grundprinzip opened a new pull request, #98:
URL: https://github.com/apache/spark-connect-go/pull/98
### What changes were proposed in this pull request?
This patch adds an example runner script and wrapping Java application to
submit an application written and compiled using Spark Connect Go to a Spark
cluster using Spark Connect.
The easiest way to test this approach is as follows:
```bash
export SPARK_HOME=<path_to_spark>
cd java
sbt package
./run.sh
../cmd/spark-connect-example-spark-session/spark-connect-example-spark-session
```
This `run.sh` wrapper script is primarily meant for illustrative purposes
and can be extended to work with any Spark distribution. Under the hood it
essentially calls `spark-submit` as follows.
```
$SPARK_HOME/bin/spark-submit \
--master local[4] \
--files $BINARY_PATH \
--conf spark.golang.binary=$BINARY_NAME \
--class org.apache.spark.golang.Runner \
--packages org.apache.spark:spark-connect_$SCALA_VERSION:$SPARK_VERSION \
target/scala-$SCALA_VERSION/sparkconnectgorunner_$SCALA_VERSION-0.1.0-SNAPSHOT.jar
```
### Why are the changes needed?
Compatibility.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Manual testing
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