Project
ClickHouse is an open-source, column-oriented database built for fast OLAP analytics, also offered as a managed cloud service.
ClickHouse traced an extra 32 ms on simple SELECT queries to metadata packets that overflow a TCP congestion window reset by idle time. It reduced the tail latency by batching those packets at the application layer.
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Cloudflare's Data team says its pipeline changes since 2022 are worth 2.5 years of deferred hardware expansion. By the post's own figures, the 2022 schema split and the 2024 zstd switch account for about 22 months of that.
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Postman says Agent Mode, its AI agent for 40 million developers, made more tool-selection errors once the model could see more than about 40 tools. The team now limits the model to the tools each task needs, and found the harder work in APIs built around its interface.
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Microsoft made Fabric IQ the default business context for Microsoft 365 Copilot at FabCon Barcelona and opened it to outside agents over MCP. The metric definitions teams keep in Power BI semantic models now shape what those agents answer.
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One developer's self-hosted Langfuse traced 91 of 1,387 agent model calls in 14 days because only one of ten profiles had its keys. The plugin fails open by design, so nine untraced profiles, one a coding agent with more than five times the traced calls, raised no error.
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LiteLLM launched Lens on September 30, a tool that uses AI agents to find recurring failures across agent traces sent through its model gateway. Customers host the analyzer and its databases, and the 200,000-trace volume CTO Ishaan Jaffer cites is a future target Lens has not been measured against.
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Most of what breaks between 26.3 and 26.8 was shipped by four versions nobody plans to deploy. One of those items has to be cleared on the old server, because the new one refuses to start with it in the config.
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ClickHouse's own system logs grow unchecked by default under self-hosted Langfuse and SigNoz, with one Langfuse text_log reaching 59.20 GiB. A dev.to guide confirms the cause with one read-only query and caps regrowth with per-log TTLs.
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ClickHouse records a disk for every part, so a TTL rule can age old months onto S3 with the queries untouched. The lab behind the write-up substitutes MinIO for S3, so the latency half of the trade is still unmeasured.
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Checkly's Results Daemon handles about 92 million messages a day. The Go rewrite, written by Claude Code, shipped with zero incidents and a 70% cut in running pods after the team spent its first effort on a black-box parity harness.
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ClickHouse's own guide says Postgres replicas inherit the primary's row-oriented limits, and MotherDuck models a 50ms dashboard aggregation growing to five seconds at tens of millions of rows before it times out.
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A retrospective on oioannou.com describes an agent that began with read-only ClickHouse access in January 2026, grew into Slack, Linear, PostHog and Grafana through thin CLI wrappers, and now consumes billions of tokens a month.
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Ofcom's photosensitive-epilepsy rule is written in seconds, so the rate you extract frames at ends up inside the specification. The same overlooked parameter broke the SQL detector first and the model that adjudicates its output two days later.
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DeFiLlama now marks the two labs at $2.28 trillion against an implied $544 billion a year ago, which leaves every bank pitching an AI listing to price against a reference no public order book has tested.
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Bronto's pitch is that observability's next fight is over storage economics rather than dashboards. The interesting part is the bar its co-CEO sets: better than 2x cheaper, or do not bother.
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The ClickHouse account credits 16x faster queries and 100 million events a second at Black Friday peak. It puts no dollar figure on either side of the trade.
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Fulham's front-of-shirt went from a bookmaker to ClickHouse. The company's own account of the deal is a price tier, not a marketing awakening.
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The deal puts CUDA kernel-level continuous profiling inside an OpenTelemetry-native platform. It also attaches that capability to a database replacement the buyer did not ask for.
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ClickHouse has acquired Langfuse, folding the leading open-source LLM observability project into the database it already ran on. Teams that standardized on it inherit a lock-in decision.
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An engineer deploying SigNoz into an isolated Docker network reports that ClickHouse 25.5.6 rejects the old config mount, and the OTel collector will not boot before a schema migrator has finished.
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