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tsweb: remove redundant bumpStartIfNeeded func 

Updates #12001

Signed-off-by: Will Norris <will@tailscale.com>
This commit is contained in:
Will Norris 2024-05-03 15:49:19 -07:00 committed by Will Norris
parent ed843e643f
commit 80decd83c1
1 changed files with 8 additions and 7 deletions
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15
tsweb/tsweb.go
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@ -312,7 +312,6 @@ func (h retHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
}
var bucket string
bumpStartIfNeeded := func() {}
var startRecorded bool
if bs := h.opts.BucketedStats; bs != nil {
bucket = bs.bucketForRequest(r)
@ -320,13 +319,11 @@ func (h retHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
switch v := bs.Started.Map.Get(bucket).(type) {
case *expvar.Int:
// If we've already seen this bucket for, count it immediately.
v.Add(1)
startRecorded = true
case nil:
// Otherwise, for newly seen paths, only count retroactively
// (so started-finished doesn't go negative) so we don't fill
// this LabelMap up with internet scanning spam.
bumpStartIfNeeded = func() { bs.Started.Add(bucket, 1) }
v.Add(1)
startRecorded = true
}
}
}
@ -445,8 +442,12 @@ func (h retHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// gets most of the way there but there are also plenty of URLs that are
// almost right but result in 400s too. Seem easier to just only ignore
// all 4xx and 5xx.
if startRecorded || msg.Code < 400 {
bumpStartIfNeeded()
if startRecorded {
bs.Finished.Add(bucket, 1)
} else if msg.Code < 400 {
// This is the first non-error request for this bucket,
// so count it now retroactively.
bs.Started.Add(bucket, 1)
bs.Finished.Add(bucket, 1)
}
}