Hawkular Metrics 0.22.0 - Release
A blog post by Stefan Negrea
metrics
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release
I am happy to announce release 0.22.0 of Hawkular Metrics.This release is anchored by performance and compression enhancements.
Here is a list of major changes:
- Compression
- Prevent OutOfMemoryError on Cassandra when compression job runs (HWKMETRICS-520)
- Avoid compression job executing in a loop when execution falls behind (HWKMETRICS-536)
- Avoid future executions of compression job from not running if Cassandra is shutdown abruptly (HWKMETRICS-518)
- Added a flag to disable the compression job; the data will be persisted and retrieved without compression (HWKMETRICS-524)
- The block size for compression is now configurable (HWKMETRICS-545)
- The compression job can now be triggered manually (HWKMETRICS-502)
- Server Clustering
- The external alerter is now cluster-aware and will not process the same request on multiple nodes (HWKMETRICS-515)
- Schema updates are correctly applied when multiple servers are started at the same time (HWKMETRICS-514)
- Added Cassandra connection information to the status page and created an admin version with detailed Cassandra cluster information (HWKMETRICS-526)
- Internal system metrics are now persisted under
admin
tenant; this gives a good overview of the current system load (HWKMETRICS-550)
- REST API
- Added endpoint to allow fetching of available tag names (HWKMETRICS-532)
- Fixed an issue where the API would report an internal server error on invalid query (HWKMETRICS-543)
- Hawkular Alerting - Updates
- End to end performance enhancements
- Major improvements to REST API documentation
- New cross-tenant endpoints for for fetching alerts
- Email and webhook action plugins are now packaged in the main distribution (HWKMETRICS-552)
Hawkular Alerting - included
Hawkular Metrics Clients
Release Links
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.
Published by Stefan Negrea on 06 December 2016