EDUCBA

EDUCBA

MENUMENU
  • Free Tutorials
  • Free Courses
  • Certification Courses
  • 600+ Courses All in One Bundle
  • Login

Log4j Version

Home » Software Development » Software Development Tutorials » Software Development Basics » Log4j Version

Log4j Version

Introduction to Log4j Version

We have a different version available for Log4j; it is used to control the application’s logging levels. By the use of it, we can modify the logging without being modify the application binaries. Log4j version provides updates and improvements from the last version; it basically comes up with an improvement in performance, flexibility, etc. Log4j now comes with Log4j 2 version with so many improvements. Here we will see more about the Log4j version in detail, with each explained for better understanding and to implement this in our application for better performance and logging activity.

List of Log4j Version

As we already know that Log4j is used to maintain the logs for the application; by using this, we can maintain the logs at a different level, for example: WARN, INFO, DEBUG, and ERROR. If we want our application to print only specific logs to the console after deployment, then we have to mention this in the log4j properties file.

Start Your Free Software Development Course

Web development, programming languages, Software testing & others

We have a different version available for log4j:

1. Log4j 1

This is nothing but a java-based library that helps us maintain the logging level for the application. We can also enable and disable some logging based on the library, but for this, we have made some configuration in the properties file. Also, this properties file should be placed in the class path of the application. Inside this file, we can mention the configuration we want and make files containing the logs for the application. These things can have managed by the .xml or properties file in the application. But this version of Log4j does not provide flexibility, java logging, and some issue with this framework.

Let’s discuss each version of Log4j 1 in detail:

a. Log4j 1.2: This version of Log4j was launched on 5, august 2015 with some improvements. But this version has some security issue associated with it. It has a socket server that performs serialization and deserialization without performing any checks on the object or without verifying them; this may cause them to a security issue in Log4j, but all these have come over in Log4j 2 version, so they are insisting everyone to move to log4j 2 now which comes up with more flexibility and improve security breaches. Also, it has a compatibility issue with the java version because, in java version 9, we have some algorithm changes, which makes the log4j 1.2 to not work properly with it. But while implementing it, we have to keep in mind these points as well, so they are forcing us to move to log4j 2. Also, logging is important in the application to track the application working and trace error, if any.

Things which does not support by Log4j 1.2 version are as follows:

  • It has a security issue with it.
  • Does not support the java version due to a change in algorithm.

b. Log4j 1.3: This version has the same problem as Log4j 1.2; also, its development has been no longer carried out. Apache team has not any plan to release this 1.3 version of Log4j. They planned to move these features to Log4j 2 because the features they are trying to implement also being implemented in log4j 1.2, so they cancelled this version to release. So this not in use as of now.

Popular Course in this category
Sale
Software Testing Training (9 Courses, 2 Projects)9 Online Courses | 2 Hands-on Projects | 60+ Hours | Verifiable Certificate of Completion | Lifetime Access
4.5 (7,919 ratings)
Course Price

View Course

Related Courses
Selenium Automation Testing Training (9 Courses, 4+ Projects, 4 Quizzes)Appium Training (2 Courses)JMeter Testing Training (3 Courses)

2. Log4j 2

This version of log4j comes into the picture; in this, there have provided so many improvements, including the security issue present in the above version. It also supports different version of java; they have also come up with improved performance; it also supports asynchronous loggers inside this. They will help in higher perforce in a multithreading environment.

Let’s discuss each of the improvement:

  • It provides support for asynchronous logging: By using Log4j 2, we can implement asynchronous logging for our application; this will provide us higher performance in a multithreading environment. This was not supported in the log4j library but comes up with an impro in log4j 2 library. Throughput of Asynchronous loggers can be increased in the multithreading setup or environment, we can say. These loggers make effective and better use of the multi-core.
  • It has overcome the security issue.
  • Support version of java.
  • It provides support for the multiple APIS: Log4j 2 provide support for multiple Apies such as common loggings, SLF4J etc.
  • Java lambda support: Log4j also comes up with support for lambda in Java 8. For this to evaluate, we have to enable the log4j for our lambda expression in an application.
  • Garbage free : It has support for both standalone and web application. The standalone application will be garbage-free, but for a web application, it will have low garbage. If we have less or free garbage, then it will create a low pressure on the garbage collector in java and give us better performance.
  • Cloud support : Log4j 2 also provide support for cloud-enabled. By this, we can access the docker container; for this, we have to make a configuration in Log4j.
  • Support to use builder api: In Log4j, we can use builder api to create our logs or events.
  • We can also customize our logs by using log4j levels.
  • In Log4j 2, we also do not require creating the appended pattern or layout because it automatically does this. The reason behind this it uses a plugin to create the component in Log4j 2.

