Cover art for Never Enough

WPA3-KCIA Radio · Single

Never Enough

Jarrett Heintz · 2:54

  • Networking
  • Security Culture
  • Fundamentals
  • Everything, A to Z
  • Wire & Packet
  • Human Layer
Play on WPA3-KCIA Radio

Lyrics

  1. CHANT HOOK (repeat between sections)
  2. Never enough.
  3. Too much load, not enough stuff.
  4. Never enough.
  5. Gotta scale out when the traffic gets tough.
  6. Never enough.
  7. Add more nodes or it’s gonna get rough.
  8. Never enough.
  9. If you wanna keep flowin’—scale out or blow up.
  10. INTRO – When It Breaks
  11. (spoken or slow-sung)
  12. We thought one server could carry the day…
  13. Requests came in—and blew it away.
  14. We scaled up—more RAM, more cores—
  15. But the CPU screamed as it hit the floor.
  16. Vertical scaling... that’s scale up,
  17. Add power to one—'til it’s had enough.
  18. But what if traffic just keeps growing?
  19. What if you can’t keep the ceiling from showing?
  20. Never enough...
  21. VERSE 1 – Scale-Out and Load Balancing
  22. That’s when you scale out, not just up,
  23. Add more servers, spread the cup.
  24. A load balancer watches, routs each hit,
  25. And suddenly traffic fits—bit by bit.
  26. Like checkout lanes at the grocery store,
  27. You’re not fixing failure—you’re adding more.
  28. Each shopper (request) finds a lane that’s best,
  29. Split the crowd—ease the stress.
  30. Never enough...
  31. VERSE 2 – Load Balancer Types
  32. We’ve got Layer 4—TCP all the way,
  33. Fast and light, connection-based play.
  34. Then Layer 7—deep in the stack,
  35. Knows the URL, sends the right pack.
  36. Round robin’s fair, but dumb as bricks,
  37. Least connections makes smarter picks.
  38. Geo DNS points you to a zone,
  39. While app-aware balancers read the tone.
  40. Some balance requests like queues at a gate,
  41. Some choose the best one based on load rate.
  42. Whether by IP, cookie, or region alone—
  43. They guide the traffic, pick the rout that’s known.
  44. Never enough...
  45. VERSE 3 – Failover (Availability)
  46. But even with balance, things can go wrong,
  47. A node might crash—it won’t last long.
  48. That’s not a crowd—it’s a flatline drop,
  49. You need failover before all stops.
  50. The SAN holds the script, behind the stage,
  51. Each node knows its role, line for line, page by page.
  52. If the lead server fails mid-showtime call,
  53. An understudy node takes over it all.
  54. The front-of-house? That’s the VIP—
  55. To the crowd, it’s seamless—just like it should be.
  56. Never enough...
  57. FINAL CHORUS – Blended Glory
  58. Never enough check lanes—scale out the strain,
  59. Take a page from the script when servers go insane.
  60. Like an understudy steps to save the play,
  61. Highly available resilience slay.
  62. And maybe you’ll keep that S–L–leigh. ?