add shell command to list all collections

weed/wdclient/masterclient.go

@@ -43,7 +43,7 @@ func (mc *MasterClient) WaitUntilConnected() {
 }
 
 func (mc *MasterClient) KeepConnectedToMaster() {
-	glog.V(0).Infof("%s bootstraps with masters %v", mc.name, mc.masters)
+	glog.V(1).Infof("%s bootstraps with masters %v", mc.name, mc.masters)
 	for {
 		mc.tryAllMasters()
 		time.Sleep(time.Second)
@@ -52,7 +52,7 @@ func (mc *MasterClient) KeepConnectedToMaster() {
 
 func (mc *MasterClient) tryAllMasters() {
 	for _, master := range mc.masters {
-		glog.V(0).Infof("Connecting to master %v", master)
+		glog.V(1).Infof("Connecting to master %v", master)
 		gprcErr := withMasterClient(context.Background(), master, mc.grpcDialOption, func(ctx context.Context, client master_pb.SeaweedClient) error {
 
 			stream, err := client.KeepConnected(ctx)
@@ -67,7 +67,7 @@ func (mc *MasterClient) tryAllMasters() {
 			}
 
 			if mc.currentMaster == "" {
-				glog.V(0).Infof("Connected to %v", master)
+				glog.V(1).Infof("Connected to %v", master)
 				mc.currentMaster = master
 			}
 

weed/wdclient/masterclient_collection.go

@@ -0,0 +1,23 @@
+package wdclient
+
+import (
+	"context"
+	"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
+)
+
+func (mc *MasterClient) CollectionDelete(ctx context.Context, collection string) error {
+	return withMasterClient(ctx, mc.currentMaster, mc.grpcDialOption, func(ctx context.Context, client master_pb.SeaweedClient) error {
+		_, err := client.CollectionDelete(ctx, &master_pb.CollectionDeleteRequest{
+			Name: collection,
+		})
+		return err
+	})
+}
+
+func (mc *MasterClient) CollectionList(ctx context.Context) (resp *master_pb.CollectionListResponse, err error) {
+	err = withMasterClient(ctx, mc.currentMaster, mc.grpcDialOption, func(ctx context.Context, client master_pb.SeaweedClient) error {
+		resp, err = client.CollectionList(ctx, &master_pb.CollectionListRequest{})
+		return err
+	})
+	return
+}