Cees Bos 👨🏻💻 📉🔍📈 ✅
@ceesbos.nl
Observability enthusiast | Grafana Champion | Java Developer
Always looking for ways to improve software with better observability and what new insights can be gained.
🖥️ @openvalue.eu as a software & observability engineer and SRE.
📖 ceesbos.nl
Always looking for ways to improve software with better observability and what new insights can be gained.
🖥️ @openvalue.eu as a software & observability engineer and SRE.
📖 ceesbos.nl
Pinned
Cees Bos 👨🏻💻 📉🔍📈 ✅
@ceesbos.nl
· May 2
🚨 Code Challenge Alert! The first Application Observability Code Challenge explained in a step-by-step approach.
#OpenTelemetry helped to increase the observability, #Grafana helped to visualise it.
👉 goto.ceesbos.nl/bs-c1s
@grafana.bsky.social @opentelemetry.io #Observability
#OpenTelemetry helped to increase the observability, #Grafana helped to visualise it.
👉 goto.ceesbos.nl/bs-c1s
@grafana.bsky.social @opentelemetry.io #Observability
🚀 New challenge alert! Can you spot performance issues when using virtual threads? Observability Code Challenge 2 compares regular threads vs virtual threads in Java 21 & 25 using OpenTelemetry and Grafana.
👉 goto.ceesbos.nl/ghch02
#Java #Observability #VirtualThreads #OpenTelemetry #AOCC
👉 goto.ceesbos.nl/ghch02
#Java #Observability #VirtualThreads #OpenTelemetry #AOCC
October 10, 2025 at 8:39 PM
🚀 New challenge alert! Can you spot performance issues when using virtual threads? Observability Code Challenge 2 compares regular threads vs virtual threads in Java 21 & 25 using OpenTelemetry and Grafana.
👉 goto.ceesbos.nl/ghch02
#Java #Observability #VirtualThreads #OpenTelemetry #AOCC
👉 goto.ceesbos.nl/ghch02
#Java #Observability #VirtualThreads #OpenTelemetry #AOCC
Today I had the honor to speak at @devoxx.com about "How I solved production issues with OpenTelemetry (and how you can too)"
📷 Photos taken by Dimitris Doutsiopoulos & @johanhutting.bsky.social
In case you missed it: slides, code examples and more is available
goto.ceesbos.nl/devoxx2025
📷 Photos taken by Dimitris Doutsiopoulos & @johanhutting.bsky.social
In case you missed it: slides, code examples and more is available
goto.ceesbos.nl/devoxx2025
October 6, 2025 at 6:28 PM
Today I had the honor to speak at @devoxx.com about "How I solved production issues with OpenTelemetry (and how you can too)"
📷 Photos taken by Dimitris Doutsiopoulos & @johanhutting.bsky.social
In case you missed it: slides, code examples and more is available
goto.ceesbos.nl/devoxx2025
📷 Photos taken by Dimitris Doutsiopoulos & @johanhutting.bsky.social
In case you missed it: slides, code examples and more is available
goto.ceesbos.nl/devoxx2025
Just prepared the last pieces for my presentation at @devoxx.com
I am ready for it, so let's go
#devoxx
I am ready for it, so let's go
#devoxx
October 6, 2025 at 9:59 AM
Just prepared the last pieces for my presentation at @devoxx.com
I am ready for it, so let's go
#devoxx
I am ready for it, so let's go
#devoxx
Next week #Devoxx Belgium! I am preparing my talk for next week at the moment. Are you joining as well? Hope to see you there @devoxx.com!
m.devoxx.com/events/dvbe2...
m.devoxx.com/events/dvbe2...
September 29, 2025 at 7:38 PM
Next week #Devoxx Belgium! I am preparing my talk for next week at the moment. Are you joining as well? Hope to see you there @devoxx.com!
m.devoxx.com/events/dvbe2...
m.devoxx.com/events/dvbe2...
