//apend data
func (self *SegmentLog) Appends(logs []*oplog) error {
//if closed
if self.isOpen == 0 {
return errors.New(fmt.Sprintf("SegmentLog Is Closed!|%s", self.path))
}
length := int64(0)
for _, lo := range logs {
tmp := lo.marshal()
for {
l, err := self.bw.Write(tmp)
length += int64(l)
if nil != err && err != io.ErrShortWrite {
log.ErrorLog("kite_store", "SegmentLog|Append|FAIL|%s|%d/%d", err, l, len(tmp))
return err
} else if nil == err {
break
} else {
self.bw.Reset(self.wf)
log.ErrorLog("kite_store", "SegmentLog|Append|FAIL|%s", err)
}
tmp = tmp[l:]
}
}
//flush
self.bw.Flush()
//move offset
atomic.AddInt64(&self.offset, int64(length))
return nil
}
//获取订阅关系并添加watcher
func (self *ZKManager) GetBindAndWatch(topic string) (map[string][]*Binding, error) {
path := KITEQ_SUB + "/" + topic
exist, _, _, err := self.session.ExistsW(path)
if !exist {
//不存在订阅关系的时候需要创建该topic和
return make(map[string][]*Binding, 0), err
}
//获取topic下的所有qserver
groupIds, _, _, err := self.session.ChildrenW(path)
if nil != err {
log.ErrorLog("kite_bind", "ZKManager|GetBindAndWatch|GroupID|FAIL|%s|%s\n", err, path)
return nil, err
}
hps := make(map[string][]*Binding, len(groupIds))
//获取topic对应的所有groupId下的订阅关系
for _, groupId := range groupIds {
tmppath := path + "/" + groupId
binds, err := self.getBindData(tmppath)
if nil != err {
log.ErrorLog("kite_bind", "GetBindAndWatch|getBindData|FAIL|%s|%s\n", tmppath, err)
continue
}
//去掉分组后面的-bind
gid := strings.TrimSuffix(groupId, "-bind")
hps[gid] = binds
}
return hps, nil
}
func (self *KiteMysqlStore) Query(messageId string) *MessageEntity {
var entity *MessageEntity
s := self.sqlwrapper.hashQuerySQL(messageId)
rows, err := self.dbshard.FindSlave(messageId).Query(s, messageId)
if nil != err {
log.ErrorLog("kite_store", "KiteMysqlStore|Query|FAIL|%s|%s\n", err, messageId)
return nil
}
defer rows.Close()
if rows.Next() {
entity = &MessageEntity{}
fc := self.convertor.convertFields(entity, filternothing)
err := rows.Scan(fc...)
if nil != err {
log.ErrorLog("kite_store", "KiteMysqlStore|Query|SCAN|FAIL|%s|%s\n", err, messageId)
return nil
}
self.convertor.Convert2Entity(fc, entity, filternothing)
switch entity.MsgType {
case protocol.CMD_BYTES_MESSAGE:
//do nothing
case protocol.CMD_STRING_MESSAGE:
entity.Body = string(entity.GetBody().([]byte))
}
}
return entity
}
func (self *KiteQServer) startCheckConf() {
go func() {
t := time.NewTicker(1 * time.Minute)
for !self.stop {
so := ServerOption{}
err := loadTomlConf(self.kc.so.configPath, self.kc.so.clusterName,
self.kc.so.bindHost, self.kc.so.pprofPort, &so)
if nil != err {
log.ErrorLog("kite_server", "KiteQServer|startCheckConf|FAIL|%s", err)
}
//新增或者减少topics
if len(so.topics) != len(self.kc.so.topics) {
//推送可发送的topic列表并且获取了对应topic下的订阅关系
succ := self.exchanger.PushQServer(self.kc.so.bindHost, so.topics)
if !succ {
log.ErrorLog("kite_server", "KiteQServer|startCheckConf|PushQServer|FAIL|%s|%s\n", err, so.topics)
} else {
log.InfoLog("kite_server", "KiteQServer|startCheckConf|PushQServer|SUCC|%s\n", so.topics)
}
//重置数据
self.kc.so = so
}
<-t.C
}
t.Stop()
}()
}
//迁移过期的消息
func (self *KiteMysqlStore) migrateMessage(now int64, hashKey string) {
log.InfoLog("kite_store", "KiteMysqlStore|MoveExpired|START|%s|%d", hashKey)
//需要将过期的消息迁移到DLQ中
sql := self.sqlwrapper.hashDLQSQL(DLQ_MOVE_QUERY, hashKey)
//获取到需要导入的id，然后导入
isql := self.sqlwrapper.hashDLQSQL(DLQ_MOVE_INSERT, hashKey)
//删除已导入的数据
dsql := self.sqlwrapper.hashDLQSQL(DLQ_MOVE_DELETE, hashKey)
start := 0
limit := 50
for {
messageIds := make([]interface{}, 1, 50)
err := func() error {
rows, err := self.dbshard.FindSlave(hashKey).Query(sql, self.serverName, now, start, limit)
if err != nil {
log.ErrorLog("kite_store", "KiteMysqlStore|migrateMessage|Query|FAIL|%s|%s|%s", err, hashKey, sql)
return err
}
defer rows.Close()
for rows.Next() {
var id int
var messageId string
err = rows.Scan(&id, &messageId)
if nil != err {
log.ErrorLog("kite_store", "KiteMysqlStore|MoveExpired|Scan|FAIL|%s|%s|%s", err, hashKey, sql)
} else {
start = id
messageIds = append(messageIds, messageId)
}
}
return nil
}()
//已经搬迁完毕则退出进行下一个
if nil != err || len(messageIds[1:]) <= 0 {
log.WarnLog("kite_store", "KiteMysqlStore|MoveExpired|SUCC|%s|%d|%s", hashKey, start, err)
break
}
in := strings.Repeat("?,", len(messageIds[1:]))
in = in[:len(in)-1]
isqlTmp := strings.Replace(isql, "{ids}", in, 1)
_, err = self.dbshard.FindMaster(hashKey).Exec(isqlTmp, messageIds[1:]...)
