forked from TrueCloudLab/frostfs-node
108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
package control
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import (
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"bytes"
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"context"
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"crypto/sha256"
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"errors"
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"fmt"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/engine"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object_manager/placement"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/replicator"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
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objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
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oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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)
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func (s *Server) EvacuateShard(ctx context.Context, req *control.EvacuateShardRequest) (*control.EvacuateShardResponse, error) {
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err := s.isValidRequest(req)
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if err != nil {
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return nil, status.Error(codes.PermissionDenied, err.Error())
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}
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var prm engine.EvacuateShardPrm
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prm.WithShardIDList(s.getShardIDList(req.GetBody().GetShard_ID()))
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prm.WithIgnoreErrors(req.GetBody().GetIgnoreErrors())
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prm.WithFaultHandler(s.replicate)
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res, err := s.s.Evacuate(ctx, prm)
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if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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resp := &control.EvacuateShardResponse{
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Body: &control.EvacuateShardResponse_Body{
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Count: uint32(res.Evacuated()),
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},
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}
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err = SignMessage(s.key, resp)
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if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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return resp, nil
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}
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func (s *Server) replicate(ctx context.Context, addr oid.Address, obj *objectSDK.Object) error {
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cid, ok := obj.ContainerID()
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if !ok {
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// Return nil to prevent situations where a shard can't be evacuated
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// because of a single bad/corrupted object.
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return nil
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}
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nm, err := s.netMapSrc.GetNetMap(0)
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if err != nil {
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return err
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}
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c, err := s.cnrSrc.Get(cid)
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if err != nil {
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return err
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}
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binCnr := make([]byte, sha256.Size)
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cid.Encode(binCnr)
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ns, err := nm.ContainerNodes(c.Value.PlacementPolicy(), binCnr)
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if err != nil {
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return fmt.Errorf("can't build a list of container nodes")
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}
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nodes := placement.FlattenNodes(ns)
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bs := (*keys.PublicKey)(&s.key.PublicKey).Bytes()
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for i := 0; i < len(nodes); i++ {
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if bytes.Equal(nodes[i].PublicKey(), bs) {
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copy(nodes[i:], nodes[i+1:])
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nodes = nodes[:len(nodes)-1]
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}
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}
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var res replicatorResult
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task := replicator.Task{
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NumCopies: 1,
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Addr: addr,
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Obj: obj,
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Nodes: nodes,
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}
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s.replicator.HandleTask(ctx, task, &res)
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if res.count == 0 {
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return errors.New("object was not replicated")
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}
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return nil
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}
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type replicatorResult struct {
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count int
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}
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// SubmitSuccessfulReplication implements the replicator.TaskResult interface.
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func (r *replicatorResult) SubmitSuccessfulReplication(_ netmap.NodeInfo) {
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r.count++
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}
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