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
Check out this week's o11y newsletter with excellent OpenTelemetry hands-on material and more:
o11y.news/2025-05-19/
#observability
o11y.news/2025-05-19/
#observability
May 19, 2025 at 6:28 PM
Check out this week's o11y newsletter with excellent OpenTelemetry hands-on material and more:
o11y.news/2025-05-19/
#observability
o11y.news/2025-05-19/
#observability
Today I had great time at #JCON2025 presenting 'How I Solved Production Issues with OpenTelemetry (And How You Can Too)".
The @jcon.one conference is really cool to join and talk with fellow developers and share thoughts.
Missed the talk? Check the slides, code and more goto.ceesbos.nl/jcon2025
The @jcon.one conference is really cool to join and talk with fellow developers and share thoughts.
Missed the talk? Check the slides, code and more goto.ceesbos.nl/jcon2025
May 13, 2025 at 3:50 PM
Today I had great time at #JCON2025 presenting 'How I Solved Production Issues with OpenTelemetry (And How You Can Too)".
The @jcon.one conference is really cool to join and talk with fellow developers and share thoughts.
Missed the talk? Check the slides, code and more goto.ceesbos.nl/jcon2025
The @jcon.one conference is really cool to join and talk with fellow developers and share thoughts.
Missed the talk? Check the slides, code and more goto.ceesbos.nl/jcon2025
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
Excited for #JCON EUROPE 2025? See Cees Bos at #JCON2025 in Cologne talking about 'How I #Solved Production #Issues with #OpenTelemetry (And How You Can Too)'
Ensuring the reliability of your #Java applications is #critical …
Get your free #JUG Ticket: www.jcon.one
Ensuring the reliability of your #Java applications is #critical …
Get your free #JUG Ticket: www.jcon.one
March 23, 2025 at 4:00 PM
Excited for #JCON EUROPE 2025? See Cees Bos at #JCON2025 in Cologne talking about 'How I #Solved Production #Issues with #OpenTelemetry (And How You Can Too)'
Ensuring the reliability of your #Java applications is #critical …
Get your free #JUG Ticket: www.jcon.one
Ensuring the reliability of your #Java applications is #critical …
Get your free #JUG Ticket: www.jcon.one
🚨 Code Challenge Alert! The first Application Observability Code Challenge explained in a step-by-step approach.
#OpenTelemetry helped to increase the observability, #Grafana helped to visualise it.
👉 goto.ceesbos.nl/bs-c1s
@grafana.bsky.social @opentelemetry.io #Observability
#OpenTelemetry helped to increase the observability, #Grafana helped to visualise it.
👉 goto.ceesbos.nl/bs-c1s
@grafana.bsky.social @opentelemetry.io #Observability
May 2, 2025 at 2:55 PM
🚨 Code Challenge Alert! The first Application Observability Code Challenge explained in a step-by-step approach.
#OpenTelemetry helped to increase the observability, #Grafana helped to visualise it.
👉 goto.ceesbos.nl/bs-c1s
@grafana.bsky.social @opentelemetry.io #Observability
#OpenTelemetry helped to increase the observability, #Grafana helped to visualise it.
👉 goto.ceesbos.nl/bs-c1s
@grafana.bsky.social @opentelemetry.io #Observability
Today I am preparing for #JCON
Within two weeks I will be presenting how #OpenTelemetry can help you with your observability challenges. I am looking forward to the conference!
@jcon.one
Within two weeks I will be presenting how #OpenTelemetry can help you with your observability challenges. I am looking forward to the conference!
@jcon.one
May 1, 2025 at 10:45 AM
Today I am preparing for #JCON
Within two weeks I will be presenting how #OpenTelemetry can help you with your observability challenges. I am looking forward to the conference!
@jcon.one
Within two weeks I will be presenting how #OpenTelemetry can help you with your observability challenges. I am looking forward to the conference!
@jcon.one
Really nice article: thenewstack.io/observabilit... by @martindotnet.bsky.social
This is exactly how I see this as well. Observability is very much an 'every engineer's job'!
This is exactly how I see this as well. Observability is very much an 'every engineer's job'!