Conclusion

Using Log4j, we can maintain our application logs, which helps us track the error in our application, if any. We can also maintain the logging level for this; we have different logging levels, as we discussed above. But to use them inside our application, we have to have a .xml or properties file in place.

Recommended Articles

This is a guide to the Log4j Version. Here we discuss the introduction and the list of Log4j version for better understanding. You may also have a look at the following articles to learn more –

  1. Java Shutdown Hook
  2. Java GUI Framework
  3. Java Vector Class
  4. Java URL Class

All in One Software Development Bundle (600+ Courses, 50+ projects)

600+ Online Courses

50+ projects

3000+ Hours

Verifiable Certificates

Lifetime Access

Learn More

0 Shares
Share
Tweet
Share
Primary Sidebar
Software Development Basics
  • Basics
    • Types of Algorithms
    • Vue.js? nextTick
    • Vue.js Transition
    • Page Replacement Algorithms
    • What is CLI
    • Open Source Software
    • Solve Problems With Technology (Simple)
    • What is Application Software & Types
    • System Software Tools
    • Typography App
    • Software as a Service (Saas)
    • Icon Font Pack
    • Interpret Results Using ANOVA Test
    • Blogging Insights Your Analytics
    • Increase Productivity Technology
    • Free Multimedia Software
    • Information Technology Benefits
    • What is SPSS and How Does It Work
    • Learn to Code For Beginners (Advance)
    • Uses of Coding
    • Uses Of Raspberry Pi
    • What Is System Design
    • Introduction to NLP
    • What is MapReduce
    • What is SoapUI
    • What is MVC
    • What is Multithreading
    • What is Elasticsearch
    • Elasticsearch Features
    • What is Neural Networks
    • What is Swift
    • What is PLC
    • What is Open Cart
    • What is XML
    • What is Mainframe
    • What is JMS
    • What is Cognos
    • What is Open Source
    • What is Bot
    • What is SOAP
    • What is COBOL
    • What is GraphQL
    • What is Microcontroller
    • What is Open-Source License
    • What is Visual Studio Code
    • What is Pandas
    • What is Hypervisor
    • What is Common Gateway Interface
    • What is IDE?
    • What is SSRS?
    • What is MVC Design Pattern
    • What is Application Server
    • What is GPS
    • What is NumPy
    • What is NLP
    • What is Botnet
    • What is Assembly Language
    • System Analysis And Design
    • HTTP Caching
    • What is Buffer Overflow
    • What is Ajax
    • What is Joomla
    • What is Appium
    • What is SVN
    • What is SPSS
    • What is WCF
    • What is Groovy
    • What is Clickbait
    • What is SOA
    • What is GUI
    • What is FreeBSD
    • What is WebSocket
    • What is WordPress
    • What is OSPF
    • What is Coding
    • What is Raspberry Pi
    • HTTP Cookies
    • What is Hub?
    • What is Bridge
    • What is Switch
    • What is Internet Application
    • What is Sensors
    • What is Proximity Sensors
    • What is Full Stack
    • System Design Interview Questions
    • What is Salesforce technology
    • What is Salesforce Sales Cloud
    • What is OOP
    • What is CMD
    • What is React
    • React Redux Typescript
    • What is DSS
    • What is SVG
    • SVG File
    • What is Apex
    • What is Desktop Software
    • Tor Browser, Anonymity and Other Browsers
    • Avoid Pitfalls of Shadow IT
    • Freelance Web Graphic Designer
    • What is Storage Virtualization
    • What is Web Services?
    • What is Social Networking?
    • What is Microservices Architecture?
    • Microservices Tools
    • Advantages of Microservices
    • Uses of Internet
    • Software Platforms
    • Uses of Internet for Business
    • Architecture of Web Services
    • Web Application Testing
    • Advantages of Web Service
    • CPU Virtualization
    • Types of Web Services
    • Web Services Testing
    • What is RabbitMQ?
    • RabbitMQ Architecture
    • Advantages of Bitcoin
    • Penetration Testing Services
    • Puppet Alternatives
    • What is Memcached?
    • What is Browser?
    • Types of Satellites
    • Model Driven Architecture
    • Types of Variables in Statistics
    • Integration Architecture
    • What is API Integration?
    • What is Grid Computing?
    • Asus File Manager
    • What is GPRS?
    • What is Gradle?
    • What is Basecamp?
    • Software System Architecture
    • GSM Architecture
    • What is Nagios?
    • AppDynamics Tool
    • Logical Architecture
    • What is Microsoft Planner
    • What is Circuit Switching
    • What is ARM?
    • Embedded Control Systems
    • Types of Embedded Systems
    • What is Bitbucket?
    • Requirement Engineering
    • What is WAP
    • What is Registry?
    • What is Dynatrace?
    • What is Digital Forensics?
    • Hardware Virtualization
    • AppDynamics Careers
    • Bandwidth Monitoring Tools
    • Ping Monitor Tools
    • Dynatrace Tools
    • What is Trello?
    • What is AppDynamics?
    • What is Remote Desktop?
    • What is Extranet?
    • What is LTE Network?
