPairRDD object (TextFile and Word are defined classes): JavaPairRDD<TextFile, JavaRDD<Word>> filesWithWords = new... and map function: I am getting the following error: PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063.For more information, see SPARK-5063. _pickle.PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. 代码 Nov 15, 2015 · I want to broadcast a hashmap in Python that I would like to use for lookups on worker nodes. class datatransform: # Constructor def __init__(self, lookupFileName, dataFileName): ... May 2, 2015 · For more information, see SPARK-5063. As the error says, i'm trying to map (transformation) a JavaRDD object within the main map function, how is it possible with Apache Spark? The main JavaPairRDD object (TextFile and Word are defined classes): JavaPairRDD<TextFile, JavaRDD<Word>> filesWithWords = new... and map function: For more information, see SPARK-5063. Super simple EXAMPLE app to try and run some calculations in parallel. Works (sometimes) but most times crashes with the above exception.Jul 13, 2021 · Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. Is there any way to run a SQL query for each row of a dataframe in PySpark? spark的调试问题. spark运行过程中的数据总是以RDD的方式存储，使用Logger等日志模块时，对RDD内数据无法识别，应先使用行为操作转化为scala数据结构然后输出。. scala Map 排序. 对于scala Map数据的排序，使用 scala.collection.immutable.ListMap 和 sortWiht (sortBy),具体用法如下 ... Spark: Broadcast variables: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transforamtion. 0.I have a function that accepts a spark DataFrame and I would like to obtain the Spark context in which the DataFrames exists. The reason is that I want to get the SQLContext so I can run some SQL queries. sql_Context = SQLContext (output_df.sparkContext ()) sql_Context.registerDataFrameAsTable (output_df, "table1") sql_Context.sql ("select ...For more information, see SPARK-5063. As the error says, i'm trying to map (transformation) a JavaRDD object within the main map function, how is it possible with Apache Spark? The main JavaPairRDD object (TextFile and Word are defined classes): JavaPairRDD<TextFile, JavaRDD<Word>> filesWithWords = new... and map function:RDD transformations and actions can only be invoked by the driver, not inside of other transformations; for example, rdd1.map(lambda x: rdd2.values.count() * x) is invalid because the values transformation and count action cannot be performed inside of the rdd1.map transformation. For more information, see SPARK-5063. The preservesPartitioning = true tells Spark that this map function doesn't modify the keys of rdd2; this will allow Spark to avoid re-partitioning rdd2 for any subsequent operations that join based on the (t, w) key. This broadcast could be inefficient since it involves a communications bottleneck at the driver. Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transforamtion. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063.Oct 10, 2019 · the following code: import dill fnc = lambda x:x dill.dumps(fnc, recurse=False) fails on Databricks notebook with the following error: Exception: It appears that you are attempting to reference Spa... Jan 2, 2020 · PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. GroupedData.applyInPandas(func, schema) ¶. Maps each group of the current DataFrame using a pandas udf and returns the result as a DataFrame. The function should take a pandas.DataFrame and return another pandas.DataFrame. For each group, all columns are passed together as a pandas.DataFrame to the user-function and the returned pandas ...For more information, see SPARK-5063. _pickle.PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. 代码 Apr 23, 2015 · SPARK-5063 relates to better error messages when trying to nest RDD operations, which is not supported. It's a usability issue, not a functional one. The root cause is the nesting of RDD operations and the solution is to break that up. Here we are trying a join of dRDD and mRDD. Jul 7, 2022 · with mlflow.start_run (run_name="SomeModel_run"): model = SomeModel () mlflow.pyfunc.log_model ("somemodel", python_model=model) RuntimeError: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. "Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063." –Mar 18, 2021 · SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. For understanding a bit better what I am trying to do, let me give an example illustrating a possible use case : Lets say given_df is a dataframe of sentences, where each sentence consist of some words separated by space. Often, a unit of execution in an application consists of multiple Spark actions or jobs. Application programmers can use this method to group all those jobs together and give a group description. Once set, the Spark web UI will associate such jobs with this group. @G_cy the broadcast is an optimization of serialization. With serialization, Spark would need to serialize the map with each task dispatched to the executors.Part of AWS Collective. 