Thank you for contributing to Armeria!

Hello to the readers! I’d like to share with you the first ever Armeria Contributor Reward Event and how it went. For this posting, I’m not going to elaborate on the technical aspects of Armeria. To learn more about its technology and features, please visit the official website for Armeria. The Armeria project was initially developed by LINE but …

LINE with OpenJDK: From compatibility check to things to watch out for

Good to see you all! I’m YongChan Kwon, an SRE (Service Reliability Engineer) at the Service Engineering Team. As you can guess from the team name or my role, I’m more like a generalist, filling in the gaps between various stages in service life cycle such as infrastructure, development and service technology. As Oracle announced its new …

Troubleshooting Data Engineering Software

Hello, I’m Keiji Yoshida. I currently work as a data engineer at LINE Data Labs. In this posting, I’d like to share a few cases on data engineering software troubleshooting: Apache Hadoop YARN ResourceManager failoverApache Hadoop HDFS NameNode failoverApache Zeppelin Notebook scheduler issueApache Zeppelin deadlock issueApache Spark SQL performance issue Troubleshooting failover issue in Apache Hadoop YARN ResourceManager Let’s start …

EuroSTAR Conference 2018

What is EuroSTAR Conference 2018 EuroSTAR is an annual Software Testing Conference hosted in Europe, in November. The topics of the conference covered vary from improving software development process, like DevOps and Agile, or AI related automation testing, and also the mindset building-up to overcome recognization biases. For the details of this yearly Software Testers Festival, …

Synchronizing largely geographically distributed teams with Lint

It’s well known that as a team grows, the communication overhead increases geometrically until it takes up most of the time of the members. Static analysis can help us reduce the time cost, streamline the code review process, as well as to keep big teams synchronized. As you can imagine, in LINE we face challenging …

TensorFlow.js

Greetings! This is Jun and I’m a front-end developer at LINE. Recently the front-end development scene is booming with new technologies and it’s becoming difficult to catch up with all those new things. Personally I’m onto machine learning (ML). As part of today’s topic as “implementing machine learning in front-end web development”, let me share …

LIFF + TIC-80

Hello, this is Seisuke. I work at LINE Fukuoka as an engineer for LINE app for Android. Our office held a hackathon for LINERs in November 2018, at which I had a chance to try out TIC-80, a fantasy console, with LIFF. I wanted to share some of the lessons I learned through the event. …

Wrapping a native SDK for Unity: our challenges and choices

I am Wei Wang from the LINE SDK development team. Last year at LINE Dev Day 2018, we released our new open source LINE SDK for iOS and Android. The SDK provides a modern way to integrate LINE Login and several APIs into your app, helping you create an engaging and personalized user experience. In addition to app …