Continuous Profiling with Async-profiler
4 Pillars of Observability As systems grow in complexity, performance issues creep into application over…
Avoiding Merge Conflicts For Fork Projects
In my previous team, I’ve worked on a project which was actually a fork of another internal project at the parent company. A git fork project is very powerful in that the project maintains its connection to the original project. When there are new commits added to the original project, a fork project can simply…
Continuous Profiling with Async-profiler
4 Pillars of Observability As systems grow in complexity, performance issues creep into application over time. Debugging such issues is often difficult as these are the result of amalgamation of multiple causes. Observability plays an important role in pinpointing these causes. Traditionally, there are 3 pillars of observability: logging, tracing, and metrics. The 3 pillars…
Inheritance in OOP is Evil
Inheritance is a fundamental concept in object-oriented programming (OOP). It allows creations of a new class based on an existing class, facilitating polymorphism and code reuse. However, while inheritance can be powerful, it is also almost always wrong. Let’s discuss the pitfalls of inheritance with some simple example. What is Inheritance? Inheritance allows a class…
How “Waiting for table metadata lock” on DDL Causes Complete Table Lock For MySQL
Explanation of how DDL in Waiting for table metadata lock status caused the table to be locked.
XZ Backdoor : Perpetual Curse For Developers
The recent backdoor issue with XZ Utils has caused quite a turmoil through out the software community. However, I don’t think this will change anything. Here’s why.
6 Reasons Why You Should Avoid Scheduled Batch Jobs
Scheduled batch jobs are convinient, but has it’s own challenges. Explore shortcomings of scheduled task and investigate alternetives.
300% Boost! How Gradle Build Scan Improved My Build Time
At the project I’m currently working on, I encountered a issue where it would take roughly 20 minutes to test, build, and publish the project. Since every engineer does this at least a couple of times a day, it is a huge pain point and a waste of time. Determined to resolve this, I set…
Can Code Style Magic Boost Readability? Let’s Find Out
The topic of code style and readability is a challenging one. Today, I explore if there were more scientific studies on the matter.
How Does AWS Offer IP Address In IPv4 Running Out
Today, we explore what IP is, why IPv4 is running out, and how it’s still being used despite this depletion!
Secure Media Contents with CloudFront Signed URL
CloudFront CloudFront is AWS’s Content Delivery Network (CDN). A CDN is a special system designed to deliver static content more efficiently. If all content is served from a specific server, the physical distance between the client and that server would increase the latency involved in delivering the content. However, a CDN like CloudFront can deliver…
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