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[#114] pool: Support client cut with memory limiter

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Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>
This commit is contained in:
Denis Kirillov 2023-07-11 12:02:23 +03:00
parent 342524159a
commit 518fb79bc0
5 changed files with 370 additions and 34 deletions
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4
pool/cache.go
View file

@ -69,3 +69,7 @@ func (c *sessionCache) expired(val *cacheValue) bool {
// use epoch+1 (clear cache beforehand) to prevent 'expired session token' error right after epoch tick
return val.token.ExpiredAt(epoch + 1)
}
func (c *sessionCache) Epoch() uint64 {
return c.currentEpoch.Load()
}

107
pool/object_put_transformer.go Normal file
View file

@ -0,0 +1,107 @@
package pool
import (
"context"
"crypto/ecdsa"
sdkClient "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/transformer"
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
)
type PrmObjectPutClientCutInit struct {
sdkClient.PrmObjectPutInit
key *ecdsa.PrivateKey
maxSize uint64
epochSource transformer.EpochSource
withoutHomomorphicHash bool
stoken *session.Object
}
func (c *clientWrapper) objectPutInitTransformer(prm PrmObjectPutClientCutInit) (*objectWriterTransformer, error) {
var w objectWriterTransformer
w.it = internalTarget{
client: c.client,
prm: prm,
}
key := &c.prm.key
if prm.key != nil {
key = prm.key
}
w.ot = transformer.NewPayloadSizeLimiter(transformer.Params{
Key: key,
NextTargetInit: func() transformer.ObjectWriter { return &w.it },
MaxSize: prm.maxSize,
WithoutHomomorphicHash: prm.withoutHomomorphicHash,
NetworkState: prm.epochSource,
SessionToken: prm.stoken,
})
return &w, nil
}
type objectWriterTransformer struct {
ot transformer.ChunkedObjectWriter
it internalTarget
err error
}
func (x *objectWriterTransformer) WriteHeader(ctx context.Context, hdr object.Object) bool {
x.err = x.ot.WriteHeader(ctx, &hdr)
return x.err == nil
}
func (x *objectWriterTransformer) WritePayloadChunk(ctx context.Context, chunk []byte) bool {
_, x.err = x.ot.Write(ctx, chunk)
return x.err == nil
}
// ResObjectPut groups the final result values of ObjectPutInit operation.
type ResObjectPut struct {
Status apistatus.Status
OID oid.ID
}
func (x *objectWriterTransformer) Close(ctx context.Context) (*ResObjectPut, error) {
ai, err := x.ot.Close(ctx)
if err != nil {
return nil, err
}
if ai != nil && ai.ParentID != nil {
x.it.res.OID = *ai.ParentID
}
return &x.it.res, nil
}
type internalTarget struct {
client *sdkClient.Client
res ResObjectPut
prm PrmObjectPutClientCutInit
useStream bool
}
func (it *internalTarget) WriteObject(ctx context.Context, o *object.Object) error {
// todo support PutSingle
it.useStream = true
return it.putAsStream(ctx, o)
}
func (it *internalTarget) putAsStream(ctx context.Context, o *object.Object) error {
wrt, err := it.client.ObjectPutInit(ctx, it.prm.PrmObjectPutInit)
if err != nil {
return err
}
if wrt.WriteHeader(ctx, *o) {
wrt.WritePayloadChunk(ctx, o.Payload())
}
res, err := wrt.Close(ctx)
if res != nil {
it.res.Status = res.Status()
it.res.OID = res.StoredObjectID()
}
return err
}

