storj/satellite/audit/disqualification_test.go
Yingrong Zhao 6c7bf357cd satellite/{reputation,audit,overlay}: replace overlay with reputation
package in audit

This PR implements reputation store and replace overlay in audit service
to use such store for storing node's audit stats.

In order to keep the changeset smaller, most of the changes in this PR is for copying audit logic in overlay to
reputation package. In a following PR, the duplicating code will be
removed from overlay.

Change-Id: I16c12494a0970f44c422b26cf603c1dc489e5bc1
2021-07-28 13:10:48 -04:00

240 lines
7.5 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package audit_test
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/zap"
"storj.io/common/memory"
"storj.io/common/pb"
"storj.io/common/storj"
"storj.io/common/testcontext"
"storj.io/common/testrand"
"storj.io/storj/private/testplanet"
"storj.io/storj/satellite"
"storj.io/storj/satellite/audit"
"storj.io/storj/satellite/metabase"
"storj.io/storj/satellite/overlay"
"storj.io/storj/satellite/reputation"
)
// TestDisqualificationTooManyFailedAudits does the following:
// - Create a failed audit report for a storagenode
// - Record the audit report several times and check that the node isn't
// disqualified until the audit reputation reaches the cut-off value.
func TestDisqualificationTooManyFailedAudits(t *testing.T) {
var (
auditDQCutOff = 0.4
)
testplanet.Run(t, testplanet.Config{
SatelliteCount: 1, StorageNodeCount: 1, Reconfigure: testplanet.Reconfigure{
Satellite: func(log *zap.Logger, index int, config *satellite.Config) {
config.Reputation.AuditLambda = 1
config.Reputation.AuditWeight = 1
config.Reputation.AuditDQ = auditDQCutOff
},
},
}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
var (
satellitePeer = planet.Satellites[0]
nodeID = planet.StorageNodes[0].ID()
report = audit.Report{
Fails: storj.NodeIDList{nodeID},
}
)
satellitePeer.Audit.Worker.Loop.Pause()
dossier, err := satellitePeer.Overlay.Service.Get(ctx, nodeID)
require.NoError(t, err)
require.Nil(t, dossier.Disqualified)
_, err = satellitePeer.Audit.Reporter.RecordAudits(ctx, audit.Report{
Successes: storj.NodeIDList{nodeID},
})
require.NoError(t, err)
reputationInfo, err := satellitePeer.Reputation.Service.Get(ctx, nodeID)
require.NoError(t, err)
prevReputation := calcReputation(reputationInfo)
// Report the audit failure until the node gets disqualified due to many
// failed audits.
iterations := 1
for ; ; iterations++ {
_, err := satellitePeer.Audit.Reporter.RecordAudits(ctx, report)
require.NoError(t, err)
reputationInfo, err := satellitePeer.Reputation.Service.Get(ctx, nodeID)
require.NoError(t, err)
reputation := calcReputation(reputationInfo)
require.Truef(t, prevReputation >= reputation,
"(%d) expected reputation to remain or decrease (previous >= current): %f >= %f",
iterations, prevReputation, reputation,
)
if reputation <= auditDQCutOff || reputation == prevReputation {
require.NotNilf(t, reputationInfo.Disqualified,
"Disqualified (%d) - cut-off: %f, prev. reputation: %f, current reputation: %f",
iterations, auditDQCutOff, prevReputation, reputation,
)
require.True(t, time.Since(*reputationInfo.Disqualified) >= 0,
"Disqualified should be in the past",
)
break
}
require.Nil(t, reputationInfo.Disqualified, "Disqualified")
prevReputation = reputation
}
require.True(t, iterations > 1, "the number of iterations must be at least 2")
})
}
func calcReputation(dossier *reputation.Info) float64 {
var (
alpha = dossier.AuditReputationAlpha
beta = dossier.AuditReputationBeta
)
return alpha / (alpha + beta)
}
func TestDisqualifiedNodesGetNoDownload(t *testing.T) {
// Uploads random data.
// Mark a node as disqualified.
// Check we don't get it when we require order limit.
testplanet.Run(t, testplanet.Config{
