Today, we released version 1.4 of our Kieker framework for continuous monitoring and analysis of software systems.

Selected features:

• JMX monitoring reader and writer
• JMS support for ActiveMQ and HornetQ (in addition to OpenJMS)
• Enable/disable flushing of FS Writer
• Configurable shutdown delay for asynchronous writers
• Configurable Servlet parameters for periodic samplers
• Direct support for asynchronous analysis
• Java 5 no longer supported
• Refined Microbenchmark (+ SPEC macro-benchmark configuration)

Improvements to source code

• Bug fixes, code cleanup, coding conventions
• Integrated the static analysis tools Findbugs, Checkstyle, and PMD
• Integrated a test coverage tool
• Resolved Java warnings

Improvements to documentation

• Extended Java EE Servlet container example to Windows
• Fixes in user guide and examples
• Extended JMS example to ActiveMQ and HornetQ (including Windows)

See the release notes for details.

Today, we released version 1.3 of our Kieker framework for continuous monitoring and analysis of software systems.

New Features:

• Added support for periodic samplers
• Added support for monitoring system-level statistics based on the Sigar API
• MonitoringController no longer restricted to singleton instance
• Added support for custom time sources
• Improved configuration management
• Added named pipe reader/writer (for passing monitoring records directly within same JVM)
• MonitoringController accessible as JMX MBean

API changes

• The format of the kieker.monitoring.properties changed!
• Custom writers will need to be adjusted to a changed interface
• Minor changes in the MonitoringController interface

• Minor bug-fixes and refactorings
  (e.g., renaming Kieker.Tpmon/Tpan->Kieker.Monitoring/Analysis )
• Further enancements to trace analysis tool
  (e.g., analysis & visualization features providing software assembly- & deployment-level views)
• Improved documentation, e.g., brand-new user guide with examples!
• Improved Windows support (e.g., wrapper scripts)

Trace analysis tool improved and extended:

• New internal meta-model, scalable on-the-fly trace reconstruction, …
• Analysis features: e.g., HTML output of reconstructed system model, computation of trace equivalence classes
• Visualizations, e.g., hierarchical dependency graphs (operation-, component-, container-level), sequence diagrams, call graphs

Considerable improvements have been made to Kieker’s architecture, e.g.,

1. a generalized/extensible monitoring record model (more than executions);
2. generalized/extensible writer model (more than database and filesystem); and
3. we introduced a common data model for monitoring and analysis.

This release is the first to include the analysis component Tpan (visualization features currently restricted to sequence diagrams and dependency graphs)!