forked from TrueCloudLab/frostfs-node
Dmitrii Stepanov
f0355a453e
Current implementation has some quirks. For example, using only half of object.put.pool_size_remote threads tells replicator that is node is 50% loaded, but in reality we could be putting lot's of big objects. Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
1123 lines
32 KiB
Go
1123 lines
32 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"io/fs"
|
|
"net"
|
|
"os"
|
|
"os/signal"
|
|
"path/filepath"
|
|
"strings"
|
|
"sync"
|
|
"sync/atomic"
|
|
"syscall"
|
|
"time"
|
|
|
|
netmapV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/netmap"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config"
|
|
apiclientconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/apiclient"
|
|
contractsconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/contracts"
|
|
engineconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine"
|
|
shardconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard"
|
|
blobovniczaconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard/blobstor/blobovnicza"
|
|
fstreeconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard/blobstor/fstree"
|
|
loggerconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/logger"
|
|
nodeconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/node"
|
|
objectconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/object"
|
|
replicatorconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/replicator"
|
|
tracingconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/tracing"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/container"
|
|
netmapCore "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/netmap"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/blobovniczatree"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/fstree"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/engine"
|
|
meta "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase"
|
|
lsmetrics "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metrics"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/pilorama"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard"
|
|
shardmode "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/writecache"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/metrics"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
|
|
containerClient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client/container"
|
|
nmClient "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client/netmap"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event"
|
|
netmap2 "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event/netmap"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/network"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/network/cache"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control"
|
|
objectService "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object"
|
|
getsvc "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object/get"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object_manager/tombstone"
|
|
tsourse "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/object_manager/tombstone/source"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/replicator"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/tree"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/util/response"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/state"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
|
|
objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
|
|
"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/version"
|
|
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
|
|
neogoutil "github.com/nspcc-dev/neo-go/pkg/util"
|
|
"github.com/panjf2000/ants/v2"
|
|
"go.etcd.io/bbolt"
|
|
"go.uber.org/zap"
|
|
"google.golang.org/grpc"
|
|
)
|
|
|
|
const addressSize = 72 // 32 bytes object ID, 32 bytes container ID, 8 bytes protobuf encoding
|
|
|
|
const maxMsgSize = 4 << 20 // transport msg limit 4 MiB
|
|
|
|
// capacity of the pools of the morph notification handlers
|
|
// for each contract listener.
|
|
const notificationHandlerPoolSize = 10
|
|
|
|
// applicationConfiguration reads and stores component-specific configuration
|
|
// values. It should not store any application helpers structs (pointers to shared
|
|
// structs).
|
|
// It must not be used concurrently.
|
|
type applicationConfiguration struct {
|
|
// _read indicated whether a config
|
|
// has already been read
|
|
_read bool
|
|
|
|
LoggerCfg struct {
|
|
level string
|
|
}
|
|
|
|
EngineCfg struct {
|
|
errorThreshold uint32
|
|
shardPoolSize uint32
|
|
shards []shardCfg
|
|
lowMem bool
|
|
}
|
|
}
|
|
|
|
type shardCfg struct {
|
|
compress bool
|
|
smallSizeObjectLimit uint64
|
|
uncompressableContentType []string
|
|
refillMetabase bool
|
|
mode shardmode.Mode
|
|
|
|
metaCfg struct {
|
|
path string
|
|
perm fs.FileMode
|
|
maxBatchSize int
|
|
maxBatchDelay time.Duration
|
|
}
|
|
|
|
subStorages []subStorageCfg
|
|
|
|
gcCfg struct {
|
|
removerBatchSize int
|
|
removerSleepInterval time.Duration
|
|
expiredCollectorBatchSize int
|
|
expiredCollectorWorkersCount int
|
|
}
|
|
|
|
writecacheCfg struct {
|
|
enabled bool
|
|
path string
|
|
maxBatchSize int
|
|
maxBatchDelay time.Duration
|
|
smallObjectSize uint64
|
|
maxObjSize uint64
|
|
flushWorkerCount int
|
|
sizeLimit uint64
|
|
noSync bool
|
|
}
|
|
|
|
piloramaCfg struct {
|
|
enabled bool
|
|
path string
|
|
perm fs.FileMode
|
|
noSync bool
|
|
maxBatchSize int
|
|
maxBatchDelay time.Duration
|
|
}
|
|
}
|
|
|
|
// id returns persistent id of a shard. It is different from the ID used in runtime
|
|
// and is primarily used to identify shards in the configuration.
|
|
func (c *shardCfg) id() string {
|
|
// This calculation should be kept in sync with
|
|
// pkg/local_object_storage/engine/control.go file.
|
|
var sb strings.Builder
|
|
for i := range c.subStorages {
|
|
sb.WriteString(filepath.Clean(c.subStorages[i].path))
|
|
}
|
|
return sb.String()
|
|
}
|
|
|
|
type subStorageCfg struct {
|
|
// common for all storages
|
|
typ string
|
|
path string
|
|
perm fs.FileMode
|
|
depth uint64
|
|
noSync bool
|
|
|
|
// blobovnicza-specific
|
|
size uint64
|
|
width uint64
|
|
openedCacheSize int
|
|
}
|
|
|
|
// readConfig fills applicationConfiguration with raw configuration values
|
|
// not modifying them.
