Apache Spark Tuning: Killing Data Skew & Mastering Broadcast Joins
There is no pain in Data Engineering quite like watching a Spark job race to 99% completion in 5 minutes, only to hang on the final task for 4 hou…
Solving GraphQL N+1 & Query Complexity: Production Guide
I recently watched a promising startup's GraphQL API crumble under a modest load of 500 concurrent users. The infrastructure was solid, but th…
Eliminating iOS Memory Leaks: Production Debugging with Xcode Instruments
I recently debugged a chat application that crashed exclusively after 45 minutes of usage. The culprit wasn't a complex algorithm but a silent a…
Eliminating DynamoDB Hot Partition Throttling with Write Sharding Strategies
If you are reading this, you are likely staring at a flood of ProvisionedThroughputExceededException errors in your CloudWatch logs. We encountered…