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storagenode.go
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/
storagenode.go
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package storagenode
import (
"context"
"github.com/golang/protobuf/ptypes/empty"
"github.com/kakao/varlog/internal/varlogctl"
"github.com/kakao/varlog/pkg/types"
"github.com/kakao/varlog/pkg/varlog"
"github.com/kakao/varlog/proto/admpb"
"github.com/kakao/varlog/proto/snpb"
)
func Describe(snid ...types.StorageNodeID) varlogctl.ExecuteFunc {
return func(ctx context.Context, adm varlog.Admin) (any, error) {
if len(snid) > 0 {
snm, err := adm.GetStorageNode(ctx, snid[0])
if err != nil {
return nil, err
}
ensureEmptyFields(snm)
return snm, nil
}
snms, err := adm.ListStorageNodes(ctx)
if err != nil {
return nil, err
}
for idx := range snms {
ensureEmptyFields(&snms[idx])
}
return snms, nil
}
}
func ensureEmptyFields(snm *admpb.StorageNodeMetadata) {
if len(snm.LogStreamReplicas) == 0 {
snm.LogStreamReplicas = []snpb.LogStreamReplicaMetadataDescriptor{}
}
}
func Add(addr string, snid types.StorageNodeID) varlogctl.ExecuteFunc {
return func(ctx context.Context, adm varlog.Admin) (any, error) {
return adm.AddStorageNode(ctx, snid, addr)
}
}
func Remove(addr string, snid types.StorageNodeID) varlogctl.ExecuteFunc {
return func(ctx context.Context, adm varlog.Admin) (any, error) {
err := adm.UnregisterStorageNode(ctx, snid)
return empty.Empty{}, err
}
}
// TODO: Unregister log stream replica