if err != nil {
log.ErrorLog("kite_store", "KiteMysqlStore|MoveExpired|Insert|FAIL|%s|%s", err, isqlTmp, messageIds)
break
}
dsqlTmp := strings.Replace(dsql, "{ids}", in, 1)
messageIds[0] = self.serverName
_, err = self.dbshard.FindMaster(hashKey).Exec(dsqlTmp, messageIds...)
if err != nil {
log.ErrorLog("kite_store", "KiteMysqlStore|MoveExpired|DELETE|FAIL|%s|%s|%s|%s", err, dsql, dsqlTmp, messageIds)
break
}
}
}
//没有body的entity
func (self *KiteMysqlStore) PageQueryEntity(hashKey string, kiteServer string, nextDeliveryTime int64, startIdx, limit int) (bool, []*MessageEntity) {
s := self.sqlwrapper.hashPQSQL(hashKey)
// log.Println(s)
rows, err := self.dbshard.FindSlave(hashKey).
Query(s, kiteServer, time.Now().Unix(), nextDeliveryTime, startIdx, limit+1)
if err != nil {
log.ErrorLog("kite_store", "KiteMysqlStore|Query|FAIL|%s|%s\n", err, hashKey)
return false, nil
}
defer rows.Close()
results := make([]*MessageEntity, 0, limit)
for rows.Next() {
entity := &MessageEntity{}
fc := self.convertor.convertFields(entity, filterbody)
err := rows.Scan(fc...)
if err != nil {
log.ErrorLog("kite_store", "KiteMysqlStore|PageQueryEntity|FAIL|%s|%s|%d|%d\n", err, kiteServer, nextDeliveryTime, startIdx)
} else {
self.convertor.Convert2Entity(fc, entity, filterbody)
results = append(results, entity)
}
}
if len(results) > limit {
return true, results[:limit]
} else {
return false, results
}
}
func (self *Segment) Close() error {
self.Lock()
defer self.Unlock()
if atomic.CompareAndSwapInt32(&self.isOpen, 1, 0) {
//close segment log
self.slog.Close()
//close segment
err := self.bw.Flush()
if nil != err {
log.ErrorLog("kite_store", "Segment|Close|Writer|FLUSH|FAIL|%s|%s|%s\n", err, self.path, self.name)
}
//free chunk memory
self.chunks = nil
err = self.wf.Close()
if nil != err {
log.ErrorLog("kite_store", "Segment|Close|Write FD|FAIL|%s|%s|%s\n", err, self.path, self.name)
return err
} else {
err = self.rf.Close()
if nil != err {
log.ErrorLog("kite_store", "Segment|Close|Read FD|FAIL|%s|%s|%s\n", err, self.path, self.name)
}
return err
}
}
return nil
}
//发布订阅关系
func (self *ZKManager) PublishBindings(groupId string, bindings []*Binding) error {
//按topic分组
groupBind := make(map[string][]*Binding, 10)
for _, b := range bindings {
g, ok := groupBind[b.Topic]
if !ok {
g = make([]*Binding, 0, 2)
}
b.GroupId = groupId
g = append(g, b)
groupBind[b.Topic] = g
}
for topic, binds := range groupBind {
data, err := MarshalBinds(binds)
if nil != err {
log.ErrorLog("kite_bind", "ZKManager|PublishBindings|MarshalBind|FAIL|%s|%s|%t\n", err, groupId, binds)
return err
}
createType := zk.CreatePersistent
path := KITEQ_SUB + "/" + topic
//注册对应topic的groupId //注册订阅信息
succpath, err := self.registePath(path, groupId+"-bind", createType, data)
if nil != err {
log.ErrorLog("kite_bind", "ZKManager|PublishTopic|Bind|FAIL|%s|%s/%s\n", err, path, binds)
return err
} else {
log.InfoLog("kite_bind", "ZKManager|PublishTopic|Bind|SUCC|%s|%s\n", succpath, binds)
}
}
return nil
}
//内部创建节点的方法
func (self *ZKManager) innerCreatePath(tmppath string, data []byte, createType zk.CreateType) error {
exist, _, _, err := self.session.ExistsW(tmppath)
if nil == err && !exist {
_, err := self.session.Create(tmppath, data, createType, zk.WorldACL(zk.PermAll))
if nil != err {
log.ErrorLog("kite_bind", "ZKManager|innerCreatePath|FAIL|%s|%s\n", err, tmppath)
return err
}
//做一下校验等待
for i := 0; i < 5; i++ {
exist, _, _ = self.session.Exists(tmppath)
if !exist {
time.Sleep(time.Duration(i*100) * time.Millisecond)
