How to: Sizing Cassandra or Scylla for Newts

When you want to store large amounts of non-aggregated data (such as performance metrics), the round robin database (RRDtool) in OpenNMS may not be enough. OpenNMS provides a time-series data store (Newts) that works with Apache Cassandra or ScyllaDB to group metrics for more efficient storage and retrieval. It removes aggregation as a bottleneck to storage, [...]

By |2021-04-01T17:41:09+00:00April 1st, 2021|

OpenNMS Horizon 25.1.2 (Pierogi) Released

Release 25.1.2 is the fourth release in the Horizon 25 series. It contains a number of alarm classification bug fixes and performance improvements, flow enhancements, and more. The codename for 25.1.2 is Pierogi. Bug possible issue in JCIFS Monitor - contiously increase of threads - finally heap dump (Issue NMS-12407) Wrong links in the Help/Support page [...]

By |2020-01-07T19:43:12+00:00January 7th, 2020|

OpenNMS Meridian 2019.1.2 (Earth) Released

Release 2019.1.2 is the third release in the Meridian 2019 series. It contains a number of alarm classification bug fixes and performance improvements, flow enhancements, and more. The codename for 2019.1.2 is Earth. Bug possible issue in JCIFS Monitor - contiously increase of threads - finally heap dump (Issue NMS-12407) Wrong links in the Help/Support page [...]

By |2020-01-07T17:15:39+00:00January 7th, 2020|

OpenNMS On the Horizon – January 6th, 2020 – Graph API, SNMP Profiles, Package Repositories, Documentation, and More!

It's time for OpenNMS On the Horizon! Since before our Holiday break we continued to work on graph and SNMP enhancements, moving packages to a (hopefully) faster and easier-to-manage cloud service, and updated documentation. Github Project Updates Internals, APIs, and Documentation Markus did more work on optimizing and improving the new graph service API. Chandra continued [...]

By |2020-01-06T16:32:05+00:00January 6th, 2020|

OpenNMS On the Horizon – December 16th, 2019 – Documentation, Bug Fixes, Topology and Classification UI, and More!

It's time for OpenNMS On the Horizon! In the last week we updated documentation, fixed a number of important bugs, continued to work on topology and classification UI improvements, and more. Github Project Updates Internals, APIs, and Documentation Ronny worked with Alejandro and Jesse to improve our Newts installation guide to follow more best practice with [...]

By |2019-12-16T19:32:51+00:00December 16th, 2019|

OpenNMS On the Horizon – October 21st, 2019 – Bug Fixing, Packaging, Detectors and Discovery, Reporting, Helm, and More!

It’s time for OpenNMS On the Horizon! In the last week we worked on lots of small bug fixes, packaging updates and improvements, adding detectors to discovery, reporting, and Helm. Github Project Updates Internals, APIs, and Documentation Markus worked on fixing report delivery to some email addresses. Patrick continued to work on fixing event parameter ordering. [...]

By |2019-10-21T19:10:14+00:00October 21st, 2019|

OpenNMS On the Horizon – October 14th, 2019 – Minion, Sentinel, Date Parsing, SNMP Profiles, Discovery, Search, and More!

It’s time for OpenNMS On the Horizon! In the last week we worked on a number of bugs mostly related to Minion and Sentinel, plus date parsing, SNMP profiles, discovery, universal search, and more! Github Project Updates Internals, APIs, and Documentation Marcel and Markus worked on cleaning up the JMX configuration for monitoring JVMs. Patrick continued [...]

By |2019-10-14T13:58:11+00:00October 14th, 2019|
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