2018-26.x Release Notes

Learn about new and updated features. 

Support for Histograms

Wavefront histograms let you compute, store, and use distributions of metrics rather than single metrics.  Histograms are useful for high-velocity metrics about your applications and infrastructure – particularly those gathered across many distributed sources. 

Note The histogram feature requires a separate license and is not enabled on your cluster by default. 

New bestEffort() function.  Wrapping any query expression in bestEffort() tells Wavefront to use conservative targets for scheduling workloads.  That means we limit thread use and asynchronous operations. 

New Batch Query Priority permission.  When users with that permission run queries, Wavefront treats every query executed by these users as if it was wrapped in bestEffort(). 

For example, use the new permission if you’ve set up a reporter account that performs Wavefront reporting queries.  By giving the reporter account the Batch Query Priority permission, you can ensure that lower priority queries don’t interfere with higher priority queries such as alerts or interactive user queries. 

Miscellaneous Improvements

The Name field for an AWS integration is now available as a point tag named accountAlias.  As a result, you no longer have to specify the account ID for use in queries but can use the name instead. 

The at() function now works correctly with arguments that depend on window size, such as the vw parameter or windowWidth() function. 

As part of the improved alert notification setup, we’ve added a HTML Email template.  We’ve changed the other template names as follows:

Generic Webhook replaces Webhook Default

PagerDuty Subject replaces PagerDuty Default

Plain Text Email replaces Plain Text

Published a set of videos by co-founder and chief architect Clement Pang about alerting, tagging, getting data into Wavefront, and histograms.  Available in Wavefront playlist of the VMware Techpubs YouTube channel here: