Pyspark Exception Java gateway process exited before sending the driver its port number

Question

I m trying to run pyspark on my macbook air  When i try starting it up I get the error   Exception  Java gateway process exited before sending the driver its port number   when sc   SparkContext   is being called upon startup  I have tried running the following commands     bin pyspark   bin spark-shell export PYSPARK SUBMIT ARGS  --master local 2  pyspark-shell    with no avail  I have also looked here   Spark   Python - Java gateway process exited before sending the driver its port number    but the question has never been answered  Please help  Thanks

User · Answer

I have the same error   My trouble shooting procedures are    Check out Spark source code  Follow the error message  In my case  pyspark java gateway py  line 93  in launch gateway  Check the code logic to find the root cause then you will resolve it    In my case the issue is PySpark has no permission to create some temporary directory  so I just run my IDE with sudo

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I use Mac OS  I fixed the problem   Below is how I fixed it   JDK8 seems works fine   https   github com jupyter jupyter issues 248   So I checked my JDK  Library Java JavaVirtualMachines  I only have jdk-11 jdk in this path    I downloaded JDK8  I followed the link   Which is   brew tap caskroom versions brew cask install java8   After this  I added  export JAVA HOME  Library Java JavaVirtualMachines jdk1 8 0 202 jdk Contents Home export JAVA HOME     usr libexec java home -v 1 8     to    bash profile file    you sholud check your jdk1 8 file name   It works now  Hope this help

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I was getting this error when i was using jdk-1 8 32-bit switching to 64-bit works for me  I was getting this error because 32-bit java could not allocate more than 3G heap memory required by the spark driver  16G   builder   SparkSession builder            appName  quot Spark NLP quot              master  quot local    quot              config  quot spark driver memory quot    quot 16G quot              config  quot spark serializer quot    quot org apache spark serializer KryoSerializer quot              config  quot spark kryoserializer buffer max quot    quot 1000M quot              config  quot spark driver maxResultSize quot    quot 0 quot    I tested making this up to 2G and it worked in 32-bit as well

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One possible reason is JAVA HOME is not set because java is not installed   I encountered the same issue  It says   Exception in thread  main  java lang UnsupportedClassVersionError  org apache spark launcher Main   Unsupported major minor version 51 0     at java lang ClassLoader defineClass1 Native Method      at java lang ClassLoader defineClass ClassLoader java 643      at java security SecureClassLoader defineClass SecureClassLoader java 142      at java net URLClassLoader defineClass URLClassLoader java 277      at java net URLClassLoader access 000 URLClassLoader java 73      at java net URLClassLoader 1 run URLClassLoader java 212      at java security AccessController doPrivileged Native Method      at java net URLClassLoader findClass URLClassLoader java 205      at java lang ClassLoader loadClass ClassLoader java 323      at sun misc Launcher AppClassLoader loadClass Launcher java 296      at java lang ClassLoader loadClass ClassLoader java 268      at sun launcher LauncherHelper checkAndLoadMain LauncherHelper java 406  Traceback  most recent call last     File   lt string gt    line 1  in  lt module gt    File   opt spark python pyspark conf py   line 104  in   init       SparkContext  ensure initialized     File   opt spark python pyspark context py   line 243  in  ensure initialized     SparkContext  gateway   gateway or launch gateway     File   opt spark python pyspark java gateway py   line 94  in launch gateway     raise Exception  Java gateway process exited before sending the driver its port number   Exception  Java gateway process exited before sending the driver its port number   at sc   pyspark SparkConf    I solved it by running  sudo add-apt-repository ppa webupd8team java sudo apt-get update sudo apt-get install oracle-java8-installer   which is from https   www digitalocean com community tutorials how-to-install-java-with-apt-get-on-ubuntu-16-04

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Worked hours on this  My problem was with Java 10 installation  I uninstalled it and installed Java 8  and now Pyspark works

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In my case it was because I wrote SPARK DRIVER MEMORY 10 instead of SPARK DRIVER MEMORY 10g in spark-env sh

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There are so many reasons for this error  My reason is   the version of pyspark is incompatible with spark   pyspark version  2 4 0  but spark version is 2 2 0  it always cause python always fail when starting spark process  then spark cannot tell its ports to python  so error will be  Pyspark  Exception  Java gateway process exited before sending the driver its port number     I suggest you dive into source code to find out the real reasons when this error happens

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For me  the answer was to add two  Content Roots  in  File  -   Project Structure  -   Modules   in IntelliJ     YourPath spark-2 2 1-bin-hadoop2 7 python YourPath spark-2 2 1-bin-hadoop2 7 python lib py4j-0 10 4-src zip

