I have spark installed. And, I can go into the bin folder within my spark version, and run ./spark-shell and it runs correctly.
But, for some reason, I am unable to launch pyspark and any of the submodules.
So, I go into bin and launch ./pyspark and it tells me that my path is incorrect.
The current path I have for PYSPARK_PYTHON is the same as where I'm running the pyspark executable script from.
What is the correct path for PYSPARK_PYTHON? Shouldn't it be the path that leads to the executable script called pyspark in the bin folder of the spark version?
That's the path that I have now, but it tells me env: <full PYSPARK_PYTHON path> no such file or directory. Thanks.
What is the correct path for PYSPARK_PYTHON? Shouldn't it be the path that leads to the executable script called pyspark in the bin folder of the spark version?
No, it shouldn't. It should point to a Python executable you want to use with Spark (for example output from which python. If you don't want to use custom interpreter just ignore it. Spark will use the first Python interpreter available on your system PATH.
Related
I am trying to run a Python script in Spark. I am running Spark in client mode (i.e. single node) with a Python script that has some dependencies (e.g. pandas) installed via Conda. There are various resources which cover this usage case, for example:
https://conda.github.io/conda-pack/spark.html
https://databricks.com/blog/2020/12/22/how-to-manage-python-dependencies-in-pyspark.html
Using those as an example I run Spark via the following command in the Spark bin directory, where /tmp/env.tar is the Conda environment packed by conda-pack:
export PYSPARK_PYTHON=./environment/bin/python
./spark-submit --archives=/tmp/env.tar#environment script.py
Spark throws the following exception:
java.io.IOException: Cannot run program "./environment/bin/python": error=2, No such file or directory
Why does this not work? I am curious also about the ./ in the Python path as it's not clear where Spark unpacks the tar file. I assumed I did not need to load the tar file into HDFS since this is all running on a single node (but perhaps I do for cluster mode?).
I am trying to get pyspark setup for windows. I have java, python, Hadoop, and spark all setup and environmental variables I believe are setup as I've been instructed elsewhere. In fact, I am able to run this from the command prompt:
pyspark.cmd
And it will load up the pyspark interpreter. However, I should be able to run pyspark unqualified (without the .cmd), and python importing won't work otherwise. It does not matter whether I navigate directly to spark\bin or not, because I do have spark\bin added to the PATH already.
.cmd is listed in my PATHEXT variable, so I don't get why the pyspark command by itself doesn't work.
Thanks for any help.
While I still don't know exactly why, I think the issue somehow stemmed out of how I unzipped the spark tar file. Within the spark\bin folder, I was unable to run any .cmd programs without the .cmd extension included. But I could do that in basically any other folder. I redid the unzip and the problem no longer existed.
I am trying to set up SPARK2 on my cloudera cluster. For that, I have JDK1.8:
I have installed scala 2.11.8 using the rpm file:
I have downloaded, extracted the spark version 2.2.0 on my home directory: /home/cloudera.
I made changes to the PATH variable in .bashrc as below:
But when I try to execute spark-shell from the home directory: /home/cloudera, it says no such file or directory which can be seen below:
[cloudera#quickstart ~]$ spark-shell
/home/cloudera/spark/bin/spark-class: line 71: /usr/java/jdk1.7.0_67-cloudera/bin/java: No such file or directory
[cloudera#quickstart ~]$
Could anyone let me know how can I fix the problem and configure it properly ?
Java/JVM applications (and spark-shell in particular) uses java binary to launch itself. Therefore they need to know where it is located, which is usually done via JAVA_HOME environment variable.
In your case it's not reset explicitely and value from Clauder's default one Java distribution is used (even if it points to empty location).
You need to set JAVA_HOME pointing to correct java distribution directory for the user under which you want to launch spark-shell and other application.
Im trying to get spark working on win10. When i try to run spark shell i get this error :
'Spark\spark-2.0.0-bin-hadoop2.7\bin..\jars""\ is not recognized as an internal or external command,operable program or batch file.
Failed to find Spark jars directory. You need to build Spark before running this program.
I am using a pre-built spark for hadoop 2.7 or later. I have installed java 8, eclipse neon, python 2.7, scala 2.11, gotten winutils for hadoop 2.7.1 And i still get this error.
When I donwloaded spark it comes in the tgz, when extracted there is another tzg inside, so i extracted it also and then I got all the bin folders and stuff. I need to access spark-shell. Can anyone help?
