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cmd/tools/segment-verify: adjust to SN Exists endpoint

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Change-Id: I409aeae29aa87996f2a6047f976d215a69e9d7f5
This commit is contained in:
Clement Sam 2022-12-21 15:14:53 +00:00
parent 9535444dcd
commit cda1d67465
6 changed files with 257 additions and 44 deletions
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2
cmd/tools/segment-verify/README.md
View File

@ -22,6 +22,8 @@ There are few parameters for controlling the verification itself:
--verify.per-piece-timeout duration duration to wait per piece download (default 800ms)
# Just the regular dialing timeout.
--verify.dial-timeout duration how long to wait for a successful dial (default 2s)
# This allows to specify the minimum node version that has the Exists endpoint.
--verify.version-with-exists string minimum storage node version with implemented Exists method (default "v1.69.2")
```
## Running the tool

38
cmd/tools/segment-verify/process.go
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@ -83,7 +83,7 @@ func (service *Service) VerifyBatches(ctx context.Context, batches []*Batch) err
for _, batch := range batches {
batch := batch
nodeURL, err := service.convertAliasToNodeURL(ctx, batch.Alias)
info, err := service.GetNodeInfo(ctx, batch.Alias)
if err != nil {
return Error.Wrap(err)
}
@ -91,7 +91,7 @@ func (service *Service) VerifyBatches(ctx context.Context, batches []*Batch) err
ignoreThrottle := service.priorityNodes.Contains(batch.Alias)
limiter.Go(ctx, func() {
verifiedCount, err := service.verifier.Verify(ctx, batch.Alias, nodeURL, batch.Items, ignoreThrottle)
verifiedCount, err := service.verifier.Verify(ctx, batch.Alias, info.NodeURL, info.Version, batch.Items, ignoreThrottle)
if err != nil {
if ErrNodeOffline.Has(err) {
mu.Lock()
@ -143,6 +143,9 @@ func (service *Service) convertAliasToNodeURL(ctx context.Context, alias metabas
return storj.NodeURL{}, Error.Wrap(err)
}
// TODO: single responsibility?
service.nodesVersionMap[alias] = info.Version.Version
nodeURL = storj.NodeURL{
ID: info.Id,
Address: info.Address.Address,
@ -152,3 +155,34 @@ func (service *Service) convertAliasToNodeURL(ctx context.Context, alias metabas
}
return nodeURL, nil
}
// NodeInfo contains node information.
type NodeInfo struct {
Version string
NodeURL storj.NodeURL
}
// GetNodeInfo retrieves node information, using a cache if needed.
func (service *Service) GetNodeInfo(ctx context.Context, alias metabase.NodeAlias) (NodeInfo, error) {
nodeURL, err := service.convertAliasToNodeURL(ctx, alias)
if err != nil {
return NodeInfo{}, Error.Wrap(err)
}
version, ok := service.nodesVersionMap[alias]
if !ok {
info, err := service.overlay.Get(ctx, nodeURL.ID)
if err != nil {
return NodeInfo{}, Error.Wrap(err)
}
service.nodesVersionMap[alias] = info.Version.Version
version = info.Version.Version
}
return NodeInfo{
NodeURL: nodeURL,
Version: version,
}, nil
}

4
cmd/tools/segment-verify/service.go
View File

@ -37,7 +37,7 @@ type Metabase interface {
// Verifier verifies a batch of segments.
type Verifier interface {
Verify(ctx context.Context, nodeAlias metabase.NodeAlias, target storj.NodeURL, segments []*Segment, ignoreThrottle bool) (verifiedCount int, err error)
Verify(ctx context.Context, nodeAlias metabase.NodeAlias, target storj.NodeURL, targetVersion string, segments []*Segment, ignoreThrottle bool) (verifiedCount int, err error)
}
// Overlay is used to fetch information about nodes.
@ -94,6 +94,7 @@ type Service struct {
onlineNodes NodeAliasSet
offlineCount map[metabase.NodeAlias]int
bucketList BucketList
nodesVersionMap map[metabase.NodeAlias]string
// this is a callback so that problematic pieces can be reported as they are found,
// rather than being kept in a list which might grow unreasonably large.
