SCOUTER is an open source APM and a database monitoring tool. APM means application performance monitoring or application performance management.

• Monitoring target (currently)
  • Opensource WAS - Tomcat, JBoss, Resin ...
  • Opensource DB - MariaDB(on closed beta testing now)

• Monitoring target (hopeful with every contributor)
  • Nodejs, Redis, MongoDB, PostgreSQL, Apach HTTPD, nginX, php ...

Users request application services on a system. The services use resources on the system. You should understand this context in order to manage the system performance effectively. SCOUTER can help you.

• SCOUTER monitoring :
  • Users : ActiveUser, RecentUser, Today Visitor
  • Services : ActiveService, TPS, ResponseTime, Transaction Profile(class,sql,apicall), TagCount
  • Resources : Cpu,Memory,Network and Heap usage, Connection pools etc.

• Getting Started
• Getting Start Profiling SQL
• Client Screen Help
• More Documents

• Latest Release

Scouter has three modules:

• Agent : gather performance information and send to the server

  • Tomcat Agent (Java Agent) : Performance for JVM & Tomcat
    • ASM : using ASM library of OW2 (http://asm.ow2.org/) for BCI(byte code instrumentation)
    • Tools.jar : Java thread dumps, heap dumps, heap histograms, and the other powerful features provided by the JVM as the default.
    • JMX : Some counters for Tomcat & JVM such as GC Count, GC Times etc
  • Linux Agent (Host Agent) : Performance for Linux, Window and OSX
    • Sigar Lib(https://github.com/hyperic/sigar) : A cross-platform process and system utilities module for Java
    • Counters : Cpu, Memory, Disk, Network
  • MariaDB Agent : [to be announced]

• Server (Collector) : received the data from agent and it stores the data. The data is serviced to clients.

  • Scala : Written in Scala. It will provide a variety of features and performance scalability that can not be written in Java.
  • HASH FILE : Server is using the hash index in order to store large data in files.
  • GZIP : Service performance data and profile data are stored is compressed.

• Client (Viewer) : provide the user interfaces

  • Eclipse RCP : SCOUTER is created as a standalone program. So the client can be connected to multiple servers at the same time. It makes easier that users monitor large scale systems.
  • SWT & GEF4 : Charts and Diagrams

• Google Groups

Licensed under the Apache License, Version 2.0