} else {
break
}
}
return err
} else if nil != err {
log.ErrorLog("kite_bind", "ZKManager|innerCreatePath|FAIL|%s\n", err)
return err
} else if nil != data {
//存在该节点，推送新数据
_, err := self.session.Set(tmppath, data, -1)
if nil != err {
log.ErrorLog("kite_bind", "ZKManager|innerCreatePath|PUSH DATA|FAIL|%s|%s|%s\n", err, tmppath, string(data))
return err
}
}
return nil
}
func (self convertor) Convert2Params(entity *store.MessageEntity) []interface{} {
val := reflect.ValueOf(*entity)
fvs := make([]interface{}, 0, len(self.columns))
for _, v := range self.columns {
var fv interface{}
if v.columnName == "body" {
if entity.MsgType == protocol.CMD_STRING_MESSAGE {
fv = []byte(entity.GetBody().(string))
} else if entity.MsgType == protocol.CMD_BYTES_MESSAGE {
fv = entity.GetBody().([]byte)
} else {
log.ErrorLog("kite_store", "convertor|Convert2Params|UnSupport MESSAGE TYPE|%s\n", entity.MsgType)
}
} else {
f := val.FieldByName(v.fieldName)
// log.Debug("convertor|Convert2Params|%s|%s\n", v.fieldName, f)
switch f.Kind() {
case reflect.Ptr:
header, ok := f.Interface().(*protocol.Header)
if ok {
//头部用Pb序列化
data, err := protocol.MarshalPbMessage(header)
if err != nil {
log.ErrorLog("kite_store", "convertor|Convert2Params|Marshal|HEAD|FAIL|%s|%s\n", err, f.Addr().Interface())
return nil
}
fv = data
} else {
log.ErrorLog("kite_store", "convertor|Convert2Params|Not protocol.Header PRT |FAIL|%s\n", f.Addr())
return nil
}
case reflect.Slice, reflect.Array:
if f.Type().Elem().Kind() == reflect.String {
data, err := json.Marshal(f.Interface())
if nil != err {
log.ErrorLog("kite_store", "convertor|Convert2Params|Marshal|Slice|FAIL||%s\n", err)
return nil
}
fv = string(data)
} else {
fv = f.Interface()
}
default:
fv = f.Interface()
}
}
fvs = append(fvs, &fv)
}
return fvs
}
func (self *KiteMysqlStore) Start() {
count := SHARD_SEED
//创建Hash的channel
batchDelChan := make([]chan string, 0, count)
batchUpChan := make([]chan *MessageEntity, 0, count)
batchComChan := make([]chan string, 0, count)
for i := 0; i < count; i++ {
batchUpChan = append(batchUpChan, make(chan *MessageEntity, self.batchUpSize*2))
batchDelChan = append(batchDelChan, make(chan string, self.batchDelSize*2))
batchComChan = append(batchComChan, make(chan string, self.batchUpSize*2))
}
//批量的channel
self.batchUpChan = batchUpChan
self.batchDelChan = batchDelChan
self.batchComChan = batchComChan
//创建每种批量的preparedstmt
stmts := make(map[batchType][][]*StmtPool, 4)
for k, v := range self.sqlwrapper.batchSQL {
btype := k
pool := make([][]*StmtPool, 0, self.dbshard.ShardNum())
//对每个shard构建stmt的pool
for i := 0; i < self.dbshard.ShardNum(); i++ {
innerPool := make([]*StmtPool, 0, self.dbshard.HashNum())
for j, s := range v {
psql := s
db := self.dbshard.FindShardById(i*self.dbshard.HashNum() + j).master
err, p := NewStmtPool(5, 10, 20, 1*time.Minute, func() (error, *sql.Stmt) {
stmt, err := db.Prepare(psql)
if nil != err {
log.ErrorLog("kite_store", "StmtPool|Create Stmt|FAIL|%s|%s\n", err, psql)
return err, nil
}
return nil, stmt
})
if nil != err {
log.ErrorLog("kite_store", "NewKiteMysql|NewStmtPool|FAIL|%s\n", err)
panic(err)
}
innerPool = append(innerPool, p)
}
pool = append(pool, innerPool)
}
stmts[btype] = pool
}
self.stmtPools = stmts
for i := 0; i < count; i++ {
// log.Printf("KiteMysqlStore|start|SQL|%s\n|%s\n", sqlu, sqld)
self.startBatch(i, self.batchUpChan[i],
self.batchDelChan[i], self.batchComChan[i])
}
log.InfoLog("kite_store", "KiteMysqlStore|Start...")
