metrics: Add service side metrics for introduction request and rendezvous circuit failures.
This introduces a couple of new service side metrics:
-
hs_intro_rejected_intro_req_count
, which counts the number of introduction requests rejected by the hidden service -
hs_rdv_error_count
, which counts the number of rendezvous errors as seen by the hidden service (this number includes the number of circuit establishment failures, failed retries, end-to-end circuit setup failures)
Closes #40755 (closed). This partially addresses #40717.
Signed-off-by: Gabriela Moldovan gabi@torproject.org
Edited by gabi-250