554 lines
18 KiB
Go
554 lines
18 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package repair_test
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import (
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"context"
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"math"
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"testing"
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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/pb"
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"storj.io/storj/pkg/storj"
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"storj.io/storj/satellite"
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"storj.io/storj/satellite/overlay"
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"storj.io/storj/uplink"
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)
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// TestDataRepair does the following:
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// - Uploads test data
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// - Kills some nodes and disqualifies 1
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// - Triggers data repair, which repairs the data from the remaining nodes to
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// the numbers of nodes determined by the upload repair max threshold
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// - Shuts down several nodes, but keeping up a number equal to the minim
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// threshold
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// - Downloads the data from those left nodes and check that it's the same than
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// the uploaded one
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func TestDataRepair(t *testing.T) {
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var repairMaxExcessRateOptimalThreshold float64
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testplanet.Run(t, testplanet.Config{
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SatelliteCount: 1,
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StorageNodeCount: 14,
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UplinkCount: 1,
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Reconfigure: testplanet.Reconfigure{
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Satellite: func(log *zap.Logger, index int, config *satellite.Config) {
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config.Overlay.Node.OnlineWindow = 0
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repairMaxExcessRateOptimalThreshold = config.Repairer.MaxExcessRateOptimalThreshold
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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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// first, upload some remote data
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uplinkPeer := planet.Uplinks[0]
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satellitePeer := planet.Satellites[0]
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// stop discovery service so that we do not get a race condition when we delete nodes from overlay
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satellitePeer.Discovery.Service.Discovery.Stop()
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satellitePeer.Discovery.Service.Refresh.Stop()
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// stop audit to prevent possible interactions i.e. repair timeout problems
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satellitePeer.Audit.Service.Loop.Stop()
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satellitePeer.Repair.Checker.Loop.Pause()
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satellitePeer.Repair.Repairer.Loop.Pause()
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var (
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testData = testrand.Bytes(8 * memory.KiB)
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minThreshold = 3
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successThreshold = 7
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)
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err := uplinkPeer.UploadWithConfig(ctx, satellitePeer, &uplink.RSConfig{
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MinThreshold: minThreshold,
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RepairThreshold: 5,
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SuccessThreshold: successThreshold,
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MaxThreshold: 10,
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}, "testbucket", "test/path", testData)
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require.NoError(t, err)
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pointer, path := getRemoteSegment(t, ctx, satellitePeer)
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// calculate how many storagenodes to kill
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redundancy := pointer.GetRemote().GetRedundancy()
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minReq := redundancy.GetMinReq()
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remotePieces := pointer.GetRemote().GetRemotePieces()
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numPieces := len(remotePieces)
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// disqualify one storage node
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toDisqualify := 1
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toKill := numPieces - toDisqualify - int(minReq+1)
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require.True(t, toKill >= 1)
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maxNumRepairedPieces := int(
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math.Ceil(
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float64(successThreshold) * (1 + repairMaxExcessRateOptimalThreshold),
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),
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)
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numStorageNodes := len(planet.StorageNodes)
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// Ensure that there are enough storage nodes to upload repaired segments
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require.Falsef(t,
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(numStorageNodes-toKill-toDisqualify) < maxNumRepairedPieces,
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"there is not enough available nodes for repairing: need= %d, have= %d",
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maxNumRepairedPieces, (numStorageNodes - toKill - toDisqualify),
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)
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// kill nodes and track lost pieces
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nodesToKill := make(map[storj.NodeID]bool)
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nodesToDisqualify := make(map[storj.NodeID]bool)
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nodesToKeepAlive := make(map[storj.NodeID]bool)
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var numDisqualified int
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for i, piece := range remotePieces {
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if i >= toKill {
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if numDisqualified < toDisqualify {
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nodesToDisqualify[piece.NodeId] = true
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numDisqualified++
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}
