@Ryan Chynoweth​ and @Sean Owen​ are both right, but I have a different perspective on this.Quick side note: you can also configure your cluster to execute with only a driver, and thus reducing the cost to the cheapest single VM available. In the cl...
This article is based in part on the course produced by Databricks Academy called Optimizing Apache Spark on Databricks. These courses are 100% free, but also goes a bit deeper into the considerations required for making this decision, including usag...
Databrick's curriculum team solved this problem by creating our own Maven repo and it's easier than it sounds. To do this, we took an S3 bucket, converted it to a public website, allowing for standard file downloads, and then within that bucket creat...
Apache Spark does not have the features of a relational database wherein you can do a search on a primary key for example. It is forced to read in 100% of the data (generally speaking), which hurts performance at Gigabyte+ scales and test every singl...
You would solve this just like we solve this problem for all lose string references. Namely, that is to create a constant that represents the key-value you want to ensure doesn't get mistyped.Naturally, if you type it wrong the first time, it will be...
