Hello Chain , Since the issue occurred only once and you couldn't reproduce it, it's likely due to a transient network issue. Monitoring your environment for network reliability and adding retry logic in your code would be prudent steps to ensure robustness against similar future occurrences Answer from Adeleke Adebowale .J. on repost.aws
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Py4j
py4j.org › py4j_java_protocol.html
4.3. py4j.protocol — Py4J Protocol — Py4J
The exception instance that was thrown on the Java side can be accessed with Py4JJavaError.java_exception. str(py4j_java_error) returns the error message and the stack trace available on the Java side (similar to printStackTrace()). Note that str(py4j_java_error) in Python 2 might not automatically ...
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Python.org
discuss.python.org › python help
Getting py4j.protocol.Py4JJavaError when running Spark job (pyspark version 3.5.1 and python version 3.11) - Python Help - Discussions on Python.org
April 17, 2024 - Hi, I am getting the following error when running Spark job (pySpark 3.5.1 is what my pip freeze shows) using Python 3.11. My colleague is using python 3.9 and he seems to have no problem. Could it be just because of higher Python version difference? py4j.protocol.Py4JJavaError: An error occurred while calling o60.javaToPython.
Discussions
AWS Glue Pyspark job is not able to save a Dataframe as csv format into an S3 Bucket (error `py4j.protocol.Py4JJavaError: An error occurred while calling o1257.csv`)
2024-08-22 23:24:09,120 ERROR [main] ... in deco return f(*a, **kw) File "/opt/amazon/spark/python/lib/py4j-0.10.9.5-src.zip/py4j/protocol.py", line 326, in get_return_value raise Py4JJavaError( py4j.protocol.Py4JJavaError: An error occurred while calling o1257.csv.... More on repost.aws
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August 23, 2024
[Question] py4j.protocol.Py4JJavaError: An error occurred while calling o38.applySchemaToPythonRDD
Bug Getting Incompatible Class with the most recent spark and delta-spark versions for all of my unit tests. I run my tests with: python -m pytest tests/unit The error: E py4j.protocol.Py4JJavaError: An error occurred while calling o38.a... More on github.com
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February 24, 2023
py4j.protocol.Py4JJavaError: An error occurred while calling o29.load. : org.apache.spark.SparkClassNotFoundException: [DATA_SOURCE_NOT_FOUND] Failed to find the data source: mongodb
i run data pipelines in airflow gcp using pyspark, it was running perfectly before but suddenly the py4j.protocol.Py4JJavaError: An error occurred while calling o29.load. : org.apache.spark.SparkClassNotFoundException: [DATA_SOURCE_NOT_FOUND] Failed to find the data source: mongodb appears. ... More on mongodb.com
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py4j.protocol.Py4JJavaError when calling o100.savePyDataFrame
Hi, I recently started using Dataiku and I get the following error in my pyspark code: More on community.dataiku.com
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Microsoft Learn
learn.microsoft.com › en-us › answers › questions › 695496 › py4jjavaerror-an-error-occurred-while-calling
Py4JJavaError: An error occurred while calling - Microsoft Q&A
January 14, 2022 - /databricks/spark/python/pyspark/sql/utils.py in deco(*a, **kw) 115 def deco(*a, **kw): 116 try: --> 117 return f(*a, **kw) 118 except py4j.protocol.Py4JJavaError as e: 119 converted = convert_exception(e.java_exception)
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Mark Needham
markhneedham.com › blog › 2015 › 08 › 04 › spark-pysparkhadoop-py4j-protocol-py4jjavaerror-an-error-occurred-while-calling-o23-load-org-apache-hadoop-ipc-remoteexception-server-ipc-version-9-cannot-communicate-with-client-version-4
Spark: pyspark/Hadoop - py4j.protocol.Py4JJavaError: An error occurred while calling o23.load.: org.apache.hadoop.ipc.RemoteException: Server IPC version 9 cannot communicate with client version 4 | Mark Needham
August 4, 2015 - Traceback (most recent call last): File "/Users/markneedham/projects/neo4j-spark-chicago/fbi_spark.py", line 11, in <module> sqlContext.load(source="com.databricks.spark.csv", header="true", path = file).registerTempTable("crimes") File "/Users/markneedham/projects/neo4j-spark-chicago/spark-1.3.0-bin-hadoop1/python/pyspark/sql/context.py", line 482, in load df = self._ssql_ctx.load(source, joptions) File "/Users/markneedham/projects/neo4j-spark-chicago/spark-1.3.0-bin-hadoop1/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py", line 538, in __call__ File "/Users/markneedham/projects/neo4j-spark-chicago/spark-1.3.0-bin-hadoop1/python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py", line 300, in get_return_value py4j.protocol.Py4JJavaError: An error occurred while calling o23.load.