|
|
func (a *applicationConfiguration) readConfig(c *config.Config) error {
|
|
if a._read {
|
|
err := c.Reload()
|
|
if err != nil {
|
|
return fmt.Errorf("could not reload configuration: %w", err)
|
|
}
|
|
|
|
err = validateConfig(c)
|
|
if err != nil {
|
|
return fmt.Errorf("configuration's validation: %w", err)
|
|
}
|
|
|
|
// clear if it is rereading
|
|
*a = applicationConfiguration{}
|
|
}
|
|
|
|
a._read = true
|
|
|
|
// Logger
|
|
|
|
a.LoggerCfg.level = loggerconfig.Level(c)
|
|
|
|
// Storage Engine
|
|
|
|
a.EngineCfg.errorThreshold = engineconfig.ShardErrorThreshold(c)
|
|
a.EngineCfg.shardPoolSize = engineconfig.ShardPoolSize(c)
|
|
a.EngineCfg.lowMem = engineconfig.EngineLowMemoryConsumption(c)
|
|
|
|
return engineconfig.IterateShards(c, false, func(sc *shardconfig.Config) error { return a.updateShardConfig(c, sc) })
|
|
}
|
|
|
|
func (a *applicationConfiguration) updateShardConfig(c *config.Config, oldConfig *shardconfig.Config) error {
|
|
var newConfig shardCfg
|
|
|
|
newConfig.refillMetabase = oldConfig.RefillMetabase()
|
|
newConfig.mode = oldConfig.Mode()
|
|
newConfig.compress = oldConfig.Compress()
|
|
newConfig.uncompressableContentType = oldConfig.UncompressableContentTypes()
|
|
newConfig.smallSizeObjectLimit = oldConfig.SmallSizeLimit()
|
|
|
|
a.setShardWriteCacheConfig(&newConfig, oldConfig)
|
|
|
|
a.setShardPiloramaConfig(c, &newConfig, oldConfig)
|
|
|
|
if err := a.setShardStorageConfig(&newConfig, oldConfig); err != nil {
|
|
return err
|
|
}
|
|
|
|
a.setMetabaseConfig(&newConfig, oldConfig)
|
|
|
|
a.setGCConfig(&newConfig, oldConfig)
|
|
|
|
a.EngineCfg.shards = append(a.EngineCfg.shards, newConfig)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (a *applicationConfiguration) setShardWriteCacheConfig(newConfig *shardCfg, oldConfig *shardconfig.Config) {
|
|
writeCacheCfg := oldConfig.WriteCache()
|
|
if writeCacheCfg.Enabled() {
|
|
wc := &newConfig.writecacheCfg
|
|
|
|
wc.enabled = true
|
|
wc.path = writeCacheCfg.Path()
|
|
wc.maxBatchSize = writeCacheCfg.BoltDB().MaxBatchSize()
|
|
wc.maxBatchDelay = writeCacheCfg.BoltDB().MaxBatchDelay()
|
|
wc.maxObjSize = writeCacheCfg.MaxObjectSize()
|
|
wc.smallObjectSize = writeCacheCfg.SmallObjectSize()
|
|
wc.flushWorkerCount = writeCacheCfg.WorkersNumber()
|
|
wc.sizeLimit = writeCacheCfg.SizeLimit()
|
|
wc.noSync = writeCacheCfg.NoSync()
|
|
}
|
|
}
|
|
|
|
func (a *applicationConfiguration) setShardPiloramaConfig(c *config.Config, newConfig *shardCfg, oldConfig *shardconfig.Config) {
|
|
if config.BoolSafe(c.Sub("tree"), "enabled") {
|
|
piloramaCfg := oldConfig.Pilorama()
|
|
pr := &newConfig.piloramaCfg
|
|
|
|
pr.enabled = true
|
|
pr.path = piloramaCfg.Path()
|
|
pr.perm = piloramaCfg.Perm()
|
|
pr.noSync = piloramaCfg.NoSync()
|
|
pr.maxBatchSize = piloramaCfg.MaxBatchSize()
|
|
pr.maxBatchDelay = piloramaCfg.MaxBatchDelay()
|
|
}
|
|
}
|
|
|
|
func (a *applicationConfiguration) setShardStorageConfig(newConfig *shardCfg, oldConfig *shardconfig.Config) error {
|
|
blobStorCfg := oldConfig.BlobStor()
|
|
storagesCfg := blobStorCfg.Storages()
|
|
|
|
ss := make([]subStorageCfg, 0, len(storagesCfg))
|
|
for i := range storagesCfg {
|
|
var sCfg subStorageCfg
|
|
|
|
sCfg.typ = storagesCfg[i].Type()
|
|
sCfg.path = storagesCfg[i].Path()
|
|
sCfg.perm = storagesCfg[i].Perm()
|
|
|
|
switch storagesCfg[i].Type() {
|
|
case blobovniczatree.Type:
|
|
sub := blobovniczaconfig.From((*config.Config)(storagesCfg[i]))
|
|
|
|
sCfg.size = sub.Size()
|
|
sCfg.depth = sub.ShallowDepth()
|
|
sCfg.width = sub.ShallowWidth()
|
|
sCfg.openedCacheSize = sub.OpenedCacheSize()
|
|
case fstree.Type:
|
|
sub := fstreeconfig.From((*config.Config)(storagesCfg[i]))
|
|
sCfg.depth = sub.Depth()
|
|
sCfg.noSync = sub.NoSync()
|
|
default:
|
|
return fmt.Errorf("invalid storage type: %s", storagesCfg[i].Type())
|
|
}
|
|
|
|
ss = append(ss, sCfg)
|
|
}
|
|
|
|
newConfig.subStorages = ss
|
|
return nil
|
|
}
|
|
|
|
func (a *applicationConfiguration) setMetabaseConfig(newConfig *shardCfg, oldConfig *shardconfig.Config) {
|
|
metabaseCfg := oldConfig.Metabase()
|
|
m := &newConfig.metaCfg
|
|
|
|
m.path = metabaseCfg.Path()
|
|
m.perm = metabaseCfg.BoltDB().Perm()
|
|
m.maxBatchDelay = metabaseCfg.BoltDB().MaxBatchDelay()
|
|
m.maxBatchSize = metabaseCfg.BoltDB().MaxBatchSize()
|
|
}
|
|
|
|
func (a *applicationConfiguration) setGCConfig(newConfig *shardCfg, oldConfig *shardconfig.Config) {
|
|
gcCfg := oldConfig.GC()
|
|
newConfig.gcCfg.removerBatchSize = gcCfg.RemoverBatchSize()
|
|
newConfig.gcCfg.removerSleepInterval = gcCfg.RemoverSleepInterval()
|
|
newConfig.gcCfg.expiredCollectorBatchSize = gcCfg.ExpiredCollectorBatchSize()
|
|
newConfig.gcCfg.expiredCollectorWorkersCount = gcCfg.ExpiredCollectorWorkersCount()
|
|
}
|
|
|
|
// internals contains application-specific internals that are created
|
|
// on application startup and are shared b/w the components during
|
|
// the application life cycle.
