For the first time, a software load balancer exceeds 2-million RPS on a single Arm instance. A few weeks ago, while I was working on an HAProxy issue related to thread locking contention, I found myself running some tests on a server with an 8-core, 16-thread Intel Xeon W2145 processor that we have in our lab. Although my intention wasn’t to benchmark the proxy, I observed HAProxy reach 1.03 million HTTP requests per second.
One of the big questions in monitoring can be summed up as: Who watches the watchers? If you rely on Prometheus for your monitoring, and your monitoring fails, how will you know? The answer is a concept known as metamonitoring. At Grafana Labs, a handful of geographically distributed metamonitoring Prometheus servers monitor all other Prometheus servers and each other cross-cluster, while their alerting chain is secured by a dead-man’s-switch-like mechanism.
Any production application needs to be monitored for its uptime. Let’s say you’ve developed a stock market statistics application, for example, using Spring Boot for your client. This application has to be up all the time while the stock market is open. If it’s down at a crucial time, it could mean huge losses for relevant stakeholders.
Being mobile is in large part about communication. Our app for mobile access to Alloy Navigator™ ITSM platform gives IT people the freedom to communicate with customers and teammates, notify stakeholders, submit approval requests, assign work, and escalate incidents from anywhere, anytime. All those communication tasks typically involve choosing the right person from a list.
