From 934c3f788266b32ef4e85b116c6686d1a08d76d7 Mon Sep 17 00:00:00 2001
From: chenshijun <csj_sky@126.com>
Date: 星期五, 06 九月 2019 14:22:11 +0800
Subject: [PATCH] 完善一些业务处里
---
agent.go | 200 ++++++++++++++++++++++++++++++++-----------------
1 files changed, 130 insertions(+), 70 deletions(-)
diff --git a/agent.go b/agent.go
index 1f84e47..f6657d6 100644
--- a/agent.go
+++ b/agent.go
@@ -25,6 +25,8 @@
"io/ioutil"
"net"
"os"
+ "strconv"
+ "sync"
//"os"
"strings"
@@ -37,8 +39,10 @@
)
const (
- QueryEventGetDB = "GetDatabase"
- QueryEventUpdateDBData = "UpdateDBData"
+ QueryEventGetDB = "GetDatabase"
+ QueryEventUpdateDBData = "UpdateDBData"
+ UserEventSyncSql = "SyncSql"
+ UserEventSyncDbTablePersonCache = "SyncCache"
)
// Agent warps the serf agent
@@ -117,17 +121,19 @@
switch ev := event.(type) {
case serf.UserEvent:
- var sqlUe SqlUserEvent
- fmt.Println(string(ev.Payload))
- err := json.Unmarshal(ev.Payload, &sqlUe)
- if err !=nil {
- fmt.Println("sqlUe unmarshal err:",err)
- return
- }
- if sqlUe.Owner != a.conf.NodeName {
- results, _ := ExecuteWriteSql(sqlUe.Sql)
- //flag, _ := ExecuteSqlByGorm(sqlUe.Sql)
- fmt.Println("userEvent exec ",sqlUe.Sql,",Result:",results)
+ if ev.Name == UserEventSyncSql {
+ var sqlUe SqlUserEvent
+ fmt.Println(string(ev.Payload))
+ err := json.Unmarshal(ev.Payload, &sqlUe)
+ if err != nil {
+ fmt.Println("sqlUe unmarshal err:", err)
+ return
+ }
+ if sqlUe.Owner != a.conf.NodeName {
+ results, _ := ExecuteWriteSql(sqlUe.Sql, true)
+ //flag, _ := ExecuteSqlByGorm(sqlUe.Sql)
+ fmt.Println("userEvent exec ", sqlUe.Sql, ",Result:", results)
+ }
}
case *serf.Query:
@@ -188,37 +194,25 @@
//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+"'"
- fmt.Println("leaveSql:",leaveSql)
- //ExecuteSqlByGorm([]string{ leaveSql })
-
- fmt.Println("EventMemberLeave,current Members:",ev.Members)
+ 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 + "'"
+ fmt.Println("leaveSql:", leaveSql)
+ _, err := ExecuteWriteSql([]string{leaveSql}, false)
+ if err != nil {
+ fmt.Printf("err: %s\n", err)
}
- return
- }
+ fmt.Println("EventMemberLeave,current Members:", ev.Members)
+ }
+ return
+ }
default:
fmt.Printf("Unknown event type: %s\n", ev.EventType().String())
}
-
- //if event.EventType() != serf.EventMemberJoin {
- // fmt.Printf("event.EventType() != serf.EventMemberJoin")
- // return
- //}
- //
- //if a.conf.Mode == ModeCluster {
- // if len(a.GroupMembers(a.conf.ClusterID)) < groupExpect {
- // fmt.Printf("len(a.GroupMembers(a.conf.ClusterID)) < groupExpect")
- // return
- // }
- //}
- //a.DeregisterEventHandler(a)
- //close(a.readyCh)
}
func (a *Agent) BroadcastMemberlist(delay time.Duration) {
@@ -421,37 +415,97 @@
}()
}
-type SqlUserEvent struct {
- Owner string `json:"owner"`
- Sql []string `json:"sql"`
+//GetDbFromCluster get the newest database after join cluster
+//dbPathWrite the path where to write after got a database,
+func (a *Agent) GetTableDataFromCluster(tableNames []string) (*[]string, error) {
+ //members: get name of first member
+ mbs := a.GroupMembers(a.conf.ClusterID)
+ var specmembername string
+ for _, m := range mbs {
+ fmt.Println("m", m)
+ if m.Name != a.conf.NodeName { //鍓嶇紑锛欴SVAD:鍒嗘瀽鏈嶅姟鍣� DSPAD:杩涘嚭鍏ad
+ if strings.HasPrefix(a.conf.NodeName, "DSVAD"){
+ if strings.HasPrefix(m.Name, "DSVAD") {
+ specmembername = m.Name
+ break
+ }
+ }else{
+ specmembername = m.Name
+ break
+ }
+ }
+ }
+ fmt.Println("mbs:", mbs, "a.conf.BindAddr:", a.conf.BindAddr, "specmembername:", specmembername)
+
+ //query: get db file.
