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Channel ini merupakan channel dari komunintas Programmer Zaman Now Admin : @khannedy Lowongan Programmer Zaman Now : @LowonganProgrammerZamanNow
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Channel Posts
Jadwal materi minggu depan ya teman2. Khusus member sudah bisa akses materinya dari sekarang
| 2 |  kamu benar, aku yang salah | 804 |
| 3 |  Promo 99K Kelas Programmer Zaman Now di Udemy
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#laravel #android #nodejs #docker #spring #springboot #dart #git #designpatterns #javascript #js #golang #kotlin #mysql #php #java #typescript #postgresql #mongodb #bun #rust #nestjs | 839 |
| 4 | Promo 99K Kelas Programmer Zaman Now di Udemy
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| 5 |  Promo 99K Kelas Programmer Zaman Now di Udemy
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| 6 | Promo 99K Kelas Programmer Zaman Now di Udemy
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| 7 |  PHP itu BAHAYA buat database kalian! 😱
Pernah ngalamin error "Too many connections" di MySQL? Atau aplikasi PHP tiba-tiba lemot pas traffic naik? Welcome to CONNECTION POOL HELL — masalah klasik PHP yang jarang dibahas tapi BISA bikin database production kamu KOLEPS!
⏱️ Timeline:
00:00 Intro
01:22 Konsep Connection Pool
06:06 Membuat Aplikasi PHP
13:16 Performance Test Menggunakan K6
22:26 Persistence Connection
31:04 Masalah di Persistence Connection
33:39 Proxy Connection Pool
37:32 Problem Idle Timeout di PHP
42:35 Outro
#PHP #ConnectionPool #MySQL #ProxySQL #BackendDevelopment #ProgrammerZamanNow #LoadTesting #k6 #DevOps | 628 |
| 8 |  Pernah debug bug di microservices yang lompat-lompat antar service, dan akhirnya nyerah cuma karena nggak tau request nyangkut di mana? Ini akhir dari penderitaan itu.
Di video ini, kita bangun 4 microservices polyglot dari nol dengan stack yang sengaja dibikin "berantakan":
- Order Service - Java 21 + Spring Boot 3
- Product Service - Bun + TypeScript
- Payment Service - Go
- Notification Service - Node.js + Express
- PostgreSQL untuk semua database (4 schema terpisah)
Empat bahasa berbeda, empat runtime berbeda - dan kita sambung semua nya pake OpenTelemetry + Jaeger UI supaya bisa lihat satu trace lengkap dari awal request sampai akhir, lewat semua service, lengkap sampai ke query SQL-nya.
Yang kalian dapet di video ini:
- Setup OpenTelemetry untuk 4 bahasa berbeda - masing-masing punya pendekatan sendiri (Java agent zero-code, manual instrumentation di Bun, otelhttp + otelpgx di Go, auto-instrumentations di Node)
- Cara propagasi trace antar service via W3C TraceContext header - biar trace ID konsisten dari ujung ke ujung
- Pakai Jaeger UI buat ngebedah waterfall trace, cari span yang lambat, dan lokasiin error dengan cepat
- Trik real-world yang biasa nggak diomongin di tutorial: gimana caranya ngirim trace ID ke client (buat dipake di support ticket), dan gimana trace non-API call seperti goroutine fire-and-forget yang context-nya dibatalin abis HTTP response selesai
Bonus drama: video ini ada bug live yang harus kita debug pake Jaeger sendiri - kerasa banget kenapa observability bukan barang opsional di dunia microservices.
0:00 Intro
1:10 Pengenalan OpenTelemetry
7:31 Membuat Microservices
13:18 Test Microservices
16:49 Implementasi OpenTelemetry di Microservices
22:05 Menggunakan Jaeger UI
25:02 Tracing Problem di OpenTelemetry
29:09 Trik Memberi Informasi Trace ke Client
30:44 OpenTelemetry untuk Non API Call
31:47 Outro
#opentelemetry #jaeger #microservices #observability #springboot #golang #nodejs #bun #typescript #java #postgresql #docker #podman #distributedtracing #devops #backend #softwareengineering | 543 |
| 9 | Promo 99K Kelas Programmer Zaman Now di Udemy
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#laravel #android #nodejs #docker #spring #springboot #dart #git #designpatterns #javascript #js #golang #kotlin #mysql #php #java #typescript #postgresql #mongodb #bun #rust #nestjs | 601 |
| 10 | https://youtu.be/8nKxtb1DfF0 | 893 |
| 11 |  Setiap aplikasi pasti integrasi sama third party — bank, ewallet, logistik, email, SMS provider. Tapi gimana kalau third party-nya yang bermasalah? Solusinya: aplikasi gateway. Di video ini saya bahas bedanya sama API Gateway, kenapa wajib bikin sendiri buat sistem internal, dan apa aja benefit-nya — termasuk fallback seamless, bugfix terpusat, plus hal-hal yang harus diperhatikan biar gateway-nya gak jadi titik kritis.
