GitHub user BryanCutler opened a pull request:
https://github.com/apache/spark/pull/15019
[SPARK-17387][PYSPARK] Allow passing of args to gateway to configure JVM
## What changes were proposed in this pull request?
When not using spark-submit, user configuration for the JVM is ignored when
creating the SparkContext. This is because the JVM is started before the
SparkConf object is initialized. This change allows user to specify --conf
args on the command line that will be used when launching the java gateway to
configure the JVM.
## How was this patch tested?
Started a plain Python shell with this command and verified the JVM was
configured with the correct amount of memory.
```
SPARK_HOME=$PWD PYTHONPATH=python:python/lib/py4j-0.10.3-src.zip python -
--conf spark.driver.memory=4g
```
Note, the additional '-' is needed for the cmd line args to not be
processed when invoking the interpreter.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/BryanCutler/spark
python-gateway-conf-SPARK-17387
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15019.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #15019
commit 100e442983bd5f546a8dad149543a26be90ee622
Author: Bryan Cutler
Date: 2016-09-09T00:01:27Z
[SPARK-17387] allow passing of args to gateway
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