how to get database call span in a trace

Policies and Telemetry
1

Hello everyone,

Question

I have a question regarding how to get spans for database calls?

Description

  • According to the documentation when we need to configure pods and service using the conventions given on this link.

  • the Second point is that applications need to pass these request params in egress requests but the issue is that I can handle these things on application code but how to do it on database calls side what I meant is that I cannot change the database client’s code to pass those request headers.

2

Currently envoy doesn’t provide tracing of database calls. However, as you mentioned, you can instrument your application code to generate tracing for the database client, e.g. https://github.com/opentracing-contrib/java-jdbc.

Not sure any databases support tracing on the backend/server side - so not sure its relevant to send the trace context details with the db call?

3

One quick solution that can be done is by developing a wrapper around the database client. That wrapper will process the headers required by istio.