From 940e9644d5b72c5083eacf28c65eb07154d87f67 Mon Sep 17 00:00:00 2001
From: liuxiaolong <736321739@qq.com>
Date: 星期二, 27 八月 2019 17:42:07 +0800
Subject: [PATCH] deal EventMemberLeave
---
agent.go | 56 ++++++++++++++++++++++++++++++++++++++++++--------------
1 files changed, 42 insertions(+), 14 deletions(-)
diff --git a/agent.go b/agent.go
index 4d44c31..9081e8c 100644
--- a/agent.go
+++ b/agent.go
@@ -40,6 +40,8 @@
const (
QueryEventGetDB = "GetDatabase"
QueryEventUpdateDBData = "UpdateDBData"
+ UserEventSyncSql = "SyncSql"
+ UserEventSyncDbTablePersonCache = "SyncCache"
)
// Agent warps the serf agent
@@ -110,6 +112,8 @@
go a.BroadcastMemberlist(BroadcastInterval * time.Second)
}
+var SyncDbTablePersonCacheChan = make(chan []byte,0)
+
// HandleEvent Handles serf.EventMemberJoin events,
// which will wait for members to join until the number of group members is equal to "groupExpect"
// when the startup mode is "ModeCluster",
@@ -118,18 +122,22 @@
switch ev := event.(type) {
case serf.UserEvent:
- //fmt.Println(string(ev.Payload))
- var sqlUe SqlUserEvent
- err := json.Unmarshal(ev.Payload, &sqlUe)
- if err !=nil {
- fmt.Println("sqlUe unmarshal err:",err)
- return
+ if ev.Name == UserEventSyncSql {
+ var sqlUe SqlUserEvent
+ err := json.Unmarshal(ev.Payload, &sqlUe)
+ if err !=nil {
+ fmt.Println("sqlUe unmarshal err:",err)
+ return
+ }
+ if sqlUe.Owner != a.conf.NodeName {
+ //results, err := ExecuteWriteSql(sqlArr)
+ flag, _ := ExecuteSqlByGorm(sqlUe.Sql)
+ fmt.Println("userEvent exec ",sqlUe.Sql,",Result:",flag)
+ }
+ } else if ev.Name == UserEventSyncDbTablePersonCache {
+ SyncDbTablePersonCacheChan <- ev.Payload
}
- if sqlUe.Owner != a.conf.NodeName {
- //results, err := ExecuteWriteSql(sqlArr)
- flag, _ := ExecuteSqlByGorm(sqlUe.Sql)
- fmt.Println("userEvent exec ",sqlUe.Sql,",Result:",flag)
- }
+
case *serf.Query:
@@ -200,6 +208,18 @@
//var res []*Rows
//json.Unmarshal(bytesReturn, &res)
}
+ case serf.MemberEvent:
+ if event.EventType() == serf.EventMemberLeave {
+ if ev.Members !=nil && len(ev.Members) ==1 {
+ leaveMember := ev.Members[0]
+ leaveSql := "delete from cluster_node where node_id='"+leaveMember.Name+"'"
+ ExecuteSqlByGorm([]string{ leaveSql })
+
+ fmt.Println("EventMemberLeave,current Members:",ev.Members)
+ }
+ return
+ }
+
default:
fmt.Printf("Unknown event type: %s\n", ev.EventType().String())
@@ -501,9 +521,17 @@
fmt.Println("sqlUE marshal err:",err)
return
}
- err = a.UserEvent("SyncSql", ueB, false)
+ err = a.UserEvent(UserEventSyncSql, ueB, false)
if err == nil || !strings.Contains(err.Error(), "cannot contain") {
fmt.Println("err: ", err)
+ }
+}
+
+//鏇存柊鍚屾搴撶殑姣斿缂撳瓨
+func (a *Agent) SyncDbTablePersonCache(b []byte) {
+ err := a.UserEvent(UserEventSyncDbTablePersonCache, b, false)
+ if err !=nil{
+ fmt.Println("UserEventSyncDbTablePersonCache err:",err)
}
}
@@ -573,8 +601,8 @@
n, err := a.Agent.Join(nodes, true)
if err != nil || n == 0 {
- a.Stop()
- fmt.Println("Stop node")
+ //a.Stop()
+ //fmt.Println("Stop node")
return fmt.Errorf("Error Encrypt Key!")
}
--
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