}
func (self *KiteMysqlStore) batchUpdate(hashId int, entity []*MessageEntity) bool {
if len(entity) <= 0 {
return true
}
p := self.stmtPool(UPDATE, entity[0].MessageId)
err, stmt := p.Get()
if nil != err {
log.ErrorLog("kite_store", "KiteMysqlStore|batchUpdate|GET STMT|FAIL|%s|%d\n", err, hashId)
return false
}
defer p.Release(stmt)
args := make([]interface{}, 0, 5)
var errs error
for _, e := range entity {
args = args[:0]
sg, err := json.Marshal(e.SuccGroups)
if nil != err {
log.ErrorLog("kite_store", "KiteMysqlStore|batchUpdate|SUCC GROUP|MARSHAL|FAIL|%s|%s|%s\n", err, e.MessageId, e.SuccGroups)
errs = err
continue
}
args = append(args, sg)
fg, err := json.Marshal(e.FailGroups)
if nil != err {
log.ErrorLog("kite_store", "KiteMysqlStore|batchUpdate|FAIL GROUP|MARSHAL|FAIL|%s|%s|%s\n", err, e.MessageId, e.FailGroups)
errs = err
continue
}
args = append(args, fg)
//设置一下下一次投递时间
args = append(args, e.NextDeliverTime)
args = append(args, e.DeliverCount)
args = append(args, e.MessageId)
_, err = stmt.Exec(args...)
if nil != err {
log.ErrorLog("kite_store", "KiteMysqlStore|batchUpdate|FAIL|%s|%s\n", err, e)
errs = err
}
}
return nil == errs
}
func (self *KiteFileStore) Query(messageId string) *MessageEntity {
lock, _, el := self.hash(messageId)
lock.RLock()
defer lock.RUnlock()
e, ok := el[messageId]
if !ok {
return nil
}
v := e.Value.(*opBody)
//wait save done
self.waitSaveDone(v)
data, err := self.snapshot.Query(v.Id)
if nil != err {
// log.Error("KiteFileStore|Query|Entity|FAIL|%s|%d", err, v.Id)
return nil
}
var msg interface{}
msgType := data[0]
switch msgType {
case protocol.CMD_BYTES_MESSAGE:
var bms protocol.BytesMessage
err = protocol.UnmarshalPbMessage(data[1:], &bms)
msg = &bms
case protocol.CMD_STRING_MESSAGE:
var sms protocol.StringMessage
err = protocol.UnmarshalPbMessage(data[1:], &sms)
msg = &sms
default:
log.ErrorLog("kite_store", "KiteFileStore|Query|INVALID|MSGTYPE|%d", msgType)
return nil
}
if nil != err {
log.ErrorLog("kite_store", "KiteFileStore|Query|UnmarshalPbMessage|Entity|FAIL|%s", err)
return nil
} else {
entity := NewMessageEntity(protocol.NewQMessage(msg))
//merge data
entity.Commit = v.Commit
entity.FailGroups = v.FailGroups
entity.SuccGroups = v.SuccGroups
entity.NextDeliverTime = v.NextDeliverTime
entity.DeliverCount = v.DeliverCount
return entity
}
}
func (self *Segment) Open(do func(ol *oplog)) error {
self.Lock()
defer self.Unlock()
if atomic.CompareAndSwapInt32(&self.isOpen, 0, 1) {
// log.Info("Segment|Open|BEGIN|%s|%s", self.path, self.name)
var rf *os.File
var wf *os.File
_, err := os.Stat(self.path)
//file exist
if os.IsNotExist(err) {
_, err := os.Create(self.path)
if nil != err {
log.ErrorLog("kite_store", "Segment|Create|FAIL|%s|%s", err, self.path)
return err
}
}
//file not exist create file
wf, err = os.OpenFile(self.path, os.O_RDWR|os.O_APPEND, os.ModePerm)
if nil != err {
log.ErrorLog("kite_store", "Segment|Open|FAIL|%s|%s", err, self.name)
return err
}
rf, err = os.OpenFile(self.path, os.O_RDWR, os.ModePerm)
if nil != err {
