package policer import ( "time" lru "github.com/hashicorp/golang-lru" "github.com/nspcc-dev/neofs-node/pkg/core/container" "github.com/nspcc-dev/neofs-node/pkg/core/netmap" "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine" headsvc "github.com/nspcc-dev/neofs-node/pkg/services/object/head" "github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement" "github.com/nspcc-dev/neofs-node/pkg/services/replicator" "github.com/nspcc-dev/neofs-node/pkg/util/logger" oid "github.com/nspcc-dev/neofs-sdk-go/object/id" "github.com/panjf2000/ants/v2" "go.uber.org/zap" ) // NodeLoader provides application load statistics. type nodeLoader interface { // ObjectServiceLoad returns object service load value in [0:1] range. ObjectServiceLoad() float64 } // Policer represents the utility that verifies // compliance with the object storage policy. type Policer struct { *cfg cache *lru.Cache } // Option is an option for Policer constructor. type Option func(*cfg) // RedundantCopyCallback is a callback to pass // the redundant local copy of the object. type RedundantCopyCallback func(oid.Address) type cfg struct { headTimeout time.Duration log *logger.Logger jobQueue jobQueue cnrSrc container.Source placementBuilder placement.Builder remoteHeader *headsvc.RemoteHeader netmapKeys netmap.AnnouncedKeys replicator *replicator.Replicator cbRedundantCopy RedundantCopyCallback taskPool *ants.Pool loader nodeLoader maxCapacity int batchSize, cacheSize uint32 rebalanceFreq, evictDuration time.Duration } func defaultCfg() *cfg { return &cfg{ log: zap.L(), batchSize: 10, cacheSize: 200_000, // should not allocate more than 200 MiB rebalanceFreq: 1 * time.Second, evictDuration: 30 * time.Second, } } // New creates, initializes and returns Policer instance. func New(opts ...Option) *Policer { c := defaultCfg() for i := range opts { opts[i](c) } c.log = c.log.With(zap.String("component", "Object Policer")) cache, err := lru.New(int(c.cacheSize)) if err != nil { panic(err) } return &Policer{ cfg: c, cache: cache, } } // WithHeadTimeout returns option to set Head timeout of Policer. func WithHeadTimeout(v time.Duration) Option { return func(c *cfg) { c.headTimeout = v } } // WithLogger returns option to set Logger of Policer. func WithLogger(v *logger.Logger) Option { return func(c *cfg) { c.log = v } } // WithLocalStorage returns option to set local object storage of Policer. func WithLocalStorage(v *engine.StorageEngine) Option { return func(c *cfg) { c.jobQueue.localStorage = v } } // WithContainerSource returns option to set container source of Policer. func WithContainerSource(v container.Source) Option { return func(c *cfg) { c.cnrSrc = v } } // WithPlacementBuilder returns option to set object placement builder of Policer. func WithPlacementBuilder(v placement.Builder) Option { return func(c *cfg) { c.placementBuilder = v } } // WithRemoteHeader returns option to set object header receiver of Policer. func WithRemoteHeader(v *headsvc.RemoteHeader) Option { return func(c *cfg) { c.remoteHeader = v } } // WithNetmapKeys returns option to set tool to work with announced public keys. func WithNetmapKeys(v netmap.AnnouncedKeys) Option { return func(c *cfg) { c.netmapKeys = v } } // WithReplicator returns option to set object replicator of Policer. func WithReplicator(v *replicator.Replicator) Option { return func(c *cfg) { c.replicator = v } } // WithRedundantCopyCallback returns option to set // callback to pass redundant local object copies // detected by Policer. func WithRedundantCopyCallback(cb RedundantCopyCallback) Option { return func(c *cfg) { c.cbRedundantCopy = cb } } // WithMaxCapacity returns option to set max capacity // that can be set to the pool. func WithMaxCapacity(cap int) Option { return func(c *cfg) { c.maxCapacity = cap } } // WithPool returns option to set pool for // policy and replication operations. func WithPool(p *ants.Pool) Option { return func(c *cfg) { c.taskPool = p } } // WithNodeLoader returns option to set NeoFS node load source. func WithNodeLoader(l nodeLoader) Option { return func(c *cfg) { c.loader = l } }