258 lines
8.2 KiB
Go
258 lines
8.2 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package audit_test
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import (
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"go.uber.org/zap"
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"storj.io/storj/internal/memory"
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"storj.io/storj/internal/testcontext"
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"storj.io/storj/internal/testplanet"
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"storj.io/storj/internal/testrand"
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"storj.io/storj/pkg/audit"
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"storj.io/storj/pkg/encryption"
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"storj.io/storj/pkg/overlay"
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"storj.io/storj/pkg/paths"
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"storj.io/storj/pkg/storj"
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"storj.io/storj/satellite"
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)
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// TestDisqualificationTooManyFailedAudits does the following:
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// * Create a failed audit report for a storagenode
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// * Record the audit report several times and check that the node isn't
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// disqualified until the audit reputation reaches the cut-off value.
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func TestDisqualificationTooManyFailedAudits(t *testing.T) {
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var (
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auditDQCutOff = 0.4
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alpha0 float64 = 1
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beta0 float64
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)
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testplanet.Run(t, testplanet.Config{
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SatelliteCount: 1, StorageNodeCount: 1, Reconfigure: testplanet.Reconfigure{
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Satellite: func(log *zap.Logger, index int, config *satellite.Config) {
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config.Overlay.Node.AuditReputationAlpha0 = alpha0
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config.Overlay.Node.AuditReputationBeta0 = beta0
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config.Overlay.Node.AuditReputationLambda = 1
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config.Overlay.Node.AuditReputationWeight = 1
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config.Overlay.Node.AuditReputationDQ = auditDQCutOff
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},
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},
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}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
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err := planet.Satellites[0].Audit.Service.Close()
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require.NoError(t, err)
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var (
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sat = planet.Satellites[0]
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nodeID = planet.StorageNodes[0].ID()
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report = &audit.Report{
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Fails: storj.NodeIDList{nodeID},
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}
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)
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dossier, err := sat.Overlay.Service.Get(ctx, nodeID)
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require.NoError(t, err)
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require.Equal(t, alpha0, dossier.Reputation.AuditReputationAlpha)
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require.Equal(t, beta0, dossier.Reputation.AuditReputationBeta)
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prevReputation := calcReputation(dossier)
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// Report the audit failure until the node gets disqualified due to many
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// failed audits
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iterations := 1
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for ; ; iterations++ {
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_, err := sat.Audit.Service.Reporter.RecordAudits(ctx, report)
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require.NoError(t, err)
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dossier, err := sat.Overlay.Service.Get(ctx, nodeID)
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require.NoError(t, err)
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reputation := calcReputation(dossier)
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require.Truef(t, prevReputation >= reputation,
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"(%d) expected reputation to remain or decrease (previous >= current): %f >= %f",
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iterations, prevReputation, reputation,
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)
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if reputation <= auditDQCutOff || reputation == prevReputation {
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require.NotNilf(t, dossier.Disqualified,
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"Disqualified (%d) - cut-off: %f, prev. reputation: %f, current reputation: %f",
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iterations, auditDQCutOff, prevReputation, reputation,
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)
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require.True(t, time.Now().Sub(*dossier.Disqualified) >= 0,
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"Disqualified should be in the past",
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)
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break
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}
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require.Nil(t, dossier.Disqualified, "Disqualified")
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prevReputation = reputation
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}
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require.True(t, iterations > 1, "the number of iterations must be at least 2")
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})
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}
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func calcReputation(dossier *overlay.NodeDossier) float64 {
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var (
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alpha = dossier.Reputation.AuditReputationAlpha
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beta = dossier.Reputation.AuditReputationBeta
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)
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return alpha / (alpha + beta)
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}
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func TestDisqualifiedNodesGetNoDownload(t *testing.T) {
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// Uploads random data.
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// Mark a node as disqualified.
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// Check we don't get it when we require order limit.
