Weekly Digest #87

Articles Using Back-Door Adjustment Causal Analysis to Measure Pre-Post Effects

Articles Using Back-Door Adjustment Causal Analysis to Measure Pre-Post Effects

Articles Lessons Learned From Running Apache Airflow at Scale File Access Can Be Slow When Using Cloud Storage Increasing Volumes Of Metadata Can Degrade Airflow Operations DAGs Can Be Hard To Associate With Users And Teams DAG Authors Have A Lot Of Power Ensuring A Consistent Distribution Of Load Is Difficult …

Articles Browser In The Browser (BITB) Attack Using JQuery to animate fake pop-up windows User can mitigate it by dragging the window to the edge to check if the window is a real popup or fake popup Watch Your Step: The Prevalence of IDN Homograph Attacks the unicode form of the…

Articles Still No Consensus On Testing Private Methods Here’s the approach the author proposes: try to have as slim a public interface as possible in your classes, by defaulting every method to private. If you find yourself wanting to test a set of private methods directly, seriously consider extracting a class…

Articles Your migration probably isn’t failing due to insufficient staffing. Debugging a migration Where are folks getting stuck in the migration process? Are folks not starting the migration? What cohorts are and aren’t migrating successfully? For teams that aren’t migrating, what are they doing instead? How is that going? For teams…

Articles Trunk and Branches Model Rules of scaling infrastructure organization Rule One: You must maintain service qualtiy high enough that your leadership team doesn’t throw you out Rule Two: You must maintain a sizable investment budget to prevent exponential problems from sinking your organization Corollary One: If morale is too low…

Articles Fail Open and Layer Policy a sufficiently generic implementation can last forever, but intentional restrictions tend to evolve rapidly over time; if infrastructure maintainers want to avoid rewriting their systems every year or two, then we need to be able to tweak policies to enforce restrictions while independently maintaining and…