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Databricks Community
community.databricks.com › t5 › data-engineering › how-to-solve-py4jjavaerror-an-error-occurred-while-calling-o5082 › td-p › 24028
How to solve Py4JJavaError: An error occurred while calling o5082.csv. : org.apache.spark.SparkException: Job aborted. when writing to csv
July 1, 2025 - Solved: Hi , I get the error: Py4JJavaError: An error occurred while calling o5082.csv. : org.apache.spark.SparkException: Job aborted. when - 24028
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Apache
spark.apache.org › docs › latest › api › python › development › debugging.html
Debugging PySpark — PySpark 4.1.1 documentation
Py4JJavaError is raised when an exception occurs in the Java client code. You can see the type of exception that was thrown on the Java side and its stack trace, as java.lang.NullPointerException below. Example: >>> spark.sparkContext._jvm.java.lang.String(None) Traceback (most recent call ...
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AWS re:Post
repost.aws › questions › QUXPLegA1uTo6VFTvwY1bKiA › aws-glue-pyspark-job-is-not-able-to-save-a-dataframe-as-csv-format-into-an-s3-bucket-error-py4j-protocol-py4jjavaerror-an-error-occurred-while-calling-o1257-csv
AWS Glue Pyspark job is not able to save a Dataframe as csv format into an S3 Bucket (error `py4j.protocol.Py4JJavaError: An error occurred while calling o1257.csv`) | AWS re:Post
Top answer
1 of 1
1
Hello Chain , Since the issue occurred only once and you couldn't reproduce it, it's likely due to a transient network issue. Monitoring your environment for network reliability and adding retry logic in your code would be prudent steps to ensure robustness against similar future occurrences
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Snyk
snyk.io › advisor › py4j › functions › py4j.protocol.py4jjavaerror
How to use the py4j.protocol.Py4JJavaError function in py4j | Snyk
def run_spark_action(action): import py4j try: results = action() except py4j.protocol.Py4JJavaError: logging.error("Spark job failed to run!
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GitHub
github.com › delta-io › delta › issues › 1614
[Question] py4j.protocol.Py4JJavaError: An error occurred while calling o38.applySchemaToPythonRDD · Issue #1614 · delta-io/delta
February 24, 2023 - """ if is_error(answer)[0]: if len(answer) > 1: type = answer[1] value = OUTPUT_CONVERTER[type](answer[2:], gateway_client) if answer[1] == REFERENCE_TYPE: > raise Py4JJavaError( "An error occurred while calling {0}{1}{2}.\n". format(target_id, ".", name), value) E py4j.protocol.Py4JJavaError: An error occurred while calling o38.applySchemaToPythonRDD.
Author   aimtsou
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Py4j
py4j.org › advanced_topics.html
3. Advanced Topics — Py4J
Py4JJavaError. This exception is raised when an exception occurs in the Java client code. For example, if you try to pop an element from an empty stack.
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GitHub
github.com › JohnSnowLabs › spark-nlp › issues › 8445
py4j.protocol.Py4JJavaError: An error occurred while calling z:com.johnsnowlabs.nlp.pretrained.PythonResourceDownloader.getDownloadSize. · Issue #8445 · JohnSnowLabs/spark-nlp
May 15, 2022 - Description i try download the pre-trained model finBERT, but i have this erro py4j.protocol.Py4JJavaError: An error occurred while calling z:com.johnsnowlabs.nlp.pretrained.PythonResourceDownloader.getDownloadSize. code sequenceClassifi...
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Py4j
py4j.org › getting_started.html
2. Getting Started with Py4J — Py4J
You get a Py4JJavaError because there was an exception on the JVM side. In addition, you can see the type of exception that was thrown on the Java side and its stack trace.
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Spark By {Examples}
sparkbyexamples.com › home › pyspark › solved: py4j.protocol.py4jerror: org.apache.spark.api.python.pythonutils.getencryptionenabled does not exist in the jvm
SOLVED: py4j.protocol.Py4JError: org.apache.spark.api.python.PythonUtils.getEncryptionEnabled does not exist in the JVM - Spark By {Examples}
