Logback vs SLF4J vs Log4J2 - what is the difference? Java Brains Brain Bytes

super super clear. 👍

Logback, SLF4J and Log4j2 are Java logging frameworks. Logback is an implementation with a facade API, SLF4J is a facade for various logging platforms, and Log4j2 provides both a facade API and an implementation. They all aim to provide a standardized API for logging in Java, allowing flexibility in how you choose to actually implement logging.

Explained very well

beautiful thanks❤

How to become good in coding?

SFL4J API or Log4J2 API ?

Excellent !

that was awesome! thank you.

apparently choice is hell.

Because Java...

I think fine is not that FINE the debugger level, but it means the granular logging, which means every single piece of information will be logged when logging level is fine.
It contains more sensitive information's and we normally use it when debug or info level logs are not worth analysis.

I should also add that both past experience and recent events suggest to me that no one should use log4j2. If you understand the recent security problems you'd have to conclude that the team involved didn't understand that it was a bad idea to (BY DEFAULT) scan log messages looking for special char sequences and then potentially download and execute remote code based on it. This suggests they don't understand basic security or performance concepts, but also that they don't know that most people won't want all kinds of random and obscure features thrown into their production system, where it would take a lengthy read of docs and/or code to even know what you're getting!

Helpful

Log4j1 was before jul

I want to say something to you Kaushik, I am new to development (less than 1-year experience) currently working with an IT company here in Pakistan as a Java developer, but let me tell you When I get a job in Europe I will surely donate too much money to support your channel. Love for you Kaushik sir! 😄🥰

Hi Sir I have question here,
Even if a .class file enters log what that can do, because it will be on log files, how can hackers can execute java from a log file.
May be I'm silly but I got this doubt

"what is the difference?": One of them had a major vulnerability that affected a big part of the internet to be at risk. But I'm not telling which one it is...

rofl

Watching this again after the Log4J2 incident. Logging hell gets a different meaning.

Good video, but I would challenge your assertion that logging is a mess. Keep up the good work

I'm from the future, in December 2021 Log4J will, oh god, I've said too much!

Logging really became a hell with log4J🥴

Please use dark background in you presentation 😂

Thank you so much

Up vote for speaking truth! Logging Hell!

King <3

Your channel is all what every enterprise Java developer ever needs

The history part was basically wrong: Java util logging came AFTER log4j.
Basically log4j was the first widely adopted logging framework in Java, and later Java borrowed the idea (hierarchical logger, log level, appender/handler) and make up its own logging framework (java.util.logging)

The part for log4j2 was wrong too: right slf4j was developed as a facade. And logback was developed as a “native” implementation for slf4j almost at the same time slf4j was introduced (they are from the same guy anyway, which is the original author of log4j)
Log4j2 is basically the same: it contains the API part (which is basically what slf4j) and implementation (just like logback). Which means you can use log4j2 API and use slf4j/logback as backend.

How do you come up with so much clarity? The video seems to be short, but the effort you would have spent going through their docs and understanding, then coming up with just the information required in 10mins is tremendous. Respect.

Found the answer after a long time

very good job, thank you

That thumbnail though hahahaha

Great video! Thank you for this clean explanation.

Just one question, little bit off the topic related to design(i am learning these days). Why Facade, why not adapter ?

Such an informational video, which is not even covered in paid courses.

Good content ! One thing I'd like to add here is SLF4j vs log4j is that placeholder { } in SLF4j reduces lot of string concatenation in the code and also avoids creation of String Object, thereby reducing the memory requirements , and this could be handled by if (LOGGER.isDebugEnabled()) clause in log4j style.

Thanks sir for explaining in detaills

I have programming for many years and don't know this, I feel like a loser.

awesome comparison.

Myself am a noob in java and I would cry for real if i am asked to
work on logging.Thanks alot man.

wowww dude this cleared a hell lot of stuff.. thanks for this..

Excellent tutorial. Thanks a lot

Can you do one on OpenJDK?

What we need is to consolidate all the frameworks into one. The authors should get together and merge the best features of each into one. Same with the major frameworks.

Supremely digested, thank you so much! I might add, as well as the other videos. You're making a great contribution to the developer society. Very informative and very ingestible.

I came knowing nothing about logging libraries now I know you can have multiple libraries serving your project! Thanks man!

Man I love your Intro!!