|
|
// It should not contain any read configuration values, component-specific
|
|
// helpers and fields.
|
|
type internals struct {
|
|
done chan struct{}
|
|
ctxCancel func()
|
|
internalErr chan error // channel for internal application errors at runtime
|
|
|
|
appCfg *config.Config
|
|
|
|
log *logger.Logger
|
|
|
|
wg sync.WaitGroup
|
|
workers []worker
|
|
closers []closer
|
|
|
|
apiVersion version.Version
|
|
healthStatus *atomic.Int32
|
|
// is node under maintenance
|
|
isMaintenance atomic.Bool
|
|
isOnlineCandidate bool
|
|
}
|
|
|
|
// starts node's maintenance.
|
|
func (c *cfg) startMaintenance() {
|
|
c.isMaintenance.Store(true)
|
|
c.cfgNetmap.state.setControlNetmapStatus(control.NetmapStatus_MAINTENANCE)
|
|
c.log.Info(logs.FrostFSNodeStartedLocalNodesMaintenance)
|
|
}
|
|
|
|
// stops node's maintenance.
|
|
func (c *internals) stopMaintenance() {
|
|
c.isMaintenance.Store(false)
|
|
c.log.Info(logs.FrostFSNodeStoppedLocalNodesMaintenance)
|
|
}
|
|
|
|
// IsMaintenance checks if storage node is under maintenance.
|
|
//
|
|
// Provides util.NodeState to Object service.
|
|
func (c *internals) IsMaintenance() bool {
|
|
return c.isMaintenance.Load()
|
|
}
|
|
|
|
// shared contains component-specific structs/helpers that should
|
|
// be shared during initialization of the application.
|
|
type shared struct {
|
|
privateTokenStore sessionStorage
|
|
persistate *state.PersistentStorage
|
|
|
|
clientCache *cache.ClientCache
|
|
bgClientCache *cache.ClientCache
|
|
putClientCache *cache.ClientCache
|
|
localAddr network.AddressGroup
|
|
|
|
key *keys.PrivateKey
|
|
binPublicKey []byte
|
|
ownerIDFromKey user.ID // user ID calculated from key
|
|
|
|
// current network map
|
|
netMap atomic.Value // type netmap.NetMap
|
|
netMapSource netmapCore.Source
|
|
|
|
cnrClient *containerClient.Client
|
|
|
|
respSvc *response.Service
|
|
|
|
replicator *replicator.Replicator
|
|
|
|
treeService *tree.Service
|
|
|
|
metricsCollector *metrics.NodeMetrics
|
|
|
|
metricsSvc *objectService.MetricCollector
|
|
}
|
|
|
|
// dynamicConfiguration stores parameters of the
|
|
// components that supports runtime reconfigurations.
|
|
type dynamicConfiguration struct {
|
|
logger *logger.Prm
|
|
pprof *httpComponent
|
|
metrics *httpComponent
|
|
}
|
|
|
|
type cfg struct {
|
|
applicationConfiguration
|
|
internals
|
|
shared
|
|
dynamicConfiguration
|
|
|
|
// configuration of the internal
|
|
// services
|
|
cfgGRPC cfgGRPC
|
|
cfgMorph cfgMorph
|
|
cfgAccounting cfgAccounting
|
|
cfgContainer cfgContainer
|
|
cfgNodeInfo cfgNodeInfo
|
|
cfgNetmap cfgNetmap
|
|
cfgControlService cfgControlService
|
|
cfgObject cfgObject
|
|
cfgNotifications cfgNotifications
|
|
}
|
|
|
|
// ReadCurrentNetMap reads network map which has been cached at the
|
|
// latest epoch. Returns an error if value has not been cached yet.
|
|
//
|
|
// Provides interface for NetmapService server.
|
|
func (c *cfg) ReadCurrentNetMap(msg *netmapV2.NetMap) error {
|
|
val := c.netMap.Load()
|
|
if val == nil {
|
|
return errors.New("missing local network map")
|
|
}
|
|
|
|
val.(netmap.NetMap).WriteToV2(msg)
|
|
|
|
return nil
|
|
}
|
|
|
|
type cfgGRPC struct {
|
|
listeners []net.Listener
|
|
|
|
servers []*grpc.Server
|
|
|
|
maxChunkSize uint64
|
|
|
|
maxAddrAmount uint64
|
|
}
|
|
|
|
type cfgMorph struct {
|
|
client *client.Client
|
|
|
|
notaryEnabled bool
|
|
|
|
// TTL of Sidechain cached values. Non-positive value disables caching.