Observability: Every Engineer’s Job, Not Just Ops’ Problem
Observability is more about software engineering than it is about operations.
thenewstack.io
March 24, 2025 at 7:23 PM
Really nice article: thenewstack.io/observabilit... by @martindotnet.bsky.social
This is exactly how I see this as well. Observability is very much an 'every engineer's job'!
This is exactly how I see this as well. Observability is very much an 'every engineer's job'!
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
🚨 There has been a breakthrough in the world of hash tables 🚨
A paper that disproves the longstanding conjecture that uniform hashing is optimal.
"Optimal Bounds for Open Addressing Without Reordering" by Martín Farach-Colton, Andrew Krapivin, William Kuszmaul
arxiv.org/html/2501.02...
A paper that disproves the longstanding conjecture that uniform hashing is optimal.
"Optimal Bounds for Open Addressing Without Reordering" by Martín Farach-Colton, Andrew Krapivin, William Kuszmaul
arxiv.org/html/2501.02...
Optimal Bounds for Open Addressing Without Reordering
arxiv.org
February 14, 2025 at 11:32 AM
🚨 There has been a breakthrough in the world of hash tables 🚨
A paper that disproves the longstanding conjecture that uniform hashing is optimal.
"Optimal Bounds for Open Addressing Without Reordering" by Martín Farach-Colton, Andrew Krapivin, William Kuszmaul
arxiv.org/html/2501.02...
A paper that disproves the longstanding conjecture that uniform hashing is optimal.
"Optimal Bounds for Open Addressing Without Reordering" by Martín Farach-Colton, Andrew Krapivin, William Kuszmaul
arxiv.org/html/2501.02...
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
Check out this week's o11y newsletter with really excellent contributions from an o11y challenge to instrumentation tips to tooling:
o11y.news/2025-01-20/
#observability #opentelemetry
o11y.news/2025-01-20/
#observability #opentelemetry
January 20, 2025 at 4:34 PM
Check out this week's o11y newsletter with really excellent contributions from an o11y challenge to instrumentation tips to tooling:
o11y.news/2025-01-20/
#observability #opentelemetry
o11y.news/2025-01-20/
#observability #opentelemetry
🚨 Code Challenge Alert! 🚨Dive into the first Application Observability Challenge 🛠️ Uncover unexpected behavior using test scripts and observability data, then enhance it to prove your fix! Ready to debug? 🤔👩💻👨💻
https://goto.ceesbos.nl/c1
#CodeChallenge #Observability #OpenTelemetry
https://goto.ceesbos.nl/c1
#CodeChallenge #Observability #OpenTelemetry
January 17, 2025 at 1:51 PM
🚨 Code Challenge Alert! 🚨Dive into the first Application Observability Challenge 🛠️ Uncover unexpected behavior using test scripts and observability data, then enhance it to prove your fix! Ready to debug? 🤔👩💻👨💻
https://goto.ceesbos.nl/c1
#CodeChallenge #Observability #OpenTelemetry
https://goto.ceesbos.nl/c1
#CodeChallenge #Observability #OpenTelemetry
📣 Application Observability Code Challenges are coming soon!
Goal: develop an observability mindset and practice with your observability tools.
https://goto.ceesbos.nl/aocc
The first challenge is being prepared! Stay tuned!
#AOCC #OpenTelemetry
Goal: develop an observability mindset and practice with your observability tools.
https://goto.ceesbos.nl/aocc
The first challenge is being prepared! Stay tuned!
#AOCC #OpenTelemetry
January 10, 2025 at 12:59 PM
📣 Application Observability Code Challenges are coming soon!
Goal: develop an observability mindset and practice with your observability tools.
https://goto.ceesbos.nl/aocc
The first challenge is being prepared! Stay tuned!
#AOCC #OpenTelemetry
Goal: develop an observability mindset and practice with your observability tools.
https://goto.ceesbos.nl/aocc
The first challenge is being prepared! Stay tuned!
#AOCC #OpenTelemetry
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
🎉 Wicked! #GrafanaCON 2025 is headed to Seattle (Emerald City) from May 6-8! As a bonus, we’ve added a full day of workshops on May 6.
