serDrem commented on code in PR #7302:
URL: https://github.com/apache/trafficcontrol/pull/7302#discussion_r1113703493


##########
traffic_monitor/cache/astats.go:
##########
@@ -116,8 +119,22 @@ func astatsParse(cacheName string, rdr io.Reader, pollCTX 
interface{}) (Statisti
                astats.Ats["system.proc.loadavg"] = astats.System.ProcLoadavg
                astats.Ats["system.proc.net.dev"] = astats.System.ProcNetDev
 
+               via := ctx.HTTPHeader.Get(rfc.Via)
+               if via != "" {
+                       viaRegexSubmatch := regexp.MustCompile(` 
([^.]+)`).FindStringSubmatch(via)

Review Comment:
   had to modify, but learned non capture groups along the way, pretty cool



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