From 8395ef00a651448cc7172c98a36014f98888ac9d Mon Sep 17 00:00:00 2001
From: zhangzengfei <zhangzengfei@smartai.com>
Date: 星期一, 15 五月 2023 18:17:25 +0800
Subject: [PATCH] add default role tag
---
agent.go | 375 ++++++++++-------------------------------------------
1 files changed, 72 insertions(+), 303 deletions(-)
diff --git a/agent.go b/agent.go
index 7483a81..d16148b 100644
--- a/agent.go
+++ b/agent.go
@@ -22,55 +22,49 @@
"errors"
"fmt"
"github.com/hashicorp/memberlist"
- "io/ioutil"
"net"
- "os"
"strconv"
- "sync"
- //"os"
- "strings"
"time"
- "github.com/hashicorp/serf/cmd/serf/command/agent"
- "github.com/hashicorp/serf/serf"
+ "basic.com/valib/serf.git/cmd/serf/command/agent"
+ "basic.com/valib/serf.git/serf"
//"github.com/apache/servicecomb-service-center/pkg/log"
"basic.com/valib/logger.git"
-)
-
-const (
- QueryEventGetDB = "GetDatabase"
- QueryEventUpdateDBData = "UpdateDBData"
- UserEventSyncSql = "SyncSql"
- UserEventSyncDbTablePersonCache = "SyncCache"
)
// Agent warps the serf agent
type Agent struct {
*agent.Agent
- conf *Config
- readyCh chan struct{}
- errorCh chan error
+ ipc *agent.AgentIPC
+ conf *Config
+ readyCh chan struct{}
+ errorCh chan error
+ handleEv HandleEventFunc
}
+//鐢ㄦ埛鑷畾涔変簨浠跺鐞�
+type HandleEventFunc func(event serf.Event)
+
type NodeInfo struct {
- ClusterID string `json:"clusterID"`
- NodeID string `json:"nodeID"`
- NodeAddress string `json:"nodeAddress"`
- IsAlive int `json:"isAlive"`
+ ClusterID string `json:"clusterID"`
+ NodeID string `json:"nodeID"`
+ NodeAddress string `json:"nodeAddress"`
+ IsAlive int `json:"isAlive"`
+ Role string `json:"role"`
}
// Create create serf agent with config
-func Create(conf *Config) (*Agent, error) {
+func Create(conf *Config, snapshotPath string) (*Agent, error) {
// config cover to serf config
- serfConf, err := conf.convertToSerf()
+ serfConf, err := conf.convertToSerf(snapshotPath)
if err != nil {
return nil, err
}
// create serf agent with serf config
logger.Info("conf.Config.EncryptKey:", conf.EncryptKey)
- serfAgent, err := agent.Create(conf.Config, serfConf, nil)
+ serfAgent, err := agent.Create(conf.Config, serfConf, logger.GetLogFile())
if err != nil {
return nil, err
}
@@ -81,6 +75,7 @@
return nil, err
}
serfConf.MemberlistConfig.Keyring = keyring
+
logger.Info("[INFO] agent: Restored keyring with %d keys from %s",
len(conf.EncryptKey), conf.EncryptKey)
@@ -92,15 +87,36 @@
}, nil
}
-// Start agent
+func (a *Agent) RegisterHandleEventFunc(f HandleEventFunc) {
+ if f != nil {
+ a.handleEv = f
+ }
+}
+
+// Start agent and IPC
func (a *Agent) Start(ctx context.Context) {
+ a.RegisterEventHandler(a)
err := a.Agent.Start()
if err != nil {
logger.Error(err, "start serf agent failed")
a.errorCh <- err
return
}
- a.RegisterEventHandler(a)
+
+ ipc := a.startIPC()
+ a.ipc = ipc
+ go func() {
+ for {
+ select {
+ case <-ctx.Done():
+ a.Agent.Shutdown()
+ a.ipc.Shutdown()
+ return
+ default:
+ time.Sleep(1*time.Second)
+ }
+ }
+ }()
err = a.retryJoin(ctx)
if err != nil {
@@ -113,133 +129,35 @@
go a.BroadcastMemberlist(BroadcastInterval * time.Second)
}
-var SyncDbTablePersonCacheChan = make(chan []byte,0)
+func (a *Agent) startIPC() *agent.AgentIPC {
+ // Parse the bind address information
+ bindIP, bindPort, err := a.conf.AddrParts(a.conf.BindAddr)
+ bindAddr := &net.TCPAddr{IP: net.ParseIP(bindIP), Port: bindPort}
+ // Setup the RPC listener
+ rpcListener, err := net.Listen("tcp", a.conf.RPCAddr)
+ if err != nil {
+ logger.Error("Error starting RPC listener:", err)
+ return nil
+ }
+ ipc := agent.NewAgentIPC(a.Agent, a.conf.RPCAuthKey, rpcListener, logger.GetLogFile(), nil)
+ logger.Debug("RPC addr:", a.conf.RPCAddr)
+ logger.Debug("Snapshot:", a.conf.SnapshotPath)
