func (store *StatsStorage) fetchStats(zkServers map[string]string) {
for {
hosts := getZKHostsFromConfig()
ipPorts := []string{}
// keep order when splitting in hosts list and ip:port list
for _, h := range hosts {
ipPorts = append(ipPorts, zkServers[h])
}
servers, ok := zk.FLWSrvr(ipPorts, 3*time.Second)
recorded := map[string]zk.ServerStats{}
for idx, s := range servers {
if s.Error != nil {
log.Debug(s.Error)
}
recorded[hosts[idx]] = *s
}
store.lock.Lock()
store.stats = recorded
store.lock.Unlock()
if !ok {
log.Error("Failed to fetch stats on one or more servers")
}
time.Sleep(2 * time.Second)
}
}
func getServerStat(servers []string, timeout time.Duration) error {
serverStats, ok := zk.FLWSrvr(servers, timeout)
if !ok {
err := serverStats[0].Error
return err
}
return nil
}