health check

synced-pool.go

@@ -17,6 +17,10 @@ type Quorum interface {
 	OwnerChanged(CartId, host string) error
 }
 
+type HealthHandler interface {
+	IsHealthy() bool
+}
+
 type RemoteHost struct {
 	*Client
 	Host        string
@@ -200,6 +204,15 @@ func NewSyncedPool(local *GrainLocalPool, hostname string, discovery Discovery)
 	return pool, nil
 }
 
+func (p *SyncedPool) IsHealthy() bool {
+	for _, r := range p.remotes {
+		if r.MissedPings > 3 {
+			return false
+		}
+	}
+	return true
+}
+
 func (p *SyncedPool) IsKnown(host string) bool {
 	for _, r := range p.remotes {
 		if r.Host == host {