iiinova — where your digital self keeps evolving

Robert Zych @zychr.bsky.social · 09/12/2025

Your book on functional programming is still on my bookshelf as it’s one of my all time favorites. Looking forward to reading this one.

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Robert Zych @zychr.bsky.social · 13/07/2025

Which techniques do you use to increase your trust in model generated code? Submitting the same task to multiple models can produce interesting results.

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Reposted by Robert Zych

Kaivalya Apte @thegeeknarrator.bsky.social · 02/02/2025

The JVM internals series - #5 is out.. This episode lays out a good foundation for us to go into the internals of each of the amazing GCs and their tradeoffs. Become a member to access the upcoming internals episode.. Meanwhile watch this video (free access until tomorrow). youtu.be/p1Yamdly0QE

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Robert Zych @zychr.bsky.social · 31/01/2025

Perfect Polish smile. Just need a black and white copy for your passport.

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Robert Zych @zychr.bsky.social · 25/01/2025

With @apachepinot.bsky.social I can query a 100TB data set and using it’s Star-tree index can get 20ms query latency!

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Robert Zych @zychr.bsky.social · 17/01/2025

Has anyone used DuckDB for TB or PB scale data sets? Asking for a friend.

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Robert Zych @zychr.bsky.social · 25/12/2024

I was reading this book recently and stumbled across this handy formula for calculating Kafka partitions: Max(target tp / producer tp, target tp / consumer tp)

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Robert Zych @zychr.bsky.social · 17/12/2024

@startreedata.bsky.social Thank you and Merry Christmas! My community box arrived last night and with my winnings from the MI competition I recently purchased a pair of skis. #startree

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Robert Zych @zychr.bsky.social · 11/12/2024

I’m planning to use ST to generate 100TB of data

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Robert Zych @zychr.bsky.social · 04/12/2024

What is the graph trying to show? Do you have any examples of virtual threads from prod?

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Robert Zych @zychr.bsky.social · 03/12/2024

Last night, I was exploring thread safety issues with ChatGPT. It only took two attempts to generate a test that exposed the lack of a synchronized block for a section that updates multiple member variables. #java

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Robert Zych @zychr.bsky.social · 23/11/2024

Assuming refs could handle the new rule it would prevent goals from offside situations, but it would hurt counter attacking.

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Robert Zych @zychr.bsky.social · 23/11/2024

It’s been a while since we’ve had this discussion. Could you remind me when you would call offsides?

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Robert Zych @zychr.bsky.social · 22/11/2024

Didn’t we used to say monkey’s tail back in the early days of the internet?

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Robert Zych @zychr.bsky.social · 19/11/2024

Correct! Thanks for playing! This was based on an example from “Java Concurrency in Practice”.

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Robert Zych @zychr.bsky.social · 19/11/2024

What does this program output? #java

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Robert Zych @zychr.bsky.social · 17/11/2024

trod through great compilation Exodus!

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Robert Zych @zychr.bsky.social · 14/11/2024

Here’s my dog Mocha. She’s 2

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Robert Zych @zychr.bsky.social · 14/11/2024

@thegeeknarrator.bsky.social thanks for the book recommendation. This one is much easier to read

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Reposted by Robert Zych

Jaz @jaz.sh · 13/11/2024

90 days ago Bluesky had 6.18M users 30 days ago Bluesky had 10.85M users Tomorrow Bluesky will have 15M users This is absolutely wild, thanks for believing in us y'all

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Robert Zych @zychr.bsky.social · 13/11/2024

Coincidentally I just started reading and enjoying “Java Concurrency in Practice”

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Robert Zych @zychr.bsky.social · 12/11/2024

Let's go! Update your starter packs #dataBS

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Robert Zych @zychr.bsky.social · 05/11/2024

Great point! Perhaps “performance over precision” is a more appropriate phrase for this trade off. Another example that comes to mind is from Kafka Streams where you define the grace period for windows with late arriving events.

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Robert Zych @zychr.bsky.social · 05/11/2024

In which cases is performance more important than correctness? Approximations. Like Pinot’s DISTINCTCOUNTHLL which returns an approximate distinct count using HyperLogLog. Does anyone else have a good example?

approximations.like

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Robert Zych @zychr.bsky.social · 04/11/2024

And your data model can be only as good as the query patterns it was designed to support

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Robert Zych @zychr.bsky.social · 03/11/2024

Both if possible. But if not, then correctness over performance. And all other key benefits of the Responsive platform itself (above and beyond Kafka Streams)

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Robert Zych @zychr.bsky.social · 03/11/2024

How does Responsive support calls to external services while processing the stream? What are the current and future benefits of using SlateDB?

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Robert Zych @zychr.bsky.social · 03/11/2024

Thanks for the refresher! Now I wonder how the false positive probability (fpp) parameter works in Pinot. docs.pinot.apache.org/basics/index...

docs.pinot.apache.org

Bloom filter | Apache Pinot Docs

This page describes configuring the Bloom filter for Apache Pinot

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Robert Zych @zychr.bsky.social · 03/11/2024

I meant “hand” not “handheld”.

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Robert Zych @zychr.bsky.social · 03/11/2024

IIRC, Bloom filters are a probabilistic data structure. Meaning that they return a maybe yes or definitely no result. In this case it’s a maybe yes because of the “handheld” part of the query, correct?

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Robert Zych @zychr.bsky.social · 02/11/2024

Better, but I prefer Kaivalya’s. What’s the final result and why?

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Robert Zych @zychr.bsky.social · 02/11/2024

I’m a supporter once again! Thank you for your service 🫡

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Robert Zych @zychr.bsky.social · 02/11/2024

Having the lines going through the bit indices helps to explain the mappings. Though it’s still not clear what the result of the lookup is.

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Robert Zych @zychr.bsky.social · 02/11/2024

I’d like to understand what you’re showing here but would need to see a more straightforward example first. Are you still accepting financial contributions?

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Robert Zych @zychr.bsky.social · 01/11/2024

When it comes new data systems Rust appears to be winning for now.

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Robert Zych @zychr.bsky.social · 01/11/2024

Yes, and contributing to the libraries can take your education to a new level

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Robert Zych @zychr.bsky.social · 31/10/2024

To make such a big change after so many years is inspiring. I switched from C# (10yrs) to Python (6yrs) to Java (1yr and counting)

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Robert Zych @zychr.bsky.social · 29/10/2024

Working on JSON predicate pushdown for the Trino-Pinot connector: contains((1,2,3), json_extract_scalar(json, '$.key`)) -> json_match(json, '$.key in (1,2,3)') json_array_contains(json_extract(json, '$.array'), value) -> json_match(json, '$.array[*] = value') json_match uses Pinot's JSON index

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Robert Zych @zychr.bsky.social · 27/10/2024

Interest, discipline, and potential.

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Robert Zych @zychr.bsky.social · 08/08/2023

It’s a good sign when a friend surprisingly welcomes you on your 1st day at a new job. Thanks @nbuesing.bsky.social !

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