@ -133,6 +134,7 @@ func NewService(log *zap.Logger, metabaseDB Metabase, verifier Verifier, overlay
priorityNodes: NodeAliasSet{},
onlineNodes: NodeAliasSet{},
offlineCount: map[metabase.NodeAlias]int{},
nodesVersionMap: map[metabase.NodeAlias]string{},
reportPiece: problemPieces.Write,
}, nil

2
cmd/tools/segment-verify/service_test.go
View File

@ -471,7 +471,7 @@ type verifierMock struct {
processed map[storj.NodeID][]*segmentverify.Segment
}
func (v *verifierMock) Verify(ctx context.Context, alias metabase.NodeAlias, target storj.NodeURL, segments []*segmentverify.Segment, _ bool) (int, error) {
func (v *verifierMock) Verify(ctx context.Context, alias metabase.NodeAlias, target storj.NodeURL, targetVersion string, segments []*segmentverify.Segment, _ bool) (int, error) {
v.mu.Lock()
if v.processed == nil {
v.processed = map[storj.NodeID][]*segmentverify.Segment{}

120
cmd/tools/segment-verify/verify.go
View File

@ -8,10 +8,12 @@ import (
"io"
"time"
"github.com/blang/semver"
"github.com/zeebo/errs"
"go.uber.org/zap"
"storj.io/common/errs2"
"storj.io/common/pb"
"storj.io/common/rpc"
"storj.io/common/rpc/rpcpool"
"storj.io/common/rpc/rpcstatus"
@ -26,6 +28,8 @@ import (
// ErrNodeOffline is returned when it was not possible to contact a node or the node was not responding.
var ErrNodeOffline = errs.Class("node offline")
var errWrongNodeVersion = errs.Class("wrong node version")
// VerifierConfig contains configurations for operation.
type VerifierConfig struct {
DialTimeout time.Duration `help:"how long to wait for a successful dial" default:"2s"`
@ -33,6 +37,7 @@ type VerifierConfig struct {
OrderRetryThrottle time.Duration `help:"how much to wait before retrying order creation" default:"50ms"`
RequestThrottle time.Duration `help:"minimum interval for sending out each request" default:"150ms"`
VersionWithExists string `help:"minimum storage node version with implemented Exists method" default:"v1.69.2"`
}
// NodeVerifier implements segment verification by dialing nodes.
@ -45,6 +50,8 @@ type NodeVerifier struct {
orders *orders.Service
reportPiece pieceReporterFunc
versionWithExists semver.Version
}
var _ Verifier = (*NodeVerifier)(nil)
@ -62,16 +69,34 @@ func NewVerifier(log *zap.Logger, dialer rpc.Dialer, orders *orders.Service, con
IdleExpiration: 10 * time.Minute,
})
version, err := semver.ParseTolerant(config.VersionWithExists)
if err != nil {
log.Warn("invalid VersionWithExists", zap.String("VersionWithExists", config.VersionWithExists), zap.Error(err))
}
return &NodeVerifier{
log: log,
config: config,
dialer: configuredDialer,
orders: orders,
versionWithExists: version,
}
}
// Verify a collection of segments by attempting to download a byte from each segment from the target node.
func (service *NodeVerifier) Verify(ctx context.Context, alias metabase.NodeAlias, target storj.NodeURL, segments []*Segment, ignoreThrottle bool) (verifiedCount int, err error) {
func (service *NodeVerifier) Verify(ctx context.Context, alias metabase.NodeAlias, target storj.NodeURL, targetVersion string, segments []*Segment, ignoreThrottle bool) (verifiedCount int, err error) {
verifiedCount, err = service.VerifyWithExists(ctx, alias, target, targetVersion, segments)
// if Exists method is unimplemented or it is wrong node version fallback to download verification
if !errs2.IsRPC(err, rpcstatus.Unimplemented) && !errWrongNodeVersion.Has(err) {
return verifiedCount, err
}
if err != nil {
service.log.Debug("fallback to download method", zap.Error(err))
err = nil
}
service.log.Debug("verify segments by downloading pieces")
var client *piecestore.Client
defer func() {
if client != nil {
@ -212,6 +237,99 @@ func findPieceNum(segment *Segment, alias metabase.NodeAlias) uint16 {
panic("piece number not found")
}
// VerifyWithExists verifies that the segments exist on the specified node by calling the piecestore Exists
// endpoint if the node version supports it.
