zoekt: prometheus metrics and debug logs
Created by: keegancsmith
This includes changes to zoekt which adds request logs and prometheus metrics. This is to aid debugging of performance issues.
We add some points to the "slow search" troubleshooting scenario.
Zoekt now respects SRC_LOG_LEVEL
and won't output "listening on" unless debug
logs are enabled. As such we can remove the "grep -v" we have in the server
procfile entry.
Fixes https://github.com/sourcegraph/sourcegraph/issues/9111