SatelliteCount: 1, StorageNodeCount: 4, UplinkCount: 1,
}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
satellitePeer := planet.Satellites[0]
uplinkPeer := planet.Uplinks[0]
satellitePeer.Audit.Worker.Loop.Pause()
testData := testrand.Bytes(8 * memory.KiB)
err := uplinkPeer.Upload(ctx, satellitePeer, "testbucket", "test/path", testData)
require.NoError(t, err)
bucket := metabase.BucketLocation{ProjectID: uplinkPeer.Projects[0].ID, BucketName: "testbucket"}
segments, err := satellitePeer.Metainfo.Metabase.TestingAllSegments(ctx)
require.NoError(t, err)
require.Equal(t, 1, len(segments))
segment := segments[0]
disqualifiedNode := segment.Pieces[0].StorageNode
err = satellitePeer.DB.OverlayCache().DisqualifyNode(ctx, disqualifiedNode)
require.NoError(t, err)
limits, _, err := satellitePeer.Orders.Service.CreateGetOrderLimits(ctx, bucket, segment, 0)
require.NoError(t, err)
assert.Len(t, limits, len(segment.Pieces)-1)
for _, orderLimit := range limits {
assert.False(t, isDisqualified(t, ctx, satellitePeer, orderLimit.Limit.StorageNodeId))
assert.NotEqual(t, orderLimit.Limit.StorageNodeId, disqualifiedNode)
}
})
}
func TestDisqualifiedNodesGetNoUpload(t *testing.T) {
// - mark a node as disqualified
// - check that we have an error if we try to create a segment using all storage nodes
testplanet.Run(t, testplanet.Config{
SatelliteCount: 1, StorageNodeCount: 4, UplinkCount: 1,
}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
satellitePeer := planet.Satellites[0]
disqualifiedNode := planet.StorageNodes[0]
satellitePeer.Audit.Worker.Loop.Pause()
err := satellitePeer.DB.OverlayCache().DisqualifyNode(ctx, disqualifiedNode.ID())
require.NoError(t, err)
request := overlay.FindStorageNodesRequest{
RequestedCount: 4,
ExcludedIDs: nil,
MinimumVersion: "", // semver or empty
}
nodes, err := satellitePeer.Overlay.Service.FindStorageNodesForUpload(ctx, request)
assert.True(t, overlay.ErrNotEnoughNodes.Has(err))
assert.Len(t, nodes, 3)
for _, node := range nodes {
assert.False(t, isDisqualified(t, ctx, satellitePeer, node.ID))
assert.NotEqual(t, node.ID, disqualifiedNode)
}
})
}
func TestDisqualifiedNodeRemainsDisqualified(t *testing.T) {
// - mark a node as disqualified
// - give it high audit rate
// - check that the node remains disqualified
testplanet.Run(t, testplanet.Config{
SatelliteCount: 1, StorageNodeCount: 4, UplinkCount: 1,
}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
satellitePeer := planet.Satellites[0]
satellitePeer.Audit.Worker.Loop.Pause()
disqualifiedNode := planet.StorageNodes[0]
err := satellitePeer.DB.OverlayCache().DisqualifyNode(ctx, disqualifiedNode.ID())
require.NoError(t, err)
info := overlay.NodeCheckInInfo{
NodeID: disqualifiedNode.ID(),
IsUp: true,
Address: &pb.NodeAddress{
Address: "1.2.3.4",
},
Version: &pb.NodeVersion{
Version: "v0.0.0",
CommitHash: "",
Timestamp: time.Time{},
Release: false,
},
}
err = satellitePeer.DB.OverlayCache().UpdateCheckIn(ctx, info, time.Now(), overlay.NodeSelectionConfig{})
require.NoError(t, err)
assert.True(t, isDisqualified(t, ctx, satellitePeer, disqualifiedNode.ID()))
_, err = satellitePeer.Overlay.Service.BatchUpdateStats(ctx, []*overlay.UpdateRequest{{
NodeID: disqualifiedNode.ID(),
AuditOutcome: overlay.AuditSuccess,
AuditLambda: 0, // forget about history
AuditWeight: 1,
AuditDQ: 0, // make sure new reputation scores are larger than the DQ thresholds
SuspensionGracePeriod: time.Hour,
SuspensionDQEnabled: true,
}})
require.NoError(t, err)
assert.True(t, isDisqualified(t, ctx, satellitePeer, disqualifiedNode.ID()))
})
}
func isDisqualified(t *testing.T, ctx *testcontext.Context, satellite *testplanet.Satellite, nodeID storj.NodeID) bool {
node, err := satellite.Overlay.Service.Get(ctx, nodeID)
require.NoError(t, err)
return node.Disqualified != nil
}