High Volume Ingest

High Volume Ingest

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 they’re often just...
Thank you, ZFS

Thank you, ZFS

If you’ve had a technical conversation with anyone at Circonus, there are very likely two technologies that came up: ZFS and DTrace. While we love DTrace, ZFS has literally changed our world and made some personal “whoopsies” out of what could have been otherwise...
Some Like It Flat

Some Like It Flat

JSON rules the world, much to our collective chagrin. I’ve mentioned before the atrocious shortcomings of JSON as a format and I feel deeply saddened that the format has taken the world by storm. However, it is here and we must cope… but not always. Like every other...
Post-Mortem 2017.1.12.1

Post-Mortem 2017.1.12.1

TL;DR: Some users received spurious false alerts for approximately 30 minutes, starting at 2017-01-12 22:10 UTC. It is our assessment that no expected alerts were missed. There was no data loss. Overview Due to a software bug in the ingestion pipeline specific to...