Timeline:
0:00 - Intro
0:58 - Bukan API Gateway
2:14 - Tanpa Aplikasi Gateway
3:54 - Dengan Aplikasi Gateway
5:17 - Fallback Seamless
6:55 - Bugfix Terpusat
8:11 - Yang Harus Diperhatikan
9:32 - Penutup
#gateway #apigateway #thirdparty #integration #backend #microservices #fallback #abstraction #softwarearchitecture #payment #notification #scalability #programming #programmerzamannow | 953 |
| 12 |  7 strategi yang dipake e-commerce besar biar aplikasinya tetap high available (jarang down) — dari stateless app, database HA, fallback, rate limit, polyglot persistence, async/background process, sampai caching di mana-mana. Bisa langsung diterapin di aplikasi tempat kerja kalian.
https://youtu.be/djVDHKkH-Ek
Timeline:
0:00 - Intro
0:44 - Stateless & Multi-Instance
2:31 - Database High Availability
4:24 - Mekanisme Fallback
6:15 - Rate Limit
7:28 - Database yang Tepat
8:43 - Async & Background Process
10:30 - Cache di Mana-Mana
12:32 - Penutup
#highavailability #ecommerce #backend #scalability #stateless #database #fallback #ratelimit #caching #async #redis #postgresql #elasticsearch #microservices #programming #programmerzamannow | 766 |
| 13 |  Promo 99K Kelas Programmer Zaman Now di Udemy
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#laravel #android #nodejs #docker #spring #springboot #dart #git #designpatterns #javascript #js #golang #kotlin #mysql #php #java #typescript #postgresql #mongodb #bun #rust #nestjs | 641 |
| 14 | Promo 99K Kelas Programmer Zaman Now di Udemy
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#laravel #android #nodejs #docker #spring #springboot #dart #git #designpatterns #javascript #js #golang #kotlin #mysql #php #java #typescript #postgresql #mongodb #bun #rust #nestjs | 720 |
| 15 | Promo 99K Kelas Programmer Zaman Now di Udemy
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#laravel #android #nodejs #docker #spring #springboot #dart #git #designpatterns #javascript #js #golang #kotlin #mysql #php #java #typescript #postgresql #mongodb #bun #rust #nestjs | 764 |
| 16 |  Promo 99K Kelas Programmer Zaman Now di Udemy
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#laravel #android #nodejs #docker #spring #springboot #dart #git #designpatterns #javascript #js #golang #kotlin #mysql #php #java #typescript #postgresql #mongodb #bun #rust #nestjs | 0 |
| 17 | Promo 99K Kelas Programmer Zaman Now di Udemy
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#laravel #android #nodejs #docker #spring #springboot #dart #git #designpatterns #javascript #js #golang #kotlin #mysql #php #java #typescript #postgresql #mongodb #bun #rust #nestjs | 0 |
| 18 | Promo 99K Kelas Programmer Zaman Now di Udemy
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#laravel #android #nodejs #docker #spring #springboot #dart #git #designpatterns #javascript #js #golang #kotlin #mysql #php #java #typescript #postgresql #mongodb #bun #rust #nestjs | 0 |
| 19 |  Flash sale, rebutan tiket, atau giveaway gede? Jangan cuma scale up server — pattern slot pool (semaphore) bisa bikin sistem tetap aman saat traffic spike ratusan ribu request barengan. Di video ini kita bahas kenapa rate limiter sama FIFO queue gak cocok, dan gimana implementasi slot pool pakai Redis cuma dengan INCR/DECR.
https://github.com/ProgrammerZamanNow/qna/issues/984
Timeline:
0:00 - Intro
0:46 - Kenapa Butuh Sistem Antrian
2:37 - Kenapa Bukan Rate Limiter
4:18 - Solusi Slot Pool
6:39 - Keuntungan Slot Pool
8:06 - Implementasi dengan Redis
10:08 - Kenapa Bukan FIFO Queue?
12:33 - Penutup
#flashsale #slotpool #semaphore #redis #ratelimiter #antrian #queue #backend #ecommerce #tiket #distributedsystem #scalability #programming #programmerzamannow | 0 |
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