|
|
cacheTTL time.Duration
|
|
|
|
proxyScriptHash neogoutil.Uint160
|
|
}
|
|
|
|
type cfgAccounting struct {
|
|
scriptHash neogoutil.Uint160
|
|
}
|
|
|
|
type cfgContainer struct {
|
|
scriptHash neogoutil.Uint160
|
|
|
|
parsers map[event.Type]event.NotificationParser
|
|
subscribers map[event.Type][]event.Handler
|
|
workerPool util.WorkerPool // pool for asynchronous handlers
|
|
}
|
|
|
|
type cfgNetmap struct {
|
|
scriptHash neogoutil.Uint160
|
|
wrapper *nmClient.Client
|
|
|
|
parsers map[event.Type]event.NotificationParser
|
|
|
|
subscribers map[event.Type][]event.Handler
|
|
workerPool util.WorkerPool // pool for asynchronous handlers
|
|
|
|
state *networkState
|
|
|
|
needBootstrap bool
|
|
reBoostrapTurnedOff *atomic.Bool // managed by control service in runtime
|
|
startEpoch uint64 // epoch number when application is started
|
|
}
|
|
|
|
type cfgNodeInfo struct {
|
|
// values from config
|
|
localInfo netmap.NodeInfo
|
|
}
|
|
|
|
type cfgObject struct {
|
|
getSvc *getsvc.Service
|
|
|
|
cnrSource container.Source
|
|
|
|
eaclSource container.EACLSource
|
|
|
|
pool cfgObjectRoutines
|
|
|
|
cfgLocalStorage cfgLocalStorage
|
|
|
|
tombstoneLifetime uint64
|
|
}
|
|
|
|
type cfgNotifications struct {
|
|
enabled bool
|
|
nw notificationWriter
|
|
defaultTopic string
|
|
}
|
|
|
|
type cfgLocalStorage struct {
|
|
localStorage *engine.StorageEngine
|
|
}
|
|
|
|
type cfgObjectRoutines struct {
|
|
putRemote *ants.Pool
|
|
|
|
putRemoteCapacity int
|
|
|
|
putLocal *ants.Pool
|
|
|
|
putLocalCapacity int
|
|
|
|
replicatorPoolSize int
|
|
|
|
replication *ants.Pool
|
|
}
|
|
|
|
type cfgControlService struct {
|
|
server *grpc.Server
|
|
}
|
|
|
|
var persistateSideChainLastBlockKey = []byte("side_chain_last_processed_block")
|
|
|
|
func initCfg(appCfg *config.Config) *cfg {
|
|
c := &cfg{}
|
|
|
|
err := c.readConfig(appCfg)
|
|
if err != nil {
|
|
panic(fmt.Errorf("config reading: %w", err))
|
|
}
|
|
|
|
key := nodeconfig.Key(appCfg)
|
|
|
|
logPrm, err := c.loggerPrm()
|
|
fatalOnErr(err)
|
|
|
|
logPrm.MetricsNamespace = "frostfs_node"
|
|
|
|
log, err := logger.NewLogger(logPrm)
|
|
fatalOnErr(err)
|
|
|
|
c.internals = initInternals(appCfg, log)
|
|
|
|
relayOnly := nodeconfig.Relay(appCfg)
|
|
|
|
netState := newNetworkState()
|
|
|
|
c.shared = initShared(appCfg, key, netState, relayOnly)
|
|
|
|
c.cfgAccounting = cfgAccounting{
|
|
scriptHash: contractsconfig.Balance(appCfg),
|
|
}
|
|
c.cfgContainer = initContainer(appCfg)
|
|
|
|
c.cfgNetmap = initNetmap(appCfg, netState, relayOnly)
|
|
|
|
c.cfgGRPC = initCfgGRPC()
|
|
|
|
c.cfgMorph = cfgMorph{
|
|
proxyScriptHash: contractsconfig.Proxy(appCfg),
|
|
}
|
|
c.cfgObject = initCfgObject(appCfg)
|
|
|
|
user.IDFromKey(&c.ownerIDFromKey, key.PrivateKey.PublicKey)
|
|
|
|
c.metricsCollector = metrics.NewNodeMetrics()
|
|
netState.metrics = c.metricsCollector
|
|
|
|
c.onShutdown(c.clientCache.CloseAll) // clean up connections
|
|
c.onShutdown(c.bgClientCache.CloseAll) // clean up connections
|
|
c.onShutdown(c.putClientCache.CloseAll) // clean up connections
|
|
c.onShutdown(func() { _ = c.persistate.Close() })
|
|
|
|
return c
|
|
}
|
|
|
|
func initInternals(appCfg *config.Config, log *logger.Logger) internals {
|
|
var healthStatus atomic.Int32
|
|
healthStatus.Store(int32(control.HealthStatus_HEALTH_STATUS_UNDEFINED))
|
|
|
|
return internals{
|
|
done: make(chan struct{}),
|
|
appCfg: appCfg,
|
|
internalErr: make(chan error),
|
|
log: log,
|
|
apiVersion: version.Current(),
|
|
healthStatus: &healthStatus,
|
|
}
|
|
}
|
|
|
|
func initShared(appCfg *config.Config, key *keys.PrivateKey, netState *networkState, relayOnly bool) shared {
|
|
var netAddr network.AddressGroup
|
|
|
|
if !relayOnly {
|
|
netAddr = nodeconfig.BootstrapAddresses(appCfg)
|
|
}
|
|
|
|
persistate, err := state.NewPersistentStorage(nodeconfig.PersistentState(appCfg).Path())
|
|
fatalOnErr(err)
|
|
|
|
cacheOpts := cache.ClientCacheOpts{
|
|
DialTimeout: apiclientconfig.DialTimeout(appCfg),
|
|
StreamTimeout: apiclientconfig.StreamTimeout(appCfg),
|
|
Key: &key.PrivateKey,
|
|
AllowExternal: apiclientconfig.AllowExternal(appCfg),
|
|
ReconnectTimeout: apiclientconfig.ReconnectTimeout(appCfg),
|
|
}
|
|
|