+ logger.Debug("Profile:", a.conf.Profile)
+ logger.Debug("Message Compression Enabled:", a.conf.EnableCompression)
+ logger.Debug("bindAddr:", bindAddr)
+ return ipc
+}
// 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",
// used for logical grouping of serf nodes
func (a *Agent) HandleEvent(event serf.Event) {
-
- switch ev := event.(type) {
- case serf.UserEvent:
- if ev.Name == UserEventSyncSql {
- var sqlUe SqlUserEvent
- err := json.Unmarshal(ev.Payload, &sqlUe)
- if err !=nil {
- logger.Error("sqlUe unmarshal err:",err)
- return
- }
- if sqlUe.Owner != a.conf.NodeName {
- //results, err := ExecuteWriteSql(sqlArr)
- flag, _ := ExecuteSqlByGorm(sqlUe.Sql)
- logger.Info("userEvent exec ",sqlUe.Sql,",Result:",flag)
- }
- } else if ev.Name == UserEventSyncDbTablePersonCache {
- SyncDbTablePersonCacheChan <- ev.Payload
- }
-
-
- case *serf.Query:
-
- if ev.Name == QueryEventGetDB {
- //bak file and send resp
- filename, err := BakDbFile()
- if err != nil {
- logger.Error("bak db file error!")
- return
- }
- logger.Info(filename)
-
- filebuf, err := ioutil.ReadFile(filename)
- logger.Info("filebuf: ", len(filebuf))
- if err != nil {
- logger.Error("file to []bytes error: %s\n", err)
- return
- }
-
- err = os.Remove(filename)
- if err != nil {
- logger.Error("remove file%s\n failed", filename)
- return
- }
-
- logger.Info("query payload: ", len(ev.Payload))
- if query, ok := event.(*serf.Query); ok {
- if err := query.Respond(filebuf); err != nil {
- logger.Error("err: %s\n", err)
- return
- }
- }
- } else if ev.Name == QueryEventUpdateDBData {
- //logger.Info(string(ev.Payload))
- //var tmpstringslice []string
- //tmpstringslice = append(tmpstringslice, string(ev.Payload))
- //logger.Info(tmpstringslice)
- //rows, err := ExecuteQuerySql(tmpstringslice)
- //if err != nil {
- // logger.Error("err: ", err)
- // return
- //}
- //var rowsReturn []Rows
- //for _, r := range rows {
- // rowsReturn = append(rowsReturn, *r)
- //}
- var tableNames []string
- err := json.Unmarshal(ev.Payload, &tableNames)
- if err !=nil {
- logger.Error("Query tableNames unmarshal err")
- return
- }
- logger.Info("Query tableNames:",tableNames)
- datas, err := ExecuteQueryByGorm(tableNames)
- if err !=nil {
- logger.Error("queryByGorm err")
- return
- }
- bytesReturn, err := json.Marshal(datas)
- logger.Info("results.len: ", len(bytesReturn))
- if query, ok := event.(*serf.Query); ok {
- if err := query.Respond(bytesReturn); err != nil {
- logger.Error("err: %s\n", err)
- return
- }
- }
-
- //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 })
-
- logger.Info("EventMemberLeave,current Members:",ev.Members)
- }
- return
- }
-
-
- default:
- logger.Warn("Unknown event type: %s\n", ev.EventType().String())
+ if a.handleEv != nil {
+ a.handleEv(event)
}
-
- //if event.EventType() != serf.EventMemberJoin {
- // logger.Info("event.EventType() != serf.EventMemberJoin")
- // return
- //}
- //
- //if a.conf.Mode == ModeCluster {
- // if len(a.GroupMembers(a.conf.ClusterID)) < groupExpect {
- // logger.Error("len(a.GroupMembers(a.conf.ClusterID)) < groupExpect")
- // return
- // }
- //}
- //a.DeregisterEventHandler(a)
- //close(a.readyCh)
}
+
func (a *Agent) BroadcastMemberlist(delay time.Duration) {
//serf := a.serf
@@ -393,159 +311,9 @@
return
}
-//GetDbFromCluster get the newest database after join cluster
-//dbPathWrite the path where to write after got a database,
-func (a *Agent) GetDbFromCluster(dbPathWrite string) {
- //members: get name of first member
- mbs := a.GroupMembers(a.conf.ClusterID)
- var specmembername string
- for _, m := range mbs {
- if m.Addr.String() != a.conf.BindAddr {
- specmembername = m.Name
- break
- }
- }
- logger.Info(specmembername)
-
- //query: get db file.
