Viewing profile — hagen1778

I work at VictoriaMetrics. Just to clarify: VictoriaMetrics doesn't use bots for HN or for any other media for promotion. I don't know the person who you responded to. Most of the …

I am curious to see more tests on the reading path. The article mentions matching 500 series over 6h window with 1m step - and it takes 2s for warmed caches. That doesn't sound goo…

I was under impression that problem of zero injection was solved with Start Timestamp from OpenMetrics 2.0 spec - see https://prometheus.io/docs/specs/om/open_metrics_spec_2_0/#s..…

Comparing self-hosted prices with managed solutions isn't exactly apples to apples. But if you do compare, VictoriaMetrics cloud for 3Mil active series and twice higher ingestion r…

What do you use instead of Prometheus?

Disclaimer: I am affiliated with VictoriaMetrics. > The test setup is divergent from the real world (single node k8s cluster) The setup was chosen to simplify the suite, so it can …

The benchmark suite is available here: https://github.com/VictoriaMetrics/log-collectors-benchmark

Using "period" triggers me :) If Mimir is the only one, why Roblox, GrafanaLabs's customer, isn't using Mimir for monitoring? They're using VictoriaMetrics on approx scale of 5 Bil…

Just to add, VictoriaMetrics covers all 3 signals: - VictoriaMetrics for metrics. With Prometheus API support, so it integrates with Grafana using Prometheus datasource. It has its…

There are plenty of ways to scale Prometheus: - Thanos - Mimir - VictoriaMetrics All of them provide a way to scale monitoring to insane numbers. The difference is in architecture,…

I think OTEL has made things worse for metrics. Prometheus was so simple and clean before the long journey toward OTEL support began. Now Prometheus is much more complicated: - all…

My understanding is that with Prometheus+Grafana, and the rest of their stack, you can achieve the same functionality as Datadog (or even more) at much lower costs. But, it require…

Ofc you need to monitor your monitoring, because you run it. Datadog runs their own systems and monitors them, that's why they charge you so much. I barely can imagine a criticial …

> Our tests revealed that Prometheus v3.1 requires 500 GiB of RAM to handle this workload, despite claims from its developers that memory efficiency has improved in v3. AFAIK, star…

It usually comes with increase of active series and churn rate. Of course, you can scale Prometheus horizontally by adding more replicas and by sharding scrape targets. But at some…

What makes you think that about docs? Of course, it was written by developers, not tech writers. But anyway, what do you think can be improved?

We use the same approach in time series database I'm working on. While file creation and fsync aren't atomic, rename [1] syscall is. So we create a temporary file, write the data, …

ClickHouse recently got the support of TimeSeries table Engine [1]. It is marked as experimental, so yes - early stage. This engine is quite interesting, the data can be ingested v…

Here you go https://victoriametrics.com/blog/mimir-benchmark/ It is from Sep 2022, it would be great to get newer results.

> And yet people use ClickHouse quite effectively for this very problem There is no doubt that ClickHouse is a super-fast database. No one stops you from using it for this very pro…

Storing telemetry efficiently is only part of what Monitoring is supposed to do. The other part is querying: ad-hoc queries, dashboards, alerting queries executed each 15s or so. F…

> Would it be possible to do this in Postgres as well? Of course! The question is only in your requirements. Keeping a simple counter with limited cardinality should work just grea…

> mimir because of scale & self-host options Have you looked at VictoriaMetrics [0] before opting for Mimir? [0] https://victoriametrics.com/blog/mimir-benchmark/

> What is it that you think prometheus offers over other solutions? I like Prometheus and think this is a great piece of software. But even if we won't go into actual details, Prom…