    • What is Firebase?
    • Website Monitoring Tool
    • Number Systems
    • Service Desk Manager
    • Static Website
    • Dynamic Website
    • What is Email?
    • What is URL Link?
    • What is Program?
    • What is Lock Screen?
    • What is Grafana
    • Unguided Media Transmission
    • IT Governance
    • IT Governance Framework
    • Remote Support Softwares
    • What is Unification?
    • Topological Map
    • What is LAMP?
    • USB Flash Drive
    • Software Development Models
    • Digital Circuit
    • What is Webpack?
    • Fault Tolerance
    • What is DSL Modem?
    • What is Mozilla Firefox?
    • What is Vagrant?
    • Types of Research Methodology
    • Grafana Plugins
    • Ionic Components
    • Nginx Version
    • RabbitMQ Routing Key
    • CakePHP
    • Telegram Features
    • What is CDN
    • RethinkDB
    • Symfony Version
    • UWP
    • cPanel version
    • What is assembly?
    • Seed7
    • Switching Techniques
    • OCaml
    • Pseudocode?Algorithm
    • Quality Control Methods
    • What is OneNote?
    • Workstation Uses
    • Soft Computing Techniques
    • Remote Access Software
    • Remote Desktop Tools
    • OneNote Shortcuts
    • Software Review
    • What is Qubit?
    • Static Analysis Tools
    • Register in Microprocessor
    • What is VDI?
    • What is Svelte?
    • RabbitMQ Version
    • Groovy Version
    • Code Walkthrough
    • What is Telegram?
    • Gradle Version
    • What is Recycle Bin?
    • What is Cordova?
    • Swagger version
    • Doxygen
    • Phalcon
    • Metasploit Framework
    • Microsoft Word Shortcut Keys
    • Wordpad shortcut keys
    • Burp Suite
    • Google Docs Shortcuts
    • Install VPN
    • Frontend Challenges
    • CodeIgniter Version
    • VMware Tools
    • CDMA Advantages
    • CDMA Uses
    • Servlet Session Management
    • Log4j Version
    • Remote Desktop Softwares
    • Soapui Load Test
    • Scikit Learn Version
    • VMware Benefits
    • Google Slides Shortcuts
    • What is XAMPP?
    • What is PyGTK?
    • VMware Fusion
    • What is cPanel?
    • Ubuntu Version
    • Server Types
    • App Analytics Tools
    • DNS Types
    • Evernote Features
    • Restful architecture
    • GNOME Keyboard Shortcuts
    • AngelScript
    • NativeScript Layouts
    • PowerPoint Version
    • setInterval Function
    • Shopify Apps
    • TypeScript foreach loop
    • Socio Technical System
    • PowerPoint Shortcut Keys
    • Civil Engineering Tools
    • OpenLayers vs Leaflet
    • Circuit Switching Advantages and Disadvantages
    • LotusScript
    • Multiplexer
    • Types of Broadband
    • What is Standardization
    • Methods of Development
    • Software Requirement Specification
    • CentOS restart network
    • Bouncy numbers
    • Burp suite proxy
    • Redshift window functions
    • Mesh Topology Advantages and Disadvantages
    • What is Zabbix?
    • Test Techniques
    • Test Development
    • What is PyCharm
    • What is REST
    • JDBC version
    • System software features
    • Ableton versions
    • Unreal engine version
    • RAD advantage disadvantage
    • Incremental Model Advantage and Disadvantage
    • Disadvantages of Internet
    • What is VoIP
    • WAP Architecture
    • CentOS unzip
    • Cubase Shortcuts
    • Cubase Versions
    • Libreoffice shortcut keys
    • Archiving Software
    • Layered Architecture
    • Coverage Types
    • What is Kivy?
    • Types of Methodology
    • Swift JSON
    • JSON Serialize
    • TypeScript?boolean
    • TypeScript keyof object
    • TypeScript RegEx
    • TypeScript?date
    • TypeScript object
    • CentOS Version
    • XSLT if else
    • Binary Search JavaScript
    • Binary search with recursion
    • Bitbucket Pull Request
    • Bitbucket Add SSH Key
    • Bitbucket Jenkins
    • PLSQL Replace
    • Evernote Notes
    • Rust vs Python
    • Test Scenario
    • Deadlock in Operating System
    • MVVM Architecture
    • What is Keyboard
    • WordPress Hosting
    • Software requirement
    • CentOS Add User to Group
    • Backup Types
    • Firewall Rules
    • Microprocessor Features
    • Maven Versions
    • OneNote features
    • Binary search tree insertion
    • Quick sort algorithm
    • B+ tree insertion
    • What is Automation?
    • What is Digital Electronics?
    • Wireless Transmission Media
    • Border Gateway Protocol
    • Email Encryption Software
    • Endpoint Encryption
    • Outlook Alternative
    • What is Abacus
    • Encapsulation Benefits
    • FL Studio Keyboard Shortcuts
    • NordVPN Features
    • Statsmodels API
    • Statsmodels Linear Regression
    • Buzz number
    • Krishnamurthy Number
    • What is Compact Disc?
    • Bucket Sort Algorithm
    • Insertion Sort Algorithm
    • Redis Version
    • Chatbot Benefits
    • Full Stack Technologies
    • Civil Engineering Types
    • Tomcat Web Server
    • Bitbucket Branching Strategy
    • Anaconda Navigator
    • UML Class Diagram
    • System Monitoring Tool
    • Drupal Features
    • System Software Functions

