node: Support Peapod as BlobStor's sub-storage

Support `peapod` sub-storage type in BlobStor configuration.

Refs nspcc-dev#2453.

Signed-off-by: Leonard Lyubich <[email protected]>

CHANGELOG.md

@@ -3,6 +3,9 @@ Changelog for NeoFS Node
 
 ## [Unreleased]
 
+This is the last release to support the Blobovnicza tree. Starting with the next
+minor release, the component will be purged, so be prepared (see `Updating` section).
+
 ### Added
 - Embedded Neo contracts in `contracts` dir (#2391)
 - `dump-names` command for adm
@@ -84,6 +87,11 @@ Notice that existing Blobovnicza trees are untouched. Configuration is also
 updated, for example, `/etc/neofs/config.yaml` -> `/etc/neofs/config_peapod.yaml`.
 WARN: carefully review the updated config before using it in the application!
 
+To store small objects in more effective and simple sub-storage Peapod, replace
+`blobovnicza` sub-storage with the `peapod` one in `blobstor` config section.
+If storage node already stores some data, don't forget to make data migration
+described above.
+
 ## [0.37.0] - 2023-06-15 - Sogado
 
 ### Added

cmd/neofs-node/config.go

@@ -36,6 +36,7 @@ import (
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/blobovniczatree"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/fstree"
+	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/peapod"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine"
 	meta "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/metabase"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/pilorama"
@@ -264,6 +265,7 @@ func (a *applicationConfiguration) readConfig(c *config.Config) error {
 				sub := fstreeconfig.From((*config.Config)(storagesCfg[i]))
 				sCfg.depth = sub.Depth()
 				sCfg.noSync = sub.NoSync()
+			case peapod.Type:
 			default:
 				return fmt.Errorf("invalid storage type: %s", storagesCfg[i].Type())
 			}
@@ -732,6 +734,13 @@ func (c *cfg) shardOpts() []shardOptsWithID {
 						return true
 					},
 				})
+			case peapod.Type:
+				ss = append(ss, blobstor.SubStorage{
+					Storage: peapod.New(sRead.path, sRead.perm),
+					Policy: func(_ *objectSDK.Object, data []byte) bool {
+						return uint64(len(data)) < shCfg.smallSizeObjectLimit
+					},
+				})
 			default:
 				// should never happen, that has already
 				// been handled: when the config was read

cmd/neofs-node/config/engine/config_test.go

@@ -12,6 +12,7 @@ import (
 	fstreeconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard/blobstor/fstree"
 	piloramaconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard/pilorama"
 	configtest "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/test"
+	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/peapod"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/shard/mode"
 	"github.com/stretchr/testify/require"
 )
@@ -133,12 +134,9 @@ func TestEngineSection(t *testing.T) {
 
 				require.Equal(t, 2, len(ss))
 
-				blz := blobovniczaconfig.From((*config.Config)(ss[0]))
-				require.Equal(t, "tmp/1/blob/blobovnicza", ss[0].Path())
-				require.EqualValues(t, 4194304, blz.Size())
-				require.EqualValues(t, 1, blz.ShallowDepth())
-				require.EqualValues(t, 4, blz.ShallowWidth())
-				require.EqualValues(t, 50, blz.OpenedCacheSize())
+				require.Equal(t, "tmp/1/blob/peapod.db", ss[0].Path())
+				require.EqualValues(t, 0644, ss[0].Perm())
+				require.EqualValues(t, peapod.Type, ss[0].Type())
 
 				require.Equal(t, "tmp/1/blob", ss[1].Path())
 				require.EqualValues(t, 0644, ss[1].Perm())

cmd/neofs-node/config/engine/shard/blobstor/config.go

@@ -7,6 +7,7 @@ import (
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/engine/shard/blobstor/storage"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/blobovniczatree"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/fstree"
+	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/peapod"
 )
 
 // Config is a wrapper over the config section
@@ -28,7 +29,7 @@ func (x *Config) Storages() []*storage.Config {
 		switch typ {
 		case "":
 			return ss
-		case fstree.Type, blobovniczatree.Type:
+		case fstree.Type, blobovniczatree.Type, peapod.Type:
 			sub := storage.From((*config.Config)(x).Sub(strconv.Itoa(i)))
 			ss = append(ss, sub)
 		default:

cmd/neofs-node/validate.go

@@ -11,6 +11,7 @@ import (
 	treeconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/tree"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/blobovniczatree"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/fstree"
+	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor/peapod"
 	"go.uber.org/zap/zapcore"
 )
 
