2 docs tagged with "rollback"

AWS CodeDeploy deep dive for DVA-C02. Deployment groups, lifecycle hooks, rollbacks, appspec.yml for EC2, Lambda, and ECS, blue/green deployments, deployment configurations, and traffic shifting strategies.

Physical mechanisms of long-running transaction failures: Undo tablespace and History List Length (HLL) bloat, the single-threaded rollback trap, the critical difference between KILL QUERY and KILL CONNECTION, and the Metadata Lock (MDL) queue cascade exhausting connection pools.