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上个月随公司 #VictoriaMetrics 在 #KubeCon 上分享了如何在 #OpenTelemetry 中实践 Retroactive Sampling（回溯采样）。本着能写就不要浪费的原则，把演讲内容整理成了博客。
相比尾部采样，它能节约 60% 内存，考虑到现在内（金）存（子）的天价，应该或多或少有点意义 :)
jiekun.dev/posts/kubecon-…
相比尾部采样，它能节约 60% 内存，考虑到现在内（金）存（子）的天价，应该或多或少有点意义 :)
jiekun.dev/posts/kubecon-…
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Jiekun retweeted
I wouldn't ever believe you if, one year and a half ago, you told me that I'd be able to host Logs or Traces in @VictoriaMetrics Cloud.
Today, I'm going from SERVICE overview to an EVENT in the last span of a trace of that service with a few clicks.
Today, I'm going from SERVICE overview to an EVENT in the last span of a trace of that service with a few clicks.
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有了孩子之后才开悟的其他事情：孩子学习很快，但是需要耐心（因为还不会说话）。猛然意识到其实我对父母的沟通也很糟，他们是成年人所以我总期望他们快速理解学习我要求的，而忘了时代不一样，沉淀的经验也会带来固执。暴力沟通和缺乏耐心永远只让情况变得更糟，或许应该改变的是我，而不是他们❤️
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Jiekun retweeted
At VictoriaMetrics, we constantly benchmark our products. This helps us stay competitive and make every release better. As #VictoriaLogs reaches more teams, more of them ask us which use cases it fits, and what they would gain by switching to it. So we publish our benchmark as a anyone can run to reproduce our results, and we will keep developing it in the open.
Benchmarks that compare systems are always controversial, because each system is good at different use cases. This post only tests one case, ingesting structured #logs, where every line has named fields, as many services on Kubernetes write them. Each system runs on one machine of the same size. Query performance, cluster mode and object storage will come in later posts.
Ingestion speed alone does not tell you which system to choose, so this post also looks into their internals:
🟣 Why does #Loki ingest the most, yet take minutes for a simple dashboard query?
🟣 Why do #SigNoz and #ClickStack lag behind VictoriaLogs, though all 3 store logs in columns?
🟣 Why do #Elasticsearch and #OpenSearch need so much disk?
Learn more about #logs in this blog post:
hubs.li/Q04CQWbX0
#LogManagement
Benchmarks that compare systems are always controversial, because each system is good at different use cases. This post only tests one case, ingesting structured #logs, where every line has named fields, as many services on Kubernetes write them. Each system runs on one machine of the same size. Query performance, cluster mode and object storage will come in later posts.
Ingestion speed alone does not tell you which system to choose, so this post also looks into their internals:
🟣 Why does #Loki ingest the most, yet take minutes for a simple dashboard query?
🟣 Why do #SigNoz and #ClickStack lag behind VictoriaLogs, though all 3 store logs in columns?
🟣 Why do #Elasticsearch and #OpenSearch need so much disk?
Learn more about #logs in this blog post:
hubs.li/Q04CQWbX0
#LogManagement
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VictoriaLogs 与 Loki、Elasticsearch、OpenSearch、SigNoz、ClickStack 的日志写入性能对比 🚀 by @cuongleqq
（译自 #VictoriaMetrics 博客）
jiekun.dev/posts/structur…
（译自 #VictoriaMetrics 博客）
jiekun.dev/posts/structur…
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My talk last month at #CNCF #KCD Korea about Prometheus vs OpenTelemetry. The event setup was great with hardware far better than some flagship conferences.
youtu.be/03bWKrIEzwI
上月在首尔的 Prometheus vs OTel 演讲，主办方布置非常用心。双语字幕在 B 站：b23.tv/BV192n66REJx
youtu.be/03bWKrIEzwI
上月在首尔的 Prometheus vs OTel 演讲，主办方布置非常用心。双语字幕在 B 站：b23.tv/BV192n66REJx
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bilibili.com/video/BV1s3pv6…
#VictoriaMetrics 和 Roblox 的工程师在刚结束的 PromCon 上分享了如何“实时”检测高基数指标（而不是落盘后再扫描统计）。这个想法可能最早出现在小红书的博客，不过我们希望把它做成稍微通用的开源副产品 vmestimator，available now!
