本文整理汇总了Golang中github.com/coreos/fleet/registry.Registry.UseEtcdRegistry方法的典型用法代码示例。如果您正苦于以下问题：Golang Registry.UseEtcdRegistry方法的具体用法？Golang Registry.UseEtcdRegistry怎么用？Golang Registry.UseEtcdRegistry使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/coreos/fleet/registry.Registry的用法示例。
在下文中一共展示了Registry.UseEtcdRegistry方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: rpcAcquireLeadership
func rpcAcquireLeadership(reg registry.Registry, lManager lease.Manager, machID string, ver int, ttl time.Duration) lease.Lease {
existing, err := lManager.GetLease(engineLeaseName)
if err != nil {
log.Errorf("Unable to determine current lease: %v", err)
return nil
}
var l lease.Lease
if (existing == nil && reg.UseEtcdRegistry()) || (existing == nil && !reg.IsRegistryReady()) {
l, err = lManager.AcquireLease(engineLeaseName, machID, ver, ttl)
if err != nil {
log.Errorf("Engine leadership acquisition failed: %v", err)
return nil
} else if l == nil {
log.Infof("Unable to acquire engine leadership")
return nil
}
log.Infof("Engine leadership acquired")
return l
}
if existing != nil && existing.Version() >= ver {
log.Debugf("Lease already held by Machine(%s) operating at acceptable version %d", existing.MachineID(), existing.Version())
return existing
}
// TODO(hector): Here we could add a possible SLA to determine when the leader
// is too busy. In such a case, we can trigger a new leader election
if (existing != nil && reg.UseEtcdRegistry()) || (existing != nil && !reg.IsRegistryReady()) {
rem := existing.TimeRemaining()
l, err = lManager.StealLease(engineLeaseName, machID, ver, ttl+rem, existing.Index())
if err != nil {
log.Errorf("Engine leadership steal failed: %v", err)
return nil
} else if l == nil {
log.Infof("Unable to steal engine leadership")
return nil
}
log.Infof("Stole engine leadership from Machine(%s)", existing.MachineID())
if rem > 0 {
log.Infof("Waiting %v for previous lease to expire before continuing reconciliation", rem)
<-time.After(rem)
}
return l
}
log.Infof("Engine leader is BUSY!")
return existing
}