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this should help you  One solution is adding pyspark-shell to the shell environment variable PYSPARK SUBMIT ARGS   export PYSPARK SUBMIT ARGS  --master local 2  pyspark-shell    There is a change in python pyspark java gateway py   which requires PYSPARK SUBMIT ARGS includes pyspark-shell if a PYSPARK SUBMIT ARGS variable is set by a user

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This usually happens if you do not have java installed in your machine   Go to command prompt and check the version of your java   type   java -version  you should get output sth like this  java version  1 8 0 241  Java TM  SE Runtime Environment  build 1 8 0 241-b07  Java HotSpot TM  64-Bit Server VM  build 25 241-b07  mixed mode   If not  go to orcale and download jdk   Check this video on how to download java and add it to the buildpath   https   www youtube com watch v f7rT0h1Q5Wo

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I will repost how I solved it here just for future references  How I solved my similar problem Prerequisite   anaconda already installed Spark already installed  https   spark apache org downloads html  pyspark already installed  https   anaconda org conda-forge pyspark   Steps I did  NOTE  set the folder path accordingly to your system    set the following environment variables  SPARK HOME to  C  spark spark-3 0 1-bin-hadoop2 7  set HADOOP HOME  to  C  spark spark-3 0 1-bin-hadoop2 7  set PYSPARK DRIVER PYTHON to  jupyter  set PYSPARK DRIVER PYTHON OPTS to  notebook  add  C  spark spark-3 0 1-bin-hadoop2 7 bin   to PATH system variable  Change the java installed folder directly under C   Previously java was installed under Program files  so I re-installed directly under C   so my JAVA HOME will become like this  C  java jdk1 8 0 271    now  it works

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Had this error message running pyspark on Ubuntu  got rid of it by installing the openjdk-8-jdk package  from pyspark import SparkConf  SparkContext sc   SparkContext conf SparkConf   setAppName  MyApp   setMaster  local        error   Install Open JDK 8   apt-get install openjdk-8-jdk-headless -qq       On MacOS  Same on Mac OS  I typed in a terminal     java -version No Java runtime present  requesting install     I was prompted to install Java from the Oracle s download site  chose the MacOS installer  clicked on jdk-13 0 2 osx-x64 bin dmg and after that checked that Java was installed    java -version java version  13 0 2  2020-01-14   EDIT To install JDK 8 you need to go to https   www oracle com java technologies javase-jdk8-downloads html  login required    After that I was able to start a Spark context with pyspark    Checking if it works  In Python   from pyspark import SparkContext  sc   SparkContext getOrCreate       check that it really works by running a job   example from http   spark apache org docs latest rdd-programming-guide html parallelized-collections data   range 10000   distData   sc parallelize data  distData filter lambda x  not x amp 1  take 10    Out   0  2  4  6  8  10  12  14  16  18    Note that you might need to set the environment variables PYSPARK PYTHON and PYSPARK DRIVER PYTHON and they have to be the same Python version as the Python  or IPython  you re using to run pyspark  the driver

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After spending hours and hours trying many different solutions  I can confirm that Java 10 SDK causes this error  On Mac  please navigate to  Library Java JavaVirtualMachines then run this command to uninstall Java JDK 10 completely   sudo rm -rf jdk-10 jdk    After that  please download JDK 8 then the problem will be solved

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For Linux  Ubuntu 18 04  with a JAVA HOME issue  a key is to point it to the master folder    Set Java 8 as default by  sudo update-alternatives --config java  If Jave 8 is not installed  install by  sudo apt install openjdk-8-jdk  Set JAVA HOME environment variable as the master java 8 folder  The location is given by the first command above removing jre bin java  Namely  export JAVA HOME   usr lib jvm java-8-openjdk-amd64    If done on the command line  this will be relevant only for the current session  ref  export command on Linux   To verify  echo  JAVA HOME  In order to have this permanently set  add the bolded line above to a file that runs before you start your IDE Jupyter python interpreter  This could be by adding the bolded line above to  bashrc  This file loads when a bash is started interactively ref   bashrc

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The error occured since JAVA is not installed on machine  Spark is developed in scala which usually runs on JAVA   Try to install JAVA and execute the pyspark statements  It will works

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I go this error fixed by using the below code  I had setup the SPARK HOME though  You may follow this simple steps from eproblems website  spark home   os environ get  SPARK HOME   None

