aarifullin/frostfs-node
1
0
Fork 0
forked from TrueCloudLab/frostfs-node
Code Issues Pull requests Projects Releases Packages Wiki Activity

[#866] Use TTL for blobovnicza tree cache

Browse source 
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
This commit is contained in:
Anton Nikiforov 2023-12-18 12:47:32 +03:00 committed by Evgenii Stratonikov
parent be8f499b91
commit d9cbb16bd3
10 changed files with 55 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
cmd/frostfs-adm/internal/modules/storagecfg/config.go
View file

@ -61,6 +61,7 @@ storage:
depth: 1 # max depth of object tree storage in key-value DB
width: 4 # max width of object tree storage in key-value DB
opened_cache_capacity: 50 # maximum number of opened database files
opened_cache_ttl: 5m # ttl for opened database file
gc:
remover_batch_size: 200 # number of objects to be removed by the garbage collector

3
cmd/frostfs-node/config.go
View file

@ -185,6 +185,7 @@ type subStorageCfg struct {
width uint64
leafWidth uint64
openedCacheSize int
openedCacheTTL time.Duration
initWorkerCount int
initInAdvance bool
}
@ -305,6 +306,7 @@ func (a *applicationConfiguration) setShardStorageConfig(newConfig *shardCfg, ol
sCfg.width = sub.ShallowWidth()
sCfg.leafWidth = sub.LeafWidth()
sCfg.openedCacheSize = sub.OpenedCacheSize()
sCfg.openedCacheTTL = sub.OpenedCacheTTL()
sCfg.initWorkerCount = sub.InitWorkerCount()
sCfg.initInAdvance = sub.InitInAdvance()
case fstree.Type:
@ -898,6 +900,7 @@ func (c *cfg) getSubstorageOpts(shCfg shardCfg) []blobstor.SubStorage {
blobovniczatree.WithBlobovniczaShallowWidth(sRead.width),
blobovniczatree.WithBlobovniczaLeafWidth(sRead.leafWidth),
blobovniczatree.WithOpenedCacheSize(sRead.openedCacheSize),
blobovniczatree.WithOpenedCacheTTL(sRead.openedCacheTTL),
blobovniczatree.WithInitWorkerCount(sRead.initWorkerCount),
blobovniczatree.WithInitInAdvance(sRead.initInAdvance),
blobovniczatree.WithLogger(c.log),

21
cmd/frostfs-node/config/engine/shard/blobstor/blobovnicza/config.go
View file

@ -1,6 +1,8 @@
package blobovniczaconfig
import (
"time"
"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config"
boltdbconfig "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-node/config/engine/shard/boltdb"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/blobovniczatree"
@ -23,6 +25,9 @@ const (
// OpenedCacheSizeDefault is a default cache size of opened Blobovnicza's.
OpenedCacheSizeDefault = 16
// OpenedCacheTTLDefault is a default cache ttl of opened Blobovnicza's.
OpenedCacheTTLDefault = 0 // means expiring is off
// InitWorkerCountDefault is a default workers count to initialize Blobovnicza's.
InitWorkerCountDefault = 5
)
@ -101,6 +106,22 @@ func (x *Config) OpenedCacheSize() int {
return OpenedCacheSizeDefault
}
// OpenedCacheTTL returns the value of "opened_cache_ttl" config parameter.
//
// Returns OpenedCacheTTLDefault if the value is not a positive number.
func (x *Config) OpenedCacheTTL() time.Duration {
d := config.DurationSafe(
(*config.Config)(x),
"opened_cache_ttl",
)
if d > 0 {
return d
}
return OpenedCacheTTLDefault
}
// BoltDB returns config instance for querying bolt db specific parameters.
func (x *Config) BoltDB() *boltdbconfig.Config {
return (*boltdbconfig.Config)(x)

2
config/example/node.env
View file

@ -125,6 +125,7 @@ FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_SIZE=4194304
FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_DEPTH=1
FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_WIDTH=4
FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_OPENED_CACHE_CAPACITY=50
FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_OPENED_CACHE_TTL=5m
FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_LEAF_WIDTH=10
FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_INIT_WORKER_COUNT=10
FROSTFS_STORAGE_SHARD_0_BLOBSTOR_0_INIT_IN_ADVANCE=TRUE
@ -174,6 +175,7 @@ FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_SIZE=4194304
FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_DEPTH=1
FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_WIDTH=4
FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_OPENED_CACHE_CAPACITY=50
FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_OPENED_CACHE_TTL=5m
FROSTFS_STORAGE_SHARD_1_BLOBSTOR_0_LEAF_WIDTH=10
### FSTree config
FROSTFS_STORAGE_SHARD_1_BLOBSTOR_1_TYPE=fstree

