Big Data Technology & Architecture

Jun 24, 2019 · Big Data

Resetting Daily Page View Counters in Spark Streaming Using mapWithState and Timeout

The article explains how to use Spark Streaming's mapWithState operator to count product page views, addresses the issue of daily PV reset by presenting two solutions—restarting the streaming job via a scheduled script and configuring a StreamingContext timeout—plus an alternative approach using Redis for external state management.