log.ErrorLog("kite_store", "Segment|Open|FAIL|%s|%s", err, self.name)
return err
}
self.rf = rf
self.wf = wf
//buffer
self.br = bufio.NewReader(rf)
//load
self.loadCheck()
// //seek
// self.wf.Seek(self.offset, 0)
self.bw = bufio.NewWriter(wf)
//op segment log
self.slog.Open()
//recover segment
self.recover(do)
total, n, d, e := self.stat()
log.InfoLog("kite_store", "Segment|Open|SUCC|%s|total:%d,n:%d,d:%d,e:%d", self.name, total, n, d, e)
return nil
}
return nil
}
//traverse oplog
func (self *SegmentLog) Replay(do func(l *oplog)) {
self.Open()
offset := int64(0)
tmp := make([]byte, 1024)
//seek to head
self.rf.Seek(0, 0)
self.br.Reset(self.rf)
for {
var length int32
err := binary.Read(self.br, binary.BigEndian, &length)
if nil != err {
if err == io.EOF {
self.br.Reset(self.rf)
break
}
log.WarnLog("kite_store", "SegmentLog|Replay|LEN|%s|Skip...", err)
continue
}
// log.Debug("SegmentLog|Replay|LEN|%d", length)
if int(length) > cap(tmp) {
grow := make([]byte, int(length)-cap(tmp))
tmp = append(tmp, grow...)
}
err = binary.Read(self.br, binary.BigEndian, tmp[:int(length)-4])
if nil != err {
self.br.Reset(self.rf)
log.ErrorLog("kite_store", "SegmentLog|Replay|Data|%s", err)
break
}
var ol oplog
r := bytes.NewReader(tmp[:int(length)-4])
deco := gob.NewDecoder(r)
err = deco.Decode(&ol)
if nil != err {
log.ErrorLog("kite_store", "SegmentLog|Replay|unmarshal|oplog|FAIL|%s", err)
continue
}
// log.Debug("SegmentLog|Replay|oplog|%s", ol)
do(&ol)
//line
offset += int64(length)
}
self.offset = int64(offset)
}
//订阅关系topic下的group发生变更
func (self *BindExchanger) NodeChange(path string, eventType ZkEvent, childNode []string) {
//如果是订阅关系变更则处理
if strings.HasPrefix(path, KITEQ_SUB) {
//获取topic
split := strings.Split(path, "/")
if len(split) < 4 {
if eventType == Created {
//不合法的订阅璐姐
log.ErrorLog("kite_bind", "BindExchanger|NodeChange|INVALID SUB PATH |%s|%t\n", path, childNode)
}
return
}
//获取topic
topic := split[3]
self.lock.Lock()
defer self.lock.Unlock()
//如果topic下无订阅分组节点，直接删除该topic
if len(childNode) <= 0 {
self.onBindChanged(topic, "", nil)
log.ErrorLog("kite_bind", "BindExchanger|NodeChange|无子节点|%s|%s\n", path, childNode)
return
}
// //对当前的topic的分组进行重新设置
switch eventType {
case Created, Child:
bm, err := self.zkmanager.GetBindAndWatch(topic)
if nil != err {
log.ErrorLog("kite_bind", "BindExchanger|NodeChange|获取订阅关系失败|%s|%s\n", path, childNode)
}
//如果topic下没有订阅关系分组则青琉璃
if len(bm) > 0 {
for groupId, bs := range bm {
self.onBindChanged(topic, groupId, bs)
}
} else {
//删除具体某个分组
self.onBindChanged(topic, "", nil)
}
}
} else {
// log.Warn("BindExchanger|NodeChange|非SUB节点变更|%s|%s\n", path, childNode)
}
}
//创建物理连接
func dial(hostport string) (*net.TCPConn, error) {
//连接
remoteAddr, err_r := net.ResolveTCPAddr("tcp4", hostport)
if nil != err_r {
log.ErrorLog("kite_client", "KiteClientManager|RECONNECT|RESOLVE ADDR |FAIL|remote:%s\n", err_r)
return nil, err_r
}
conn, err := net.DialTCP("tcp4", nil, remoteAddr)
if nil != err {
log.ErrorLog("kite_client", "KiteClientManager|RECONNECT|%s|FAIL|%s\n", hostport, err)
return nil, err
}
return conn, nil
}
