It's a perfect time to cool off for about 3 hours, so I started taking the course thinking I'd watch it on the weekend as a way to learn something new. ^^
I remembered how hard it was to distinguish between log4j, logback, and slf4j when I was a junior and how much trouble I had setting them up, so I bought it thinking many developers would find it useful. The content was well organized and explained in a story format, from the trial and error process to the monitoring stage, so it was more engaging than other lectures that explain each one separately. I thought of it as a junior learning from a mentor and kept looking at the development tips that came up here and there, and before I knew it, 3 hours had passed...
If you're new to development, watch it. Watch it twice. ^^
Logs can sometimes save your life.
(Sometimes they break, too...)
5.0
요니
100% 수강 후 작성
I really enjoyed the lecture!
I was using logback and @Sl4jf without fully understanding them,
but now I've learned about their concepts!
However, this lecture didn't just stop at simple principles or knowledge;
it allowed me to process logs,
and if one has experience handling logs for purposes like CS response,
there were many points that resonated deeply.
Thus, I found myself nodding along throughout the lecture.
In any case, it was incredibly helpful,
and I hope you'll create lectures on a wider variety of topics 😊😊
(Or, lectures that integrate various technologies or cover an entire specific domain would be even better.)
5.0
smh1205
100% 수강 후 작성
We could manage logs more actively.
강의상세_배울수있는것_타이틀
Tips on what to log in applications.
Log Collection and Utilization Using ELK Stack
Are you still connecting to your server via SSH to view logs?
The method of logging directly into the server and checking the log file has several limitations. First, if you operate multiple servers, you have to access each server individually, which takes a lot of time and makes management complicated. Second, it is difficult to monitor logs in real time, making it difficult to respond quickly when a problem occurs. In addition, since log search and analysis are done manually, important information may be missed or it may take time to find errors. This method is especially inefficient in large-scale distributed systems, and can have a negative impact on the stability of the service and the user experience. Therefore, it is necessary to introduce a more systematic and automated log management method.
Log management is an important tool that goes beyond simply recording errors, but also understands the heartbeat of an application and predicts problems in advance. Especially in modern complex distributed systems, log management can determine the stability of services and user experience. In practice, the ability to quickly identify and resolve problems amidst a large amount of data and traffic is essential.
In this lecture, "Log Management for Developers," we will cover various strategies and tips that can be applied immediately in practice, from what logs to leave to how to utilize logs. You will systematically learn the entire process of log management from beginning to end, and experience firsthand how logs can be utilized in service operation.
First, we will cover the basic knowledge of logs. In this lecture, you will understand the basic concept and importance of logs, learn what information should be logged, how to use logs in exception handling, and learn the meaning and utilization of various log levels. Through this, you will recognize the importance of logs in the development process and learn how to leave logs effectively.
Secondly, we will cover Logback configuration. We will explain the basic concepts of Logback and its connection with Slf4j, and learn how to write an actual Logback configuration file through practice. You can learn the configuration techniques required in practice, such as separating logs into multiple files using various Appenders, managing logs by day, and compressing log files. You will also learn how to implement flexible log management by applying different Logback settings for each development environment.
Next, we will introduce the importance of log collection and how to use Elasticsearch and Logstash, which are tools for this. We will practice installing Elasticsearch and Logstash using Docker and forwarding logs to Elasticsearch through LogstashAppender. We will learn how to efficiently collect and manage logs in a distributed environment and also learn how to effectively check the logs collected in Elasticsearch.
Finally, we will cover log visualization and utilization methods. You will learn how to visualize log data using Kibana and monitor logs in real time through a dashboard. You will learn how to add service and host information to log data to improve the readability of logs and how to build a system that can respond quickly when errors occur through alarm settings. You will also learn how to receive alarms through Slack in conjunction with Jenkins to build a log monitoring environment that can be used immediately in practice.
This course provides essential content for developers and engineers who want to systematically learn from the basics of log management to advanced settings. It will be of great help to anyone who wants to improve the stability of the system through effective log management and develop the ability to respond quickly when problems occur.
