| package manager |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import ( |
| "github.com/apache/trafficcontrol/lib/go-util" |
| "github.com/apache/trafficcontrol/traffic_monitor/health" |
| "github.com/apache/trafficcontrol/traffic_monitor/peer" |
| ) |
| |
| // StartPeerManager listens for peer results, and when it gets one, it adds it to the peerStates list, and optimistically combines the good results into combinedStates |
| func StartPeerManager( |
| peerChan <-chan peer.Result, |
| peerStates peer.CRStatesPeersThreadsafe, |
| events health.ThreadsafeEvents, |
| combineState func(), |
| ) { |
| go func() { |
| for peerResult := range peerChan { |
| comparePeerState(events, peerResult, peerStates) |
| peerStates.Set(peerResult) |
| combineState() |
| peerResult.PollFinished <- peerResult.PollID |
| } |
| }() |
| } |
| |
| func comparePeerState(events health.ThreadsafeEvents, result peer.Result, peerStates peer.CRStatesPeersThreadsafe) { |
| if result.Available != peerStates.GetPeerAvailability(result.ID) { |
| description := util.JoinErrsStr(result.Errors) |
| |
| if description == "" && result.Available { |
| description = "Peer is reachable" |
| } else if description == "" && !result.Available { |
| description = "Peer is unreachable" |
| } |
| |
| events.Add(health.Event{Time: health.Time(result.Time), Description: description, Name: result.ID.String(), Hostname: result.ID.String(), Type: "PEER", Available: result.Available}) |
| } |
| } |