Related Courses

Software Testing Training

Selenium Training Certification

Appium Training

JMeter Certification Training

Footer
About Us
  • Blog
  • Who is EDUCBA?
  • Sign Up
  • Live Classes
  • Corporate Training
  • Certificate from Top Institutions
  • Contact Us
  • Verifiable Certificate
  • Reviews
  • Terms and Conditions
  • Privacy Policy
  •  
Apps
  • iPhone & iPad
  • Android
Resources
  • Free Courses
  • Java Tutorials
  • Python Tutorials
  • All Tutorials
Certification Courses
  • All Courses
  • Software Development Course - All in One Bundle
  • Become a Python Developer
  • Java Course
  • Become a Selenium Automation Tester
  • Become an IoT Developer
  • ASP.NET Course
  • VB.NET Course
  • PHP Course

© 2022 - EDUCBA. ALL RIGHTS RESERVED. THE CERTIFICATION NAMES ARE THE TRADEMARKS OF THEIR RESPECTIVE OWNERS.

EDUCBA
Free Software Development Course

Web development, programming languages, Software testing & others

*Please provide your correct email id. Login details for this Free course will be emailed to you

By signing up, you agree to our Terms of Use and Privacy Policy.

EDUCBA
Free Software Development Course

Web development, programming languages, Software testing & others

*Please provide your correct email id. Login details for this Free course will be emailed to you

By signing up, you agree to our Terms of Use and Privacy Policy.

Let’s Get Started

By signing up, you agree to our Terms of Use and Privacy Policy.

Loading . . .
Quiz
Question:

Answer:

Quiz Result
Total QuestionsCorrect AnswersWrong AnswersPercentage

Explore 1000+ varieties of Mock tests View more

EDUCBA Login

Forgot Password?

By signing up, you agree to our Terms of Use and Privacy Policy.

This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy

EDUCBA

*Please provide your correct email id. Login details for this Free course will be emailed to you

By signing up, you agree to our Terms of Use and Privacy Policy.

Special Offer - Software Testing Training Learn More