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nodesToKeepAlive[piece.NodeId] = true
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continue
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}
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nodesToKill[piece.NodeId] = true
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}
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for _, node := range planet.StorageNodes {
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if nodesToDisqualify[node.ID()] {
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disqualifyNode(t, ctx, satellitePeer, node.ID())
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continue
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}
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if nodesToKill[node.ID()] {
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err = planet.StopPeer(node)
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require.NoError(t, err)
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_, err = satellitePeer.Overlay.Service.UpdateUptime(ctx, node.ID(), false)
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require.NoError(t, err)
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}
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}
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satellitePeer.Repair.Checker.Loop.Restart()
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satellitePeer.Repair.Checker.Loop.TriggerWait()
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satellitePeer.Repair.Checker.Loop.Pause()
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satellitePeer.Repair.Repairer.Loop.Restart()
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satellitePeer.Repair.Repairer.Loop.TriggerWait()
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satellitePeer.Repair.Repairer.Loop.Pause()
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satellitePeer.Repair.Repairer.Limiter.Wait()
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// repaired segment should not contain any piece in the killed and DQ nodes
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metainfoService := satellitePeer.Metainfo.Service
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pointer, err = metainfoService.Get(ctx, path)
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require.NoError(t, err)
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nodesToKillForMinThreshold := len(remotePieces) - minThreshold
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remotePieces = pointer.GetRemote().GetRemotePieces()
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for _, piece := range remotePieces {
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require.NotContains(t, nodesToKill, piece.NodeId, "there shouldn't be pieces in killed nodes")
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require.NotContains(t, nodesToDisqualify, piece.NodeId, "there shouldn't be pieces in DQ nodes")
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// Kill the original nodes which were kept alive to ensure that we can
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// download from the new nodes that the repaired pieces have been uploaded
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if _, ok := nodesToKeepAlive[piece.NodeId]; ok && nodesToKillForMinThreshold > 0 {
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stopNodeByID(t, ctx, planet, piece.NodeId)
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nodesToKillForMinThreshold--
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}
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}
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// we should be able to download data without any of the original nodes
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newData, err := uplinkPeer.Download(ctx, satellitePeer, "testbucket", "test/path")
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require.NoError(t, err)
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require.Equal(t, newData, testData)
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})
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}
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// TestRemoveIrreparableSegmentFromQueue
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// - Upload tests data to 7 nodes
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// - Kill nodes so that repair threshold > online nodes > minimum threshold
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// - Call checker to add segment to the repair queue
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// - Kill nodes so that online nodes < minimum threshold
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// - Run the repairer
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// - Verify segment is no longer in the repair queue and segment should be the same
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func TestRemoveIrreparableSegmentFromQueue(t *testing.T) {
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testplanet.Run(t, testplanet.Config{
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SatelliteCount: 1,
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StorageNodeCount: 10,
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UplinkCount: 1,
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}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
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// first, upload some remote data
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uplinkPeer := planet.Uplinks[0]
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satellitePeer := planet.Satellites[0]
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// stop discovery service so that we do not get a race condition when we delete nodes from overlay
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satellitePeer.Discovery.Service.Discovery.Stop()
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satellitePeer.Discovery.Service.Refresh.Stop()
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// stop audit to prevent possible interactions i.e. repair timeout problems
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satellitePeer.Audit.Service.Loop.Stop()
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satellitePeer.Repair.Checker.Loop.Pause()
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satellitePeer.Repair.Repairer.Loop.Pause()
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testData := testrand.Bytes(8 * memory.KiB)
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err := uplinkPeer.UploadWithConfig(ctx, satellitePeer, &uplink.RSConfig{
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MinThreshold: 3,
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RepairThreshold: 5,
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SuccessThreshold: 7,
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MaxThreshold: 7,
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}, "testbucket", "test/path", testData)
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require.NoError(t, err)
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pointer, _ := getRemoteSegment(t, ctx, satellitePeer)
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// kill nodes and track lost pieces
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nodesToDQ := make(map[storj.NodeID]bool)
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// Kill 3 nodes so that pointer has 4 left (less than repair threshold)
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toKill := 3
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remotePieces := pointer.GetRemote().GetRemotePieces()
