| | |
| | | "strings" |
| | | "time" |
| | | |
| | | "github.com/hashicorp/serf/cmd/serf/command/agent" |
| | | "github.com/hashicorp/serf/serf" |
| | | "basic.com/valib/serf.git/serf" |
| | | "basic.com/valib/serf.git/cmd/serf/command/agent" |
| | | //"github.com/apache/servicecomb-service-center/pkg/log" |
| | | "basic.com/valib/logger.git" |
| | | "github.com/satori/go.uuid" |
| | | ) |
| | | |
| | | const ( |
| | |
| | | } |
| | | |
| | | // 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 |
| | | } |
| | |
| | | go a.BroadcastMemberlist(BroadcastInterval * time.Second) |
| | | } |
| | | |
| | | var SyncDbTablePersonCacheChan = make(chan []byte,0) |
| | | var SyncDbTablePersonCacheChan = make(chan []byte,512) |
| | | |
| | | // HandleEvent Handles serf.EventMemberJoin events, |
| | | // which will wait for members to join until the number of group members is equal to "groupExpect" |
| | |
| | | switch ev := event.(type) { |
| | | case serf.UserEvent: |
| | | if ev.Name == UserEventSyncSql { |
| | | logger.Info("receive a UserEventSyncSql event") |
| | | var sqlUe SqlUserEvent |
| | | err := json.Unmarshal(ev.Payload, &sqlUe) |
| | | if err !=nil { |
| | | logger.Error("sqlUe unmarshal err:",err) |
| | | return |
| | | } |
| | | |
| | | logger.Info("ev.LTime:", ev.LTime ,"owner:", sqlUe.Owner, "sql:", sqlUe.Sql) |
| | | |
| | | if sqlUe.Owner != a.conf.NodeName { |
| | | |
| | | flag, e := ExecuteSqlByGorm(sqlUe.Sql) |
| | | |
| | | evTime := uint64(ev.LTime) |
| | | logger.Info("ev.LTime:",evTime,"userEvent exec ",sqlUe.Sql,",Result:",flag,", err:",e) |
| | | go func() { |
| | | flag, e := ExecuteSqlByGorm(sqlUe.Sql) |
| | | logger.Info("ev.LTime:",ev.LTime,"userEvent exec ",sqlUe.Sql,",Result:",flag,", err:",e) |
| | | logLT := strconv.Itoa(int(ev.LTime)) |
| | | logT := time.Now().Format("2006-01-02 15:04:05") |
| | | logSql := strings.ReplaceAll(strings.Join(sqlUe.Sql, ";"), "'", "''") |
| | | logResult := "0" |
| | | if flag { |
| | | logResult = "1" |
| | | } |
| | | logErr := "" |
| | | if e != nil { |
| | | logErr = e.Error() |
| | | } |
| | | ExecuteQueryByGorm([]string{"insert into sql_sync_his(`id`,`lTime`,`createTime`,`sql`,`from`,`result`,`err`) values ('"+uuid.NewV4().String()+"','"+ logLT +"','"+logT+"','"+logSql+"','"+sqlUe.Owner+"',"+logResult+",'"+logErr+"')"}) |
| | | }() |
| | | } |
| | | } else if ev.Name == UserEventSyncDbTablePersonCache { |
| | | logger.Info("LTime:",ev.LTime,",ev.Payload.len:",len(ev.Payload)) |
| | |
| | | //for _, r := range rows { |
| | | // rowsReturn = append(rowsReturn, *r) |
| | | //} |
| | | logger.Info("receive QueryEventUpdateDBData, current node:", a.conf.NodeName) |
| | | var fromP QueryTableDataParam |
| | | err := json.Unmarshal(ev.Payload, &fromP) |
| | | if err !=nil { |
| | | logger.Error("Query tableNames unmarshal err") |
| | | if query, ok := event.(*serf.Query); ok { |
| | | if err := query.Respond([]byte("request unmarshal err")); err != nil { |
| | | logger.Error("query.Respond err: %s\n", err) |
| | | return |
| | | } |
| | | } |
| | | return |
| | | } |
| | | logger.Info("Query tableNames:",fromP.Tables) |
| | | datas, err := ExecuteQueryByGorm(fromP.Tables) |
| | | if err !=nil { |
| | | logger.Error("queryByGorm err") |
| | | logger.Error("queryByGorm err:", err) |
| | | if query, ok := event.(*serf.Query); ok { |
| | | if err := query.Respond([]byte("queryByGorm err")); err != nil { |
| | | logger.Error("query.Respond err: %s\n", err) |
| | | return |
| | | } |
| | | } |
| | | return |
| | | } |
| | | bytesReturn, err := json.Marshal(datas) |
| | |
| | | } |
| | | logger.Debug("targetNode:",targetNode.Name) |
| | | if targetNode !=nil { |
| | | addr := targetNode.Addr.String() + ":" + strconv.Itoa(TcpTransportPort) |
| | | sendErr := rawSendTcpMsg(addr, bytesReturn) |
| | | go func() { |
| | | addr := targetNode.Addr.String() + ":" + strconv.Itoa(TcpTransportPort) |
| | | sendErr := rawSendTcpMsg(addr, bytesReturn) |
| | | |
| | | if sendErr != nil { |
| | | logger.Debug("sendToTcp err:",sendErr) |
| | | } else { |
| | | logger.Debug("sendToTcp success") |
| | | } |
| | | logLT := strconv.Itoa(int(ev.LTime)) |
| | | logT := time.Now().Format("2006-01-02 15:04:05") |
| | | logSql := strings.ReplaceAll("QueryEventUpdateDBData from "+targetNode.Name,"'","''") |
| | | logResult := "0" |
| | | logErr := "" |
