TrueCloudLab/frostfs-node
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[#1112] node: Implement Range\RangeHash requests for EC object

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Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
This commit is contained in:
Anton Nikiforov 2024-05-02 14:29:59 +03:00
parent a23d53b2d4
commit 00b2b77b26
7 changed files with 84 additions and 12 deletions
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4
go.mod
View file

@ -4,10 +4,10 @@ go 1.21
require (
code.gitea.io/sdk/gitea v0.17.1
git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240422151450-df9b65324a4c
git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240427200446-67c6f305b21f
git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.0
git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20231101111734-b3ad3335ff65
git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240424080726-20ab57bf7ec3
git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240507063414-99e02858af12
git.frostfs.info/TrueCloudLab/hrw v1.2.1
git.frostfs.info/TrueCloudLab/policy-engine v0.0.0-20240412130734-0e69e485115a
git.frostfs.info/TrueCloudLab/tzhash v1.8.0

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go.sum
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13
pkg/local_object_storage/engine/range.go
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@ -102,6 +102,9 @@ func (e *StorageEngine) getRange(ctx context.Context, prm RngPrm) (RngRes, error
if it.SplitInfo != nil {
return RngRes{}, logicerr.Wrap(objectSDK.NewSplitInfoError(it.SplitInfo))
}
if it.ECInfo != nil {
return RngRes{}, logicerr.Wrap(objectSDK.NewECInfoError(it.ECInfo))
}
if it.Object == nil {
// If any shard is in a degraded mode, we should assume that metabase could store
@ -147,6 +150,8 @@ type getRangeShardIterator struct {
Object *objectSDK.Object
SplitInfoError *objectSDK.SplitInfoError
SplitInfo *objectSDK.SplitInfo
ECInfoError *objectSDK.ECInfoError
ECInfo *objectSDK.ECInfo
OutError error
ShardWithMeta hashedShard
MetaError error
@ -188,6 +193,14 @@ func (i *getRangeShardIterator) tryGetWithMeta(ctx context.Context) {
// stop iterating over shards if SplitInfo structure is complete
return withLink && withLast
case errors.As(err, &i.ECInfoError):
if i.ECInfo == nil {
i.ECInfo = objectSDK.NewECInfo()
}
util.MergeECInfo(i.ECInfoError.ECInfo(), i.ECInfo)
// stop iterating over shards if ECInfo structure is complete
return len(i.ECInfo.Chunks) == int(i.ECInfo.Chunks[0].Total)
case
client.IsErrObjectAlreadyRemoved(err),
shard.IsErrOutOfRange(err):

62
pkg/services/object/get/assemblerec.go
View file

@ -8,6 +8,7 @@ import (
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/container"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/policy"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/erasurecode"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
@ -45,23 +46,64 @@ func newAssemblerEC(
// Assemble assembles erasure-coded object and writes it's content to ObjectWriter.
// It returns parent object.
func (a *assemblerec) Assemble(ctx context.Context, writer ObjectWriter, headOnly bool) (*objectSDK.Object, error) {
parts := a.retrieveParts(ctx, headOnly)
if headOnly {
return a.reconstructHeader(ctx, writer)
} else if a.rng != nil {
return a.reconstructRange(ctx, writer)
}
return a.reconstructObject(ctx, writer)
}
func (a *assemblerec) getConstructor() (*erasurecode.Constructor, error) {
cnt, err := a.cs.Get(a.addr.Container())
if err != nil {
return nil, err
}
c, err := erasurecode.NewConstructor(
policy.ECDataCount(cnt.Value.PlacementPolicy()),
policy.ECParityCount(cnt.Value.PlacementPolicy()),
)
dataCount := policy.ECDataCount(cnt.Value.PlacementPolicy())
parityCount := policy.ECParityCount(cnt.Value.PlacementPolicy())
return erasurecode.NewConstructor(dataCount, parityCount)
}
func (a *assemblerec) reconstructHeader(ctx context.Context, writer ObjectWriter) (*objectSDK.Object, error) {
parts := a.retrieveParts(ctx, true)
c, err := a.getConstructor()
if err != nil {
return nil, err
}
if headOnly {
obj, err := c.ReconstructHeader(parts)
if err == nil {
return obj, writer.WriteHeader(ctx, obj)
}
obj, err := c.ReconstructHeader(parts)
if err == nil {
return obj, writer.WriteHeader(ctx, obj)
}
return nil, err
}
func (a *assemblerec) reconstructRange(ctx context.Context, writer ObjectWriter) (*objectSDK.Object, error) {
parts := a.retrieveParts(ctx, false)
c, err := a.getConstructor()
if err != nil {
return nil, err
}
obj, err := c.Reconstruct(parts)
if err != nil {
return nil, err
}
from := a.rng.GetOffset()
to := from + a.rng.GetLength()
if pLen := uint64(len(obj.Payload())); to < from || pLen < from || pLen < to {
return nil, &apistatus.ObjectOutOfRange{}
}
err = writer.WriteChunk(ctx, obj.Payload()[from:to])
if err != nil {
return nil, err
}
return obj, err
}
func (a *assemblerec) reconstructObject(ctx context.Context, writer ObjectWriter) (*objectSDK.Object, error) {
parts := a.retrieveParts(ctx, false)
c, err := a.getConstructor()
if err != nil {
return nil, err
}
obj, err := c.Reconstruct(parts)

3
pkg/services/object/get/v2/get_range_forwarder.go
View file

@ -132,6 +132,9 @@ func (f *getRangeRequestForwarder) readStream(ctx context.Context, rangeStream *
case *objectV2.SplitInfo:
si := objectSDK.NewSplitInfoFromV2(v)
return objectSDK.NewSplitInfoError(si)
case *objectV2.ECInfo:
ei := objectSDK.NewECInfoFromV2(v)
return objectSDK.NewECInfoError(ei)
}
}
return nil

3
pkg/services/object/get/v2/service.go
View file

@ -104,10 +104,13 @@ func (s *Service) GetRange(req *objectV2.GetRangeRequest, stream objectSvc.GetOb
err = s.svc.GetRange(stream.Context(), *p)
var splitErr *objectSDK.SplitInfoError
var ecErr *objectSDK.ECInfoError
switch {
case errors.As(err, &splitErr):
return stream.Send(splitInfoRangeResponse(splitErr.SplitInfo()))
case errors.As(err, &ecErr):
return stream.Send(ecInfoRangeResponse(ecErr.ECInfo()))
default:
return err
}

11
pkg/services/object/get/v2/util.go
View file

@ -292,6 +292,17 @@ func splitInfoRangeResponse(info *objectSDK.SplitInfo) *objectV2.GetRangeRespons
return resp
}
func ecInfoRangeResponse(info *objectSDK.ECInfo) *objectV2.GetRangeResponse {
resp := new(objectV2.GetRangeResponse)
body := new(objectV2.GetRangeResponseBody)
resp.SetBody(body)
body.SetRangePart(info.ToV2())
return resp
}
func setSplitInfoHeadResponse(info *objectSDK.SplitInfo, resp *objectV2.HeadResponse) {
resp.GetBody().SetHeaderPart(info.ToV2())
}