frostfs-node/pkg/local_object_storage/engine/error_test.go

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package engine
import (
"fmt"
"os"
"path/filepath"
"strconv"
"testing"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor"
meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
"github.com/stretchr/testify/require"
"go.uber.org/zap/zaptest"
)
const errSmallSize = 256
func newEngineWithErrorThreshold(t testing.TB, dir string, errThreshold uint32) (*StorageEngine, string, [2]*shard.ID) {
if dir == "" {
var err error
dir, err = os.MkdirTemp("", "*")
require.NoError(t, err)
t.Cleanup(func() { _ = os.RemoveAll(dir) })
}
e := New(
WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
WithShardPoolSize(1),
WithErrorThreshold(errThreshold))
var ids [2]*shard.ID
var err error
for i := range ids {
ids[i], err = e.AddShard(
shard.WithLogger(&logger.Logger{Logger: zaptest.NewLogger(t)}),
shard.WithBlobStorOptions(
blobstor.WithStorages(newStorages(filepath.Join(dir, strconv.Itoa(i)), errSmallSize))),
shard.WithMetaBaseOptions(
meta.WithPath(filepath.Join(dir, fmt.Sprintf("%d.metabase", i))),
meta.WithPermissions(0700),
meta.WithEpochState(epochState{}),
),
shard.WithPiloramaOptions(
pilorama.WithPath(filepath.Join(dir, fmt.Sprintf("%d.pilorama", i))),
pilorama.WithPerm(0700)))
require.NoError(t, err)
}
require.NoError(t, e.Open())
require.NoError(t, e.Init())
return e, dir, ids
}
func TestErrorReporting(t *testing.T) {
t.Run("ignore errors by default", func(t *testing.T) {
e, dir, id := newEngineWithErrorThreshold(t, "", 0)
obj := generateObjectWithCID(t, cidtest.ID())
obj.SetPayload(make([]byte, errSmallSize))
var prm shard.PutPrm
prm.SetObject(obj)
e.mtx.RLock()
_, err := e.shards[id[0].String()].Shard.Put(prm)
e.mtx.RUnlock()
require.NoError(t, err)
_, err = e.Get(GetPrm{addr: object.AddressOf(obj)})
require.NoError(t, err)
checkShardState(t, e, id[0], 0, mode.ReadWrite)
checkShardState(t, e, id[1], 0, mode.ReadWrite)
corruptSubDir(t, filepath.Join(dir, "0"))
for i := uint32(1); i < 3; i++ {
_, err = e.Get(GetPrm{addr: object.AddressOf(obj)})
require.Error(t, err)
checkShardState(t, e, id[0], i, mode.ReadWrite)
checkShardState(t, e, id[1], 0, mode.ReadWrite)
}
})
t.Run("with error threshold", func(t *testing.T) {
const errThreshold = 3
e, dir, id := newEngineWithErrorThreshold(t, "", errThreshold)
obj := generateObjectWithCID(t, cidtest.ID())
obj.SetPayload(make([]byte, errSmallSize))
var prm shard.PutPrm
prm.SetObject(obj)
e.mtx.RLock()
_, err := e.shards[id[0].String()].Put(prm)
e.mtx.RUnlock()
require.NoError(t, err)
_, err = e.Get(GetPrm{addr: object.AddressOf(obj)})
require.NoError(t, err)
checkShardState(t, e, id[0], 0, mode.ReadWrite)
checkShardState(t, e, id[1], 0, mode.ReadWrite)
corruptSubDir(t, filepath.Join(dir, "0"))
for i := uint32(1); i < errThreshold; i++ {
_, err = e.Get(GetPrm{addr: object.AddressOf(obj)})
require.Error(t, err)
checkShardState(t, e, id[0], i, mode.ReadWrite)
checkShardState(t, e, id[1], 0, mode.ReadWrite)
}
for i := uint32(0); i < 2; i++ {
_, err = e.Get(GetPrm{addr: object.AddressOf(obj)})
require.Error(t, err)
checkShardState(t, e, id[0], errThreshold+i, mode.DegradedReadOnly)
checkShardState(t, e, id[1], 0, mode.ReadWrite)
}
require.NoError(t, e.SetShardMode(id[0], mode.ReadWrite, false))
checkShardState(t, e, id[0], errThreshold+1, mode.ReadWrite)
require.NoError(t, e.SetShardMode(id[0], mode.ReadWrite, true))
checkShardState(t, e, id[0], 0, mode.ReadWrite)
})
}
// Issue #1186.