- params := serf.QueryParam{
- FilterNodes: strings.Fields(specmembername),
- }
-
- resp, err := a.Query(QueryEventGetDB, []byte(""), ¶ms)
- if err == nil || !strings.Contains(err.Error(), "cannot contain") {
- logger.Error("err: ", err)
- }
-
- go func() {
- respCh := resp.ResponseCh()
- for {
- select {
- case r := <-respCh:
- logger.Info("x length is: ", len(r.Payload))
-
- // // byte to file.
- SerfDbConn.Close()
- SerfDbConn = nil
- err = ioutil.WriteFile(dbPathWrite, r.Payload, 0644)
- if err != nil {
- logger.Error("query byte to file error!", err)
- }
- err := InitDbConn("")
- if err != nil {
- logger.Error("create db conn of test.db error: ", err)
- }
- return
- }
- }
- }()
-}
-
-//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 {
- logger.Info("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
- }
- }
- }
- logger.Info("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") {
- logger.Error("err: ", err)
- }
- logger.Info("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:
- logger.Info("Query response's len:", len(r.Payload))
- err := json.Unmarshal(r.Payload, &dumpSqls)
- if err ==nil {
- logger.Error("dumpSql:",dumpSqls)
- logger.Error("data dump success")
- }
- return
- }
- }
- }()
- wg.Wait()
- return &dumpSqls,nil
-
- //r, err = c.Query([]string{query}, false, false)
- //if err != nil {
- // return err
- //}
- //for _, x := range r[0].Values {
- // y := logger.Info("%s;\n", x[0].(string))
- // if _, err := w.Write([]byte(y)); err != nil {
- // return err
- // }
- //}
-
-}
-
-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,
- }
- ueB, err := json.Marshal(sqlUe)
- if err !=nil {
- logger.Error("sqlUE marshal err:",err)
- return
- }
- err = a.UserEvent(UserEventSyncSql, ueB, false)
- if err == nil || !strings.Contains(err.Error(), "cannot contain") {
- logger.Error("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{
- logger.Error("UserEventSyncDbTablePersonCache err:",err)
- }
-}
-
//Init serf Init
-func Init(clusterID string, password string, nodeID string, addrs []string) (*Agent, error) {
- agent, err := InitNode(clusterID, password, nodeID)
+func Init(clusterID string, password string, nodeID string, addrs []string, snapshotPath string, c *Config) (*Agent, error) {
+ agent, err := InitNode(clusterID, password, nodeID, snapshotPath, c)
if err != nil {
logger.Error("InitNode failed, error: %s", err)
return agent, err
@@ -561,8 +329,10 @@
}
//InitNode web鍚庡彴鏀跺埌鍒涘缓闆嗙兢鐨勮姹傦紝
-func InitNode(clusterID string, password string, nodeID string) (*Agent, error) {
+func InitNode(clusterID string, password string, nodeID string, snapshotPath string, c *Config) (*Agent, error) {
conf := DefaultConfig()
+ conf.MergeConf(c)
+
logger.Info("clusterID:", clusterID, "password:", password, "nodeID:", nodeID)
conf.ClusterID = clusterID
conf.NodeName = nodeID
@@ -577,17 +347,15 @@
}
conf.EncryptKey = password
}
- agent, err := Create(conf)
+ agent, err := Create(conf, snapshotPath)
if err != nil {
logger.Error("create agent failed, error: %s", err)
return agent, err
}
- agent.Start(context.Background())
+ agent.Start(conf.Ctx)
//<- agent.readyCh
- go func() {
- agent.ShutdownCh()
- }()
+
time.Sleep(time.Second)
logger.Info("Stats:", agent.Agent.Serf().Stats())
logger.Info("EncryptionEnabled:", agent.Agent.Serf().EncryptionEnabled())
@@ -639,6 +407,7 @@
node.NodeAddress = mb.Addr.String() + ":" + strconv.Itoa(int(mb.Port))
node.IsAlive = int(mb.Status)
node.ClusterID = mb.Tags[tagKeyClusterID]
+ node.Role = mb.Tags["role"]
nodes = append(nodes, node)
}
--
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