Alejandro Lopez
341fe1688f
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This aims to reduce the usage of chmod hackery to induce or simulate OS-related failures. Signed-off-by: Alejandro Lopez <a.lopez@yadro.com>
236 lines
7.5 KiB
Go
236 lines
7.5 KiB
Go
package engine
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import (
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"fmt"
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"os"
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"path/filepath"
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"strconv"
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"testing"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/teststore"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/testutil"
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meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
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apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
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cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
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objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
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"github.com/stretchr/testify/require"
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"go.uber.org/zap/zaptest"
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)
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const errSmallSize = 256
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type testEngine struct {
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ng *StorageEngine
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dir string
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shards [2]*testShard
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}
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type testShard struct {
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id *shard.ID
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smallFileStorage *teststore.TestStore
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largeFileStorage *teststore.TestStore
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}
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func newEngineWithErrorThreshold(t testing.TB, dir string, errThreshold uint32) *testEngine {
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if dir == "" {
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var err error
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dir, err = os.MkdirTemp("", "*")
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require.NoError(t, err)
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t.Cleanup(func() { _ = os.RemoveAll(dir) })
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}
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e := New(
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WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
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WithShardPoolSize(1),
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WithErrorThreshold(errThreshold))
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var testShards [2]*testShard
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for i := range testShards {
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storages, smallFileStorage, largeFileStorage := newTestStorages(filepath.Join(dir, strconv.Itoa(i)), errSmallSize)
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id, err := e.AddShard(
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shard.WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
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shard.WithBlobStorOptions(blobstor.WithStorages(storages)),
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shard.WithMetaBaseOptions(
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meta.WithPath(filepath.Join(dir, fmt.Sprintf("%d.metabase", i))),
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meta.WithPermissions(0700),
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meta.WithEpochState(epochState{}),
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),
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shard.WithPiloramaOptions(
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pilorama.WithPath(filepath.Join(dir, fmt.Sprintf("%d.pilorama", i))),
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pilorama.WithPerm(0700)))
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require.NoError(t, err)
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testShards[i] = &testShard{
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id: id,
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smallFileStorage: smallFileStorage,
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largeFileStorage: largeFileStorage,
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}
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}
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require.NoError(t, e.Open())
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require.NoError(t, e.Init())
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return &testEngine{
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ng: e,
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dir: dir,
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shards: testShards,
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}
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}
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func TestErrorReporting(t *testing.T) {
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t.Run("ignore errors by default", func(t *testing.T) {
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te := newEngineWithErrorThreshold(t, "", 0)
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obj := testutil.GenerateObjectWithCID(cidtest.ID())
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obj.SetPayload(make([]byte, errSmallSize))
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var prm shard.PutPrm
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prm.SetObject(obj)
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te.ng.mtx.RLock()
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_, err := te.ng.shards[te.shards[0].id.String()].Shard.Put(prm)
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te.ng.mtx.RUnlock()
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require.NoError(t, err)
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_, err = te.ng.Get(GetPrm{addr: object.AddressOf(obj)})
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require.NoError(t, err)
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checkShardState(t, te.ng, te.shards[0].id, 0, mode.ReadWrite)
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checkShardState(t, te.ng, te.shards[1].id, 0, mode.ReadWrite)
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for _, shard := range te.shards {
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shard.largeFileStorage.SetOption(teststore.WithGet(func(common.GetPrm) (common.GetRes, error) {
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return common.GetRes{}, teststore.ErrDiskExploded
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}))
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}
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for i := uint32(1); i < 3; i++ {
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_, err = te.ng.Get(GetPrm{addr: object.AddressOf(obj)})
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require.Error(t, err)
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checkShardState(t, te.ng, te.shards[0].id, i, mode.ReadWrite)
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checkShardState(t, te.ng, te.shards[1].id, 0, mode.ReadWrite)
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}
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})
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t.Run("with error threshold", func(t *testing.T) {
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const errThreshold = 3
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te := newEngineWithErrorThreshold(t, "", errThreshold)