1. I have created a script locally that uses the spark extension 'uk.co.gresearch.spark:spark-extension_2.12:2.2.0-3.3' for comparing different DataFrames in a simple manner. However, when I try this out on AWS Glue I ran into some issues and received this error: ModuleNotFoundError: No module named 'gresearch'.Error: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063.RuntimeError: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. Could I please get some help figuring this out? Thanks in advance!The preservesPartitioning = true tells Spark that this map function doesn't modify the keys of rdd2; this will allow Spark to avoid re-partitioning rdd2 for any subsequent operations that join based on the (t, w) key. This broadcast could be inefficient since it involves a communications bottleneck at the driver. 2. Think about Spark Broadcast variable as a Python simple data type like list, So the problem is how to pass a variable to the UDF functions. Here is an example: Suppose we have ages list d and a data frame with columns name and age. So we want to check if the age of each person is in ages list.Sep 30, 2022 · Part of AWS Collective. 1. I have created a script locally that uses the spark extension 'uk.co.gresearch.spark:spark-extension_2.12:2.2.0-3.3' for comparing different DataFrames in a simple manner. However, when I try this out on AWS Glue I ran into some issues and received this error: ModuleNotFoundError: No module named 'gresearch'. For more information, see SPARK-5063. (2) When a Spark Streaming job recovers from checkpoint, this exception will be hit if a reference to an RDD not defined by the streaming job is used in DStream operations. For more information, See SPARK-13758. Not working even after I revoked it and I'm not using any objects. Code Updated:For more information, see SPARK-5063. 原因： spark不允许在action或transformation中访问SparkContext，如果你的action或transformation中引用了self，那么spark会将整个对象进行序列化，并将其发到工作节点上，这其中就保留了SparkContext，即使没有显式的访问它，它也会在闭包内被引用 ...Jan 16, 2019 · Details. _pickle.PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. Jan 2, 2020 · PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. RuntimeError: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. Could I please get some help figuring this out? Thanks in advance!Jul 21, 2020 · For more information, see SPARK-5063. Super simple EXAMPLE app to try and run some calculations in parallel. Works (sometimes) but most times crashes with the above exception. So when you say it should execute self.decode_module() inside the nodes, PySpark tries to pickle the whole (self) object (that contains a reference to the spark context). To fix that, you just need to remove the SparkContext reference from the telco_cn class and use a different approach like using the SparkContext before calling the class ...Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. I also tried with the following (simple) neural network and command, and I receive EXACTLY the same errorspark的调试问题. spark运行过程中的数据总是以RDD的方式存储，使用Logger等日志模块时，对RDD内数据无法识别，应先使用行为操作转化为scala数据结构然后输出。. scala Map 排序. 对于scala Map数据的排序，使用 scala.collection.immutable.ListMap 和 sortWiht (sortBy),具体用法如下 ... df = spark.createDataFrame(data,schema=schema) Now we do two things. First, we create a function colsInt and register it. That registered function calls another function toInt (), which we don’t need to register. The first argument in udf.register (“colsInt”, colsInt) is the name we’ll use to refer to the function.SparkContext can only be used on the driver. When you invoke map you are on an Executor. The link I sent you runs parallel collection and is invoked from the Driver, also doing some zipping stuff. I discussed this with that person on that question as that is what became of it. That is the correct approach imho.It's a Spark problem :) When you apply function to Dataframe (or RDD) Spark needs to serialize it and send to all executors. It's not really possible to serialize FastText's code, because part of it is native (in C++). Possible solution would be to save model to