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  1. Contributing to Open Source Community/Project

    Written by Charis Chau on 23/06/2020 What is an open source project? To answer this, let us start with a burger! Imagine an open source project is a burger selling in a restaurant. Every day, the chef makes thousands of burgers that have the same quality by following the same recipe from the restaurant. One day, customer A comes to the burger place to try the burger, and he/she loves it! Therefore, customer A decides to ask the chef whether he/she can get the recipe. Here, if the restaurant is open source, they will be happy to share the recipe to customer A, vice versa. After customer A gets the receipt, he/she decide to make the burger at home by him/herself! However, customer A is a meat lover and does not like onion that much, so he/she decide to change the recipe by taking out the oni...
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  2. CUBRID License Model

    Written by Charis Chau on 08/06/2020 Why Licenses Matter? Open source licenses allow software to be freely used, modified, and shared. Choosing a DBMS with suitable licenses could save the development cost of your application or the Total Cost of Ownership (TCO) for your company. Choosing a DBMS without a proper license, you might find yourself situate in a legal grey area! CUBRID Licenses Unlike other open source DBMS vendors, CUBRID is solely under open source license instead of having a dual license in both commercial license and open source license. Which means that for you, it is not mandatory to purchase a license or annual subscription; company/organizational users can achieve the saving from Total Cost of Ownership (TCO). Since CUBRID has been open source DBMS from 2008, CUBRID has ...
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  3. Our Experience of Creating Large Scale Log Search System Using ElasticSearch

    Written by Lee Jae Ik on 01/05/2018 At NHN, we have a service called NELO (NHN Error Log System) to manage and search logs pushed to the system by various applications and other Web services. The search performance and functionality of NELO2, the second generation of the system, have significantly been improved through ElasticSearch. Today I would like to share our experience at NHN in deploying ElasticSearch in Log Search Systems. ElasticSearch is a distributed search engine based on Lucene developed by Shay Banon. Shay and his team have recently released the long-awaited version 0.90. Here is a link to a one-hour recorded webinar where Clinton Gormley, one of the core ElasticSearch developers, explains what's new in ElasticSearch 0.90. If you are developing a system which requires a s...
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  4. A Node.js speed dilemma: AJAX or Socket.IO?

    Written by CUBRID Community on 07/14/2017 One of the first things I stumbled upon when I started my first Node.js project was how to handle the communication between the browser (the client) and my middleware (the middleware being a Node.js application using the CUBRID Node.js driver (node-cubrid) to exchange information with a CUBRID 8.4.1 database). I am already familiar with AJAX (btw, thank God for jQuery!!) but, while studying Node.js, I found out about the Socket.IO module and even found some pretty nice code examples on the internet... Examples which were very-very easy to (re)use... So this quickly becomes a dilemma: what to choose, AJAX or sockets.io? Obviously, as my experience was quite limited, first I needed more information from out there... In other words, it was time to do s...
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  5. Become a Jave GC Expert Series 5 : The Principles of Java Application Performance Tuning

    Written by Se Hoon Park on 06/30/2017 This is the fifth article in the series of "Become a Java GC Expert". In the first issue Understanding Java Garbage Collection we have learned about the processes for different GC algorithms, about how GC works, what Young and Old Generation is, what you should know about the 5 types of GC in the new JDK 7, and what the performance implications are for each of these GC types. In the second article How to Monitor Java Garbage Collection we have explained how JVM actually runs the Garbage Collection in the real time, how we can monitor GC, and which tools we can use to make this process faster and more effective. In the third article How to Tune Java Garbage Collection we have shown some of the best options based on real cases as our examples that you can...
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