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for i, piece := range remotePieces {
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if i >= toKill {
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continue
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}
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nodesToDQ[piece.NodeId] = true
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}
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for nodeID := range nodesToDQ {
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disqualifyNode(t, ctx, satellitePeer, nodeID)
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}
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// trigger checker to add segment to repair queue
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satellitePeer.Repair.Checker.Loop.Restart()
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satellitePeer.Repair.Checker.Loop.TriggerWait()
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satellitePeer.Repair.Checker.Loop.Pause()
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// TODO: Verify segment is in queue by making a query to the database
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// Kill nodes so that online nodes < minimum threshold
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// This will make the segment irreparable
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for _, piece := range remotePieces {
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disqualifyNode(t, ctx, satellitePeer, piece.NodeId)
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}
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count, err := satellitePeer.DB.RepairQueue().Count(ctx)
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require.NoError(t, err)
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require.Equal(t, count, 1)
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// Run the repairer
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satellitePeer.Repair.Repairer.Loop.Restart()
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satellitePeer.Repair.Repairer.Loop.TriggerWait()
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satellitePeer.Repair.Repairer.Loop.Pause()
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satellitePeer.Repair.Repairer.Limiter.Wait()
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count, err = satellitePeer.DB.RepairQueue().Count(ctx)
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require.NoError(t, err)
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require.Equal(t, count, 0)
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})
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}
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// TestRepairMultipleDisqualified does the following:
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// - Uploads test data to 7 nodes
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// - Disqualifies 3 nodes
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// - Triggers data repair, which repairs the data from the remaining 4 nodes to additional 3 new nodes
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// - Shuts down the 4 nodes from which the data was repaired
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// - Now we have just the 3 new nodes to which the data was repaired
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// - Downloads the data from these 3 nodes (succeeds because 3 nodes are enough for download)
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func TestRepairMultipleDisqualified(t *testing.T) {
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testplanet.Run(t, testplanet.Config{
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SatelliteCount: 1,
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StorageNodeCount: 12,
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UplinkCount: 1,
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}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
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// first, upload some remote data
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uplinkPeer := planet.Uplinks[0]
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satellitePeer := planet.Satellites[0]
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// stop discovery service so that we do not get a race condition when we delete nodes from overlay
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satellitePeer.Discovery.Service.Discovery.Stop()
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satellitePeer.Discovery.Service.Refresh.Stop()
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satellitePeer.Repair.Checker.Loop.Pause()
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satellitePeer.Repair.Repairer.Loop.Pause()
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testData := testrand.Bytes(8 * memory.KiB)
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err := uplinkPeer.UploadWithConfig(ctx, satellitePeer, &uplink.RSConfig{
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MinThreshold: 3,
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RepairThreshold: 5,
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SuccessThreshold: 7,
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MaxThreshold: 7,
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}, "testbucket", "test/path", testData)
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require.NoError(t, err)
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// get a remote segment from metainfo
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metainfo := satellitePeer.Metainfo.Service
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listResponse, _, err := metainfo.List(ctx, "", "", "", true, 0, 0)
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require.NoError(t, err)
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var path string
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var pointer *pb.Pointer
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for _, v := range listResponse {
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path = v.GetPath()
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pointer, err = metainfo.Get(ctx, path)
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require.NoError(t, err)
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if pointer.GetType() == pb.Pointer_REMOTE {
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break
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}
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}
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// calculate how many storagenodes to disqualify
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numStorageNodes := len(planet.StorageNodes)
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redundancy := pointer.GetRemote().GetRedundancy()
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remotePieces := pointer.GetRemote().GetRemotePieces()
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minReq := redundancy.GetMinReq()
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numPieces := len(remotePieces)
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toDisqualify := numPieces - (int(minReq + 1))
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// we should have enough storage nodes to repair on
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require.True(t, (numStorageNodes-toDisqualify) >= numPieces)
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// disqualify nodes and track lost pieces
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var lostPieces []int32
