Open Source Linux Logging Software

A C++ diagnostic logging API that is simple to use, 100% type-safe, generic, infinitely-extensible, atomic, platform-independent, and extremely efficient. And, best of all, it upholds the spirit of C: you only pay for what you use.

CTrace is a multi-threaded trace debug library written in C. It provides a simple, fast, well documented trace utility for applications and as such is especially suitable for use in real-time embedded applications.

An eclipse plugin providing tail in view component.

Flogger - a Free Logger. An easy to use and easy to customize logging library that works on a wide range of operating systems. Write your log entries effortlessly and efficiently to the console, to a file, to a data base or to some other source.

Java log viewer for gnome

An implementation of the Model-View-Controller (MVC) design pattern based on the Jakarta Struts Framework. Includes a core library (Horizon), a servlet container (Stratus), and a Server Pages Engine (Phase). Resembles the J2EE web container environment.

ALF, The Automated Logging Framework, is a native logging framework for Java with the unique advantage of supporting automated method tracing. This platform-independent library allows developers to debug their applications quickly without adding code

Adminlog provides the command line tool "i" which permits administrators to read, write, and share first person notes about their administrative actions on a server.

Ajax is an open-source Java add-on collection mostly for classic desktop apps sporting new widgets (such as such as auto-complete textboxes or tree tables), new data models (such as as XML tree models), new common dialogs and much more.

Analog4J is a tool for analysing Logginginformation. Loginfo can come from files or via online sources like sockets (like log4J SocketAppenders). Loginfo can be displayed, filtered and is prepared in statistics (events per time, etc.)

COMPAS J2EE is a non-intrusive performance instrumentation and monitoring toolkit for J2EE. It uses adaptive monitoring to automatically adjust the target coverage. COMPAS is completely portable across J2EE application servers and OSs.

DBD2 inserts database records from TCP input. It is a companion project to Syslgod2 and an application in its own right. It ships with a backgrounding client for generic use. The client sends whatever information the user puts on the command-line to the back-end daemon via TCP. Upon successful transmission, the client exits. On failure, it backs off and retries until its life-time timer expires. The back-end daemon accepts data from Syslogd2 or its own client and inserts that data (and envelope information) into one or more databases using MySql client library or dbi drivers (also on SourceForge). The client needs no configuration (all input is via command-line). It is intended for hosts to make database entries without needing database client or interface code. Syslogd2 integration allows DBD2 to act as Syslogd2's database back-end for MySql and other databases supported by the dbi drivers. Original purpose was to track Linux cluster job status but other uses exist.

DevJournal is a tool for programmers that helps them be more purposeful and reflective about their work by tracking their edits and allowing them to save a collated, annotated history of their work session.

The graphical `tail -f`. This is a graphical tool to watch text file as they grow, dynamically.

For C (and CPP obviously): Include a fast and tiny RAM-tracing feature for Real-Time (RT) debugging purposes. >> ONLY FOR DEBUGGING << Very much faster than printf-debugging, which may result in unforseen results in an RT environement.

JCola is a file tailing application written in Java Swing. This multithreaded application can tail an unlimited amount of logfiles concurrently and simulates "tail -f" with much more functionality.

Allows JDBC resources to be monitored. You can see when java.sql objects are being opened and closed and can see the line of code where a resource that is still open was originally opened.

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.

Java exception extractor. This utility will parse all files (either plain text or bzipped) and tries to search for various exceptions. It then tries to match exceptions against grouping rules (regexps). It is also able to group unrecognised exceptions.

Implementation neutral logging in Java - binds to whatever logging package it finds on the classpath (Log4J, LogKit, JDK 1.4 logging supported) and exposes a unified interface to it. JULog is for logging what JAXP is for XML parsing in Java!

Lightweight and fast Java logging library for Java. The log statements can be controlled though a simple properties file. The library can be used in standalone and web based applications.

LEMA is an easy to use Log-Server. It supports asynchronous logging of multiple applications (log4j-appender). The logs are processed and save to a database. An RCP-UI supports Live View, History View with advanced filters. You can use it for Error Monitoring / Notification; in order to do this a rule-based labellng (for instance stacktrace grouping) is performed by the server.

Logapp is a wrapper utility that helps supervise the execution of applications that produce heavy console output (e.g. make, CVS and Subversion). It does this by logging, trimming, and coloring each line of the output before displaying it.

A easy to use memory debugger lib for C++ projects. Tracks and logs (if desired) memory allocations, deallocations, memory leaks. A support template class is also provided to check for memory invasions in dynamically allocated memory using operator [].

A PHP logging facility. Supports output to console, local file, syslog and e-mail. Supports message classes and syslog like thresholding. Requires PHP 4.x. Works in either a shell or web environment.