Troubleshoot Custom Spark Jobs
To troubleshoot problems with a custom job, start by looking for errors in the script-job driver log, /opt/fusion/latest.x/var/log/api/spark-driver-launcher.log
(on Unix) or C:\lucidworks\var\fusion\latest.x\var\log\api\spark-driver-launcher.log
(on Windows).
For general Spark job troubleshooting steps, see Spark troubleshooting.