//发布topic对应的server
func (self *ZKManager) PublishQServer(hostport string, topics []string) error {
for _, topic := range topics {
qpath := KITEQ_SERVER + "/" + topic
spath := KITEQ_SUB + "/" + topic
ppath := KITEQ_PUB + "/" + topic
//创建发送和订阅的根节点
self.traverseCreatePath(ppath, nil, zk.CreatePersistent)
// self.session.ExistsW(ppath)
self.traverseCreatePath(spath, nil, zk.CreatePersistent)
self.session.ExistsW(spath)
//先删除当前这个临时节点再注册 避免监听不到临时节点变更的事件
self.session.Delete(qpath+"/"+hostport, -1)
//注册当前节点
path, err := self.registePath(qpath, hostport, zk.CreateEphemeral, nil)
if nil != err {
log.ErrorLog("kite_bind", "ZKManager|PublishQServer|FAIL|%s|%s/%s\n", err, qpath, hostport)
return err
}
log.InfoLog("kite_bind", "ZKManager|PublishQServer|SUCC|%s\n", path)
}
//注册当前的kiteqserver
self.session.Delete(KITEQ_ALIVE_SERVERS+"/"+hostport, -1)
self.registePath(KITEQ_ALIVE_SERVERS, hostport, zk.CreateEphemeral, nil)
self.registePath(KITEQ_ALL_SERVERS, hostport, zk.CreatePersistent, nil)
return nil
}
func (self *DeliverResultHandler) checkRedelivery(fevent *deliverResultEvent) bool {
//如果不为fly消息那么需要存储投递结果
if !fevent.fly && fevent.deliverCount > 3 {
//存储投递结果
self.saveDeliverResult(fevent.messageId, fevent.deliverCount,
fevent.succGroups, fevent.deliveryFailGroups)
}
//检查当前消息的ttl和有效期是否达到最大的，如果达到最大则不允许再次投递
if fevent.expiredTime <= time.Now().Unix() || (fevent.deliverLimit <= fevent.deliverCount &&
fevent.deliverLimit > 0) {
//只是记录一下本次发送记录不发起重投策略
} else if fevent.deliverCount <= 3 {
//只有在消息前三次投递才会失败立即重投
fevent.deliverGroups = fevent.deliveryFailGroups
fevent.packet.Reset()
// log.Info("DeliverResultHandler|checkRedelivery|%s\n", fevent.deliverCount, fevent.deliverEvent)
return true
} else {
//如果投递次数大于3次并且失败了，那么需要持久化一下然后只能等待后续的recover重投了
//log deliver fail
log.ErrorLog("kite_deliver", "messageId:%s|Topic:%s|MessageType:%s|DeliverCount:%d|SUCCGROUPS:%s|FAILGROUPS:%s|",
fevent.deliverEvent.messageId, fevent.deliverEvent.topic, fevent.deliverEvent.messageType,
fevent.deliverCount, fevent.deliverEvent.succGroups, fevent.deliveryFailGroups)
}
return false
}
func (self *MessageStore) recoverSnapshot() {
//current segmentid
if len(self.segments) > 0 {
//replay log
for i, s := range self.segments {
err := s.Open(self.replay)
if nil != err {
log.ErrorLog("kite_store", "MessageStore|recoverSnapshot|Fail|%s", err, s.slog.path)
panic(err)
}
//last segments
if i == len(self.segments)-1 {
if nil != err {
panic("MessageStore|Load Last Segment|FAIL|" + err.Error())
}
//set snapshost status
if len(s.chunks) > 0 {
self.chunkId = s.chunks[len(s.chunks)-1].id
}
}
log.DebugLog("kite_store", "MessageStore|recoverSnapshot|%s", s.name)
}
}
}
func (self *KiteQServer) Start() {
self.remotingServer = server.NewRemotionServer(self.kc.server, self.kc.rc,
func(rclient *client.RemotingClient, p *packet.Packet) {
event := pipe.NewPacketEvent(rclient, p)
err := self.pipeline.FireWork(event)
if nil != err {
log.ErrorLog("kite_server", "RemotingServer|onPacketRecieve|FAIL|%s|%t", err, packet.MarshalPacket(p))
} else {