|
return shared{
|
|
key: key,
|
|
binPublicKey: key.PublicKey().Bytes(),
|
|
localAddr: netAddr,
|
|
respSvc: response.NewService(response.WithNetworkState(netState)),
|
|
clientCache: cache.NewSDKClientCache(cacheOpts),
|
|
bgClientCache: cache.NewSDKClientCache(cacheOpts),
|
|
putClientCache: cache.NewSDKClientCache(cacheOpts),
|
|
persistate: persistate,
|
|
}
|
|
}
|
|
|
|
func initNetmap(appCfg *config.Config, netState *networkState, relayOnly bool) cfgNetmap {
|
|
netmapWorkerPool, err := ants.NewPool(notificationHandlerPoolSize)
|
|
fatalOnErr(err)
|
|
|
|
var reBootstrapTurnedOff atomic.Bool
|
|
reBootstrapTurnedOff.Store(relayOnly)
|
|
return cfgNetmap{
|
|
scriptHash: contractsconfig.Netmap(appCfg),
|
|
state: netState,
|
|
workerPool: netmapWorkerPool,
|
|
needBootstrap: !relayOnly,
|
|
reBoostrapTurnedOff: &reBootstrapTurnedOff,
|
|
}
|
|
}
|
|
|
|
func initContainer(appCfg *config.Config) cfgContainer {
|
|
containerWorkerPool, err := ants.NewPool(notificationHandlerPoolSize)
|
|
fatalOnErr(err)
|
|
|
|
return cfgContainer{
|
|
scriptHash: contractsconfig.Container(appCfg),
|
|
workerPool: containerWorkerPool,
|
|
}
|
|
}
|
|
|
|
func initCfgGRPC() cfgGRPC {
|
|
maxChunkSize := uint64(maxMsgSize) * 3 / 4 // 25% to meta, 75% to payload
|
|
maxAddrAmount := uint64(maxChunkSize) / addressSize // each address is about 72 bytes
|
|
|
|
return cfgGRPC{
|
|
maxChunkSize: maxChunkSize,
|
|
maxAddrAmount: maxAddrAmount,
|
|
}
|
|
}
|
|
|
|
func initCfgObject(appCfg *config.Config) cfgObject {
|
|
return cfgObject{
|
|
pool: initObjectPool(appCfg),
|
|
tombstoneLifetime: objectconfig.TombstoneLifetime(appCfg),
|
|
}
|
|
}
|
|
|
|
func (c *cfg) engineOpts() []engine.Option {
|
|
opts := make([]engine.Option, 0, 4)
|
|
|
|
opts = append(opts,
|
|
engine.WithShardPoolSize(c.EngineCfg.shardPoolSize),
|
|
engine.WithErrorThreshold(c.EngineCfg.errorThreshold),
|
|
engine.WithLogger(c.log),
|
|
engine.WithLowMemoryConsumption(c.EngineCfg.lowMem),
|
|
)
|
|
|
|
if c.metricsCollector != nil {
|
|
opts = append(opts, engine.WithMetrics(c.metricsCollector.Engine()))
|
|
}
|
|
|
|
return opts
|
|
}
|
|
|
|
type shardOptsWithID struct {
|
|
configID string
|
|
shOpts []shard.Option
|
|
}
|
|
|
|
func (c *cfg) shardOpts() []shardOptsWithID {
|
|
shards := make([]shardOptsWithID, 0, len(c.EngineCfg.shards))
|
|
|
|
for _, shCfg := range c.EngineCfg.shards {
|
|
shards = append(shards, c.getShardOpts(shCfg))
|
|
}
|
|
|
|
return shards
|
|
}
|
|
|
|
func (c *cfg) getWriteCacheOpts(shCfg shardCfg) []writecache.Option {
|
|
var writeCacheOpts []writecache.Option
|
|
if wcRead := shCfg.writecacheCfg; wcRead.enabled {
|
|
writeCacheOpts = append(writeCacheOpts,
|
|
writecache.WithPath(wcRead.path),
|
|
writecache.WithMaxBatchSize(wcRead.maxBatchSize),
|
|
writecache.WithMaxBatchDelay(wcRead.maxBatchDelay),
|
|
writecache.WithMaxObjectSize(wcRead.maxObjSize),
|
|
writecache.WithSmallObjectSize(wcRead.smallObjectSize),
|
|
writecache.WithFlushWorkersCount(wcRead.flushWorkerCount),
|
|
writecache.WithMaxCacheSize(wcRead.sizeLimit),
|
|
writecache.WithNoSync(wcRead.noSync),
|
|
writecache.WithLogger(c.log),
|
|
)
|
|
}
|
|
return writeCacheOpts
|
|
}
|
|
|
|
func (c *cfg) getPiloramaOpts(shCfg shardCfg) []pilorama.Option {
|
|
var piloramaOpts []pilorama.Option
|
|
if prRead := shCfg.piloramaCfg; prRead.enabled {
|
|
piloramaOpts = append(piloramaOpts,
|
|
pilorama.WithPath(prRead.path),
|
|
pilorama.WithPerm(prRead.perm),
|
|
pilorama.WithNoSync(prRead.noSync),
|
|
pilorama.WithMaxBatchSize(prRead.maxBatchSize),
|
|
pilorama.WithMaxBatchDelay(prRead.maxBatchDelay),
|
|
)
|
|
if c.metricsCollector != nil {
|
|
piloramaOpts = append(piloramaOpts, pilorama.WithMetrics(lsmetrics.NewPiloramaMetrics(c.metricsCollector.PiloramaMetrics())))
|
|
}
|
|
}
|
|
return piloramaOpts
|
|
}
|
|
|
|
func (c *cfg) getSubstorageOpts(shCfg shardCfg) []blobstor.SubStorage {
|
|
var ss []blobstor.SubStorage
|
|
for _, sRead := range shCfg.subStorages {
|
|
switch sRead.typ {
|
|
case blobovniczatree.Type:
|
|
blobTreeOpts := []blobovniczatree.Option{
|
|
blobovniczatree.WithRootPath(sRead.path),
|
|
blobovniczatree.WithPermissions(sRead.perm),
|
|
blobovniczatree.WithBlobovniczaSize(sRead.size),
|
