Original comment on #3564 (comment)

There are two different naming styles in EG:

xds_snapshot_creation_total
xds_snapshot_creation_failed
xds_snapshot_creation_success

status_update_total
status_update_failed_total
status_update_success_total
status_update_conflict_total

Prefer the first one. We also need to align "failed, failure, error" to a single term.