+ params := serf.QueryParam{
+ FilterNodes: strings.Fields(specmembername),
+ }
+
+ //SQL
+ tBytes, _ := json.Marshal(tableNames)
+
+ resp, err := a.Query(QueryEventUpdateDBData, tBytes, ¶ms)
+ if err == nil || !strings.Contains(err.Error(), "cannot contain") {
+ fmt.Println("err: ", err)
+ }
+ fmt.Println("Query.resp.err:", err, "resp:", resp)
+
+ var wg sync.WaitGroup
+ wg.Add(1)
+ var dumpSqls []string
+ go func() {
+ defer wg.Done()
+ respCh := resp.ResponseCh()
+ for {
+ select {
+ case r := <-respCh:
+ fmt.Println("Query response's len:", len(r.Payload))
+ err := json.Unmarshal(r.Payload, &dumpSqls)
+ if err == nil {
+ fmt.Println("dumpSql:", dumpSqls)
+ fmt.Println("data dump success")
+ }
+ return
+ }
+ }
+ }()
+ wg.Wait()
+ return &dumpSqls, nil
}
+
+type SqlUserEvent struct {
+ Owner string `json:"owner"`
+ Sql []string `json:"sql"`
+}
+
//SyncSql boardcast sql to cluster
func (a *Agent) SyncSql(sqlOp []string) {
// event : use to send command to operate db.
var sqlUe = SqlUserEvent{
Owner: a.conf.NodeName,
- Sql: sqlOp,
+ Sql: sqlOp,
}
ueB, err := json.Marshal(sqlUe)
- if err !=nil {
- fmt.Println("sqlUE marshal err:",err)
+ if err != nil {
+ fmt.Println("sqlUE marshal err:", err)
return
}
- err = a.UserEvent("SyncSql", []byte(ueB), false)
+ err = a.UserEvent(UserEventSyncSql, ueB, false)
if err == nil || !strings.Contains(err.Error(), "cannot contain") {
fmt.Println("err: ", err)
}
}
//Init serf Init
-func Init(clusterID string, password string, nodeID string, ips []string) (*Agent, error) {
+func Init(clusterID string, password string, nodeID string, addrs []string) (*Agent, error) {
agent, err := InitNode(clusterID, password, nodeID)
if err != nil {
fmt.Printf("InitNode failed, error: %s", err)
return agent, err
}
- err = agent.JoinByNodeIP(ips)
+ err = agent.JoinByNodeAddrs(addrs)
if err != nil {
fmt.Printf("JoinByNodeIP failed, error: %s", err)
return agent, err
@@ -496,43 +550,49 @@
return agent, nil
}
-func (a *Agent) JoinByNodeIP(ips []string) error {
+func (a *Agent) JoinByNodeAddrs(addrs []string) error {
var nodes []string
- if len(ips) == 0 {
+ if len(addrs) == 0 {
return fmt.Errorf("No Nodes To Join!")
}
- for _, ip := range ips {
- node := fmt.Sprintf("%s:%d", ip, DefaultBindPort)
- nodes = append(nodes, node)
+ for _, addr := range addrs {
+ nodes = append(nodes, addr)
}
- n, err := a.Agent.Join(nodes, true)
- if err != nil || n == 0 {
- //a.Stop()
- //fmt.Println("Stop node")
- return fmt.Errorf("Error Encrypt Key!")
- }
+ a.Agent.Join(nodes, true)
- return err
+ return nil
}
-type Node struct {
- clusterID string
- NodeID string
- IP string
- isAlive int //StatusNone:0, StatusAlive:1, StatusLeaving:2, StatusLeft:3, StatusFailed:4
-}
+//func (a *Agent) JoinByNodeIP(ips []string) error {
+// var nodes []string
+//
+// if len(ips) == 0 {
+// return fmt.Errorf("No Nodes To Join!")
+// }
+// for _, ip := range ips {
+// node := fmt.Sprintf("%s:%d", ip, DefaultBindPort)
+// nodes = append(nodes, node)
+// }
+//
+// n, err := a.Agent.Join(nodes, true)
+// if err != nil || n == 0 {
+// return fmt.Errorf("Error Encrypt Key!")
+// }
+//
+// return err
+//}
-func (a *Agent) GetNodes() (nodes []Node) {
- var node Node
+func (a *Agent) GetNodes() (nodes []NodeInfo) {
+ var node NodeInfo
fmt.Println("a.conf.ClusterID:", a.conf.ClusterID)
mbs := a.GroupMembers(a.conf.ClusterID)
for _, mb := range mbs {
node.NodeID = mb.Name
- node.IP = mb.Addr.String()
- node.isAlive = int(mb.Status)
- node.clusterID = mb.Tags[tagKeyClusterID]
+ node.NodeAddress = mb.Addr.String() + ":" + strconv.Itoa(int(mb.Port))
+ node.IsAlive = int(mb.Status)
+ node.ClusterID = mb.Tags[tagKeyClusterID]
nodes = append(nodes, node)
}
--
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