The remaining two WAPs ( wap-01 and wap-02 ) recalculated their session tables. CPU usage on wap-01 jumped from 18% to 32%. Well within limits. Memory stable. Error rate on the payment API… held steady at 0.01% (baseline noise).
A cluster is only as strong as its weakest node. Redundancy isn't about keeping every machine breathing; it's about keeping the right machines healthy. Sometimes, removing a server isn't a loss of capacity—it's an amputation of a chronic disease. remove web application proxy server from cluster
"Yes. Also, we have a rogue monitoring script you should know about." The remaining two WAPs ( wap-01 and wap-02
For six months, wap-03 had been a source of low-grade anxiety. Every Tuesday at 4:00 PM, latency on that node would spike by 200ms. The logs showed a cryptic error: Event ID 1309 – Connection dropped by backend . Management refused to let me take it offline. "It's redundant," my boss, Linda, had said. "Redundancy means we keep it." Memory stable
The business didn't see 0.5%. They saw "99.95% uptime." But I saw the angry tweets. I saw the support tickets: "Card declined. Please try again." Those weren't bank declines. Those were wap-03 swallowing the requests whole.
At 2:17 AM, I drained the traffic. The F5 showed wap-03 's connection count dropping from 1,200 to 0. Beautiful.
Or rather, two of the WAPs did the heavy lifting. The third one, wap-03.internal.stratus.com , was the problem child.