func TestBlobstorFailback(t *testing.T) {
dir, err := os.MkdirTemp("", "*")
require.NoError(t, err)
t.Cleanup(func() { require.NoError(t, os.RemoveAll(dir)) })
e, _, id := newEngineWithErrorThreshold(t, dir, 1)
objs := make([]*objectSDK.Object, 0, 2)
for _, size := range []int{15, errSmallSize + 1} {
obj := generateObjectWithCID(t, cidtest.ID())
obj.SetPayload(make([]byte, size))
var prm shard.PutPrm
prm.SetObject(obj)
e.mtx.RLock()
_, err = e.shards[id[0].String()].Shard.Put(prm)
e.mtx.RUnlock()
require.NoError(t, err)
objs = append(objs, obj)
}
for i := range objs {
addr := object.AddressOf(objs[i])
_, err = e.Get(GetPrm{addr: addr})
require.NoError(t, err)
_, err = e.GetRange(RngPrm{addr: addr})
require.NoError(t, err)
}
checkShardState(t, e, id[0], 0, mode.ReadWrite)
require.NoError(t, e.Close())
p1 := e.shards[id[0].String()].Shard.DumpInfo().BlobStorInfo.SubStorages[1].Path
p2 := e.shards[id[1].String()].Shard.DumpInfo().BlobStorInfo.SubStorages[1].Path
tmp := filepath.Join(dir, "tmp")
require.NoError(t, os.Rename(p1, tmp))
require.NoError(t, os.Rename(p2, p1))
require.NoError(t, os.Rename(tmp, p2))
e, _, id = newEngineWithErrorThreshold(t, dir, 1)
for i := range objs {
addr := object.AddressOf(objs[i])
getRes, err := e.Get(GetPrm{addr: addr})
require.NoError(t, err)
require.Equal(t, objs[i], getRes.Object())
rngRes, err := e.GetRange(RngPrm{addr: addr, off: 1, ln: 10})
require.NoError(t, err)
require.Equal(t, objs[i].Payload()[1:11], rngRes.Object().Payload())
_, err = e.GetRange(RngPrm{addr: addr, off: errSmallSize + 10, ln: 1})
require.ErrorAs(t, err, &apistatus.ObjectOutOfRange{})
}
checkShardState(t, e, id[0], 1, mode.DegradedReadOnly)
checkShardState(t, e, id[1], 0, mode.ReadWrite)
}
func checkShardState(t *testing.T, e *StorageEngine, id *shard.ID, errCount uint32, mode mode.Mode) {
e.mtx.RLock()
sh := e.shards[id.String()]
e.mtx.RUnlock()
require.Equal(t, errCount, sh.errorCount.Load())
require.Equal(t, mode, sh.GetMode())
}
// corruptSubDir makes random directory except "blobovnicza" in blobstor FSTree unreadable.
func corruptSubDir(t *testing.T, dir string) {
de, err := os.ReadDir(dir)
require.NoError(t, err)
// FIXME(@cthulhu-rider): copy-paste of unexported const from blobstor package, see #1407
const dirBlobovnicza = "blobovnicza"
for i := range de {
if de[i].IsDir() && de[i].Name() != dirBlobovnicza {
require.NoError(t, os.Chmod(filepath.Join(dir, de[i].Name()), 0))
return
}
}
}