@@ -54,7 +55,7 @@ func validateConfig(c *config.Config) error {
 		}
 		for i := range blobstor {
 			switch blobstor[i].Type() {
-			case fstree.Type, blobovniczatree.Type:
+			case fstree.Type, blobovniczatree.Type, peapod.Type:
 			default:
 				// FIXME #1764 (@fyrchik): this line is currently unreachable,
 				//   because we panic in `sc.BlobStor().Storages()`.

config/example/node.env

@@ -152,12 +152,9 @@ NEOFS_STORAGE_SHARD_1_METABASE_MAX_BATCH_DELAY=20ms
 NEOFS_STORAGE_SHARD_1_COMPRESS=false
 NEOFS_STORAGE_SHARD_1_SMALL_OBJECT_SIZE=102400
 ### Blobovnicza config
-NEOFS_STORAGE_SHARD_1_BLOBSTOR_0_TYPE=blobovnicza
-NEOFS_STORAGE_SHARD_1_BLOBSTOR_0_PATH=tmp/1/blob/blobovnicza
-NEOFS_STORAGE_SHARD_1_BLOBSTOR_0_SIZE=4194304
-NEOFS_STORAGE_SHARD_1_BLOBSTOR_0_DEPTH=1
-NEOFS_STORAGE_SHARD_1_BLOBSTOR_0_WIDTH=4
-NEOFS_STORAGE_SHARD_1_BLOBSTOR_0_OPENED_CACHE_CAPACITY=50
+NEOFS_STORAGE_SHARD_1_BLOBSTOR_0_TYPE=peapod
+NEOFS_STORAGE_SHARD_1_BLOBSTOR_0_PATH=tmp/1/blob/peapod.db
+NEOFS_STORAGE_SHARD_1_BLOBSTOR_0_PERM=0644
 ### FSTree config
 NEOFS_STORAGE_SHARD_1_BLOBSTOR_1_TYPE=fstree
 NEOFS_STORAGE_SHARD_1_BLOBSTOR_1_PATH=tmp/1/blob

config/example/node.json

@@ -198,8 +198,8 @@
         "small_object_size": 102400,
         "blobstor": [
           {
-            "type": "blobovnicza",
-            "path": "tmp/1/blob/blobovnicza",
+            "type": "peapod",
+            "path": "tmp/1/blob/peapod.db",
             "perm": "0644",
             "size": 4194304,
             "depth": 1,

config/example/node.yaml

@@ -194,8 +194,8 @@ storage:
         path: tmp/1/meta  # metabase path
 
       blobstor:
-        - type: blobovnicza
-          path: tmp/1/blob/blobovnicza
+        - type: peapod
+          path: tmp/1/blob/peapod.db # path to Peapod database
         - type: fstree
           path: tmp/1/blob  # blobstor path
           no_sync: true

docs/storage-node-configuration.md

@@ -175,7 +175,7 @@ The following table describes configuration for each shard.
 ### `blobstor` subsection
 
 Contains a list of substorages each with it's own type.
-Currently only 2 types are supported: `fstree` and `blobovnicza`.
+Currently only 3 types are supported: `fstree`, `blobovnicza` and `peapod`.
 
 ```yaml
 blobstor:
@@ -215,6 +215,12 @@ blobstor:
 | `width`                 | `int`     | `16`          | Blobovnicza tree width.                               |
 | `opened_cache_capacity` | `int`     | `16`          | Maximum number of simultaneously opened blobovniczas. |
 
+#### `peapod` type options
+| Parameter           | Type      | Default value | Description                                           |
+|---------------------|-----------|---------------|-------------------------------------------------------|
+| `path`              | `string`  |               | Path to the Peapod database file.                     |
+| `perm`              | file mode | `0660`        | Default permission for created files and directories. |
+
 ### `gc` subsection
 
 Contains garbage-collection service configuration. It iterates over the blobstor and removes object the node no longer needs.