OTTL Me Why Transforming Telemetry in the OpenTelemetry Collector Ju... Tyler Helmuth & Evan Bradley

[@johnbradford9541]

OTTL looks like it could be a terrific tool for dynamically instrumenting an app without having to engage the developer. My challenge with it is that the behavior of the where clause in a set statement seems to be inconsistent when matching certain attributes. For example, if the where clause of my set statement looks like this 'attributes["thread.name"] == "ApplicationThread"', the set statement works. If I use the condition attributes["span.kind"] == "client", the set statement never runs. Looking at the data in Jaeger and Splunk APM shows the span.kind attribute set to "client".

[@RonyPlayer]

You should problably enable the debug exporter to double check what you are matching against. Also ask help on the slack channel for CNCF, people are generally helpful there