disk, then for each spark partition load model from disk and apply it to the data.Mar 6, 2023 · Cannot create pyspark dataframe on pandas pipelinedRDD. list_of_df = process_pitd_objects (objects) # returns a list of dataframes list_rdd = sc.parallelize (list_of_df) spark_df_list = list_rdd.map (lambda x: spark.createDataFrame (x)).collect () So I have a list of dataframes in python and I want to convert each dataframe to pyspark. Create a Function. The first step in creating a UDF is creating a Scala function. Below snippet creates a function convertCase () which takes a string parameter and converts the first letter of every word to capital letter. UDF’s take parameters of your choice and returns a value. val convertCase = (strQuote:String) => { val arr = strQuote ...spark.sql("select * from test") --need to pass select values as intput values to same function --used pandas df for calling function – pythonUser Feb 24, 2021 at 16:08It's a Spark problem :) When you apply function to Dataframe (or RDD) Spark needs to serialize it and send to all executors. It's not really possible to serialize FastText's code, because part of it is native (in C++). Possible solution would be to save model to disk, then for each spark partition load model from disk and apply it to the data.There are 41 replacement spark plugs for Denso 5063 . The cross references are for general reference only, please check for correct specifications and measurements for your application. Denso 5063 replacement spark plugs ACDelco HE2 Autolite 3923 Autolite 9064 Bosch F7LDCR Bosch F8LDCR Bosch FGR7DQE+ Bosch FGR7DQP Bosch FGR8KQC Bosch FLR7LDCUFor more information, see SPARK-5063. Super simple EXAMPLE app to try and run some calculations in parallel. Works (sometimes) but most times crashes with the above exception.For more information, see SPARK-5063. apache-spark; apache-spark-sql; pyspark; Share. Improve this question. Follow edited Sep 30, 2019 at 2:52. Pyspark Developer. Feb 24, 2021 · spark.sql("select * from test") --need to pass select values as intput values to same function --used pandas df for calling function – pythonUser Feb 24, 2021 at 16:08 Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about TeamsJul 27, 2021 · For more information, see SPARK-5063. The objective of this piece of code is to create a flag for every row based on the date differences. Multiple rows per user are supplied to the function to create the values of the flag. I am trying to write a function in Azure databricks. I would like to spark.sql inside the function. But it looks like I cannot use it with worker nodes. def SEL_ID(value, index): # some processing on value here ans = spark.sql("SELECT id FROM table WHERE bin = index") return ans spark.udf.register("SEL_ID", SEL_ID)Create a Function. The first step in creating a UDF is creating a Scala function. Below snippet creates a function convertCase () which takes a string parameter and converts the first letter of every word to capital letter. UDF’s take parameters of your choice and returns a value. val convertCase = (strQuote:String) => { val arr = strQuote ...RuntimeError: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. Labels: Broadcast variable. Sparkcontext. 2_image.png.png. 37 KB.def textFile (self, name, minPartitions = None, use_unicode = True): """ Read a text file from HDFS, a local file system (available on all nodes), or any Hadoop-supported file system URI, and return it as an RDD of Strings.Error: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063.Above example first creates a DataFrame, transform the data using broadcast variable and yields below output. You can also use the broadcast variable on the filter and joins. Below is a filter example. # Broadcast variable on filter filteDf= df.where((df['state'].isin(broadcastStates.value)))This article describes how Apache Spark is related to Azure Databricks and the Azure Databricks Lakehouse Platform. Apache Spark is at the heart of the Azure Databricks Lakehouse Platform and is the technology powering compute clusters and SQL warehouses. Azure Databricks is an optimized platform for Apache Spark, providing an efficient and ...pyspark.SparkContext.broadcast. ¶. SparkContext.broadcast(value: T) → pyspark.broadcast.Broadcast [ T] [source] ¶. Broadcast a read-only variable to the cluster, returning a Broadcast object for reading it in distributed functions. The variable will be sent to each cluster only once. New in version 0.7.0. Parameters. valueT.