func (service *NodeVerifier) VerifyWithExists(ctx context.Context, alias metabase.NodeAlias, target storj.NodeURL, targetVersion string, segments []*Segment) (verifiedCount int, err error) {
if service.versionWithExists.String() == "" || targetVersion == "" {
return 0, errWrongNodeVersion.New("missing node version or no base version defined")
}
nodeVersion, err := semver.ParseTolerant(targetVersion)
if err != nil {
return 0, errWrongNodeVersion.Wrap(err)
}
if !nodeVersion.GE(service.versionWithExists) {
return 0, errWrongNodeVersion.New("too old version")
}
service.log.Debug("verify segments using Exists method", zap.Stringer("node-id", target.ID))
var conn *rpc.Conn
var client pb.DRPCPiecestoreClient
defer func() {
if conn != nil {
_ = conn.Close()
}
}()
const maxDials = 2
dialCount := 0
for client == nil {
dialCount++
if dialCount > maxDials {
return 0, ErrNodeOffline.New("too many redials")
}
conn, err := service.dialer.DialNodeURL(rpcpool.WithForceDial(ctx), target)
if err != nil {
service.log.Info("failed to dial node",
zap.Stringer("node-id", target.ID),
zap.Error(err))
} else {
client = pb.NewDRPCPiecestoreClient(conn)
}
}
err = service.verifySegmentsWithExists(ctx, client, alias, target, segments)
if err != nil {
// we could not do the verification, for a reason that implies we won't be able
// to do any more
return 0, Error.Wrap(err)
}
return len(segments), nil
}
// verifySegmentsWithExists calls the Exists endpoint on the specified target node for each segment.
func (service *NodeVerifier) verifySegmentsWithExists(ctx context.Context, client pb.DRPCPiecestoreClient, alias metabase.NodeAlias, target storj.NodeURL, segments []*Segment) (err error) {
pieceIds := make([]storj.PieceID, 0, len(segments))
for _, segment := range segments {
pieceNum := findPieceNum(segment, alias)
pieceId := segment.RootPieceID.Derive(target.ID, int32(pieceNum))
pieceIds = append(pieceIds, pieceId)
}
response, err := client.Exists(ctx, &pb.ExistsRequest{
PieceIds: pieceIds,
})
if err != nil {
return Error.Wrap(err)
}
for index := range pieceIds {
if missing(index, response.Missing) {
segments[index].Status.MarkNotFound()
} else {
segments[index].Status.MarkFound()
}
}
return nil
}
func missing(index int, missing []uint32) bool {
for _, m := range missing {
if uint32(index) == m {
return true
}
}
return false
}
// rateLimiter limits the rate of some type of event. It acts like a token
// bucket, allowing for bursting, as long as the _average_ interval between
// events over the lifetime of the rateLimiter is less than or equal to the

69
cmd/tools/segment-verify/verify_test.go
View File

@ -9,6 +9,8 @@ import (
"time"
"github.com/stretchr/testify/require"
"go.uber.org/zap"
"go.uber.org/zap/zaptest/observer"
"golang.org/x/sync/errgroup"
"storj.io/common/memory"
@ -30,14 +32,22 @@ func TestVerifier(t *testing.T) {
satellite := planet.Satellites[0]
snoCount := int32(len(planet.StorageNodes))
olderNodeVersion := "v1.68.1" // version without Exists endpoint
newerNodeVersion := "v1.69.2" // minimum version with Exists endpoint
config := segmentverify.VerifierConfig{
PerPieceTimeout: time.Second,
OrderRetryThrottle: 500 * time.Millisecond,
RequestThrottle: 500 * time.Millisecond,
VersionWithExists: "v1.69.2",
}
// create new observed logger
observedZapCore, observedLogs := observer.New(zap.DebugLevel)
observedLogger := zap.New(observedZapCore).Named("verifier")
service := segmentverify.NewVerifier(
planet.Log().Named("verifier"),
observedLogger,
satellite.Dialer,
satellite.Orders.Service,
config)
@ -69,17 +79,35 @@ func TestVerifier(t *testing.T) {
aliasMap, err := satellite.Metabase.DB.LatestNodesAliasMap(ctx)
require.NoError(t, err)
nodeWithExistsEndpoint := planet.StorageNodes[testrand.Intn(len(planet.StorageNodes)-1)]
