Spark
Tuning Apache Spark
Dynamic Executor Allocation
Better Resource utilization
Good for multi-tenant environment
spark.dynamicAllocation.enabled=true
spark.dynamicAllocation.executpeIdleTimeout=2m
spark.dynamicAllocation.minExecutors=1
spark.dynamicAllocation.maxExecutors=2000
spark application information can be seen from Spark Context WebUI
Client Mode -> first application statrts at port 4040
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