Jul 7, 2022 · @G_cy the broadcast is an optimization of serialization. With serialization, Spark would need to serialize the map with each task dispatched to the executors. . Historia de azo y aja
Without the call of collect the Dataframe url_select_df is distributed across the executors. When you then call map, the lambda expression gets executed on the executors.. Because the lambda expression is calling createDF which is using the SparkContext you get the exception as it is not possible to use the SparkContext on an execdef pickleFile (self, name: str, minPartitions: Optional [int] = None)-> RDD [Any]: """ Load an RDD previously saved using :meth:`RDD.saveAsPickleFile` method... versionadded:: 1.1.0 Parameters-----name : str directory to the input data files, the path can be comma separated paths as a list of inputs minPartitions : int, optional suggested minimum number of partitions for the resulting RDD ... Often, a unit of execution in an application consists of multiple Spark actions or jobs. Application programmers can use this method to group all those jobs together and give a group description. Once set, the Spark web UI will associate such jobs with this group.spark的调试问题. spark运行过程中的数据总是以RDD的方式存储，使用Logger等日志模块时，对RDD内数据无法识别，应先使用行为操作转化为scala数据结构然后输出。. scala Map 排序. 对于scala Map数据的排序，使用 scala.collection.immutable.ListMap 和 sortWiht (sortBy),具体用法如下 ...SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. For understanding a bit better what I am trying to do, let me give an example illustrating a possible use case : Lets say given_df is a dataframe of sentences, where each sentence consist of some words separated by space.The creation and usage of the broadcast variables for the data that is shared across the multiple stages and tasks. The broadcast variables are not sent to the executors with "sc. broadcast (variable)" call instead they will be sent to the executors when they are first used. The PySpark Broadcast variable is created using the "broadcast (v ...PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063.For more information, see SPARK-5063. apache-spark; apache-spark-sql; pyspark; Share. Improve this question. Follow edited Sep 30, 2019 at 2:52. Pyspark Developer. May 25, 2022 · PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. Jul 20, 2015 · Spark: Broadcast variables: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transforamtion. By referencing the object containing your broadcast variable in your map lambda, Spark will attempt to serialize the whole object and ship it to workers. Since the object contains a reference to the ... PicklingError: Could not serialize object: Exception: It appears that you are attempting to reference SparkContext from a broadcast variable, action, or transformation. SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063.org.apache.spark.SparkException: RDD transformations and actions can only be invoked by the driver, not inside of other transformations; for example, rdd1.map (x => rdd2.values.count () * x) is invalid because the values transformation and count action cannot be performed inside of the rdd1.map transformation. For more information, see SPARK-5063.The preservesPartitioning = true tells Spark that this map function doesn't modify the keys of rdd2; this will allow Spark to avoid re-partitioning rdd2 for any subsequent operations that join based on the (t, w) key. This broadcast could be inefficient since it involves a communications bottleneck at the driver.For more information, see SPARK-5063. apache-spark; apache-spark-sql; pyspark; Share. Improve this question. Follow edited Sep 30, 2019 at 2:52. Pyspark Developer. this rdd lacks a sparkcontext. it could happen in the following cases: . rdd transformations and actions are not invoked by the driver, . but inside of other transformations; for example, rdd1.map(x => rdd2.values.count() * x) is invalid because the values transformation and count action cannot be performed inside of the rdd1.map transformation RDD transformations and actions can only be invoked by the driver, not inside of other transformations; for example, rdd1.map(lambda x: rdd2.values.count() * x) is invalid because the values transformation and count action cannot be performed inside of the rdd1.map transformation. For more information, see SPARK-5063.For more information, see SPARK-5063. I've played with this a bit, and it seems to reliably occur anytime I try to map a class method to an RDD within the class. I have confirmed that the mapped function works fine if I implement outside of a class structure, so the problem definitely has to do with the class.SparkContext can only be used on the driver, not in code that it run on workers. For more information, see SPARK-5063. For understanding a bit better what I am trying to do, let me give an example illustrating a possible use case : Lets say given_df is a dataframe of sentences, where each sentence consist of some words separated by space.Apr 23, 2015 · SPARK-5063 relates to better error messages when trying to nest RDD operations, which is not supported. It's a usability issue, not a functional one. The root cause is the nesting of RDD operations and the solution is to break that up. Here we are trying a join of dRDD and mRDD. this rdd lacks a sparkcontext. it could happen in the following cases: . rdd transformations and actions are not invoked by the driver, . but inside of other transformations; for example, rdd1.map(x => rdd2.values.count() * x) is invalid because the values transformation and count action cannot be performed inside of the rdd1.map transformation.
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