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nodesToDisqualify := make(map[storj.NodeID]bool)
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nodesToKeepAlive := make(map[storj.NodeID]bool)
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for i, piece := range remotePieces {
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if i >= toDisqualify {
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nodesToKeepAlive[piece.NodeId] = true
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continue
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}
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nodesToDisqualify[piece.NodeId] = true
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lostPieces = append(lostPieces, piece.GetPieceNum())
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}
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for _, node := range planet.StorageNodes {
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if nodesToDisqualify[node.ID()] {
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disqualifyNode(t, ctx, satellitePeer, node.ID())
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}
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}
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err = satellitePeer.Repair.Checker.RefreshReliabilityCache(ctx)
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require.NoError(t, err)
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satellitePeer.Repair.Checker.Loop.TriggerWait()
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satellitePeer.Repair.Repairer.Loop.TriggerWait()
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satellitePeer.Repair.Repairer.Limiter.Wait()
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// kill nodes kept alive to ensure repair worked
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for _, node := range planet.StorageNodes {
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if nodesToKeepAlive[node.ID()] {
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err = planet.StopPeer(node)
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require.NoError(t, err)
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_, err = satellitePeer.Overlay.Service.UpdateUptime(ctx, node.ID(), false)
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require.NoError(t, err)
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}
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}
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// we should be able to download data without any of the original nodes
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newData, err := uplinkPeer.Download(ctx, satellitePeer, "testbucket", "test/path")
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require.NoError(t, err)
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require.Equal(t, newData, testData)
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// updated pointer should not contain any of the disqualified nodes
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pointer, err = metainfo.Get(ctx, path)
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require.NoError(t, err)
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remotePieces = pointer.GetRemote().GetRemotePieces()
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for _, piece := range remotePieces {
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require.False(t, nodesToDisqualify[piece.NodeId])
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}
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})
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}
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// TestDataRepairUploadLimits does the following:
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// - Uploads test data to nodes
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// - Get one segment of that data to check in which nodes its pieces are stored
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// - Kills as many nodes as needed which store such segment pieces
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// - Triggers data repair
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// - Verify that the number of pieces which repaired has uploaded don't overpass
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// the established limit (success threshold + % of excess)
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func TestDataRepairUploadLimit(t *testing.T) {
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var repairMaxExcessRateOptimalThreshold float64
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testplanet.Run(t, testplanet.Config{
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SatelliteCount: 1,
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StorageNodeCount: 13,
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UplinkCount: 1,
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Reconfigure: testplanet.Reconfigure{
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Satellite: func(log *zap.Logger, index int, config *satellite.Config) {
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repairMaxExcessRateOptimalThreshold = config.Repairer.MaxExcessRateOptimalThreshold
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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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satellite := planet.Satellites[0]
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// stop discovery service so that we do not get a race condition when we delete nodes from overlay
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satellite.Discovery.Service.Discovery.Stop()
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satellite.Discovery.Service.Refresh.Stop()
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// stop audit to prevent possible interactions i.e. repair timeout problems
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satellite.Audit.Service.Loop.Stop()
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satellite.Repair.Checker.Loop.Pause()
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satellite.Repair.Repairer.Loop.Pause()
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const (
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repairThreshold = 5
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successThreshold = 7
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maxThreshold = 9
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)
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var (
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maxRepairUploadThreshold = int(
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math.Ceil(
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float64(successThreshold) * (1 + repairMaxExcessRateOptimalThreshold),
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),
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)
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ul = planet.Uplinks[0]
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testData = testrand.Bytes(8 * memory.KiB)
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)
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err := ul.UploadWithConfig(ctx, satellite, &uplink.RSConfig{
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MinThreshold: 3,
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RepairThreshold: repairThreshold,
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SuccessThreshold: successThreshold,
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MaxThreshold: maxThreshold,
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}, "testbucket", "test/path", testData)