加了中文字幕希望对国内开发者友好些😀
#VictoriaMetrics 和 Roblox 的工程师在刚结束的 PromCon 上分享了如何“实时”检测高基数指标（而不是落盘后再扫描统计）。这个想法可能最早出现在小红书的博客，不过我们希望把它做成稍微通用的开源副产品 vmestimator，available now!
加了中文字幕希望对国内开发者友好些😀
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#VictoriaTraces now comes with a new built-in UI!
🚀 VictoriaTraces v0.12.0 is here!
This release introduces a new built-in UI for exploring #traces. Find a trace, drill into its spans, and see what’s slowing down your application.
VictoriaTraces is #OpenSource, so you can try it out yourself in the playground:
play-vtraces.victoriametrics.com/select/vmui/
🔎 Check out the changelog for the full list of updates, including:
🔐 Security
✨ Features
🐛 Bug fixes
docs.victoriametrics.com/victoriatraces…
#Observability #VictoriaMetrics
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Jiekun retweeted
Hallo, München! 🇩🇪
We're only 1 week away from @PromConIO 2026, the biggest conference for #Prometheus fans!
📍 Google Offices, Munich, Germany
🗓️ October 7–8
We’re looking forward to connecting with the community, showcasing our latest innovations, and discussing everything nd #traces to the latest in #OpenSource #observability.
And don’t miss this talk:
🎤 Tracking Cardinality Explosions In Flight
Presented by our Co-founder, @hagen1778, and Langson Zhang, Software Engineer at Roblox.
🗓️ October 8 at 12:15 PM CET
hubs.li/Q04xbwlc0
This talk is about estimating cardinality in flight, while the metrics are still streaming in. The estimator runs as a separate pipeline alongside the storage, not inside it. A small estimator maintains a HyperLogLog sketch for each label dimension and publishes the results as standard metrics in the Prometheus exposition format. It receives data over remote-write and is scraped like any other target. There are no queries against storage, no new query language to learn, and nothing tied to a specific vendor, so any Prometheus-compatible setup can use it.
📌 Save your seat and come say hi in Munich. See you at #PromCon! 🎉
hubs.li/Q04xbwj80
#VictoriaMetrics #MonitoringSolutions #TechEvents #Prometheus
We're only 1 week away from @PromConIO 2026, the biggest conference for #Prometheus fans!
📍 Google Offices, Munich, Germany
🗓️ October 7–8
We’re looking forward to connecting with the community, showcasing our latest innovations, and discussing everything nd #traces to the latest in #OpenSource #observability.
And don’t miss this talk:
🎤 Tracking Cardinality Explosions In Flight
Presented by our Co-founder, @hagen1778, and Langson Zhang, Software Engineer at Roblox.
🗓️ October 8 at 12:15 PM CET
hubs.li/Q04xbwlc0
This talk is about estimating cardinality in flight, while the metrics are still streaming in. The estimator runs as a separate pipeline alongside the storage, not inside it. A small estimator maintains a HyperLogLog sketch for each label dimension and publishes the results as standard metrics in the Prometheus exposition format. It receives data over remote-write and is scraped like any other target. There are no queries against storage, no new query language to learn, and nothing tied to a specific vendor, so any Prometheus-compatible setup can use it.
📌 Save your seat and come say hi in Munich. See you at #PromCon! 🎉
hubs.li/Q04xbwj80
#VictoriaMetrics #MonitoringSolutions #TechEvents #Prometheus
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I seldom code with AI, but ask it to check source code when answering questions. I want AI to verify my answers, or when I don’t know where to start so ask for clues. Claude shows $1.5–3 for each Q. Probably the 1st time quantified the cost of answers.🫤
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Jiekun retweeted
Hallo, München! 🇩🇪
#VictoriaMetrics is thrilled to be a Diamond Sponsor at @PromConIO, the biggest conference for #Prometheus fans!
