mattjackson220 commented on a change in pull request #4916:
URL: https://github.com/apache/trafficcontrol/pull/4916#discussion_r469506285
##########
File path: traffic_monitor/health/cache.go
##########
@@ -144,177 +191,153 @@ func EvalCache(result cache.ResultInfo, resultStats
*threadsafe.ResultStatValHis
}
if !inThreshold(threshold, resultStatNum) {
- return false, result.UsingIPv4, eventDesc(status,
exceedsThresholdMsg(stat, threshold, resultStatNum)), stat
+ return false, eventDesc(status,
exceedsThresholdMsg(stat, threshold, resultStatNum)), stat
}
}
- return avail, result.UsingIPv4, eventDescVal, eventMsg
+ return avail, eventDescVal, eventMsg
}
-// CalcAvailabilityWithStats calculates the availability of each cache in
results.
-// statResultHistory may be nil, in which case stats won't be used to
calculate availability.
-func CalcAvailability(results []cache.Result, pollerName string,
statResultHistory *threadsafe.ResultStatHistory, mc
tc.LegacyTrafficMonitorConfigMap, toData todata.TOData,
localCacheStatusThreadsafe threadsafe.CacheAvailableStatus, localStates
peer.CRStatesThreadsafe, events ThreadsafeEvents, protocol
config.PollingProtocol) {
- localCacheStatuses := localCacheStatusThreadsafe.Get().Copy()
- statResults := (*threadsafe.ResultStatValHistory)(nil)
- statResultsVal := (*map[string]threadsafe.ResultStatValHistory)(nil)
- processAvailableTuple := func(tuple cache.AvailableTuple, serverInfo
tc.LegacyTrafficServer) bool {
- switch protocol {
- case config.IPv4Only:
+// getProcessAvailableTuple gets a function to process an availability tuple
+// based on the protocol used.
+func getProcessAvailableTuple(protocol config.PollingProtocol)
func(cache.AvailableTuple, tc.TrafficServer) bool {
+ switch protocol {
+ case config.IPv4Only:
+ return func(tuple cache.AvailableTuple, _ tc.TrafficServer)
bool {
return tuple.IPv4
- case config.IPv6Only:
+ }
+ case config.IPv6Only:
+ return func(tuple cache.AvailableTuple, _ tc.TrafficServer)
bool {
return tuple.IPv6
- case config.Both:
- // only report availability based on defined IP
addresses
- if serverInfo.IP == "" {
+ }
+ case config.Both:
+ return func(tuple cache.AvailableTuple, serverInfo
tc.TrafficServer) bool {
+ if serverInfo.IPv4() == "" {
return tuple.IPv6
- } else if serverInfo.IP6 == "" {
+ } else if serverInfo.IPv6() == "" {
return tuple.IPv4
}
- // if both IP addresses are defined then report
availability based on both
return tuple.IPv4 || tuple.IPv6
- default:
- log.Errorln("received an unknown PollingProtocol: " +
protocol.String())
}
- return false
+ default:
+ log.Errorf("received an unknown Polling Protocol: %s", protocol)
}
+ return func(cache.AvailableTuple, tc.TrafficServer) bool { return false
}
+}
+
+// CalcAvailability calculates the availability of each cache in results.
+// statResultHistory may be nil, in which case stats won't be used to calculate
+// availability.
+func CalcAvailability(
+ results []cache.Result,
+ pollerName string,
+ statResultHistory *threadsafe.ResultStatHistory,
+ mc tc.TrafficMonitorConfigMap,
+ toData todata.TOData,
+ localCacheStatusThreadsafe threadsafe.CacheAvailableStatus,
+ localStates peer.CRStatesThreadsafe,
+ events ThreadsafeEvents,
+ protocol config.PollingProtocol,
+) {
+ localCacheStatuses := localCacheStatusThreadsafe.Get().Copy()
+ var statResultsVal *threadsafe.CacheStatHistory
+ processAvailableTuple := getProcessAvailableTuple(protocol)
for _, result := range results {
if statResultHistory != nil {
- t :=
statResultHistory.LoadOrStore(tc.CacheName(result.ID))
+ t := statResultHistory.LoadOrStore(result.ID)
statResultsVal = &t
}
serverInfo, ok := mc.TrafficServer[result.ID]
if !ok {
log.Errorf("Cache %v missing from from Traffic Ops
Monitor Config - treating as OFFLINE\n", result.ID)
}
- if _, ok := localCacheStatuses[tc.CacheName(result.ID)]; !ok {
- localCacheStatuses[tc.CacheName(result.ID)] =
make(map[string]cache.AvailableStatus)
+ availStatus := cache.AvailableStatus{
+ LastCheckedIPv4: result.UsingIPv4,
+ ProcessedAvailable: true,
+ Poller: pollerName,
+ Status: serverInfo.ServerStatus,
}
+ lastStatus, ok := localCacheStatuses[result.ID]
+ if ok {
+ availStatus.Available = lastStatus.Available
+ }
+
+ reasons := []string{}
resultInfo := cache.ToInfo(result)
- for interfaceName, _ := range result.Interfaces() {
- if statResultsVal != nil {
- t := (*statResultsVal)[interfaceName]
- statResults = &t
+ for _, inf := range serverInfo.Interfaces {
+ if !inf.Monitor {
+ continue
}
- isAvailable, usingIPv4, whyAvailable, unavailableStat
:= EvalCache(resultInfo, statResults, &mc)
-
- // if the cache is now Available, and was previously
unavailable due to a threshold, make sure this poller contains the stat which
exceeded the threshold.
- previousStatus, hasPreviousStatus :=
localCacheStatuses[tc.CacheName(result.ID)][interfaceName]
- availableTuple := cache.AvailableTuple{}
-
- if hasPreviousStatus {
- availableTuple = previousStatus.Available
- availableTuple.SetAvailability(usingIPv4,
isAvailable)
-
- if processAvailableTuple(availableTuple,
serverInfo) {
- if
!processAvailableTuple(previousStatus.Available, serverInfo) &&
previousStatus.UnavailableStat != "" {
- if
!result.HasStat(previousStatus.UnavailableStat) {
- return
- }
- }
- }
+
+ available, why :=
EvalInterface(resultInfo.InterfaceVitals, inf)
+ if result.UsingIPv4 {
+ availStatus.Available.IPv4 =
availStatus.Available.IPv4 && available
Review comment:
yea the original plan was for each cycle to only update the status of
what its checking. so if we are checking IPv6 then the Available.IPv4 should
remain as it was and vice versa. it might be as easy as just removing the
`availStatus.Available.IPvX &&` from these lines but havent had a chance to
test that yet
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