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obj := testutil.GenerateObjectWithCID(cidtest.ID())
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obj.SetPayload(make([]byte, errSmallSize))
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var prm shard.PutPrm
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prm.SetObject(obj)
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te.ng.mtx.RLock()
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_, err := te.ng.shards[te.shards[0].id.String()].Put(prm)
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te.ng.mtx.RUnlock()
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require.NoError(t, err)
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_, err = te.ng.Get(GetPrm{addr: object.AddressOf(obj)})
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require.NoError(t, err)
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checkShardState(t, te.ng, te.shards[0].id, 0, mode.ReadWrite)
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checkShardState(t, te.ng, te.shards[1].id, 0, mode.ReadWrite)
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for _, shard := range te.shards {
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shard.largeFileStorage.SetOption(teststore.WithGet(func(common.GetPrm) (common.GetRes, error) {
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return common.GetRes{}, teststore.ErrDiskExploded
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}))
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}
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for i := uint32(1); i < errThreshold; i++ {
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_, err = te.ng.Get(GetPrm{addr: object.AddressOf(obj)})
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require.Error(t, err)
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checkShardState(t, te.ng, te.shards[0].id, i, mode.ReadWrite)
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checkShardState(t, te.ng, te.shards[1].id, 0, mode.ReadWrite)
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}
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for i := uint32(0); i < 2; i++ {
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_, err = te.ng.Get(GetPrm{addr: object.AddressOf(obj)})
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require.Error(t, err)
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checkShardState(t, te.ng, te.shards[0].id, errThreshold+i, mode.DegradedReadOnly)
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checkShardState(t, te.ng, te.shards[1].id, 0, mode.ReadWrite)
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}
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require.NoError(t, te.ng.SetShardMode(te.shards[0].id, mode.ReadWrite, false))
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checkShardState(t, te.ng, te.shards[0].id, errThreshold+1, mode.ReadWrite)
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require.NoError(t, te.ng.SetShardMode(te.shards[0].id, mode.ReadWrite, true))
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checkShardState(t, te.ng, te.shards[0].id, 0, mode.ReadWrite)
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})
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}
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func TestBlobstorFailback(t *testing.T) {
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dir, err := os.MkdirTemp("", "*")
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require.NoError(t, err)
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t.Cleanup(func() { require.NoError(t, os.RemoveAll(dir)) })
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te := newEngineWithErrorThreshold(t, dir, 1)
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objs := make([]*objectSDK.Object, 0, 2)
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for _, size := range []int{15, errSmallSize + 1} {
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obj := testutil.GenerateObjectWithCID(cidtest.ID())
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obj.SetPayload(make([]byte, size))
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var prm shard.PutPrm
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prm.SetObject(obj)
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te.ng.mtx.RLock()
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_, err = te.ng.shards[te.shards[0].id.String()].Shard.Put(prm)
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te.ng.mtx.RUnlock()
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require.NoError(t, err)
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objs = append(objs, obj)
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}
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for i := range objs {
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addr := object.AddressOf(objs[i])
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_, err = te.ng.Get(GetPrm{addr: addr})
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require.NoError(t, err)
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_, err = te.ng.GetRange(RngPrm{addr: addr})
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require.NoError(t, err)
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}
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checkShardState(t, te.ng, te.shards[0].id, 0, mode.ReadWrite)
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require.NoError(t, te.ng.Close())
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p1 := te.ng.shards[te.shards[0].id.String()].Shard.DumpInfo().BlobStorInfo.SubStorages[1].Path
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p2 := te.ng.shards[te.shards[1].id.String()].Shard.DumpInfo().BlobStorInfo.SubStorages[1].Path
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tmp := filepath.Join(dir, "tmp")
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require.NoError(t, os.Rename(p1, tmp))
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require.NoError(t, os.Rename(p2, p1))
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require.NoError(t, os.Rename(tmp, p2))
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te = newEngineWithErrorThreshold(t, dir, 1)
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for i := range objs {
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addr := object.AddressOf(objs[i])
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getRes, err := te.ng.Get(GetPrm{addr: addr})
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require.NoError(t, err)
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require.Equal(t, objs[i], getRes.Object())
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rngRes, err := te.ng.GetRange(RngPrm{addr: addr, off: 1, ln: 10})
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require.NoError(t, err)
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require.Equal(t, objs[i].Payload()[1:11], rngRes.Object().Payload())
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_, err = te.ng.GetRange(RngPrm{addr: addr, off: errSmallSize + 10, ln: 1})
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require.ErrorAs(t, err, &apistatus.ObjectOutOfRange{})
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}
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checkShardState(t, te.ng, te.shards[0].id, 1, mode.DegradedReadOnly)
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checkShardState(t, te.ng, te.shards[1].id, 0, mode.ReadWrite)
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}
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func checkShardState(t *testing.T, e *StorageEngine, id *shard.ID, errCount uint32, mode mode.Mode) {
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e.mtx.RLock()
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sh := e.shards[id.String()]
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e.mtx.RUnlock()
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require.Equal(t, errCount, sh.errorCount.Load())
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require.Equal(t, mode, sh.GetMode())
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}
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