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I got the same Java gateway process exited      port number exception even though I set PYSPARK SUBMIT ARGS properly  I m running Spark 1 6 and trying to get pyspark to work with IPython4 Jupyter  OS  ubuntu as VM guest    While I got this exception  I noticed an hs err   log was generated and it started with   There is insufficient memory for the Java Runtime Environment to continue  Native memory allocation  malloc  failed to allocate 715849728 bytes for committing reserved memory   So I increased the memory allocated for my ubuntu via VirtualBox Setting and restarted the guest ubuntu  Then this Java gateway exception goes away and everything worked out fine

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I got this error because I was running low on disk space

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Had the same issue when was trying to run the pyspark job triggered from the Airflow with remote spark driver host  The cause of the issue in my case was       Exception  Java gateway process exited before sending the driver its   port number           Exception in thread  main  java lang Exception  When running with master  yarn  either HADOOP CONF DIR or YARN CONF DIR must be set in the environment    Fixed by adding exports   export HADOOP CONF DIR  etc hadoop conf   And the same environment variable added in the pyspark script   import os os environ  HADOOP CONF DIR       etc hadoop conf

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I have the same error in running pyspark in pycharm  I solved the problem by adding JAVA HOME in pycharm s environment variables

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In my case this error came for the script which was running fine before  So I figured out that this might be due to my JAVA update  Before I was using java 1 8 but I had accidentally updated to java 1 9  When I switched back to java 1 8 the error disappeared and everything is running fine   For those  who get this error for the same reason but do not know how to switch back to older java version on ubuntu   run  sudo update-alternatives --config java    and make the selection for java version

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I got the same Exception  Java gateway process exited before sending the driver its port number in Cloudera VM when trying to start IPython with CSV support with a syntax error   PYSPARK DRIVER PYTHON ipython pyspark --packages com databricks spark-csv 2 10 1 4 0  will throw the error  while   PYSPARK DRIVER PYTHON ipython pyspark --packages com databricks spark-csv 2 10 1 4 0  will not   The difference is in that last colon in the last  working  example  seperating the Scala version number from the package version number

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This is an old thread but I m adding my solution for those who use mac   The issue was with the JAVA HOME   You have to include this in your  bash profile   Check your java -version  If you downloaded the latest Java but it doesn t show up as the latest version  then you know that the path is wrong   Normally  the default path is export JAVA HOME   usr bin java     So try changing the path to   Library Internet  Plug-Ins JavaAppletPlugin plugin Contents Home bin java  Alternatively you could also download the latest JDK  https   www oracle com technetwork java javase downloads index html and this will automatically replace usr bin java to the latest version   You can confirm this by doing java -version again   Then that should work

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I had the same exception and I tried everything by setting and resetting all environment variables  But the issue in the end drilled down to space in appname property of spark session that is   SparkSession builder appName  StreamingDemo   getOrCreate     Immediately after removing space from string given to appname property it got resolved I was using pyspark 2 7 with eclipse on windows 10 environment  It worked for me  Enclosed are required screenshots

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Make sure that both your Java directory  as found in your path  AND your Python interpreter reside in directories with no spaces in them  These were the cause of my problem

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Spark is very picky with the Java version you use  It is highly recommended that you use Java 1 8  The open source AdoptOpenJDK 8 works well too   After install it  set JAVA HOME to your bash variables  if you use Mac Linux   export JAVA HOME    usr libexec java home -v 1 8   export PATH  JAVA HOME bin  PATH

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Had the same issue with my iphython notebook  IPython 3 2 1  on Linux  ubuntu    What was missing in my case was setting the master URL in the  PYSPARK SUBMIT ARGS environment like this  assuming you use bash     export PYSPARK SUBMIT ARGS  --master spark    lt host gt   lt port gt     e g   export PYSPARK SUBMIT ARGS  --master spark   192 168 2 40 7077    You can put this into your  bashrc file  You get the correct URL in the log for the spark master  the location for this log is reported when you start the master with  sbin start master sh

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I figured out the problem in Windows system  The installation directory for Java must not have blanks in the path such as in C  Program Files  I re-installed Java in C Java  I set JAVA HOME to C  Java and the problem went away

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Had same issue  after installing java using below lines solved the issue    sudo add-apt-repository ppa webupd8team java sudo apt-get update sudo apt-get install oracle-java8-installer

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If you are trying to run spark without hadoop binaries  you might encounter the above mentioned error  One solution is to    1  download hadoop separatedly  2  add hadoop to your PATH 3  add hadoop classpath to your SPARK install  The first two steps are trivial  the last step can be best done by adding the following in the  SPARK HOME conf spark-env sh in each spark node  master and workers       in conf spark-env sh      export SPARK DIST CLASSPATH   hadoop classpath    for more info also check  https   spark apache org docs latest hadoop-provided html

[java] Pyspark: Exception: Java gateway process exited before sending the driver its port number

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