storj/pkg/storage/segments/repairer_test.go
2019-03-21 16:26:56 +02:00

123 lines
3.5 KiB
Go

// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package segments_test
import (
"math/rand"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"storj.io/storj/internal/memory"
"storj.io/storj/internal/testcontext"
"storj.io/storj/internal/testplanet"
"storj.io/storj/pkg/overlay"
"storj.io/storj/pkg/pb"
ecclient "storj.io/storj/pkg/storage/ec"
"storj.io/storj/pkg/storage/segments"
"storj.io/storj/pkg/storj"
"storj.io/storj/uplink"
)
func TestSegmentStoreRepair(t *testing.T) {
testplanet.Run(t, testplanet.Config{
SatelliteCount: 1, StorageNodeCount: 10, UplinkCount: 1,
}, func(t *testing.T, ctx *testcontext.Context, planet *testplanet.Planet) {
// first, upload some remote data
ul := planet.Uplinks[0]
satellite := planet.Satellites[0]
testData := make([]byte, 5*memory.MiB)
_, err := rand.Read(testData)
assert.NoError(t, err)
err = ul.UploadWithConfig(ctx, satellite, &uplink.RSConfig{
MinThreshold: 1,
RepairThreshold: 2,
SuccessThreshold: 3,
MaxThreshold: 4,
}, "testbucket", "test/path", testData)
require.NoError(t, err)
// get a remote segment from pointerdb
pdb := satellite.Metainfo.Service
listResponse, _, err := pdb.List("", "", "", true, 0, 0)
require.NoError(t, err)
var path string
var pointer *pb.Pointer
for _, v := range listResponse {
path = v.GetPath()
pointer, err = pdb.Get(path)
assert.NoError(t, err)
if pointer.GetType() == pb.Pointer_REMOTE {
break
}
}
// calculate how many storagenodes to kill
numStorageNodes := len(planet.StorageNodes)
redundancy := pointer.GetRemote().GetRedundancy()
remotePieces := pointer.GetRemote().GetRemotePieces()
minReq := redundancy.GetMinReq()
numPieces := len(remotePieces)
toKill := numPieces - int(minReq)
// we should have enough storage nodes to repair on
assert.True(t, (numStorageNodes-toKill) >= numPieces)
// kill nodes and track lost pieces
var lostPieces []int32
nodesToKill := make(map[storj.NodeID]bool)
nodesToKeepAlive := make(map[storj.NodeID]bool)
for i, piece := range remotePieces {
if i >= toKill {
nodesToKeepAlive[piece.NodeId] = true
continue
}
nodesToKill[piece.NodeId] = true
lostPieces = append(lostPieces, piece.GetPieceNum())
}
for _, node := range planet.StorageNodes {
if nodesToKill[node.ID()] {
err = planet.StopPeer(node)
assert.NoError(t, err)
}
}
// repair segment
oc := satellite.Overlay.Service
as := satellite.Metainfo.Allocation
ec := ecclient.NewClient(satellite.Transport, 0)
repairer := segments.NewSegmentRepairer(pdb, as, oc, ec, satellite.Identity, &overlay.NodeSelectionConfig{}, time.Minute)
assert.NotNil(t, repairer)
err = repairer.Repair(ctx, path, lostPieces)
assert.NoError(t, err)
// kill nodes kept alive to ensure repair worked
for _, node := range planet.StorageNodes {
if nodesToKeepAlive[node.ID()] {
err = planet.StopPeer(node)
assert.NoError(t, err)
}
}
// we should be able to download data without any of the original nodes
newData, err := ul.Download(ctx, satellite, "testbucket", "test/path")
assert.NoError(t, err)
assert.Equal(t, newData, testData)
// updated pointer should not contain any of the killed nodes
pointer, err = pdb.Get(path)
assert.NoError(t, err)
remotePieces = pointer.GetRemote().GetRemotePieces()
for _, piece := range remotePieces {
assert.False(t, nodesToKill[piece.NodeId])
}
})
}