From bfe8398eacf77f86c3dc38bcb20bb6f627023041 Mon Sep 17 00:00:00 2001
From: yangbinnnn <yangbinnnn@gmail.com>
Date: Mon, 2 Jul 2018 22:30:12 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9agent=20=E7=BC=93=E5=AD=98?=
 =?UTF-8?q?=E7=9A=84lastUpdate=20=E6=9B=B4=E6=96=B0=E7=AD=96=E7=95=A5?=
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原来只在AgentVersion，IP, PluginVersion 变化时，才做缓存更新,
这样一个问题的是没有准确记录agent 的心跳时间，从而导致基于lastUpdate
的一些判断没有意义, 比如DeleteStaleAgents 或者基于lasteUpdate
实现的agent.alive 存活状态就无法实现
---
 modules/hbs/cache/agents.go | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/modules/hbs/cache/agents.go b/modules/hbs/cache/agents.go
index 25d10bbf1..c44f9af19 100644
--- a/modules/hbs/cache/agents.go
+++ b/modules/hbs/cache/agents.go
@@ -19,10 +19,11 @@ package cache
 // 提供http接口查询机器信息，排查重名机器的时候比较有用
 
 import (
-	"github.com/open-falcon/falcon-plus/common/model"
-	"github.com/open-falcon/falcon-plus/modules/hbs/db"
 	"sync"
 	"time"
+
+	"github.com/open-falcon/falcon-plus/common/model"
+	"github.com/open-falcon/falcon-plus/modules/hbs/db"
 )
 
 type SafeAgents struct {
@@ -48,10 +49,12 @@ func (this *SafeAgents) Put(req *model.AgentReportRequest) {
 		agentInfo.ReportRequest.PluginVersion != req.PluginVersion {
 
 		db.UpdateAgent(val)
-		this.Lock()
-		this.M[req.Hostname] = val
-		this.Unlock()
 	}
+
+	// 更新hbs 时间
+	this.Lock()
+	this.M[req.Hostname] = val
+	this.Unlock()
 }
 
 func (this *SafeAgents) Get(hostname string) (*model.AgentUpdateInfo, bool) {