I want to print some logs in transformation mapPartitions to logs the
internal working of function.
I have used following techniques without any success.
1. System.out.println()
2. System.err.println()
3. Log4j - logger.info
4. Log4j - logger.debug
My code for mapPartitions is similar to this
<
https://github.com/broadinstitute/gatk/blob/master/src/main/java/org/broadinstitute/hellbender/tools/spark/bwa/BwaSparkEngine.java#L103>
.
Is there any way to print logs on console in mapPartitions. Thanks for your
time and helping me in advance.
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