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require.NoError(t, err)
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pointer, path := getRemoteSegment(t, ctx, satellite)
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originalPieces := pointer.GetRemote().GetRemotePieces()
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require.True(t, len(originalPieces) <= maxThreshold)
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{ // Check that there is enough nodes in the network which don't contain
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// pieces of the segment for being able to repair the lost pieces
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availableNumNodes := len(planet.StorageNodes) - len(originalPieces)
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neededNodesForRepair := maxRepairUploadThreshold - repairThreshold
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require.Truef(t,
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availableNumNodes >= neededNodesForRepair,
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"Not enough remaining nodes in the network for repairing the pieces: have= %d, need= %d",
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availableNumNodes, neededNodesForRepair,
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)
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}
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originalStorageNodes := make(map[storj.NodeID]struct{})
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for _, p := range originalPieces {
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originalStorageNodes[p.NodeId] = struct{}{}
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}
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killedNodes := make(map[storj.NodeID]struct{})
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{ // Register nodes of the network which don't have pieces for the segment
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// to be injured and ill nodes which have pieces of the segment in order
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// to injure it
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numNodesToKill := len(originalPieces) - repairThreshold
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for _, node := range planet.StorageNodes {
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if _, ok := originalStorageNodes[node.ID()]; !ok {
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continue
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}
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if len(killedNodes) < numNodesToKill {
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err = planet.StopPeer(node)
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require.NoError(t, err)
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_, err = satellite.Overlay.Service.UpdateUptime(ctx, node.ID(), false)
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require.NoError(t, err)
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killedNodes[node.ID()] = struct{}{}
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}
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}
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}
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satellite.Repair.Checker.Loop.Restart()
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satellite.Repair.Checker.Loop.TriggerWait()
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satellite.Repair.Checker.Loop.Pause()
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satellite.Repair.Repairer.Loop.Restart()
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satellite.Repair.Repairer.Loop.TriggerWait()
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satellite.Repair.Repairer.Loop.Pause()
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satellite.Repair.Repairer.Limiter.Wait()
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// Get the pointer after repair to check the nodes where the pieces are
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// stored
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pointer, err = satellite.Metainfo.Service.Get(ctx, path)
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require.NoError(t, err)
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// Check that repair has uploaded missed pieces to an expected number of
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// nodes
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afterRepairPieces := pointer.GetRemote().GetRemotePieces()
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require.Falsef(t,
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len(afterRepairPieces) > maxRepairUploadThreshold,
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"Repaired pieces cannot be over max repair upload threshold. maxRepairUploadThreshold= %d, have= %d",
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maxRepairUploadThreshold, len(afterRepairPieces),
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)
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require.Falsef(t,
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len(afterRepairPieces) < successThreshold,
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"Repaired pieces shouldn't be under success threshold. successThreshold= %d, have= %d",
|
|
successThreshold, len(afterRepairPieces),
|
|
)
|
|
|
|
// Check that after repair, the segment doesn't have more pieces on the
|
|
// killed nodes
|
|
for _, p := range afterRepairPieces {
|
|
require.NotContains(t, killedNodes, p.NodeId, "there shouldn't be pieces in killed nodes")
|
|
}
|
|
})
|
|
}
|
|
|
|
func isDisqualified(t *testing.T, ctx *testcontext.Context, satellite *satellite.Peer, nodeID storj.NodeID) bool {
|
|
node, err := satellite.Overlay.Service.Get(ctx, nodeID)
|
|
require.NoError(t, err)
|
|
|
|
return node.Disqualified != nil
|
|
}
|
|
|
|
func disqualifyNode(t *testing.T, ctx *testcontext.Context, satellite *satellite.Peer, nodeID storj.NodeID) {
|
|
_, err := satellite.DB.OverlayCache().UpdateStats(ctx, &overlay.UpdateRequest{
|
|
NodeID: nodeID,
|
|
IsUp: true,
|
|
AuditSuccess: false,
|
|
AuditLambda: 0,
|
|
AuditWeight: 1,
|
|
AuditDQ: 0.5,
|
|
UptimeLambda: 1,
|
|
UptimeWeight: 1,
|
|
UptimeDQ: 0.5,
|
|
})
|
|
require.NoError(t, err)
|
|
require.True(t, isDisqualified(t, ctx, satellite, nodeID))
|
|
}
|
|
|
|
// getRemoteSegment returns a remote pointer its path from satellite.
|
|
// nolint:golint
|
|
func getRemoteSegment(
|
|
t *testing.T, ctx context.Context, satellite *satellite.Peer,
|
|
) (_ *pb.Pointer, path string) {
|
|
t.Helper()
|
|
|
|
// get a remote segment from metainfo
|
|
metainfo := satellite.Metainfo.Service
|
|
listResponse, _, err := metainfo.List(ctx, "", "", "", true, 0, 0)
|
|
require.NoError(t, err)
|
|
|
|
for _, v := range listResponse {
|
|
path := v.GetPath()
|
|
pointer, err := metainfo.Get(ctx, path)
|
|
require.NoError(t, err)
|
|
if pointer.GetType() == pb.Pointer_REMOTE {
|
|
return pointer, path
|
|
}
|
|
}
|
|
|
|
t.Fatal("satellite doesn't have any remote segment")
|
|
return nil, ""
|
|
}
|
|
|
|
// nolint:golint
|
|
func stopNodeByID(t *testing.T, ctx context.Context, planet *testplanet.Planet, nodeID storj.NodeID) {
|
|
t.Helper()
|
|
|
|
for _, node := range planet.StorageNodes {
|
|
if node.ID() == nodeID {
|
|
err := planet.StopPeer(node)
|
|
require.NoError(t, err)
|
|
|
|
for _, sat := range planet.Satellites {
|
|
_, err = sat.Overlay.Service.UpdateUptime(ctx, node.ID(), false)
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
break
|
|
}
|
|
}
|
|
}
|