We had hundreds of people on our waitlist last time, so sign up to receive notifications tickets go on sale: grafana.com/events/grafa...
We had hundreds of people on our waitlist last time, so sign up to receive notifications tickets go on sale: grafana.com/events/grafa...
December 10, 2024 at 11:01 PM
🎉 Wicked! #GrafanaCON 2025 is headed to Seattle (Emerald City) from May 6-8! As a bonus, we’ve added a full day of workshops on May 6.
We had hundreds of people on our waitlist last time, so sign up to receive notifications tickets go on sale: grafana.com/events/grafa...
We had hundreds of people on our waitlist last time, so sign up to receive notifications tickets go on sale: grafana.com/events/grafa...
#GrafanaCON 2025 has been announced by @grafana.bsky.social 📣
This reminds me of my own talk back in April, it was a great honour to speak at GrafanaCON 2024 see https://goto.ceesbos.nl/gc24
I am looking for to this event in 2025! See https://grafana.com/events/grafanacon/
Maybe on stage again??
This reminds me of my own talk back in April, it was a great honour to speak at GrafanaCON 2024 see https://goto.ceesbos.nl/gc24
I am looking for to this event in 2025! See https://grafana.com/events/grafanacon/
Maybe on stage again??
December 11, 2024 at 2:23 PM
#GrafanaCON 2025 has been announced by @grafana.bsky.social 📣
This reminds me of my own talk back in April, it was a great honour to speak at GrafanaCON 2024 see https://goto.ceesbos.nl/gc24
I am looking for to this event in 2025! See https://grafana.com/events/grafanacon/
Maybe on stage again??
This reminds me of my own talk back in April, it was a great honour to speak at GrafanaCON 2024 see https://goto.ceesbos.nl/gc24
I am looking for to this event in 2025! See https://grafana.com/events/grafanacon/
Maybe on stage again??
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
🎉 Introducing the #OpenTelemetry Report. This new report presents insights around #OTel's rapid growth, central value, instrumentation, community engagement, and developer traction.
Take a look (no form required!): https://grafana.com/opentelemetry-report
See a few charts and findings in 🧵.
Take a look (no form required!): https://grafana.com/opentelemetry-report
See a few charts and findings in 🧵.
December 9, 2024 at 6:36 PM
🎉 Introducing the #OpenTelemetry Report. This new report presents insights around #OTel's rapid growth, central value, instrumentation, community engagement, and developer traction.
Take a look (no form required!): https://grafana.com/opentelemetry-report
See a few charts and findings in 🧵.
Take a look (no form required!): https://grafana.com/opentelemetry-report
See a few charts and findings in 🧵.
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
I learned more about Spring Modulith and OpenTelemetry at the @openvalue.eu Utrecht meetup today. Thanks 🙏 @ceesbos.nl and Jos Roseboom and the organisers.
December 3, 2024 at 10:07 PM
I learned more about Spring Modulith and OpenTelemetry at the @openvalue.eu Utrecht meetup today. Thanks 🙏 @ceesbos.nl and Jos Roseboom and the organisers.
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
Amazed by the detective skills of @ceesbos.nl shown in his observability talk #opentelemetry
December 3, 2024 at 7:18 PM
Amazed by the detective skills of @ceesbos.nl shown in his observability talk #opentelemetry
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
Second talk at the @OpenValue.eu Utrecht meetup: @ceesbos.nl talking about solving issues with OpenTelemetry 👌🏻
December 3, 2024 at 7:00 PM
Second talk at the @OpenValue.eu Utrecht meetup: @ceesbos.nl talking about solving issues with OpenTelemetry 👌🏻
❓ Do you recognise this❓
Just before a demo, update to the latest version, start the new version and 💥
But that is the good thing about #observability and #OpenTelemetry, you can find 🔍 the problem and fix it 😅
This is why I love #observability: it helps to fix problems faster 🏎️
Just before a demo, update to the latest version, start the new version and 💥
But that is the good thing about #observability and #OpenTelemetry, you can find 🔍 the problem and fix it 😅
This is why I love #observability: it helps to fix problems faster 🏎️
November 29, 2024 at 2:43 PM
❓ Do you recognise this❓
Just before a demo, update to the latest version, start the new version and 💥
But that is the good thing about #observability and #OpenTelemetry, you can find 🔍 the problem and fix it 😅
This is why I love #observability: it helps to fix problems faster 🏎️
Just before a demo, update to the latest version, start the new version and 💥
But that is the good thing about #observability and #OpenTelemetry, you can find 🔍 the problem and fix it 😅
This is why I love #observability: it helps to fix problems faster 🏎️
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
Does your observability practice incorporate #Prometheus? #OTel? Both? Let us know in the 2025 Observability Survey.