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testplanet.Run(t, testplanet.Config{
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SatelliteCount: 1, StorageNodeCount: 4, UplinkCount: 1,
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}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
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satellite := planet.Satellites[0]
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upl := planet.Uplinks[0]
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err := satellite.Audit.Service.Close()
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require.NoError(t, err)
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testData := testrand.Bytes(8 * memory.KiB)
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err = upl.Upload(ctx, planet.Satellites[0], "testbucket", "test/path", testData)
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require.NoError(t, err)
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projects, err := satellite.DB.Console().Projects().GetAll(ctx)
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require.NoError(t, err)
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require.Len(t, projects, 1)
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bucketID := []byte(storj.JoinPaths(projects[0].ID.String(), "testbucket"))
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encParameters := upl.GetConfig(satellite).GetEncryptionParameters()
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cipherSuite := encParameters.CipherSuite
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store := encryption.NewStore()
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store.SetDefaultKey(new(storj.Key))
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encryptedPath, err := encryption.EncryptPath("testbucket", paths.NewUnencrypted("test/path"), cipherSuite, store)
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require.NoError(t, err)
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lastSegPath := storj.JoinPaths(projects[0].ID.String(), "l", "testbucket", encryptedPath.Raw())
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pointer, err := satellite.Metainfo.Service.Get(ctx, lastSegPath)
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require.NoError(t, err)
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disqualifiedNode := pointer.GetRemote().GetRemotePieces()[0].NodeId
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disqualifyNode(t, ctx, satellite, disqualifiedNode)
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limits, _, err := satellite.Orders.Service.CreateGetOrderLimits(ctx, bucketID, pointer)
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require.NoError(t, err)
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assert.Len(t, limits, len(pointer.GetRemote().GetRemotePieces())-1)
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for _, orderLimit := range limits {
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assert.False(t, isDisqualified(t, ctx, satellite, orderLimit.Limit.StorageNodeId))
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assert.NotEqual(t, orderLimit.Limit.StorageNodeId, disqualifiedNode)
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}
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})
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}
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func TestDisqualifiedNodesGetNoUpload(t *testing.T) {
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// - mark a node as disqualified
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// - check that we have an error if we try to create a segment using all storage nodes
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testplanet.Run(t, testplanet.Config{
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SatelliteCount: 1, StorageNodeCount: 4, UplinkCount: 1,
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}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
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satellite := planet.Satellites[0]
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disqualifiedNode := planet.StorageNodes[0]
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err := satellite.Audit.Service.Close()
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require.NoError(t, err)
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disqualifyNode(t, ctx, satellite, disqualifiedNode.ID())
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request := overlay.FindStorageNodesRequest{
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MinimumRequiredNodes: 4,
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RequestedCount: 0,
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FreeBandwidth: 0,
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FreeDisk: 0,
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ExcludedNodes: nil,
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MinimumVersion: "", // semver or empty
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}
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nodes, err := satellite.Overlay.Service.FindStorageNodes(ctx, request)
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assert.True(t, overlay.ErrNotEnoughNodes.Has(err))
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assert.Len(t, nodes, 3)
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for _, node := range nodes {
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assert.False(t, isDisqualified(t, ctx, satellite, node.Id))
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assert.NotEqual(t, node.Id, disqualifiedNode)
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}
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})
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}
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func TestDisqualifiedNodeRemainsDisqualified(t *testing.T) {
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// - mark a node as disqualified
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// - give it high uptime and audit rate
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// - check that the node remains disqualified
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testplanet.Run(t, testplanet.Config{
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SatelliteCount: 1, StorageNodeCount: 4, UplinkCount: 1,
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}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
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satellite := planet.Satellites[0]
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err := satellite.Audit.Service.Close()
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require.NoError(t, err)
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disqualifiedNode := planet.StorageNodes[0]
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disqualifyNode(t, ctx, satellite, disqualifiedNode.ID())
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_, err = satellite.DB.OverlayCache().UpdateUptime(ctx, disqualifiedNode.ID(), true, 0, 1, 0)
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require.NoError(t, err)
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assert.True(t, isDisqualified(t, ctx, satellite, disqualifiedNode.ID()))
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_, err = satellite.DB.OverlayCache().UpdateStats(ctx, &overlay.UpdateRequest{
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NodeID: disqualifiedNode.ID(),
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IsUp: true,
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AuditSuccess: true,
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AuditLambda: 0, // forget about history
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AuditWeight: 1,
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AuditDQ: 0, // make sure new reputation scores are larger than the DQ thresholds
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UptimeLambda: 0, // forget about history
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UptimeWeight: 1,
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UptimeDQ: 0, // make sure new reputation scores are larger than the DQ thresholds
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})
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require.NoError(t, err)
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assert.True(t, isDisqualified(t, ctx, satellite, disqualifiedNode.ID()))
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})
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}
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func isDisqualified(t *testing.T, ctx *testcontext.Context, satellite *satellite.Peer, nodeID storj.NodeID) bool {
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node, err := satellite.Overlay.Service.Get(ctx, nodeID)
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require.NoError(t, err)
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return node.Disqualified != nil
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}
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func disqualifyNode(t *testing.T, ctx *testcontext.Context, satellite *satellite.Peer, nodeID storj.NodeID) {
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_, err := satellite.DB.OverlayCache().UpdateStats(ctx, &overlay.UpdateRequest{
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NodeID: nodeID,
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IsUp: true,
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AuditSuccess: false,
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AuditLambda: 0,
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AuditWeight: 1,
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AuditDQ: 0.5,
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UptimeLambda: 1,
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UptimeWeight: 1,
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UptimeDQ: 0.5,
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})
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require.NoError(t, err)
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assert.True(t, isDisqualified(t, ctx, satellite, nodeID))
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}
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