|
blobovniczatree.WithBlobovniczaShallowDepth(sRead.depth),
|
|
blobovniczatree.WithBlobovniczaShallowWidth(sRead.width),
|
|
blobovniczatree.WithOpenedCacheSize(sRead.openedCacheSize),
|
|
blobovniczatree.WithLogger(c.log),
|
|
}
|
|
|
|
if c.metricsCollector != nil {
|
|
blobTreeOpts = append(blobTreeOpts,
|
|
blobovniczatree.WithMetrics(
|
|
lsmetrics.NewBlobovniczaTreeMetrics(sRead.path, c.metricsCollector.BlobobvnizcaTreeMetrics()),
|
|
),
|
|
)
|
|
}
|
|
ss = append(ss, blobstor.SubStorage{
|
|
Storage: blobovniczatree.NewBlobovniczaTree(blobTreeOpts...),
|
|
Policy: func(_ *objectSDK.Object, data []byte) bool {
|
|
return uint64(len(data)) < shCfg.smallSizeObjectLimit
|
|
},
|
|
})
|
|
case fstree.Type:
|
|
fstreeOpts := []fstree.Option{
|
|
fstree.WithPath(sRead.path),
|
|
fstree.WithPerm(sRead.perm),
|
|
fstree.WithDepth(sRead.depth),
|
|
fstree.WithNoSync(sRead.noSync),
|
|
}
|
|
if c.metricsCollector != nil {
|
|
fstreeOpts = append(fstreeOpts,
|
|
fstree.WithMetrics(
|
|
lsmetrics.NewFSTreeMetricsWithoutShardID(sRead.path, c.metricsCollector.FSTree()),
|
|
),
|
|
)
|
|
}
|
|
|
|
ss = append(ss, blobstor.SubStorage{
|
|
Storage: fstree.New(fstreeOpts...),
|
|
Policy: func(_ *objectSDK.Object, data []byte) bool {
|
|
return true
|
|
},
|
|
})
|
|
default:
|
|
// should never happen, that has already
|
|
// been handled: when the config was read
|
|
}
|
|
}
|
|
return ss
|
|
}
|
|
|
|
func (c *cfg) getShardOpts(shCfg shardCfg) shardOptsWithID {
|
|
writeCacheOpts := c.getWriteCacheOpts(shCfg)
|
|
piloramaOpts := c.getPiloramaOpts(shCfg)
|
|
ss := c.getSubstorageOpts(shCfg)
|
|
|
|
blobstoreOpts := []blobstor.Option{
|
|
blobstor.WithCompressObjects(shCfg.compress),
|
|
blobstor.WithUncompressableContentTypes(shCfg.uncompressableContentType),
|
|
blobstor.WithStorages(ss),
|
|
blobstor.WithLogger(c.log),
|
|
}
|
|
if c.metricsCollector != nil {
|
|
blobstoreOpts = append(blobstoreOpts, blobstor.WithMetrics(lsmetrics.NewBlobstoreMetrics(c.metricsCollector.Blobstore())))
|
|
}
|
|
|
|
mbOptions := []meta.Option{
|
|
meta.WithPath(shCfg.metaCfg.path),
|
|
meta.WithPermissions(shCfg.metaCfg.perm),
|
|
meta.WithMaxBatchSize(shCfg.metaCfg.maxBatchSize),
|
|
meta.WithMaxBatchDelay(shCfg.metaCfg.maxBatchDelay),
|
|
meta.WithBoltDBOptions(&bbolt.Options{
|
|
Timeout: 100 * time.Millisecond,
|
|
}),
|
|
meta.WithLogger(c.log),
|
|
meta.WithEpochState(c.cfgNetmap.state),
|
|
}
|
|
if c.metricsCollector != nil {
|
|
mbOptions = append(mbOptions, meta.WithMetrics(lsmetrics.NewMetabaseMetrics(shCfg.metaCfg.path, c.metricsCollector.MetabaseMetrics())))
|
|
}
|
|
|
|
var sh shardOptsWithID
|
|
sh.configID = shCfg.id()
|
|
sh.shOpts = []shard.Option{
|
|
shard.WithLogger(c.log),
|
|
shard.WithRefillMetabase(shCfg.refillMetabase),
|
|
shard.WithMode(shCfg.mode),
|
|
shard.WithBlobStorOptions(blobstoreOpts...),
|
|
shard.WithMetaBaseOptions(mbOptions...),
|
|
shard.WithPiloramaOptions(piloramaOpts...),
|
|
shard.WithWriteCache(shCfg.writecacheCfg.enabled),
|
|
shard.WithWriteCacheOptions(writeCacheOpts...),
|
|
shard.WithRemoverBatchSize(shCfg.gcCfg.removerBatchSize),
|
|
shard.WithGCRemoverSleepInterval(shCfg.gcCfg.removerSleepInterval),
|
|
shard.WithExpiredCollectorBatchSize(shCfg.gcCfg.expiredCollectorBatchSize),
|
|
shard.WithExpiredCollectorWorkersCount(shCfg.gcCfg.expiredCollectorWorkersCount),
|
|
shard.WithGCWorkerPoolInitializer(func(sz int) util.WorkerPool {
|
|
pool, err := ants.NewPool(sz)
|
|
fatalOnErr(err)
|
|
|
|
return pool
|
|
}),
|
|
}
|
|
return sh
|
|
}
|
|
|
|
func (c *cfg) loggerPrm() (*logger.Prm, error) {
|
|
// check if it has been inited before
|
|
if c.dynamicConfiguration.logger == nil {
|
|
c.dynamicConfiguration.logger = new(logger.Prm)
|
|
}
|
|
|
|
// (re)init read configuration
|
|
err := c.dynamicConfiguration.logger.SetLevelString(c.LoggerCfg.level)
|
|
if err != nil {
|
|
// not expected since validation should be performed before
|
|
panic(fmt.Sprintf("incorrect log level format: %s", c.LoggerCfg.level))
|
|
}
|
|
|
|
return c.dynamicConfiguration.logger, nil
|
|
}
|
|
|
|
func (c *cfg) LocalAddress() network.AddressGroup {
|
|
return c.localAddr
|
|
}
|
|
|
|
func initLocalStorage(c *cfg) {
|
|
ls := engine.New(c.engineOpts()...)
