func renewLeadership(l lease.Lease, ttl time.Duration) lease.Lease {
err := l.Renew(ttl)
if err != nil {
log.Errorf("Engine leadership lost, renewal failed: %v", err)
return nil
}
log.Debugf("Engine leadership renewed")
return l
}
func rpcRenewLeadership(lManager lease.Manager, l lease.Lease, ver int, ttl time.Duration) lease.Lease {
err := l.Renew(ttl)
if err != nil {
if eerr, ok := err.(*etcdErr.Error); ok && eerr.ErrorCode == etcdErr.EcodeKeyNotFound {
log.Errorf("Retry renew etcd operation that failed due to %v", err)
l, err = lManager.AcquireLease(engineLeaseName, l.MachineID(), ver, ttl)
if err != nil {
log.Errorf("Engine leadership re-acquisition failed: %v", err)
return nil
} else if l == nil {
log.Infof("Unable to re-acquire engine leadership")
return nil
}
log.Infof("Engine leadership re-acquired")
return l
} else {
log.Errorf("Engine leadership lost, renewal failed: %v", err)
return nil
}
}
log.Debugf("Engine leadership renewed")
return l
}