64
pool/parts_buffer_pool.go Normal file
View file

@ -0,0 +1,64 @@
package pool
import (
"fmt"
"sync"
)
type PartBuffer struct {
Buffer []byte
len uint64
}
type PartsBufferPool struct {
syncPool *sync.Pool
limit uint64
maxObjectSize uint64
mu sync.Mutex
available uint64
}
func NewPartBufferPool(limit uint64, maxObjectSize uint64) *PartsBufferPool {
return &PartsBufferPool{
limit: limit,
maxObjectSize: maxObjectSize,
available: limit,
syncPool: &sync.Pool{New: func() any { return make([]byte, maxObjectSize) }},
}
}
func (p *PartsBufferPool) ParBufferSize() uint64 {
return p.maxObjectSize
}
func (p *PartsBufferPool) GetBuffer() (*PartBuffer, error) {
p.mu.Lock()
defer p.mu.Unlock()
if p.maxObjectSize > p.available {
return nil, fmt.Errorf("requested buffer size %d is greater than available: %d", p.maxObjectSize, p.available)
}
p.available -= p.maxObjectSize
return &PartBuffer{
Buffer: p.syncPool.Get().([]byte),
len: p.maxObjectSize,
}, nil
}
func (p *PartsBufferPool) FreeBuffer(buff *PartBuffer) error {
p.mu.Lock()
defer p.mu.Unlock()
used := p.limit - p.available
if buff.len > used {
return fmt.Errorf("buffer size %d to free is greater than used: %d", buff.len, used)
}
p.available += buff.len
p.syncPool.Put(buff.Buffer)
return nil
}

