Topic
Databases and downsampling/rollup patterns for time-series workloads, including TimescaleDB, InfluxDB, and ClickHouse.
Ridge Security disclosed CVE-2026-42542, an integer underflow that lets one unauthenticated packet to TCP/6030 crash TDengine's taosd process. Repeated packets keep it in a restart loop, and TDengine fixed it in version 3.4.1.6.
Reality
Ridge Security disclosed CVE-2026-42542, a flaw that lets an unauthenticated attacker crash a TDengine server with one malformed packet on port 6030. A patch shipped in 3.4.1.6, and the only proven payoff is a crash.
Reality
Gleb Tcivie's open source monitoring tool outgrew Prometheus once node identity in metric labels blew past the 10-second scrape budget. It now runs on one Postgres database with TimescaleDB.
Reality
The new DeferredChunkAppend node leaves a hypertable unexpanded until execution, so planning time no longer grows with chunk count. The same release drops PostgreSQL 15, which puts that payoff behind a database upgrade.
Reality
A Tiger Data explainer traces the gap to late-arriving rows, and to the fact that four refresh strategies filed under one label disagree precisely there.
Reality