Skip to content

trace2: Capture child_start and child_exit events

Zeger-Jan van de Weg requested to merge zj-trace2-support into master

Git allows a caller to receive metrics and events through GIT_TRACE and relatives; this has been around for a while. If needed, one could enable these before this change with GIT_TRACE=1 ./gitaly on boot. While this works for debugging, it logs a lot of events and thus is not enabled on production system.

This change introduces a mechanism to enable the second iteration of the tracing from Git. Again Git exposes a lot of events and metrics, though now the there's improvements like setting a custom sink, exposing JSON over unstructured text, and better context among lines emitted.

This merge request is a small iteration capturing just 2 events and log those to the usual infrastructure. This allows the rollout to start much quicker, and allows us to add new messages later.

Edited by Zeger-Jan van de Weg

Merge request reports