207
pool/pool.go
View file

@ -629,6 +629,14 @@ func (c *clientWrapper) networkInfo(ctx context.Context, _ prmNetworkInfo) (netm
// objectPut writes object to FrostFS.
func (c *clientWrapper) objectPut(ctx context.Context, prm PrmObjectPut) (oid.ID, error) {
if prm.clientCut {
return c.objectPutClientCut(ctx, prm)
}
return c.objectPutServerCut(ctx, prm)
}
func (c *clientWrapper) objectPutServerCut(ctx context.Context, prm PrmObjectPut) (oid.ID, error) {
cl, err := c.getClient()
if err != nil {
return oid.ID{}, err
@ -710,6 +718,80 @@ func (c *clientWrapper) objectPut(ctx context.Context, prm PrmObjectPut) (oid.ID
return res.StoredObjectID(), nil
}
func (c *clientWrapper) objectPutClientCut(ctx context.Context, prm PrmObjectPut) (oid.ID, error) {
var cliPrm sdkClient.PrmObjectPutInit
cliPrm.SetCopiesNumberByVectors(prm.copiesNumber)
if prm.stoken != nil {
cliPrm.WithinSession(*prm.stoken)
}
if prm.key != nil {
cliPrm.UseKey(*prm.key)
}
if prm.btoken != nil {
cliPrm.WithBearerToken(*prm.btoken)
}
putInitPrm := PrmObjectPutClientCutInit{
PrmObjectPutInit: cliPrm,
key: prm.key,
maxSize: prm.networkInfo.MaxObjectSize(),
epochSource: prm.networkInfo,
stoken: prm.stoken,
}
start := time.Now()
wObj, err := c.objectPutInitTransformer(putInitPrm)
c.incRequests(time.Since(start), methodObjectPut)
if err = c.handleError(ctx, nil, err); err != nil {
return oid.ID{}, fmt.Errorf("init writing on API client: %w", err)
}
if wObj.WriteHeader(ctx, prm.hdr) {
if data := prm.hdr.Payload(); len(data) > 0 {
if prm.payload != nil {
prm.payload = io.MultiReader(bytes.NewReader(data), prm.payload)
} else {
prm.payload = bytes.NewReader(data)
}
}
if prm.payload != nil {
var n int
for {
n, err = prm.payload.Read(prm.partBuffer)
if n > 0 {
start = time.Now()
successWrite := wObj.WritePayloadChunk(ctx, prm.partBuffer[:n])
c.incRequests(time.Since(start), methodObjectPut)
if !successWrite {
break
}
continue
}
if errors.Is(err, io.EOF) {
break
}
return oid.ID{}, fmt.Errorf("read payload: %w", c.handleError(ctx, nil, err))
}
}
}
res, err := wObj.Close(ctx)
var st apistatus.Status
if res != nil {
st = res.Status
}
if err = c.handleError(ctx, st, err); err != nil { // here err already carries both status and client errors
return oid.ID{}, fmt.Errorf("client failure: %w", err)
}
return res.OID, nil
}
// objectDelete invokes sdkClient.ObjectDelete parse response status to error.
func (c *clientWrapper) objectDelete(ctx context.Context, prm PrmObjectDelete) error {
cl, err := c.getClient()
@ -1072,6 +1154,7 @@ type InitParameters struct {
nodeParams []NodeParam
requestCallback func(RequestInfo)
dialOptions []grpc.DialOption
maxClientCutMemory uint64
clientBuilder clientBuilder
}
@ -1136,6 +1219,14 @@ func (x *InitParameters) SetGRPCDialOptions(opts ...grpc.DialOption) {
x.dialOptions = opts
}
// SetMaxClientCutMemory sets the max amount of bytes that can be used during client cut (see PrmObjectPut.SetClientCut).
// Default value is 1gb (that should be enough for 200 concurrent PUT request for MaxObjectSize 50mb).
// If the MaxObjectSize network param is greater than limit is set by this method
// Pool.PutObject operations with PrmObjectPut.SetClientCut will fail.
func (x *InitParameters) SetMaxClientCutMemory(size uint64) {
x.maxClientCutMemory = size
}
// setClientBuilder sets clientBuilder used for client construction.
// Wraps setClientBuilderContext without a context.
func (x *InitParameters) setClientBuilder(builder clientBuilder) {
@ -1316,6 +1407,10 @@ type PrmObjectPut struct {
payload io.Reader
copiesNumber []uint32
clientCut bool
partBuffer []byte
networkInfo netmap.NetworkInfo
}
// SetHeader specifies header of the object.
@ -1340,6 +1435,24 @@ func (x *PrmObjectPut) SetCopiesNumberVector(copiesNumber []uint32) {
x.copiesNumber = copiesNumber
}
// SetClientCut enables client cut for objects. It means that full object is prepared on client side
// and retrying is possible. But this leads to additional memory using for buffering object parts.
// Buffer size for every put is MaxObjectSize value from FrostFS network.
// There is limit for total memory allocation for in-flight request and
// can be set by InitParameters.SetMaxClientCutMemory (default value is 1gb).
// Put requests will fail if this limit be reached.
func (x *PrmObjectPut) SetClientCut(clientCut bool) {
x.clientCut = clientCut
}
func (x *PrmObjectPut) setPartBuffer(partBuffer []byte) {
x.partBuffer = partBuffer
}
func (x *PrmObjectPut) setNetworkInfo(ni netmap.NetworkInfo) {
x.networkInfo = ni
}
// PrmObjectDelete groups parameters of DeleteObject operation.
type PrmObjectDelete struct {
prmCommon
@ -1635,6 +1748,11 @@ type Pool struct {
rebalanceParams rebalanceParameters
clientBuilder clientBuilder
logger *zap.Logger
// we cannot initialize partBufferPool in NewPool function,
// so we have to save maxClientCutMemory param for further initialization in Dial.
maxClientCutMemory uint64
partsBufferPool *PartsBufferPool
}
type innerPool struct {
@ -1646,6 +1764,7 @@ type innerPool struct {
const (
defaultSessionTokenExpirationDuration = 100 // in blocks
defaultErrorThreshold = 100
defaultMaxClientCutMemory = 1024 * 1024 * 1024 // 1gb
defaultRebalanceInterval = 15 * time.Second
defaultHealthcheckTimeout = 4 * time.Second
@ -1682,7 +1801,8 @@ func NewPool(options InitParameters) (*Pool, error) {
clientRebalanceInterval: options.clientRebalanceInterval,
sessionExpirationDuration: options.sessionExpirationDuration,