// log.Debug("RemotingServer|onPacketRecieve|SUCC|%s|%t\n", rclient.RemoteAddr(), packet)
}
})
err := self.remotingServer.ListenAndServer()
if nil != err {
log.Crashf("KiteQServer|RemotionServer|START|FAIL|%s|%s\n", err, self.kc.server)
} else {
log.InfoLog("kite_server", "KiteQServer|RemotionServer|START|SUCC|%s\n", self.kc.server)
}
//推送可发送的topic列表并且获取了对应topic下的订阅关系
succ := self.exchanger.PushQServer(self.kc.server, self.kc.topics)
if !succ {
log.Crashf("KiteQServer|PushQServer|FAIL|%s|%s\n", err, self.kc.topics)
} else {
log.InfoLog("kite_server", "KiteQServer|PushQServer|SUCC|%s\n", self.kc.topics)
}
//开启流量统计
self.startFlow()
//开启recover
self.recoverManager.Start()
}
func (self *StmtPool) enhancedPool(size int) error {
//初始化一下最小的Poolsize,让入到idlepool中
for i := 0; i < size; i++ {
j := 0
var err error
var stmt *sql.Stmt
for ; j < 3; j++ {
err, stmt = self.dialFunc()
if nil != err {
log.ErrorLog("kite_store", "POOL_FACTORY|CREATE STMT|INIT|FAIL|%s\n", err)
} else {
break
}
}
if j >= 3 {
return errors.New("POOL_FACTORY|CREATE STMT|INIT|FAIL|%s" + err.Error())
}
idlestmt := &IdleStmt{stmt: stmt, expiredTime: (time.Now().Add(self.idletime))}
self.idlePool.PushFront(idlestmt)
self.numActive++
}
return nil
}
//apend data
func (self *SegmentLog) Append(ol *oplog) error {
//if closed
if self.isOpen == 0 {
return errors.New(fmt.Sprintf("SegmentLog Is Closed!|%s", self.path))
}
buff := ol.marshal()
tmp := buff
for {
l, err := self.bw.Write(tmp)
if nil != err && err != io.ErrShortWrite {
log.ErrorLog("kite_store", "SegmentLog|Append|FAIL|%s|%d/%d", err, l, len(tmp))
return err
} else if nil == err {
break
} else {
self.bw.Reset(self.wf)
}
tmp = tmp[l:]
}
self.bw.Flush()
//line
atomic.AddInt64(&self.offset, int64(len(buff)))
return nil
}
func (self *Segment) loadChunk(c *Chunk) {
if c.length-CHUNK_HEADER <= 0 {
log.ErrorLog("kite_store", "Segment|LoadChunk|INVALID HEADER|%s|%d|%d", self.name, c.id, c.length)
return
}
data := make([]byte, c.length-CHUNK_HEADER)
//seek chunk
self.rf.Seek(c.offset+CHUNK_HEADER, 0)
self.br.Reset(self.rf)
dl, err := io.ReadFull(self.br, data)
if nil != err || dl != cap(data) {
log.ErrorLog("kite_store", "Segment|LoadChunk|Read Data|FAIL|%s|%s|%d|%d/%d", err, self.name, c.id, c.length, dl)
return
}
c.data = data
}
//apend data
func (self *Segment) Append(chunks []*Chunk) error {
//if closed
if self.isOpen == 0 {
return errors.New(fmt.Sprintf("Segment Is Closed!|%s", self.name))
}
length := int64(0)
for _, c := range chunks {
c.sid = self.sid
c.offset = self.offset + length
tmp := c.marshal()
for {
l, err := self.bw.Write(tmp)
length += int64(l)
if nil != err && err != io.ErrShortWrite {
log.ErrorLog("kite_store", "Segment|Append|FAIL|%s|%d/%d", err, l, len(tmp))
return err
} else if nil == err {
break
} else {
self.bw.Reset(self.wf)
log.ErrorLog("kite_store", "Segment|Append|FAIL|%s", err)
}
tmp = tmp[l:]
}
}
//flush
self.bw.Flush()
// log.DebugLog("Segment|Append|SUCC|%d/%d", l, len(buff))
//tmp cache chunk
if nil == self.chunks {
self.chunks = make([]*Chunk, 0, 1000)
}
self.chunks = append(self.chunks, chunks...)