March 27, 2024 - While setting up PySpark to run with Spyder, Jupyter, or PyCharm on Windows, macOS, Linux, or any OS, we often get the error “py4j.protocol.Py4JError: org.apache.spark.api.python.PythonUtils.getEncryptionEnabled does not exist in the JVM“ · Below are the steps to solve this problem
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MongoDB
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py4j.protocol.Py4JJavaError: An error occurred while calling o29.load. : org.apache.spark.SparkClassNotFoundException: [DATA_SOURCE_NOT_FOUND] Failed to find the data source: mongodb - Connectors & Integrations - MongoDB Community Hub
July 22, 2023 - i run data pipelines in airflow gcp using pyspark, it was running perfectly before but suddenly the py4j.protocol.Py4JJavaError: An error occurred while calling o29.load. : org.apache.spark.SparkClassNotFoundException: [DATA_SOURCE_NOT_FOUND] Failed to find the data source: mongodb appears. ...
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Orchestra
getorchestra.io › guides › resolving-py4j-protocol-py4jjavaerror-in-pyiceberg-and-pyspark
Resolving py4j.protocol.Py4JJavaError in PyIceberg and PySpark | Orchestra
February 10, 2026 - The py4j.protocol.Py4JJavaError occurs when PySpark tries to communicate with the underlying JVM (Java Virtual Machine) and encounters a problem.
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Cloudera Community
community.cloudera.com › t5 › Support-Questions › Query-Hive-Using-Python-Getting-below-error › m-p › 357429
Solved: Re: Query Hive Using Python Getting below error - Cloudera Community - 357347
November 11, 2022 - ERROR - Unknown Exception:07<class 'py4j.protocol.Py4JJavaError'>An error occurred while calling o1140.insertInto.
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Cloudera Community
community.cloudera.com › t5 › Support-Questions › py4j-protocol-Py4JJavaError-in-pyspark-while-reading-file › m-p › 228902
py4j.protocol.Py4JJavaError in pyspark while readi... - Cloudera Community - 228902
September 16, 2022 - py4j.protocol.Py4JJavaError: An error occurred while calling o32.load.: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.fs.s3a.S3AFileSystem not found<br>
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Databricks Community
community.databricks.com › t5 › data-engineering › py4j-protocol-py4jjavaerror-an-error-occurred-while-calling-o359 › td-p › 53933
py4j.protocol.Py4JJavaError: An error occurred whi... - Databricks Community - 53933
October 17, 2025 - py4j.Py4JException: An exception was raised by the Python Proxy. Return Message: Traceback (most recent call last): py4j.protocol.Py4JJavaError: An error occurred while calling o359.sql.
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Dataiku Community
community.dataiku.com › questions & discussions › using dataiku
py4j.protocol.Py4JJavaError when calling o100.savePyDataFrame — Dataiku Community
March 29, 2023 - com.dataiku.common.server.APIError$SerializedErrorException: At line 58: <class 'py4j.protocol.Py4JJavaError'>: An error occurred while calling o100.savePyDataFrame.
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Stack Overflow
stackoverflow.com › questions › 50064646 › py4j-protocol-py4jjavaerror-occurred-while-calling-zorg-apache-spark-api-python
py4j.protocol.Py4JJavaError occurred while calling z:org.apache.spark.api.python.PythonRDD.collectAndServe - Stack Overflow
Top answer
1 of 10
16

Actually, I found a tricky solution. To solve the following problem:

Be sure that you installed Py4j, correctly. It's better to install it by using an official release. To do,

  1. download the latest official release from from https://pypi.org/project/py4j/.

  2. untar/unzip the file and navigate to the newly created directory, e.g., cd py4j-0.x.

  3. run

    sudo python(3) setup.py install

Then downgrade your Java to version 8 (previously, I used version 10.). To do, first remove the current version of Java using:

sudo apt-get purge openjdk-\* icedtea-\* icedtea6-\*

and then Install Java 8 using:

sudo apt install openjdk-8-jre-headless

Now the code works for me properly.

2 of 10
4

I also confirm that the solution works on Ubuntu 18.04 LTS.

I had a java 10 installed and tried to run the Python examples from: http://spark.apache.org/docs/2.3.1/, i.e. things as simple as:

./bin/spark-submit examples/src/main/python/pi.py 10

It did not work!

After applying the suggested fix:

sudo apt-get purge openjdk-\* icedtea-\* icedtea6-\*
sudo apt autoremove
sudo apt install openjdk-8-jre-headless

the example eventually worked; I mean if you consider that the right answer is:

Pi is roughly 3.142000

Thanks for the solution,
Bagvian