[#947] cli: Allow to specify evacuation scope

It may be required to evacuate only objects or only tree or all, so
now it spossible to specify.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

cmd/frostfs-cli/modules/control/evacuation.go

@@ -19,6 +19,11 @@ import (
 const (
 	awaitFlag      = "await"
 	noProgressFlag = "no-progress"
+	scopeFlag      = "scope"
+
+	scopeAll     = "all"
+	scopeObjects = "objects"
+	scopeTrees   = "trees"
 )
 
 var evacuationShardCmd = &cobra.Command{
@@ -57,6 +62,7 @@ func startEvacuateShard(cmd *cobra.Command, _ []string) {
 		Body: &control.StartShardEvacuationRequest_Body{
 			Shard_ID:     getShardIDList(cmd),
 			IgnoreErrors: ignoreErrors,
+			Scope:        getEvacuationScope(cmd),
 		},
 	}
 
@@ -82,6 +88,22 @@ func startEvacuateShard(cmd *cobra.Command, _ []string) {
 	}
 }
 
+func getEvacuationScope(cmd *cobra.Command) uint32 {
+	rawScope, err := cmd.Flags().GetString(scopeFlag)
+	commonCmd.ExitOnErr(cmd, "Invalid scope value: %w", err)
+	switch rawScope {
+	case scopeAll:
+		return uint32(control.StartShardEvacuationRequest_Body_OBJECTS) | uint32(control.StartShardEvacuationRequest_Body_TREES)
+	case scopeObjects:
+		return uint32(control.StartShardEvacuationRequest_Body_OBJECTS)
+	case scopeTrees:
+		return uint32(control.StartShardEvacuationRequest_Body_TREES)
+	default:
+		commonCmd.ExitOnErr(cmd, "Invalid scope value: %w", fmt.Errorf("unknown scope %s", rawScope))
+	}
+	return uint32(control.StartShardEvacuationRequest_Body_NONE)
+}
+
 func getEvacuateShardStatus(cmd *cobra.Command, _ []string) {
 	pk := key.Get(cmd)
 	req := &control.GetShardEvacuationStatusRequest{
@@ -309,6 +331,7 @@ func initControlStartEvacuationShardCmd() {
 	flags.StringSlice(shardIDFlag, nil, "List of shard IDs in base58 encoding")
 	flags.Bool(shardAllFlag, false, "Process all shards")
 	flags.Bool(ignoreErrorsFlag, true, "Skip invalid/unreadable objects")
+	flags.String(scopeFlag, scopeAll, fmt.Sprintf("Evacuation scope; possible values: %s, %s, %s", scopeTrees, scopeObjects, scopeAll))
 	flags.Bool(awaitFlag, false, "Block execution until evacuation is completed")
 	flags.Bool(noProgressFlag, false, fmt.Sprintf("Print progress if %s provided", awaitFlag))
 

pkg/local_object_storage/engine/evacuate.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"strings"
 	"sync/atomic"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
@@ -28,12 +29,40 @@ var (
 	evacuationOperationLogField = zap.String("operation", "evacuation")
 )
 
+// EvacuateScope is an evacuation scope. Keep in sync with pkg/services/control/service.proto.
+type EvacuateScope uint32
+
+var (
+	EvacuateScopeObjects EvacuateScope = 1
+	EvacuateScopeTrees   EvacuateScope = 2
+)
+
+func (s EvacuateScope) String() string {
+	var sb strings.Builder
+	first := true
+	if s&EvacuateScopeObjects == EvacuateScopeObjects {
+		if !first {
+			sb.WriteString(";")
+		}
+		sb.WriteString("objects")
+		first = false
+	}
+	if s&EvacuateScopeTrees == EvacuateScopeTrees {
+		if !first {
+			sb.WriteString(";")
+		}
+		sb.WriteString("trees")
+	}
+	return sb.String()
+}
+
 // EvacuateShardPrm represents parameters for the EvacuateShard operation.
 type EvacuateShardPrm struct {
 	ShardID      []*shard.ID
 	Handler      func(context.Context, oid.Address, *objectSDK.Object) error
 	IgnoreErrors bool
 	Async        bool
+	Scope        EvacuateScope
 }
 
 // EvacuateShardRes represents result of the EvacuateShard operation.
@@ -135,6 +164,7 @@ func (e *StorageEngine) Evacuate(ctx context.Context, prm EvacuateShardPrm) (*Ev
 			attribute.StringSlice("shardIDs", shardIDs),
 			attribute.Bool("async", prm.Async),
 			attribute.Bool("ignoreErrors", prm.IgnoreErrors),
+			attribute.Stringer("scope", prm.Scope),
 		))
 	defer span.End()
 

pkg/services/control/server/evacuate.go

@@ -29,6 +29,7 @@ func (s *Server) EvacuateShard(ctx context.Context, req *control.EvacuateShardRe
 		ShardID:      s.getShardIDList(req.GetBody().GetShard_ID()),
 		IgnoreErrors: req.GetBody().GetIgnoreErrors(),
 		Handler:      s.replicate,
+		Scope:        engine.EvacuateScopeObjects,
 	}
 
 	res, err := s.s.Evacuate(ctx, prm)

pkg/services/control/server/evacuate_async.go

@@ -17,11 +17,16 @@ func (s *Server) StartShardEvacuation(ctx context.Context, req *control.StartSha
 		return nil, status.Error(codes.PermissionDenied, err.Error())
 	}
 
+	if req.GetBody().GetScope() == uint32(control.StartShardEvacuationRequest_Body_NONE) {
+		return nil, status.Error(codes.InvalidArgument, "no evacuation scope")
+	}
+
 	prm := engine.EvacuateShardPrm{
 		ShardID:      s.getShardIDList(req.GetBody().GetShard_ID()),
 		IgnoreErrors: req.GetBody().GetIgnoreErrors(),
 		Handler:      s.replicate,
 		Async:        true,
+		Scope:        engine.EvacuateScope(req.GetBody().GetScope()),
 	}
 
 	_, err = s.s.Evacuate(ctx, prm)

pkg/services/control/service.proto

@@ -336,10 +336,18 @@ message DoctorResponse {
 message StartShardEvacuationRequest {
     // Request body structure.
     message Body {
+        enum Scope {
+            NONE = 0;
+            OBJECTS = 1;
+            TREES = 2;
+        }
+
         // IDs of the shards.
         repeated bytes shard_ID = 1;
         // Flag indicating whether object read errors should be ignored.
         bool ignore_errors = 2;
+        // Evacuation scope.
+        uint32 scope = 3;
     }
 
     Body body = 1;