var g errgroup.Group
for _, node := range planet.StorageNodes {
node := node
nodeVersion := olderNodeVersion
if node == nodeWithExistsEndpoint {
nodeVersion = newerNodeVersion
}
alias, ok := aliasMap.Alias(node.ID())
require.True(t, ok)
g.Go(func() error {
_, err := service.Verify(ctx, alias, node.NodeURL(), validSegments, true)
_, err := service.Verify(ctx, alias, node.NodeURL(), nodeVersion, validSegments, true)
return err
})
}
require.NoError(t, g.Wait())
require.NotZero(t, len(observedLogs.All()))
// check that segments were verified with download method
fallbackLogs := observedLogs.FilterMessage("fallback to download method").All()
require.Equal(t, 3, len(fallbackLogs))
require.Equal(t, zap.DebugLevel, fallbackLogs[0].Level)
// check that segments were verified with exists endpoint
existsLogs := observedLogs.FilterMessage("verify segments using Exists method").All()
require.Equal(t, 1, len(existsLogs))
require.Equal(t, zap.DebugLevel, existsLogs[0].Level)
for _, seg := range validSegments {
require.Equal(t, segmentverify.Status{Found: snoCount, NotFound: 0, Retry: 0}, seg.Status)
}
@ -108,31 +136,60 @@ func TestVerifier(t *testing.T) {
}
var count int
count, err = service.Verify(ctx, alias0, planet.StorageNodes[0].NodeURL(),
t.Run("segment not found using download method", func(t *testing.T) {
// for older node version
count, err = service.Verify(ctx, alias0, planet.StorageNodes[0].NodeURL(), olderNodeVersion,
[]*segmentverify.Segment{validSegment0, missingSegment, validSegment1}, true)
require.NoError(t, err)
require.Equal(t, 3, count)
require.Equal(t, segmentverify.Status{Found: 1}, validSegment0.Status)
require.Equal(t, segmentverify.Status{NotFound: 1}, missingSegment.Status)
require.Equal(t, segmentverify.Status{Found: 1}, validSegment1.Status)
})
// reset status
validSegment0.Status = segmentverify.Status{Retry: 1}
missingSegment.Status = segmentverify.Status{Retry: 1}
validSegment1.Status = segmentverify.Status{Retry: 1}
t.Run("segment not found using exists method", func(t *testing.T) {
count, err = service.Verify(ctx, alias0, planet.StorageNodes[0].NodeURL(), newerNodeVersion,
[]*segmentverify.Segment{validSegment0, missingSegment, validSegment1}, true)
require.NoError(t, err)
require.Equal(t, 3, count)
require.Equal(t, segmentverify.Status{Found: 1}, validSegment0.Status)
require.Equal(t, segmentverify.Status{NotFound: 1}, missingSegment.Status)
require.Equal(t, segmentverify.Status{Found: 1}, validSegment1.Status)
})
t.Run("test throttling", func(t *testing.T) {
// Test throttling
verifyStart := time.Now()
const throttleN = 5
count, err = service.Verify(ctx, alias0, planet.StorageNodes[0].NodeURL(), validSegments[:throttleN], false)
count, err = service.Verify(ctx, alias0, planet.StorageNodes[0].NodeURL(), olderNodeVersion, validSegments[:throttleN], false)
require.NoError(t, err)
verifyDuration := time.Since(verifyStart)
require.Equal(t, throttleN, count)
require.Greater(t, verifyDuration, config.RequestThrottle*(throttleN-1))
})
// TODO: test download timeout
// node offline
t.Run("Node offline", func(t *testing.T) {
err = planet.StopNodeAndUpdate(ctx, planet.StorageNodes[0])
require.NoError(t, err)
count, err = service.Verify(ctx, alias0, planet.StorageNodes[0].NodeURL(), validSegments, true)
// for older node version
count, err = service.Verify(ctx, alias0, planet.StorageNodes[0].NodeURL(), olderNodeVersion, validSegments, true)
require.Error(t, err)
require.Equal(t, 0, count)
require.True(t, segmentverify.ErrNodeOffline.Has(err))
// for node version with Exists endpoint
count, err = service.Verify(ctx, alias0, planet.StorageNodes[0].NodeURL(), newerNodeVersion, validSegments, true)
require.Error(t, err)
require.Equal(t, 0, count)
require.True(t, segmentverify.ErrNodeOffline.Has(err))
})
})
}