},
clientBuilder: options.clientBuilder,
clientBuilder: options.clientBuilder,
maxClientCutMemory: options.maxClientCutMemory,
}
return pool, nil
@ -1710,7 +1830,7 @@ func (p *Pool) Dial(ctx context.Context) error {
}
var st session.Object
err := initSessionForDuration(ctx, &st, clients[j], p.rebalanceParams.sessionExpirationDuration, *p.key)
err := initSessionForDuration(ctx, &st, clients[j], p.rebalanceParams.sessionExpirationDuration, *p.key, false)
if err != nil {
clients[j].setUnhealthy()
p.log(zap.WarnLevel, "failed to create frostfs session token for client",
@ -1718,7 +1838,7 @@ func (p *Pool) Dial(ctx context.Context) error {
continue
}
_ = p.cache.Put(formCacheKey(addr, p.key), st)
_ = p.cache.Put(formCacheKey(addr, p.key, false), st)
atLeastOneHealthy = true
}
source := rand.NewSource(time.Now().UnixNano())
@ -1739,6 +1859,12 @@ func (p *Pool) Dial(ctx context.Context) error {
p.closedCh = make(chan struct{})
p.innerPools = inner
ni, err := p.NetworkInfo(ctx)
if err != nil {
return fmt.Errorf("get network info for max object size: %w", err)
}
p.partsBufferPool = NewPartBufferPool(p.maxClientCutMemory, ni.MaxObjectSize())
go p.startRebalance(ctx)
return nil
}
@ -1760,6 +1886,10 @@ func fillDefaultInitParams(params *InitParameters, cache *sessionCache) {
params.errorThreshold = defaultErrorThreshold
}
if params.maxClientCutMemory == 0 {
params.maxClientCutMemory = defaultMaxClientCutMemory
}
if params.clientRebalanceInterval <= 0 {
params.clientRebalanceInterval = defaultRebalanceInterval
}
@ -1949,9 +2079,15 @@ func (p *innerPool) connection() (client, error) {
return nil, errors.New("no healthy client")
}
func formCacheKey(address string, key *ecdsa.PrivateKey) string {
func formCacheKey(address string, key *ecdsa.PrivateKey, clientCut bool) string {
k := keys.PrivateKey{PrivateKey: *key}
return address + k.String()
stype := "server"
if clientCut {
stype = "client"
}
return address + stype + k.String()
}
func (p *Pool) checkSessionTokenErr(err error, address string) bool {
@ -1967,7 +2103,7 @@ func (p *Pool) checkSessionTokenErr(err error, address string) bool {
return false
}
func initSessionForDuration(ctx context.Context, dst *session.Object, c client, dur uint64, ownerKey ecdsa.PrivateKey) error {
func initSessionForDuration(ctx context.Context, dst *session.Object, c client, dur uint64, ownerKey ecdsa.PrivateKey, clientCut bool) error {
ni, err := c.networkInfo(ctx, prmNetworkInfo{})
if err != nil {
return err
@ -1985,23 +2121,26 @@ func initSessionForDuration(ctx context.Context, dst *session.Object, c client,
prm.setExp(exp)
prm.useKey(ownerKey)
res, err := c.sessionCreate(ctx, prm)
if err != nil {
return err
}
var (
id uuid.UUID
key frostfsecdsa.PublicKey
)
var id uuid.UUID
if clientCut {
id = uuid.New()
key = frostfsecdsa.PublicKey(ownerKey.PublicKey)
err = id.UnmarshalBinary(res.id)
if err != nil {
return fmt.Errorf("invalid session token ID: %w", err)
}
var key frostfsecdsa.PublicKey
err = key.Decode(res.sessionKey)
if err != nil {
return fmt.Errorf("invalid public session key: %w", err)
} else {
res, err := c.sessionCreate(ctx, prm)
if err != nil {
return err
}
if err = id.UnmarshalBinary(res.id); err != nil {
return fmt.Errorf("invalid session token ID: %w", err)
}
if err = key.Decode(res.sessionKey); err != nil {
return fmt.Errorf("invalid public session key: %w", err)
}
}
dst.SetID(id)
@ -2027,6 +2166,8 @@ type callContext struct {
sessionCnr cid.ID
sessionObjSet bool
sessionObjs []oid.ID
sessionClientCut bool
}
func (p *Pool) initCallContext(ctx *callContext, cfg prmCommon, prmCtx prmContext) error {
@ -2063,12 +2204,12 @@ func (p *Pool) initCallContext(ctx *callContext, cfg prmCommon, prmCtx prmContex
// opens new session or uses cached one.
// Must be called only on initialized callContext with set sessionTarget.
func (p *Pool) openDefaultSession(ctx context.Context, cc *callContext) error {
cacheKey := formCacheKey(cc.endpoint, cc.key)
cacheKey := formCacheKey(cc.endpoint, cc.key, cc.sessionClientCut)
tok, ok := p.cache.Get(cacheKey)
if !ok {
// init new session
err := initSessionForDuration(ctx, &tok, cc.client, p.stokenDuration, *cc.key)
err := initSessionForDuration(ctx, &tok, cc.client, p.stokenDuration, *cc.key, cc.sessionClientCut)
if err != nil {
return fmt.Errorf("session API client: %w", err)
}
@ -2133,6 +2274,7 @@ func (p *Pool) PutObject(ctx context.Context, prm PrmObjectPut) (oid.ID, error)
p.fillAppropriateKey(&prm.prmCommon)
var ctxCall callContext
ctxCall.sessionClientCut = prm.clientCut
if err := p.initCallContext(&ctxCall, prm.prmCommon, prmCtx); err != nil {
return oid.ID{}, fmt.Errorf("init call context: %w", err)
}
@ -2144,6 +2286,25 @@ func (p *Pool) PutObject(ctx context.Context, prm PrmObjectPut) (oid.ID, error)
}
}
buff, err := p.partsBufferPool.GetBuffer()
if err != nil {
return oid.ID{}, fmt.Errorf("cannot get buffer for put operations: %w", err)
}
defer func() {
if errFree := p.partsBufferPool.FreeBuffer(buff); errFree != nil {
p.log(zap.WarnLevel, "failed to free part buffer", zap.Error(err))
}
}()
prm.setPartBuffer(buff.Buffer)
var ni netmap.NetworkInfo
ni.SetCurrentEpoch(p.cache.Epoch())
ni.SetMaxObjectSize(p.partsBufferPool.ParBufferSize()) // we want to use initial max object size in PayloadSizeLimiter
prm.setNetworkInfo(ni)
id, err := ctxCall.client.objectPut(ctx, prm)
if err != nil {
// removes session token from cache in case of token error

