Analyze memory leaks in long-running Ruby processes: Common vectors and remediation.

Memory leaks in Ruby typically result from accumulating objects in global scopes, continuous string interpolation to symbols, persistent class-level configurations, or unclosed file/socket handles.

Ruby handles memory management via garbage collection, but objects cannot be freed if they remain reachable from the root object space. Common memory leak vectors include: 1) Appending items continuously to global variables or class variables. 2) Using memoization patterns on instance variables belonging to singletons or long-lived service workers. 3) Generating unique symbols dynamically from user strings (pre-Ruby 2.2). 4) Retaining reference states inside long-running closures/lambdas. 5) Forgetting to close streaming IO pointers, bypassing system sweep loops.