It only takes 5 minutes and you could win a #Grafana swag pack!
https://grafana.com/observability-survey/?mdm=social&src=ma&camp=obs-survey-2025
It only takes 5 minutes and you could win a #Grafana swag pack!
https://grafana.com/observability-survey/?mdm=social&src=ma&camp=obs-survey-2025
November 26, 2024 at 9:30 AM
Does your observability practice incorporate #Prometheus? #OTel? Both? Let us know in the 2025 Observability Survey.
It only takes 5 minutes and you could win a #Grafana swag pack!
https://grafana.com/observability-survey/?mdm=social&src=ma&camp=obs-survey-2025
It only takes 5 minutes and you could win a #Grafana swag pack!
https://grafana.com/observability-survey/?mdm=social&src=ma&camp=obs-survey-2025
Reposted by Cees Bos 👨🏻💻 📉🔍📈 ✅
Wrote about the @opentelemetry.io work i've been doing over the last year: grafana.com/blog/2024/11...
How to use OpenTelemetry and Grafana Alloy to convert delta to cumulative at scale | Grafana Labs
With OpenTelemetry and Grafana Alloy, it's now easier than ever to send delta samples to cumulative backends such as Prometheus or Grafana Cloud.
grafana.com
November 26, 2024 at 9:03 AM
Wrote about the @opentelemetry.io work i've been doing over the last year: grafana.com/blog/2024/11...
Looking for fun with with #Observability and #OpenTelemetry?
Check out the adventure game introduced by @grafana.bsky.social
🤫 psst, there is an easter egg hidden ... 🔍
grafana.com/blog/2024/11...
Check out the adventure game introduced by @grafana.bsky.social
🤫 psst, there is an easter egg hidden ... 🔍
grafana.com/blog/2024/11...
Metrics, logs, traces, and mayhem: introducing an observability adventure game powered by Grafana Alloy and OTel | Grafana Labs
Quest World is a new interactive game — created using OTel, Grafana Alloy, and the Grafana LGTM Stack — designed to help you learn the basics of observability (and defeat some evil wizards along the w...
grafana.com
November 25, 2024 at 11:03 AM
Looking for fun with with #Observability and #OpenTelemetry?
Check out the adventure game introduced by @grafana.bsky.social
🤫 psst, there is an easter egg hidden ... 🔍
grafana.com/blog/2024/11...
Check out the adventure game introduced by @grafana.bsky.social
🤫 psst, there is an easter egg hidden ... 🔍
grafana.com/blog/2024/11...
If you have lots of new and active users like @bsky.app, I can imagine that the systems are having tough times and upscaling is needed.
I'm curious about how the monitoring dashboards look like these days.
📈 Nice to see the stats at: bsky.jazco.dev/stats
@jaz.bsky.social thanks!
#observability
I'm curious about how the monitoring dashboards look like these days.
📈 Nice to see the stats at: bsky.jazco.dev/stats
@jaz.bsky.social thanks!
#observability
November 21, 2024 at 8:44 PM
If you have lots of new and active users like @bsky.app, I can imagine that the systems are having tough times and upscaling is needed.
I'm curious about how the monitoring dashboards look like these days.
📈 Nice to see the stats at: bsky.jazco.dev/stats
@jaz.bsky.social thanks!
#observability
I'm curious about how the monitoring dashboards look like these days.
📈 Nice to see the stats at: bsky.jazco.dev/stats
@jaz.bsky.social thanks!
#observability