Orhan Kalayci

DevOps, ITIL, PMP, PMPKoc, SCRUM, CMMI instructor and trusted advisor.

[Orhan Kalayci @DevOpsCu]

@allenholub Definition of good architecture >> easy to change High tech debt means not easy to change Not easy to change means bad architecture refactoring means making it easy to change. Easy to change == good architecture. Refactoring leads to “good architecture == less tech debt”

[Orhan Kalayci @DevOpsCu]

Rüşvetin belgesi mi olur? Bu fonlar sayesinde oldu. Hem de çok güvenilir bir sistem içinde bütün yolsuzluklar kayıt altında. Bu sefer rüşvetin belgesi var.

[Orhan Kalayci @DevOpsCu]

@ErhanErkut Tuncay Özkan ı da yeni partiye aldılar ya. Karışık işler

[Orhan Kalayci @DevOpsCu]

Still learning ITIL from slides?

You’re missing the point.

ITIL 5 = a system.

So I made it explorable 👇

👉 https://t.co/kNx2hEz5rR

Zoom. Navigate. Understand.

Free & improving every day.

#ITIL5 #ITIL #ITSM #AI

[Orhan Kalayci @DevOpsCu]

28 Temmuz`a kadar dolar fırlamadan once ITIL 4 ve diger sertifikalarinizi cok ozel fiyatlardan alabilirsiniz. Voucher aldıktan sonra sinava girmek icin 1 yil vaktiniz olacak. %100 basari garantili - gecemeyenler icin 3 kere sinava girme hakki ve kaliteli seneme sınavları.

[Orhan Kalayci @DevOpsCu]

🎉 100% Pass Rate Guaranteed – ITIL, PRINCE2 & More Up to 30% Off (Limited-Time Only!) - https://t.co/m66mC7tZno

[Orhan Kalayci @DevOpsCu]

@scottwambler That’s why, agile encourage self organizing (self managing) teams.

[Orhan Kalayci @DevOpsCu]

@ProfDemirtas Senaristleri de fena değil. :)))

[Azmi Mengü @azmimengu]

Slack uygulamasının "Searchable Log of All Conversation and Knowledge" cümlesinin baş harflerinden oluştuğunu az önce öğrendim.. bugünün kaliteli ve bedava bir bilgisi.

[Orhan Kalayci @DevOpsCu]

@scottwambler Wow. Excellent observation.

[Levent Gültekin @acikcenk]

“Osmanlı’yı süren soysuzlar” diyerek bu ülkenin kurucu liderlerine hakaret eden akıl yoksunu hakkında da halkı kin ve düşmanlığa tahrikten dava açılacak mı? Yoksa bu değerleri benimseyenler halk sayılmıyor mu?

[Mihriban @bennmihri]

O kadar komik ve gerçek ki sabahtan beri gülüyorum shsjdkdl

[Raul Junco @RaulJuncoV]

Cache is not only about speed; it's also about saving money.

This is how I went from a $10,065 monthly bill to $587.

Most people think about caching when the system gets slow. But there are many opportunities to save also money using cache.

Here is an example:

We consume an external service for client verifications (Know your business).

The service charges us per request; every time we search for a record, we get a little ding in our bank account.

It wasn't a problem at the beginning; we had a few hundred customers, and a few cents didn't make any difference.

But as our system grew on demand (a good problem to have), those cents became dollars.

Once we hit the 10K mark, I knew it was time for refactoring.

How I solved the problem?

1. I looked at the usage pattern

I went back to the traces; the idea was to establish a usage pattern, and I found it.

The approval process takes 5 steps. And in each of those, the system asks for the same info from the external service.

The approval often takes between 1 - 10 days. (This is important; here you have your expiration window)

2. I understood what to cache

The Response to the external service was huge and returned much info we sincerely didn't need.

I created a light version with the info we need and, actually, a better structure for our consumers.

3. I defined the key

This was a bit tricky since we can't use the Business ID as a key (it is confidential).

So, I created a hashed mechanism to obfuscate it.

Now for the fun part.

4. I implemented the cache logic

Before requesting the external service, check if the data is already in your cache using the cache key.

If the data is in the cache, serve it directly, bypassing the external request.
If the data is not in the cache, call the external service, then store the result in your cache for future requests.

We also provide a mechanism to force the cache eviction if the consumer wants to.

From there, we deployed the solution, and it was time for bragging (just a little) ... and monitoring. 😉

[Orhan Kalayci @DevOpsCu]

@caglarozenc SQL Server M1 MacBook uzerinde kullanmak icin ucuncu bir yol daha var:
1. MacBook (Client) uzerinde sanal makina
2. Docker
3. Azure MS (Server) uzerinde sanal makina (DevBox)

[Orhan Kalayci @DevOpsCu]

@CoderBora Paralel, crossover, wine vb çok kullandım ama en güzelini yeni keşfettim bir kaç aydır kullanıyorum. Çok başarılı : Azure DevBox - Remote Desktop ile uzaktan bağlandığım gerçek bir Windows VM sahibi oluyorsun.

[Erdal Bektas @eeebektas]

Yapay Zekanın öncülerinden Yann LeCun, güncel yapay zeka teknolojisinin neden insan seviyesine ulaşamayacağını anlatıyor.

Ve ne yapmamız gerektiğini.

Koşun, anlatıyorum.

[Orhan Kalayci @DevOpsCu]

@simtoalev @fkadev Algoritma ile kast ettiği : iş akışı. İş adımları.

[Orhan Kalayci @DevOpsCu]

@fkadev PMI buna isim vermiş. Ciziten Developer: kod yazmadan veya az kod yazarak istediği sonuçları alabilen çalışan. Low code veya no code -> citizen developer. Ör: “camunda”kullarak işini halleden Halkbank digital dönüşüm ofisi

[Orhan Kalayci @DevOpsCu]

@scottwambler Well stated. Regrettably, most organizations lack effective leadership.

[fatih kadir akın @fkadev]

Muhteşem olmuş ya 🇹🇷✨

[Orhan Kalayci @DevOpsCu]

@scottwambler Freedom is not what people used to have. People don’t know how to practice freedom because they have never experienced it before.