|
|
|
|
addNewEpochAsyncNotificationHandler(c, func(ev event.Event) {
|
|
ls.HandleNewEpoch(ev.(netmap2.NewEpoch).EpochNumber())
|
|
})
|
|
|
|
// allocate memory for the service;
|
|
// service will be created later
|
|
c.cfgObject.getSvc = new(getsvc.Service)
|
|
|
|
var shardsAttached int
|
|
for _, optsWithMeta := range c.shardOpts() {
|
|
id, err := ls.AddShard(append(optsWithMeta.shOpts, shard.WithTombstoneSource(c.createTombstoneSource()))...)
|
|
if err != nil {
|
|
c.log.Error(logs.FrostFSNodeFailedToAttachShardToEngine, zap.Error(err))
|
|
} else {
|
|
shardsAttached++
|
|
c.log.Info(logs.FrostFSNodeShardAttachedToEngine, zap.Stringer("id", id))
|
|
}
|
|
}
|
|
if shardsAttached == 0 {
|
|
fatalOnErr(engineconfig.ErrNoShardConfigured)
|
|
}
|
|
|
|
c.cfgObject.cfgLocalStorage.localStorage = ls
|
|
|
|
c.onShutdown(func() {
|
|
c.log.Info(logs.FrostFSNodeClosingComponentsOfTheStorageEngine)
|
|
|
|
err := ls.Close()
|
|
if err != nil {
|
|
c.log.Info(logs.FrostFSNodeStorageEngineClosingFailure,
|
|
zap.String("error", err.Error()),
|
|
)
|
|
} else {
|
|
c.log.Info(logs.FrostFSNodeAllComponentsOfTheStorageEngineClosedSuccessfully)
|
|
}
|
|
})
|
|
}
|
|
|
|
func initObjectPool(cfg *config.Config) (pool cfgObjectRoutines) {
|
|
var err error
|
|
|
|
optNonBlocking := ants.WithNonblocking(true)
|
|
|
|
pool.putRemoteCapacity = objectconfig.Put(cfg).PoolSizeRemote()
|
|
pool.putRemote, err = ants.NewPool(pool.putRemoteCapacity, optNonBlocking)
|
|
fatalOnErr(err)
|
|
|
|
pool.putLocalCapacity = objectconfig.Put(cfg).PoolSizeLocal()
|
|
pool.putLocal, err = ants.NewPool(pool.putLocalCapacity, optNonBlocking)
|
|
fatalOnErr(err)
|
|
|
|
pool.replicatorPoolSize = replicatorconfig.PoolSize(cfg)
|
|
if pool.replicatorPoolSize <= 0 {
|
|
pool.replicatorPoolSize = pool.putRemoteCapacity
|
|
}
|
|
|
|
pool.replication, err = ants.NewPool(pool.replicatorPoolSize)
|
|
fatalOnErr(err)
|
|
|
|
return pool
|
|
}
|
|
|
|
func (c *cfg) LocalNodeInfo() (*netmapV2.NodeInfo, error) {
|
|
var res netmapV2.NodeInfo
|
|
|
|
ni, ok := c.cfgNetmap.state.getNodeInfo()
|
|
if ok {
|
|
ni.WriteToV2(&res)
|
|
} else {
|
|
c.cfgNodeInfo.localInfo.WriteToV2(&res)
|
|
}
|
|
|
|
return &res, nil
|
|
}
|
|
|
|
// handleLocalNodeInfo rewrites local node info from the FrostFS network map.
|
|
// Called with nil when storage node is outside the FrostFS network map
|
|
// (before entering the network and after leaving it).
|
|
func (c *cfg) handleLocalNodeInfo(ni *netmap.NodeInfo) {
|
|
c.cfgNetmap.state.setNodeInfo(ni)
|
|
}
|
|
|
|
// bootstrapWithState calls "addPeer" method of the Sidechain Netmap contract
|
|
// with the binary-encoded information from the current node's configuration.
|
|
// The state is set using the provided setter which MUST NOT be nil.
|
|
func (c *cfg) bootstrapWithState(stateSetter func(*netmap.NodeInfo)) error {
|
|
ni := c.cfgNodeInfo.localInfo
|
|
stateSetter(&ni)
|
|
|
|
prm := nmClient.AddPeerPrm{}
|
|
prm.SetNodeInfo(ni)
|
|
|
|
return c.cfgNetmap.wrapper.AddPeer(prm)
|
|
}
|
|
|
|
// bootstrapOnline calls cfg.bootstrapWithState with "online" state.
