Education

The Linux kernel is an abundant component of modern IT systems. It provides the critical services of hardware abstraction and time-sharing to applications. The classical metrics for monitoring Linux are among the most well known […]

There are a lot of interesting monitoring tasks, that can be facilitated with a Raspberry Pi (e.g. here, there). Circonus does not officially support “Raspbian Linux on armv6/v7” as a deployment target, but given the […]

Like it or not, high-volume time series databases face one relentless challenge: ingestion. Unlike many other databases, TSDBs tend to record things that have already happened. Records are inserted with “past time stamps” (even if […]

At Circonus we are collecting a number of metrics about block devices. An interesting one is the average length of the request queue, which is exposed by iostat[1]: aqu-sz The average queue length of the […]

I’ve said this before: elegant code is pedagogical. That is, elegant code is designed to teach its readers about the concepts and relationships in the problem domain that the code addresses, with as little noise […]

Building a Raspberry PI Circonus AlertBot To a Site Reliability Engineer, one of the most important things is making sure that you get alerts as soon as events happen. Circonus provides many contact options, such […]

Recently, one of our on-premises customers experienced a system crash with one of their metric-storage nodes. Circonus offers the option to operate a complete, private copy of our product on a customer’s own premises. This […]

Every once in awhile, you find yourself in a rabbit hole, unsure of where you are or what time it might be. In this post, I’ll show you a computing adventure about time through the […]