Yassine Kachchani

𝗧𝗵𝗲 𝗛𝗶𝗱𝗱𝗲𝗻 𝗖𝗼𝘀𝘁 𝗼𝗳 𝗧𝗵𝗿𝗲𝗮𝗱 𝗦𝘁𝗮𝗿𝘃𝗮𝘁𝗶𝗼𝗻 💭 1 blocked thread isn’t a problem. 100 blocked threads is a distributed deadlock. 𝗔𝗻𝗮𝗹𝗼𝗴𝘆: If everyone at a Nigerian fuel station decides not to move until they’re served first — nobody gets fuel. 🧠 𝗧𝗲𝗰𝗵 𝘃𝗶𝗲𝘄: APIs or microservices with limited worker threads can deadlock under load. Solution: Reserve pools or offload heavy communication via message queues. 🏢 𝗙𝗼𝗿 𝗹𝗮𝗿𝗴𝗲 𝘀𝘆𝘀𝘁𝗲𝗺𝘀: Thread starvation creates “ghost outages” that monitoring tools often miss. 💬 Ever had a system “up” but unusable? That’s your silent deadlock.

2

𝐏𝐢𝐜𝐭𝐮𝐫𝐞 𝐭𝐡𝐢𝐬: 𝐲𝐨𝐮𝐫 𝐟𝐥𝐚𝐬𝐡 𝐬𝐚𝐥𝐞 𝐠𝐨𝐞𝐬 𝐯𝐢𝐫𝐚𝐥—𝐚𝐧𝐝 𝐲𝐨𝐮𝐫 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐩𝐚𝐧𝐢𝐜𝐬... Ever mixed up SQS, SNS, and EventBridge 🤔 ? You’re not alone. I definitely did at first 😅. What finally made it click was thinking about them in a real-world scenario 👇 🔹 𝐈𝐦𝐚𝐠𝐢𝐧𝐞 𝐭𝐡𝐢𝐬: You’re running an e-commerce app during a flash sale. Orders spike all at once Different teams and systems need updates Everything has to react fast, without breaking That’s where AWS messaging services come in. 🟠 𝐀𝐦𝐚𝐳𝐨𝐧 𝐒𝐐𝐒 - “𝐃𝐨𝐧’𝐭 𝐥𝐨𝐬𝐞 𝐨𝐫𝐝𝐞𝐫𝐬” Best for: Order processing Stores incoming orders safely Processes them one at a time Handles traffic spikes without crashing your app 👉 Use SQS when you care about reliability and it’s one producer → one consumer. 🟠 𝐀𝐦𝐚𝐳𝐨𝐧 𝐒𝐍𝐒 - “𝐍𝐨𝐭𝐢𝐟𝐲 𝐞𝐯𝐞𝐫𝐲𝐨𝐧𝐞” Best for: Notifications Sends the same message to many subscribers Email, SMS, Lambda, SQS, and more 👉 Use SNS when one message → many receivers. 🟠 𝐀𝐦𝐚𝐳𝐨𝐧 𝐄𝐯𝐞𝐧𝐭𝐁𝐫𝐢𝐝𝐠𝐞 - “𝐑𝐞𝐚𝐜𝐭 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐜𝐚𝐥𝐥𝐲” Best for: Event-driven systems Listens for events like OrderPlaced or PaymentFailed Routes them to the right services Works great with AWS services and SaaS tools 👉 Use EventBridge when building event-driven architectures. 🔹𝐒𝐢𝐦𝐩𝐥𝐞 𝐦𝐞𝐧𝐭𝐚𝐥 𝐦𝐨𝐝𝐞𝐥 SQS → Queue and process SNS → Broadcast EventBridge → Route and orchestrate events 𝘛𝘩𝘦𝘳𝘦’𝘴 𝘯𝘰 “𝘣𝘦𝘵𝘵𝘦𝘳” 𝘴𝘦𝘳𝘷𝘪𝘤𝘦 𝘩𝘦𝘳𝘦. 𝘑𝘶𝘴𝘵 𝘵𝘩𝘦 𝘳𝘪𝘨𝘩𝘵 𝘵𝘰𝘰𝘭 𝘧𝘰𝘳 𝘵𝘩𝘦 𝘫𝘰𝘣. What I cover Linux, Cloud & DevOps Follow Urvish Jaiswal for more 💙 #AWS #CloudComputing #DevOps #AmazonSQS #AmazonSNS #EventBridge #Serverless #EventDrivenArchitecture #CloudArchitecture #CloudDeveloper #BackendEngineering #TechEducation #LearnInPublic #BuildInPublic #TechTips #CloudNative #SystemDesign #Microservices #AWSCommunity

