Merge pull request #2973 from ipfs/feature/blockstore-bloom-config

config: add config option for bloom filter

core/builder.go

@@ -136,6 +136,12 @@ func setupNode(ctx context.Context, n *IpfsNode, cfg *BuildCfg) error {
 	var err error
 	bs := bstore.NewBlockstore(n.Repo.Datastore())
 	opts := bstore.DefaultCacheOpts()
+	conf, err := n.Repo.Config()
+	if err != nil {
+		return err
+	}
+
+	opts.HasBloomFilterSize = conf.Datastore.BloomFilterSize
 	if !cfg.Permament {
 		opts.HasBloomFilterSize = 0
 	}

repo/config/datastore.go

@@ -15,9 +15,10 @@ type Datastore struct {
 	StorageGCWatermark int64  // in percentage to multiply on StorageMax
 	GCPeriod           string // in ns, us, ms, s, m, h
 
-	Params     *json.RawMessage
-	NoSync     bool
-	HashOnRead bool
+	Params          *json.RawMessage
+	NoSync          bool
+	HashOnRead      bool
+	BloomFilterSize int
 }
 
 func (d *Datastore) ParamData() []byte {

repo/config/init.go

@@ -85,6 +85,7 @@ func datastoreConfig() (Datastore, error) {
 		StorageGCWatermark: 90, // 90%
 		GCPeriod:           "1h",
 		HashOnRead:         false,
+		BloomFilterSize:    0,
 	}, nil
 }