Open Source Java Logging Software

Elasticsearch is a distributed, RESTful search and analytics engine that lets you store, search and analyze with ease at scale. It lets you perform and combine many types of searches; it scales seamlessly, and offers answers incredibly fast with search results you can rank based on a variety of factors. Elasticsearch can be used for a wide variety of use cases, from maps and metrics to site search and workplace search, and with all data types.

Untangle is a Linux-based network gateway with pluggable modules for network applications like spam blocking, web filtering, anti-virus, anti-spyware, intrusion prevention, bandwidth control, captive portal, VPN, firewall, and more. Visit http://untangle.com

A powerfull tool for analysing application servers logs (websphere, websphere portal, j2ee, custom) in a cluster (or not). It can analyse any log format thanks to a parser plugin approache. You can easily develop your own parser in java (for jboss, bea,.

GeneSyS is an open generic framework for network and system management, based on intelligent software agents using web-services/SOAP. It is a supervision tool for monitoring, management and control of distributed applications built with Java, .NET, PHP.

Tools for the Budget SysAdmin<> Pix Log Parser: It parses pix logs for information and creates reports from it <> SGZLogs. Searches gzipped logs for multiple terms and saves reports.<>

A tool to monitor internet hosts` bandwidth usage in a Linux-NAT network. A daemon collects data and clients display them (currently a Java applet with a graph). It automatically detects new hosts and has a nice summary statistic.

TailBlazer is a graphical version of the UNIX 'tail' utility. It allows you to monitor log files as they are written. New lines appear as they are written. TailBlazer takes this a step further by supporting pattern matching, filtering, and notification

Big-Brother is a collection of J2EE filters and servlets that provide custom monitoring and auditing of web-applications, keeping track of who does what, when, and how often. It makes use of the jakarta-apache Struts framework for the interface GUI.

Platform based on JMS queues to centralize System Event Messages (syslog) and Application Layer Messages, persisting them in several Databases and providing several pre- and post- processes according the message's nature, like encryption, mail.

DAD is a Windows event log and syslog management tool that allows you to aggregate logs from hundreds to thousands of systems in real time. DAD requires no agents on the servers or workstations. Correlation and analysis is driven through a web front end.

An eclipse plugin providing tail in view component.

GILoT is an interpreting and formatting log tail:er. As each log entry is matched and formatted against customizeable rules, only relevant data is parsed. GILoT features, atm, two separate user interfaces, a console UI and an ncurses/charva TUI.

Provide a plugabble and configurable alternative to UNIX tools like grep, awk, tail, head, cut, sort, uniq or even some perl based scripts in a Java environment. A bit like what Apache Ant means to good old make.

monitors logfiles and displays in realtime. log messages may be formatted with different fonts and colors, contents can be parsed, reformated, may even trigger actions playing sounds or executing shell commands. Log can be viewed remotely via webbrowser.

Log4j Viewer is an Eclipse plugin which can read various patterns of log4j's log file and show them in a structured table view which filtering, sorting, searching may apply on.

Log Searcher provided full indexed search engine for log files on each servers. It supported many powerful query types such as phrase queries, wildcard queries, proximity queries, range queries and more with Lucene and Solr technology. It comes with Web interface to search and generate chart accordingly. This project is Open Source project with Apache 2.0 license for allowing you to extra development on top of Log Searcher project. The initial configuration was written on readme.txt before implementation on production line. If you have idea for improvement, you can drop an email to me. Contact: log.searcher[at]yahoo.com

MBM-Log allows to look deeply in collected logs (not only Top 10). All charts are generated on demand. You can easily filter data. MBM-Log can help you with FortiGate diagnostics via SSH (built in commands) Java GUI application.

A tool for Multi-Router Traffic Graphing software, MRTG Spike Remover removes anomalous "spike" data from the MRTG logs in order to faciliatate reading the parts of the graph important to the surveyor, leaving out irrelevant data outliers.

MakeLogic Tail is an advanced "tail -f" command with GUI. It needs JRE 5.0, hence it is 'Tail for Windows', Linux or 'Tail for Mac'. It shows the last few lines of a growing log file in real time. Provides many more easy to use features. Try it!

Insight, the analysis TechTool for developers is a platform independent tool for viewing & analying run time meta data of applications. It aids in trouble shooting problems, and aids the developer in every day work through very advanced log analysis.

Free and Easy to use tool for scientists to manage the references of their work. Automated Fulltext retrieval from the Open Repositories. Flexible Metadata Model and tranformation of metadata to different standard models. nice print formats of the metada

Peepo is a tool for remote analysis of Apache weblogs in real time. It consists of a server that broadcasts Apache logs via UDP and a desktop application that receives, filters and plots them.

PlayBilling is a webbased billing system for internet cafe and wireless hotspot provider mostly written in Java featured with: tariff management, prepaid, postpaid and discounts, user management and extensive reporting system

The ProM Import Framework allows to extract process enactment event logs from a set of information systems. These can be exported in the MXML format, which is the standard event log data format for Process Mining analysis techniques.