15

Cloud & DevOps Certs You Don't Need in 2025. 𝐓𝐡𝐞 𝐛𝐢𝐠 𝐪𝐮𝐞𝐬𝐭𝐢𝐨𝐧: 𝐖𝐡𝐢𝐜𝐡 𝐜𝐞𝐫𝐭𝐬 𝐚𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐦𝐚𝐭𝐭𝐞𝐫? 𝐂𝐥𝐨𝐮𝐝 𝐃𝐞𝐯𝐎𝐩𝐬 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 ✅ Linux Certified Engineer ✅ Terraform Associate ✅ Certified Kubernetes Administrator (CKA) ✅ Docker Certified Associate ✅ Red Hat Certified Engineer ✅ Microsoft Azure DevOps Engineer Expert 𝐖𝐡𝐲? DevOps Engineers need automation, CI/CD, and infrastructure-as-code skills. These certs prove you can do it. ☁ 𝐂𝐥𝐨𝐮𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭 ✅ Docker Certified Associate ✅ Kubernetes and Cloud Native Associate ✅ Certified Kubernetes Administrator ✅ Linux Certified Sysadmin ✅ Microsoft Azure Solutions Architect Expert 𝐖𝐡𝐲? Architects design, optimise, and secure cloud infrastructure. These certs validate your expertise. 🔒 𝐂𝐥𝐨𝐮𝐝 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 ✅ CISSP (Certified Information Systems Security Professional) ✅ CCSP ✅ CompTIA Security+ ✅ Certified Kubernetes Administrator ✅ Azure Security Engineer Associate 𝐖𝐡𝐲? Security is non-negotiable in cloud environments. These certs show you can protect cloud platforms from threats. ⚙ 𝐒𝐢𝐭𝐞 𝐑𝐞𝐥𝐢𝐚𝐛𝐢𝐥𝐢𝐭𝐲 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 (𝐒𝐑𝐄) ✅ Linux Certified Engineer ✅ Kubernetes and Cloud Native Associate ✅ Prometheus Certified Associate 𝐖𝐡𝐲? SREs keep services reliable and scalable. Monitoring and automation are key, and these certs prove your skills. 🛠 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 ✅ Linux Certified Engineer ✅ Terraform Associate ✅ Docker Certified Associate ✅ Kubernetes and Cloud Native Associate ✅ Red Hat Certified Engineer 𝐖𝐡𝐲? Platform Engineers build internal developer platforms. These certs show you know infrastructure and automation. 🔄 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐬 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 ✅ Linux Certified Sysadmin ✅ Red Hat Certified Engineer ✅ CompTIA Linux+ ✅ Azure SysOps Administrator Associate 𝐖𝐡𝐲? Ops Engineers deploy, monitor, and troubleshoot cloud systems. These certs prove your ability to keep things running. 📡 𝐍𝐞𝐭𝐰𝐨𝐫𝐤 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 ✅ Juniper JNCIA-Cloud ✅ Cisco Certified CCNP Cloud ✅ AWS Advanced Networking Specialty Why? Cloud networks are complex. These certs prove you can design, manage, and secure cloud networking. 🤖 𝐌𝐚𝐜𝐡𝐢𝐧𝐞 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 ✅ CompTIA Data+ ✅ AWS Certified Machine Learning Specialist ✅ Microsoft Azure Data Engineer Associate Why? AI & ML are shaping the future. These certs show you can build, deploy, and scale ML models in the cloud. How many of these do you actually need to land DevOps roles. #devops #systemdesign #interviewtips

949

26 Comments

Startups can’t afford slow software delivery. That’s where DevOps methodology comes in. DevOps bridges development and operations, enabling: ✅ Faster releases with fewer blockers ✅ Continuous feedback loops ✅ Better collaboration across teams ✅ Scalable solutions without overspending For founders and small business leaders, adopting DevOps is less about buzzwords and more about efficiency, speed, and long-term reliability. Our practical guide breaks it all down—principles, benefits, and how to get started. 👉 Read here: https://lnkd.in/gSZ4ua6d DevopsCompanies.org #DevOps #Startups #SmallBusiness #Agile #ProductDevelopment

6