func (m *master) runReplication() {
m.wg.Add(1)
defer m.wg.Done()
for {
select {
case <-m.quit:
return
default:
if err := m.connect(); err != nil {
log.Error("connect master %s error %s, try 2s later", m.info.Addr, err.Error())
time.Sleep(2 * time.Second)
continue
}
}
if m.info.LogFileIndex == 0 {
//try a fullsync
if err := m.fullSync(); err != nil {
log.Warn("full sync error %s", err.Error())
return
}
if m.info.LogFileIndex == 0 {
//master not support binlog, we cannot sync, so stop replication
m.stopReplication()
return
}
}
for {
for {
lastIndex := m.info.LogFileIndex
lastPos := m.info.LogPos
if err := m.sync(); err != nil {
log.Warn("sync error %s", err.Error())
return
}
if m.info.LogFileIndex == lastIndex && m.info.LogPos == lastPos {
//sync no data, wait 1s and retry
break
}
}
select {
case <-m.quit:
return
case <-time.After(1 * time.Second):
break
}
}
}
return
}
func (m *master) runReplication() {
m.wg.Add(1)
defer m.wg.Done()
for {
select {
case <-m.quit:
return
default:
if err := m.connect(); err != nil {
log.Error("connect master %s error %s, try 2s later", m.info.Addr, err.Error())
time.Sleep(2 * time.Second)
continue
}
}
if m.info.LogFileIndex == 0 {
//try a fullsync
if err := m.fullSync(); err != nil {
if m.conn != nil {
//if conn == nil, other close the replication, not error
log.Warn("full sync error %s", err.Error())
}
return
}
if m.info.LogFileIndex == 0 {
//master not support binlog, we cannot sync, so stop replication
m.stopReplication()
return
}
}
for {
if err := m.sync(); err != nil {
if m.conn != nil {
//if conn == nil, other close the replication, not error
log.Warn("sync error %s", err.Error())
}
return
}
select {
case <-m.quit:
return
default:
break
}
}
}
return
}
func (c *Conn) handleShowProxy(sql string, stmt *sqlparser.Show) (*Resultset, error) {
var err error
var r *Resultset
switch strings.ToLower(stmt.Key) {
case "config":
r, err = c.handleShowProxyConfig()
case "status":
r, err = c.handleShowProxyStatus(sql, stmt)
default:
err = fmt.Errorf("Unsupport show proxy [%v] yet, just support [config|status] now.", stmt.Key)
log.Warn(err.Error())
return nil, err
}
return r, err
}