Learn what information to log, the role of logs in exception handling, and the meaning and utilization of various log levels to lay the foundation for effective log writing.
Logback
We systematically cover everything from basic settings to utilization of Logback. Through linkage with Slf4j, you will learn how to efficiently manage logs, and how to separate logs into multiple files or manage them on a daily basis by utilizing various Appenders.
ELK Stack
Learn how to collect and analyze logs using the ELK stack consisting of Elasticsearch, Logstash, and Kibana. Learn how to install using Docker, forward logs to Elasticsearch via LogstashAppender, and visualize and monitor log data in real time using Kibana.
Things to note before taking the class
Practice environment
Operating System and Version (OS): Windows 10
Tools used: Intellij Community 2023.2, Google Chrome
I've compiled links to practice repositories related to the above repository README.md.
Player Knowledge and Notes
This lecture is based on Java and Spring Boot applications. However, since the main content of the lecture is focused on explaining the concept of logs rather than the code level, you will be able to take the lecture without any problems even if you practice with other languages and frameworks, except for the 'Logback Settings' section.
We will not be uploading it to the server and conducting the practice, but will be conducting the practice only in the local development environment. Although the practice will be conducted locally, we will guide you on how to change the settings when uploading it to the actual server, so you can set it up in a similar way when uploading it to the server.
If you have any questions while taking the course, please leave a question. I will update it if there is anything that needs to be updated.
강의소개.콘텐츠.추천문구
학습 대상은 누구일까요?
Someone who wants to know what logs to record in an application.
A person tired of SSHing into servers every time to check logs.
선수 지식, 필요할까요?
Spring Boot application development experience
강의소개.지공자소개
6,073
수강생
304
수강평
117
답변
4.9
강의 평점
9
강의_other
Hello.
I'm Foo, and through my mentoring, I put a lot of thought into how to clearly explain concepts that junior developers often find challenging.
I look forward to working with you.
Experience
2019. 08 ~ Present : Kakao Java Backend Developer
2021. 08 ~ Present: programmers Backend Dev Course Mentor
2021. 12 ~ Present: F-Lab Java Backend Mentor
Book
This is Backend Development for Employment with Java (Link)
Other experiences and lectures on other platforms can be found at the GitHub link below.
It's a perfect time to cool off for about 3 hours, so I started taking the course thinking I'd watch it on the weekend as a way to learn something new. ^^
I remembered how hard it was to distinguish between log4j, logback, and slf4j when I was a junior and how much trouble I had setting them up, so I bought it thinking many developers would find it useful. The content was well organized and explained in a story format, from the trial and error process to the monitoring stage, so it was more engaging than other lectures that explain each one separately. I thought of it as a junior learning from a mentor and kept looking at the development tips that came up here and there, and before I knew it, 3 hours had passed...
If you're new to development, watch it. Watch it twice. ^^
Logs can sometimes save your life.
(Sometimes they break, too...)
Thank you for your thoughtful review, Sang Do Park!
I think you've done a much better job of highlighting the strengths of the class than the introduction to the class 😊😊😊😊
Thank you so much for listening to the class!!
The things you wrote will be of great help to others as well~
I really enjoyed the lecture!
I was using logback and @Sl4jf without fully understanding them,
but now I've learned about their concepts!
However, this lecture didn't just stop at simple principles or knowledge;
it allowed me to process logs,
and if one has experience handling logs for purposes like CS response,
there were many points that resonated deeply.
Thus, I found myself nodding along throughout the lecture.
In any case, it was incredibly helpful,
and I hope you'll create lectures on a wider variety of topics 😊😊
(Or, lectures that integrate various technologies or cover an entire specific domain would be even better.)
Yoni, thank you for attending the lecture!
It's great you shared what you liked during the lecture. :)
The various lectures you mentioned likely include the recently opened one ( https://inf.run/XHEvJ ), and I'll also try to create lectures on other topics!
Thank you~!
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