[#1607] services/tree: allow to customize some parameters

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

cmd/neofs-node/tree.go

@@ -8,7 +8,8 @@ import (
 )
 
 func initTreeService(c *cfg) {
-	if !config.BoolSafe(c.appCfg.Sub("tree"), "enabled") {
+	sub := c.appCfg.Sub("tree")
+	if !config.BoolSafe(sub, "enabled") {
 		c.log.Info("tree service is not enabled, skip initialization")
 		return
 	}
@@ -18,7 +19,10 @@ func initTreeService(c *cfg) {
 		tree.WithNetmapSource(c.netMapSource),
 		tree.WithPrivateKey(&c.key.PrivateKey),
 		tree.WithLogger(c.log),
-		tree.WithStorage(c.cfgObject.cfgLocalStorage.localStorage))
+		tree.WithStorage(c.cfgObject.cfgLocalStorage.localStorage),
+		tree.WithContainerCacheSize(int(config.IntSafe(sub, "cache_size"))),
+		tree.WithReplicationChannelCapacity(int(config.IntSafe(sub, "replication_channel_capacity"))),
+		tree.WithReplicationWorkerCount(int(config.IntSafe(sub, "replication_worker_count"))))
 
 	for _, srv := range c.cfgGRPC.servers {
 		tree.RegisterTreeServiceServer(srv, c.treeService)

config/example/node.yaml

@@ -59,6 +59,11 @@ grpc:
       enabled: true
       use_insecure_crypto: true # allow using insecure ciphers with TLS 1.2
 
+tree:
+  cache_size: 10
+  replication_worker_count: 64
+  replication_channel_capacity: 64
+
 control:
   authorized_keys:  # list of hex-encoded public keys that have rights to use the Control Service
     - 035839e45d472a3b7769a2a1bd7d54c4ccd4943c3b40f547870e83a8fcbfb3ce11

pkg/services/tree/container.go

@@ -19,8 +19,8 @@ type containerCache struct {
 	lru *simplelru.LRU
 }
 
-func (c *containerCache) init() {
-	c.lru, _ = simplelru.NewLRU(defaultContainerCacheSize, nil) // no error, size is positive
+func (c *containerCache) init(size int) {
+	c.lru, _ = simplelru.NewLRU(size, nil) // no error, size is positive
 }
 
 type containerCacheItem struct {

pkg/services/tree/options.go

@@ -17,6 +17,10 @@ type cfg struct {
 	nmSource  netmap.Source
 	cnrSource container.Source
 	forest    pilorama.Forest
+	// replication-related parameters
+	replicatorChannelCapacity int
+	replicatorWorkerCount     int
+	containerCacheSize        int
 }
 
 // Option represents configuration option for a tree service.
@@ -60,3 +64,27 @@ func WithStorage(s pilorama.Forest) Option {
 		c.forest = s
 	}
 }
+
+func WithReplicationChannelCapacity(n int) Option {
+	return func(c *cfg) {
+		if n > 0 {
+			c.replicatorChannelCapacity = n
+		}
+	}
+}
+
+func WithReplicationWorkerCount(n int) Option {
+	return func(c *cfg) {
+		if n > 0 {
+			c.replicatorWorkerCount = n
+		}
+	}
+}
+
+func WithContainerCacheSize(n int) Option {
+	return func(c *cfg) {
+		if n > 0 {
+			c.containerCacheSize = n
+		}
+	}
+}

pkg/services/tree/replicator.go

@@ -66,7 +66,7 @@ func (s *Service) replicationWorker() {
 }
 
 func (s *Service) replicateLoop(ctx context.Context) {
-	for i := 0; i < defaultReplicatorWorkerCount; i++ {
+	for i := 0; i < s.replicatorWorkerCount; i++ {
 		go s.replicationWorker()
 	}
 	defer func() {

pkg/services/tree/service.go

@@ -33,6 +33,10 @@ var _ TreeServiceServer = (*Service)(nil)
 // New creates new tree service instance.
 func New(opts ...Option) *Service {
 	var s Service
+	s.containerCacheSize = defaultContainerCacheSize
+	s.replicatorChannelCapacity = defaultReplicatorCapacity
+	s.replicatorWorkerCount = defaultReplicatorWorkerCount
+
 	for i := range opts {
 		opts[i](&s.cfg)
 	}
@@ -43,9 +47,9 @@ func New(opts ...Option) *Service {
 
 	s.cache.init()
 	s.closeCh = make(chan struct{})
-	s.replicateCh = make(chan movePair, defaultReplicatorCapacity)
-	s.replicationTasks = make(chan replicationTask, defaultReplicatorWorkerCount)
-	s.containerCache.init()
+	s.replicateCh = make(chan movePair, s.replicatorChannelCapacity)
+	s.replicationTasks = make(chan replicationTask, s.replicatorWorkerCount)
+	s.containerCache.init(s.containerCacheSize)
 
 	return &s
 }