| | | if sendErr ==nil { |
| | | logResult = "1" |
| | | logger.Debug("sendToTcp success") |
| | | } else { |
| | | logErr = sendErr.Error() |
| | | logger.Debug("sendToTcp err:",sendErr) |
| | | } |
| | | |
| | | |
| | | ExecuteQueryByGorm([]string{"insert into sql_sync_his(`id`,`lTime`,`createTime`,`sql`,`from`,`result`,`err`) values ('"+uuid.NewV4().String()+"','"+ logLT +"','"+logT+"','"+logSql+"','"+targetNode.Name+"',"+logResult+",'"+logErr+"')"}) |
| | | }() |
| | | } else { |
| | | logger.Debug("targetNode is nil") |
| | | } |
| | |
| | | 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 }) |
| | | leaveSql := "update cluster_node set isDelete=1 where node_id='"+leaveMember.Name+"'" |
| | | flag,e := ExecuteSqlByGorm([]string{ leaveSql }) |
| | | |
| | | logger.Info("EventMemberLeave,current Members:",ev.Members) |
| | | logLT := "" |
| | | logT := time.Now().Format("2006-01-02 15:04:05") |
| | | logSql := strings.ReplaceAll(leaveSql, "'","''") |
| | | logResult := "0" |
| | | if flag { |
| | | logResult = "1" |
| | | } |
| | | logErr := "" |
| | | if e != nil { |
| | | logErr = e.Error() |
| | | } |
| | | ExecuteQueryByGorm([]string{"insert into sql_sync_his(`id`,`lTime`,`createTime`,`sql`,`from`,`result`,`err`) values ('"+uuid.NewV4().String()+"','"+ logLT +"','"+logT+"','"+logSql+"','"+leaveMember.Name+"',"+logResult+",'"+logErr+"')"}) |
| | | } |
| | | return |
| | | } else if event.EventType() == serf.EventMemberJoin { |
| | | if ev.Members !=nil && len(ev.Members) ==1 { |
| | | leaveMember := ev.Members[0] |
| | | joinSql := "update cluster_node set isDelete=0 where node_id='"+leaveMember.Name+"'" |
| | | flag,e := ExecuteSqlByGorm([]string{joinSql}) |
| | | |
| | | logger.Info("EventMemberJoin,current Members:",ev.Members) |
| | | logLT := "" |
| | | logT := time.Now().Format("2006-01-02 15:04:05") |
| | | logSql := strings.ReplaceAll(joinSql, "'", "''") |
| | | logResult := "0" |
| | | if flag { |
| | | logResult = "1" |
| | | } |
| | | logErr := "" |
| | | if e != nil { |
| | | logErr = e.Error() |
| | | } |
| | | ExecuteQueryByGorm([]string{"insert into sql_sync_his(`id`,`lTime`,`createTime`,`sql`,`from`,`result`,`err`) values ('"+uuid.NewV4().String()+"','"+ logLT +"','"+logT+"','"+logSql+"','"+leaveMember.Name+"',"+logResult+",'"+logErr+"')"}) |
| | | } |
| | | return |
| | | } |
| | |
| | | var QueryTcpResponseChan = make(chan []byte) |
| | | //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) { |
| | | func (a *Agent) GetTableDataFromCluster(tableNames []string, timeout time.Duration) (*[]string,error) { |
| | | //members: get name of first member |
| | | mbs := a.GroupMembers(a.conf.ClusterID) |
| | | var specmembername string |
| | |
| | | } |
| | | } |
| | | logger.Info("mbs:",mbs,"a.conf.BindAddr:",a.conf.BindAddr,"specmembername:",specmembername) |
| | | if specmembername == "" {//如果未找到目标节点,说明当前集群内除了本节点,没有其他可用节点 |
| | | return nil,errors.New("specmembername not found") |
| | | } |
| | | |
| | | //query: get db file. |
| | | params := serf.QueryParam{ |
| | |
| | | |
| | | var wg sync.WaitGroup |
| | | wg.Add(1) |
| | | go func() { |
| | | ticker := time.NewTicker(timeout) |
| | | go func(tk *time.Ticker) { |
| | | defer tk.Stop() |
| | | defer wg.Done() |
| | | for { |
| | | select { |
| | | case <-tk.C: |
| | | return |
| | | case msg := <- QueryTcpResponseChan: |
| | | logger.Info("Query response's len:", len(msg)) |
| | | err := json.Unmarshal(msg, &dumpSqls) |
| | |
| | | return |
| | | } |
| | | } |
| | | }() |
| | | }(ticker) |
| | | wg.Wait() |
| | | return &dumpSqls,nil |
| | | |
| | |
| | | } |
| | | |
| | | //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) (*Agent, error) { |
| | | agent, err := InitNode(clusterID, password, nodeID, snapshotPath) |
| | | if err != nil { |
| | | logger.Error("InitNode failed, error: %s", err) |
| | | return agent, err |
| | |
| | | } |
| | | |
| | | //InitNode web后台收到创建集群的请求, |
| | | func InitNode(clusterID string, password string, nodeID string) (*Agent, error) { |
| | | func InitNode(clusterID string, password string, nodeID string, snapshotPath string) (*Agent, error) { |
| | | conf := DefaultConfig() |
| | | logger.Info("clusterID:", clusterID, "password:", password, "nodeID:", nodeID) |
| | | conf.ClusterID = clusterID |
| | |
| | | } |
| | | 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 |