|
|
func bootstrapOnline(c *cfg) error {
|
|
return c.bootstrapWithState((*netmap.NodeInfo).SetOnline)
|
|
}
|
|
|
|
// bootstrap calls bootstrapWithState with:
|
|
// - "maintenance" state if maintenance is in progress on the current node
|
|
// - "online", otherwise
|
|
func (c *cfg) bootstrap() error {
|
|
// switch to online except when under maintenance
|
|
st := c.cfgNetmap.state.controlNetmapStatus()
|
|
if st == control.NetmapStatus_MAINTENANCE {
|
|
c.log.Info(logs.FrostFSNodeBootstrappingWithTheMaintenanceState)
|
|
return c.bootstrapWithState((*netmap.NodeInfo).SetMaintenance)
|
|
}
|
|
|
|
c.log.Info(logs.FrostFSNodeBootstrappingWithOnlineState,
|
|
zap.Stringer("previous", st),
|
|
)
|
|
|
|
return bootstrapOnline(c)
|
|
}
|
|
|
|
// needBootstrap checks if local node should be registered in network on bootup.
|
|
func (c *cfg) needBootstrap() bool {
|
|
return c.cfgNetmap.needBootstrap
|
|
}
|
|
|
|
type dCmp struct {
|
|
name string
|
|
reloadFunc func() error
|
|
}
|
|
|
|
func (c *cfg) signalWatcher(ctx context.Context) {
|
|
ch := make(chan os.Signal, 1)
|
|
signal.Notify(ch, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM)
|
|
|
|
for {
|
|
select {
|
|
case sig := <-ch:
|
|
switch sig {
|
|
case syscall.SIGHUP:
|
|
c.reloadConfig(ctx)
|
|
case syscall.SIGTERM, syscall.SIGINT:
|
|
c.log.Info(logs.FrostFSNodeTerminationSignalHasBeenReceivedStopping)
|
|
// TODO (@acid-ant): #49 need to cover case when stuck at the middle(node health UNDEFINED or STARTING)
|
|
|
|
c.shutdown()
|
|
|
|
c.log.Info(logs.FrostFSNodeTerminationSignalProcessingIsComplete)
|
|
return
|
|
}
|
|
case err := <-c.internalErr: // internal application error
|
|
c.log.Warn(logs.FrostFSNodeInternalApplicationError,
|
|
zap.String("message", err.Error()))
|
|
|
|
c.shutdown()
|
|
|
|
c.log.Info(logs.FrostFSNodeInternalErrorProcessingIsComplete)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func (c *cfg) reloadConfig(ctx context.Context) {
|
|
c.log.Info(logs.FrostFSNodeSIGHUPHasBeenReceivedRereadingConfiguration)
|
|
|
|
err := c.readConfig(c.appCfg)
|
|
if err != nil {
|
|
c.log.Error(logs.FrostFSNodeConfigurationReading, zap.Error(err))
|
|
return
|
|
}
|
|
|
|
// all the components are expected to support
|
|
// Logger's dynamic reconfiguration approach
|
|
var components []dCmp
|
|
|
|
// Logger
|
|
|
|
logPrm, err := c.loggerPrm()
|
|
if err != nil {
|
|
c.log.Error(logs.FrostFSNodeLoggerConfigurationPreparation, zap.Error(err))
|
|
return
|
|
}
|
|
|
|
components = append(components, dCmp{"logger", logPrm.Reload})
|
|
components = append(components, dCmp{"tracing", func() error {
|
|
updated, err := tracing.Setup(ctx, *tracingconfig.ToTracingConfig(c.appCfg))
|
|
if updated {
|
|
c.log.Info(logs.FrostFSNodeTracingConfigationUpdated)
|
|
}
|
|
return err
|
|
}})
|
|
if cmp, updated := metricsComponent(c); updated {
|
|
if cmp.enabled {
|
|
cmp.preReload = enableMetricsSvc
|
|
} else {
|
|
cmp.preReload = disableMetricsSvc
|
|
}
|
|
components = append(components, dCmp{cmp.name, func() error { return cmp.reload(ctx) }})
|
|
}
|
|
if cmp, updated := pprofComponent(c); updated {
|
|
components = append(components, dCmp{cmp.name, func() error { return cmp.reload(ctx) }})
|
|
}
|
|
|
|
// Storage Engine
|
|
|
|
var rcfg engine.ReConfiguration
|
|
for _, optsWithID := range c.shardOpts() {
|
|
rcfg.AddShard(optsWithID.configID, append(optsWithID.shOpts, shard.WithTombstoneSource(c.createTombstoneSource())))
|
|
}
|
|
|
|
err = c.cfgObject.cfgLocalStorage.localStorage.Reload(ctx, rcfg)
|
|
if err != nil {
|
|
c.log.Error(logs.FrostFSNodeStorageEngineConfigurationUpdate, zap.Error(err))
|
|
return
|
|
}
|
|
|
|
for _, component := range components {
|
|
err = component.reloadFunc()
|
|
if err != nil {
|
|
c.log.Error(logs.FrostFSNodeUpdatedConfigurationApplying,
|
|
zap.String("component", component.name),
|
|
zap.Error(err))
|
|
}
|
|
}
|
|
|
|
c.log.Info(logs.FrostFSNodeConfigurationHasBeenReloadedSuccessfully)
|
|
}
|
|
|
|
func (c *cfg) createTombstoneSource() *tombstone.ExpirationChecker {
|
|
var tssPrm tsourse.TombstoneSourcePrm
|
|
tssPrm.SetGetService(c.cfgObject.getSvc)
|
|
tombstoneSrc := tsourse.NewSource(tssPrm)
|
|
|
|
tombstoneSource := tombstone.NewChecker(
|
|
tombstone.WithLogger(c.log),
|
|
tombstone.WithTombstoneSource(tombstoneSrc),
|
|
)
|
|
return tombstoneSource
|
|
}
|
|
|
|
func (c *cfg) shutdown() {
|
|
c.setHealthStatus(control.HealthStatus_SHUTTING_DOWN)
|
|
|
|
c.ctxCancel()
|
|
c.done <- struct{}{}
|
|
for i := range c.closers {
|
|
c.closers[len(c.closers)-1-i].fn()
|
|
}
|
|
close(c.internalErr)
|
|
}
|