22
pool/pool_test.go
View file

@ -106,7 +106,7 @@ func TestBuildPoolOneNodeFailed(t *testing.T) {
if err != nil {
return false
}
st, _ := clientPool.cache.Get(formCacheKey(cp.address(), clientPool.key))
st, _ := clientPool.cache.Get(formCacheKey(cp.address(), clientPool.key, false))
return st.AssertAuthKey(&expectedAuthKey)
}
require.Never(t, condition, 900*time.Millisecond, 100*time.Millisecond)
@ -141,7 +141,7 @@ func TestOneNode(t *testing.T) {
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key))
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
expectedAuthKey := frostfsecdsa.PublicKey(key1.PublicKey)
require.True(t, st.AssertAuthKey(&expectedAuthKey))
}
@ -171,7 +171,7 @@ func TestTwoNodes(t *testing.T) {
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key))
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, assertAuthKeyForAny(st, clientKeys))
}
@ -226,7 +226,7 @@ func TestOneOfTwoFailed(t *testing.T) {
for i := 0; i < 5; i++ {
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key))
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, assertAuthKeyForAny(st, clientKeys))
}
}
@ -296,7 +296,7 @@ func TestSessionCache(t *testing.T) {
// cache must contain session token
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key))
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, st.AssertAuthKey(&expectedAuthKey))
var prm PrmObjectGet
@ -309,7 +309,7 @@ func TestSessionCache(t *testing.T) {
// cache must not contain session token
cp, err = pool.connection()
require.NoError(t, err)
_, ok := pool.cache.Get(formCacheKey(cp.address(), pool.key))
_, ok := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.False(t, ok)
var prm2 PrmObjectPut
@ -321,7 +321,7 @@ func TestSessionCache(t *testing.T) {
// cache must contain session token
cp, err = pool.connection()
require.NoError(t, err)
st, _ = pool.cache.Get(formCacheKey(cp.address(), pool.key))
st, _ = pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, st.AssertAuthKey(&expectedAuthKey))
}
@ -365,7 +365,7 @@ func TestPriority(t *testing.T) {
firstNode := func() bool {
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key))
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
return st.AssertAuthKey(&expectedAuthKey1)
}
@ -373,7 +373,7 @@ func TestPriority(t *testing.T) {
secondNode := func() bool {
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key))
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
return st.AssertAuthKey(&expectedAuthKey2)
}
require.Never(t, secondNode, time.Second, 200*time.Millisecond)
@ -410,7 +410,7 @@ func TestSessionCacheWithKey(t *testing.T) {
// cache must contain session token
cp, err := pool.connection()
require.NoError(t, err)
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key))
st, _ := pool.cache.Get(formCacheKey(cp.address(), pool.key, false))
require.True(t, st.AssertAuthKey(&expectedAuthKey))
var prm PrmObjectDelete
@ -420,7 +420,7 @@ func TestSessionCacheWithKey(t *testing.T) {
err = pool.DeleteObject(ctx, prm)
require.NoError(t, err)
st, _ = pool.cache.Get(formCacheKey(cp.address(), anonKey))
st, _ = pool.cache.Get(formCacheKey(cp.address(), anonKey, false))
require.True(t, st.AssertAuthKey(&expectedAuthKey))
}