Java Application Instrumentation with Log4J
Application metrics, such as performance metrics, are key to understanding and improving application efficiency. Profiling and monitoring tools yield valuable information on CPU and resource usage, including OS
Tutorial Details:
Approaches to Metric Collection
You can extract application-centric metrics, including performance metrics, in many ways. However, no single approach provides a total end-to-end solution that covers all the aspects of an enterprise application. J2EE-centric tools typically leverage one or more of the following approaches:
Log/trace scrapping
Web server logs that conform to well known formats such as the Common
Log Format (CLF) can be processed for information on HTTP operations.
Verbose GC output from the JVM can be analyzed for GC bottlenecks.
JVM hooks
Profilers plug into the JVM itself using the Profiler Interface (JVMPI) (deprecated in 1.5) and Tool Interface (JVMTI) introduced in Java 1.5.
Java Management Extensions (JMX) to publish statistics and notify of state changes and error conditions
JDBC call interception to measure the efficiency and performance of SQL operations
External services
Operating system services such as ps, top, netstat, vmstat, and sar for resource information, and telnet, rsh, and ftp for executing commands to extract such information remotely
SNMP
Homegrown
Code interleaved with homegrown statistic collection and derivation functions, and typically reported via logs
The code instrumentation approach is commonly used to insert code that measures memory, threads, and timing at a very fine-grained level, usually the method level. Code instrumentation is done by either post-processing class files or substituting code on the fly inside the JVM using JVMPI/JVMTI. Once instrumented, metrics can be logged, cached, persisted, or in an agent architecture, forwarded onto to a separate server to manage. The advantage of an agent architecture is that metrics can be captured and collated across multiple sources or tiers.
Read
Tutorial at: Click here to view the tutorial
Rate Tutorial: Java Application Instrumentation with Log4J
View Tutorial: Java Application Instrumentation with Log4J
Related
Tutorials:
 An instrumentation
network for weather data on the
Web
An instrumentation
network for weather data on the
Web
|
Create automated and distributed
management applications with Jiro
technology, Part 1 - JavaWorld February
Create automated and distributed
management applications with Jiro
technology, Part 1 - JavaWorld February 2000
|
JavaWorld
December 1999
JavaWorld
December 1999
|
Use the JVM
Profiler Interface for accurate timing -
JavaWorld
Use the JVM
Profiler Interface for accurate timing -
JavaWorld
|
Log4j delivers
control over logging - JavaWorld November 2000
Log4j delivers
control over logging - JavaWorld November 2000
|
Superior app management with JMX - JavaWorld June
Integrate JMX, a reusable configuration framework, with your JSPs
|
Master the Jxta shell,
Part 1
Master the Jxta shell,
Part 1
|
Rumble in the
jungle: J2EE versus .Net, Part
2
Rumble in the
jungle: J2EE versus .Net, Part
2
|
Interesting
...
Interesting
...
|
Tracing in a multithreaded, multiplatform environment
Tracing in a multithreaded, multiplatform environment
In \"Use a consistent trace system for easier debugging,\" Scott Clee showed you how to trace and log from a custom class to provide a consistent tracing approach across your applications. This approa
|
Improve Application Management With JMX
Improve Application Management With JMX
Leverage JMX technology and existing tools to boost the operations management capabilities of your business applications.
|
Ganymede
A log4j plugin to Eclipse that works similar to chainsaw (SocketServer). Includes color, filtering, detailed information, and saves settings.
|
Performance Analysis of J2EE Applications Using AOP Techniques
Performance Analysis of J2EE Applications Using AOP Techniques
In this article we demonstrate the use of AOP techniques through which J2EE applications can be easily instrumented without any modifications to application code. We have developed a very sim
|
KCC v1.3
KCC v1.3
What is Koalog Code CoverageTM?
Koalog Code CoverageTM is a code coverage computation application written in the JavaTMprogramming language. Koalog Code CoverageTM allows you to measure the efficiency of your tests suite, but also to discover
|
Koalog Constraint Solver v2.2 released
Koalog Constraint Solver v2.2 released
What is Koalog Constraint SolverTM?
Koalog Constraint SolverTM is a powerful JavaTM library for solving combinatorial optimization problems using Constraint Programming or Local Search.
It provides cutting-edge te
|
Mandarax
Mandarax is an open source java class library for deduction rules. It provides an infrastructure for defining, managing and querying rule bases.
|
Reporting Application Errors by Email
Reporting Application Errors by Email
It is common practice for server-side applications to log messages to files on the server's file system. These logs are a vital source of information for system administrators and the application development team. If
|
Java Application Instrumentation with Log4J
Java Application Instrumentation with Log4J
Application metrics, such as performance metrics, are key to understanding and improving application efficiency. Profiling and monitoring tools yield valuable information on CPU and resource usage, including OS
|
Using JConsole to Monitor Applications
JConsole is the Java Monitoring and Management Console, a new graphical tool shipped in J2SE JDK 5.0. This article describes how JConsole can be used to observe information about an application running on the Java platform, with an overview of the J2SE 5.
|
Write custom appenders for log4j
The Apache Software Foundation's log4j logging library is one of the better logging systems around. It's both easier to use and more flexible than Java's built-in logging system.
|
|
|
|