//sort
// sort.Sort(self.chunks)
//move offset
self.offset += int64(length)
self.byteSize += int32(length)
return nil
}
//重放当前data的操作日志还原消息状态
func (self *KiteFileStore) replay(ol *oplog) {
var body opBody
err := json.Unmarshal(ol.Body, &body)
if nil != err {
log.ErrorLog("kite_store", "KiteFileStore|replay|FAIL|%s|%s", err, ol.Body)
return
}
ob := &body
ob.Id = ol.ChunkId
l, link, tol := self.hash(ob.MessageId)
// log.Debug("KiteFileStore|replay|%s|%s", ob, ol.Op)
//如果是更新或者创建，则直接反序列化
if ol.Op == OP_U || ol.Op == OP_C {
l.Lock()
//直接覆盖
e, ok := tol[ob.MessageId]
if ok {
e.Value = ob
} else {
e = link.PushFront(ob)
tol[ob.MessageId] = e
}
link.MoveToFront(e)
l.Unlock()
} else if ol.Op == OP_D || ol.Op == OP_E {
//如果为删除操作直接删除已经保存的op_log
l.Lock()
e, ok := tol[ob.MessageId]
if ok {
delete(tol, ob.MessageId)
link.Remove(e)
}
l.Unlock()
} else {
log.ErrorLog("kite_store", "KiteFileStore|replay|INVALID|%s|%s", ob, ol.Op)
}
}
func (self *ApnsClient) sendMessage(msg *entry.Message) error {
var sendError error
//重发逻辑
for i := 0; i < 3; i++ {
err, conn := self.factory.Get()
if nil != err || nil == conn || !conn.IsAlive() {
log.ErrorLog("push_client", "APNSCLIENT|SEND MESSAGE|FAIL|GET CONN|FAIL|%s|%s", err, *msg)
sendError = errors.New("GET APNS CONNECTION FAIL")
continue
}
//将当前enchanced发送的数据写入到storage中
if nil != self.storage &&
msg.MsgType == entry.MESSAGE_TYPE_ENHANCED {
//正常发送的记录即可
self.storage.Insert(entry.UmarshalIdentifier(msg), msg)
// if rand.Intn(100) == 0 {
// log.Printf("APNSCLIENT|sendMessage|RECORD MESSAGE|%s\n", msg)
// }
} else {
//否则丢弃不开启重发........
}
//直接发送的没有返回值
sendError = conn.sendMessage(msg)
self.sendCounter.Incr(1)
if nil != sendError {
self.failCounter.Incr(1)
//连接有问题直接销毁
releaseErr := self.factory.ReleaseBroken(conn)
log.ErrorLog("push_client", "APNSCLIENT|SEND MESSAGE|FAIL|RELEASE BROKEN CONN|FAIL|%s|%s", sendError, releaseErr)
} else {
//发送成功归还连接
self.factory.Release(conn)
break
}
}
return sendError
}
func openDb(addr string, shardId int, idleConn, maxConn int) *sql.DB {
db, err := sql.Open("mysql", addr+"_"+strconv.Itoa(shardId))
if err != nil {
log.ErrorLog("kite_store", "NewKiteMysql|CONNECT FAIL|%s|%s\n", err, addr)
panic(err)
}
db.SetMaxIdleConns(idleConn)
db.SetMaxOpenConns(maxConn)
return db
}
//获取绑定对象的数据
func (self *ZKManager) getBindData(path string) ([]*Binding, error) {
bindData, _, _, err := self.session.GetW(path)
if nil != err {
log.ErrorLog("kite_bind", "ZKManager|getBindData|Binding|FAIL|%s|%s\n", err, path)
return nil, err
}
// log.Printf("ZKManager|getBindData|Binding|SUCC|%s|%s\n", path, string(bindData))
if nil == bindData || len(bindData) <= 0 {
return []*Binding{}, nil
} else {
binding, err := UmarshalBinds(bindData)
if nil != err {
log.ErrorLog("kite_bind", "ZKManager|getBindData|UmarshalBind|FAIL|%s|%s|%s\n", err, path, string(bindData))
}
return binding, err
}
}
//处理push
func (self *ApnsHttpServer) handlePush(out http.ResponseWriter, req *http.Request) {
resp := &response{}
resp.Status = RESP_STATUS_SUCC
if req.Method == "GET" {
//返回不支持的请求方式
resp.Status = RESP_STATUS_INVALID_PROTO
resp.Error = errors.New("Unsupport Get method Invoke!")
} else if req.Method == "POST" {
//pushType
pushType := req.PostFormValue("pt") //先默认采用Enhanced方式
//接卸对应的token和payload
token, payload := self.decodePayload(req, resp)
trace := req.PostFormValue("trace")
expiredSeconds := req.PostFormValue("expiredSeconds")
expiredTime := self.expiredTime
if len(expiredSeconds) > 0 {
t, err := strconv.ParseInt(expiredSeconds, 10, 32)
if nil == err {
expiredTime = uint32(t)
}
}
//----------------如果依然是成功状态则证明当前可以发送
if RESP_STATUS_SUCC == resp.Status {
func() {
defer func() {
if re := recover(); nil != re {
stack := re.(*errors.Error).ErrorStack()
log.ErrorLog("push_handler", "ApnsHttpServer|handlePush|SEND|FAIL|%s|%s|%s", stack, payload, trace)
resp.Status = RESP_STATUS_ERROR
resp.Error = errors.New(fmt.Sprintf("%s", re))
self.write(out, resp)
}
}()
self.innerSend(pushType, token, payload, resp, expiredTime)
self.write(out, resp)
log.DebugLog("push_handler", "ApnsHttpServer|handlePush|SUCC|%s|%s|%s", resp, payload, trace)
}()
} else {
log.WarnLog("push_handler", "ApnsHttpServer|handlePush|FAIL|%s|%s|%s", resp, payload, trace)
self.write(out, resp)
}
}
}