💡 Spark Caching: When It Helps and When It Hurts Your Performance 🔧
Ever had a Spark job that keeps re-reading the same data over and over? You might need caching. But cache at the wrong time, and you’ll actually slow things down. Here’s when caching helps, when it doesn’t, and how to use it right. This blog will be short but sweet! 🔍 What is Caching? Think of caching like keeping your frequently used files on your desk instead of walking to the filing cabinet every time you need them. ...