EDIT:
Solution i ended up using:
1) Virtual box
2) Linux mint
I got the same error while building Spark. You can move the extracted folder to C:\
Refer this:
http://techgobi.blogspot.in/2016/08/configure-spark-on-windows-some-error.html
You are probably giving the wrong folder path to Spark bin.
Just open the command prompt and change directory to the bin inside the spark folder.
Type spark-shell to check.
Refer: Spark on win 10
"On Windows, I found that if it is installed in a directory that has a space in the path (C:\Program Files\Spark) the installation will fail. Move it to the root or another directory with no spaces."
OR
If you have installed Spark under “C:\Program Files (x86)..” replace 'Program Files (x86)' with Progra~2 in the PATH env variable and SPARK_HOME user variable.
I was trying to run spark-submit and I get
"Failed to find Spark assembly JAR.
You need to build Spark before running this program."
When I try to run spark-shell I get the same error.
What I have to do in this situation.
On Windows, I found that if it is installed in a directory that has a space in the path (C:\Program Files\Spark) the installation will fail. Move it to the root or another directory with no spaces.
Your Spark package doesn't include compiled Spark code. That's why you got the error message from these scripts spark-submit and spark-shell.
You have to download one of pre-built version in "Choose a package type" section from the Spark download page.
Try running mvn -DskipTests clean package first to build Spark.
If your spark binaries are in a folder where the name of the folder has spaces (for example, "Program Files (x86)"), it didn't work. I changed it to "Program_Files", then the spark_shell command works in cmd.
In my case, I install spark by pip3 install pyspark on macOS system, and the error caused by incorrect SPARK_HOME variable. It works when I run command like below:
PYSPARK_PYTHON=python3 SPARK_HOME=/usr/local/lib/python3.7/site-packages/pyspark python3 wordcount.py a.txt
Go to SPARK_HOME. Note that your SPARK_HOME variable should not include /bin at the end. Mention it when you're when you're adding it to path like this: export PATH=$SPARK_HOME/bin:$PATH
Run export MAVEN_OPTS="-Xmx2g -XX:ReservedCodeCacheSize=1g" to allot more memory to maven.
Run ./build/mvn -DskipTests clean package and be patient. It took my system 1 hour and 17 minutes to finish this.
Run ./dev/make-distribution.sh --name custom-spark --pip. This is just for python/pyspark. You can add more flags for Hive, Kubernetes, etc.
Running pyspark or spark-shell will now start pyspark and spark respectively.
If you have downloaded binary and getting this exception
Then please check your Spark_home path may contain spaces like "apache spark"/bin
Just remove spaces will works.
Just to add to #jurban1997 answer.
If you are running windows then make sure that SPARK_HOME and SCALA_HOME environment variables are setup right. SPARK_HOME should be pointing to {SPARK_HOME}\bin\spark-shell.cmd
For Windows machine with the pre-build version as of today (21.01.2022):
In order to verify all the edge cases you may have and avoid tedious guesswork about what exactly is not configred properly:
Find spark-class2.cmd and open it in with a text editor
Inspect the arguments of commands staring with call or if exists by typing the arguments in Command Prompt like this:
Open Command Prompt. (For PowerShell you need to print the var another way)
Copy-paste %SPARK_HOME%\bin\ as is and press enter.
If you see something like bin\bin in the path displayed now then you have appended /bin in your environment variable %SPARK_HOME%.
Now you have to add the path to the spark/bin to your PATH variable or it will not find spark-submit command
Try out and correct every path variable that the script in this file uses and and you should be good to go.
After that enter spark-submit ... you may now encounter the missing hadoop winutils.exe for which problem you can go get the tool and paste it where the spark-submit.cmd is located
Spark Installation:
For Window machine:
Download spark-2.1.1-bin-hadoop2.7.tgz from this site https://spark.apache.org/downloads.html
Unzip and Paste your spark folder in C:\ drive and set environment variable.
If you don’t have Hadoop,
you need to create Hadoop folder and also create Bin folder in it and then copy and paste winutils.exe file in it.
download winutils file from [https://codeload.github.com/gvreddy1210/64bit/zip/master][1]
and paste winutils.exe file in Hadoop\bin folder and set environment variable for c:\hadoop\bin;
create temp\hive folder in C:\ drive and give the full permission to this folder like:
C:\Windows\system32>C:\hadoop\bin\winutils.exe chmod 777 /tmp/hive
open command prompt first run C:\hadoop\bin> winutils.exe and then navigate to C:\spark\bin>
run spark-shell