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udacity_sf_crimes

Udacity Nano Degree

Provide statistical analyses of the data using Apache Spark Structured Streaming

How did changing values on the SparkSession property parameters affect the throughput and latency of the data?

maxRatePerPartition: This worked when I increaded the number of topic partitions maxOffsetsPerTrigger: This improved the throughput. spark.sql.shuffle.partitions

spark.executor.memory spark.executor.cores spark.driver.memory numInputRecords inputRowsPerSecond processedRowsPerSecond

What were the 2-3 most efficient SparkSession property key/value pairs? Through testing multiple variations on values, how can you tell these were the most optimal?

maxRatePerPartition : 100 maxOffsetsPerTrigger: 100 spark.sql.shuffle.partitions: 100

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Provide statistical analyses of the data using Apache Spark Structured Streaming

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