📍 Google Offices, Munich, Germany
🗓️ October 7–8
We look forward to connecting with the community, showcasing our latest innovations, and rom #metrics, #logs, and #traces to the latest in #OpenSource #observability.
hubs.li/Q04xlHSb0
And don’t miss this talk:
🎤 Tracking Cardinality Explosions In Flight
Presented by our Co-founder, @hagen1778, and Langson Zhang, Software Engineer at Roblox.
🗓️ October 8 at 12:15 PM CET
hubs.li/Q04xlHVq0
This talk is about estimating cardinality in flight, while the metrics are still streaming in. The estimator runs as a separate pipeline alongside the storage, not inside it. A small estimator maintains a HyperLogLog sketch for each label dimension and publishes the results as standard metrics in the Prometheus exposition format. It receives data over remote-write and is scraped like any other target. There are no queries against storage, no new query language to learn, and nothing tied to a specific vendor, so any Prometheus-compatible setup can use it.
📌 Save your seat and come say hi in Munich. See you at #PromCon! 🎉
#VictoriaMetrics #MonitoringSolutions #TechEvents
#VictoriaMetrics is thrilled to be a Diamond Sponsor at @PromConIO, the biggest conference for #Prometheus fans!
📍 Google Offices, Munich, Germany
🗓️ October 7–8
We look forward to connecting with the community, showcasing our latest innovations, and rom #metrics, #logs, and #traces to the latest in #OpenSource #observability.
hubs.li/Q04xlHSb0
And don’t miss this talk:
🎤 Tracking Cardinality Explosions In Flight
Presented by our Co-founder, @hagen1778, and Langson Zhang, Software Engineer at Roblox.
🗓️ October 8 at 12:15 PM CET
hubs.li/Q04xlHVq0
This talk is about estimating cardinality in flight, while the metrics are still streaming in. The estimator runs as a separate pipeline alongside the storage, not inside it. A small estimator maintains a HyperLogLog sketch for each label dimension and publishes the results as standard metrics in the Prometheus exposition format. It receives data over remote-write and is scraped like any other target. There are no queries against storage, no new query language to learn, and nothing tied to a specific vendor, so any Prometheus-compatible setup can use it.
📌 Save your seat and come say hi in Munich. See you at #PromCon! 🎉
#VictoriaMetrics #MonitoringSolutions #TechEvents
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时至 2026 年了我还在用 M1 的 Macbook Pro，也是 AC 的最后几个月，想了很久要不要换，不过 Mac 已经涨价了，其次也没有什么卡顿，最后决定还是不换，立省几千块钱，打算把这台用到苹果配件断供（有人知道要多久吗？5 年？）。好在 VictoriaMetrics 编译起来很快，要是换个 Java 商城估计都换了几台了
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不过可能另一个原因是手上有两台5900x / 7900x 的 12 核台式机，好像笔记本也没有太大的存在感。Ubuntu simply runs better than MacOS.
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最近受困于血糖升高，可能是之前吃得不太控制，特别沮丧难过，改变饮食习惯的时候餐间还容易肚子饿。最沮丧的莫过于本来就已经减重并且长期呆在健身房了，还是得了这个毛病... 网友们一定要管住嘴多吃点健康的，少吃零食和加餐和饮料 QAQ 😭 已经焦虑到影响工作生活了
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#KubeCon Japan Day 2, interesting counter aggregation talk, and blue hours in Yokohama. Waiting at airport, on my way back ☺️
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#KubeCon Day 1 in Yokohama. Haven’t had a chance to explore the city yet, and it’s almost time to head back. Looking forward to Reddit's talk tomorrow.
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“The efficiency edge (of #VictoriaMetrics) is real and independently corroborated (Criteo, Prezi), not just vendor benchmarks.” ❤️
jorijn.com/en/blog/victor…
jorijn.com/en/blog/victor…
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Jaeger now has native support for ClickHouse, starting from v2.18. It's good to compare the performance with VictoriaTraces.
jaegertracing.io/docs/2.18/stor…
jaegertracing.io/docs/2.18/stor…
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