Hello,

I am happy to announce release 0.23.0 of Hawkular Metrics. This release is anchored by performance and stability improvements.

Here is a list of major changes:

• Performance
  • Prevent BusyPoolException under heavy load due no available connection and queue reaching max size of 256 (HWKMETRICS-542)
  • Gatling load tests have a new option (loops) to specify the number of requests per client (HWKMETRICS-559)
• Deployment
  • Resolved an issue with resource-env-ref in component war (HWKMETRICS-541)
  • Updated packaging to support deployments on WildFly 10.1.0 (HWKMETRICS-558)
• REST API
  • Updated CORS validation to be applied prior to processing the request; this solves an issue where some content is still returned even thought a bad request status is returned (HWKMETRICS-554)
• Internal Monitoring
  • Hostname is now part of the metric id when creating and storing internal metrics (HWKMETRICS-555)
• Hawkular Alerting - Updates
  • Added support for newer condition types to the email plugin (HWKALERTS-208)
  • Allow ExternalCondition to be fired on Event submission; external conditions can now be matched via Event and Data submissions (HWKALERTS-207)
  • Added new NelsonCondition for native Nelson Rule detection; a brand new condition type to perform automatic Nelson Rule detection of misbehaving metrics. (HWKALERTS-209)

Hawkular Alerting - included

• Version 1.5.0
• Project details and repository: Github
• Documentation: REST API, Examples, Developer Guide

Hawkular Metrics Clients

• Python: https://github.com/hawkular/hawkular-client-python
• Go: https://github.com/hawkular/hawkular-client-go
• Ruby: https://github.com/hawkular/hawkular-client-ruby
• Java: https://github.com/hawkular/hawkular-client-java

Release Links

Github Release: https://github.com/hawkular/hawkular-metrics/releases/tag/0.23.0

JBoss Nexus Maven artifacts:
http://origin-repository.jboss.org/nexus/content/repositories/public/org/hawkular/metrics/

Jira release tracker:
https://issues.jboss.org/projects/HWKMETRICS/versions/12332805

A big "Thank you" goes to John Sanda, Matt Wringe, Michael Burman, Joel Takvorian, Jay Shaughnessy, Lucas Ponce, and Heiko Rupp for their project contributions.


Thank you,
Stefan Negrea