2
config/example/node.json
View file

@ -173,6 +173,7 @@
"depth": 1,
"width": 4,
"opened_cache_capacity": 50,
"opened_cache_ttl": "5m",
"leaf_width": 10,
"init_worker_count": 10,
"init_in_advance": true
@ -226,6 +227,7 @@
"depth": 1,
"width": 4,
"opened_cache_capacity": 50,
"opened_cache_ttl": "5m",
"leaf_width": 10
},
{

1
config/example/node.yaml
View file

@ -150,6 +150,7 @@ storage:
depth: 1 # max depth of object tree storage in key-value DB
width: 4 # max width of object tree storage in key-value DB
opened_cache_capacity: 50 # maximum number of opened database files
opened_cache_ttl: 5m # ttl for opened database file
leaf_width: 10 # max count of key-value DB on leafs of object tree storage
- perm: 0644 # permissions for blobstor files(directories: +x for current user and group)
depth: 5 # max depth of object tree storage in FS

18
docs/storage-node-configuration.md
View file

@ -209,6 +209,7 @@ blobstor:
depth: 1
width: 4
opened_cache_capacity: 50
opened_cache_ttl: 5m
```
#### Common options for sub-storages
@ -225,14 +226,15 @@ blobstor:
| `depth` | `int` | `4` | File-system tree depth. |
#### `blobovnicza` type options
| Parameter | Type | Default value | Description |
|-------------------------|-----------|---------------|-------------------------------------------------------|
| `path` | `string` | | Path to the root of the blobstor. |
| `perm` | file mode | `0660` | Default permission for created files and directories. |
| `size` | `size` | `1 G` | Maximum size of a single blobovnicza |
| `depth` | `int` | `2` | Blobovnicza tree depth. |
| `width` | `int` | `16` | Blobovnicza tree width. |
| `opened_cache_capacity` | `int` | `16` | Maximum number of simultaneously opened blobovniczas. |
| Parameter | Type | Default value | Description |
|-------------------------|------------|---------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `path` | `string` | | Path to the root of the blobstor. |
| `perm` | file mode | `0660` | Default permission for created files and directories. |
| `size` | `size` | `1 G` | Maximum size of a single blobovnicza |
| `depth` | `int` | `2` | Blobovnicza tree depth. |
| `width` | `int` | `16` | Blobovnicza tree width. |
| `opened_cache_capacity` | `int` | `16` | Maximum number of simultaneously opened blobovniczas. |
| `opened_cache_ttl` | `duration` | `0` | TTL in cache for opened blobovniczas(disabled by default). In case of heavy random-read and 10 shards each with 10_000 databases and accessing 400 objects per-second we will access each db approximately once per ((10 * 10_000 / 400) = 250 seconds <= 300 seconds = 5 min). Also take in mind that in this scenario they will probably be closed earlier because of the cache capacity, so bigger values are likely to be of no use. |
### `gc` subsection

2
pkg/local_object_storage/blobstor/blobovniczatree/blobovnicza.go
View file

@ -87,7 +87,7 @@ func NewBlobovniczaTree(opts ...Option) (blz *Blobovniczas) {
blz.commondbManager = newDBManager(blz.rootPath, blz.blzOpts, blz.readOnly, blz.metrics.Blobovnicza(), blz.log)
blz.activeDBManager = newActiveDBManager(blz.commondbManager, blz.blzLeafWidth)
blz.dbCache = newDBCache(blz.openedCacheSize, blz.commondbManager)
blz.dbCache = newDBCache(blz.openedCacheSize, blz.openedCacheTTL, blz.commondbManager)
blz.deleteProtectedObjects = newAddressMap()
blz.dbFilesGuard = &sync.RWMutex{}
blz.rebuildGuard = &sync.RWMutex{}

13
pkg/local_object_storage/blobstor/blobovniczatree/cache.go
View file

@ -1,10 +1,11 @@
package blobovniczatree
import (
"fmt"
"sync"
"time"
utilSync "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/sync"
"github.com/hashicorp/golang-lru/v2/expirable"
"github.com/hashicorp/golang-lru/v2/simplelru"
)
@ -22,14 +23,10 @@ type dbCache struct {
dbManager *dbManager
}
func newDBCache(size int, dbManager *dbManager) *dbCache {
cache, err := simplelru.NewLRU[string, *sharedDB](size, func(_ string, evictedDB *sharedDB) {
func newDBCache(size int, ttl time.Duration, dbManager *dbManager) *dbCache {
cache := expirable.NewLRU[string, *sharedDB](size, func(_ string, evictedDB *sharedDB) {
evictedDB.Close()
})
if err != nil {
// occurs only if the size is not positive
panic(fmt.Errorf("could not create LRU cache of size %d: %w", size, err))
}
}, ttl)
return &dbCache{
cacheGuard: &sync.RWMutex{},
cache: cache,

9
pkg/local_object_storage/blobstor/blobovniczatree/option.go
View file

@ -16,6 +16,7 @@ type cfg struct {
readOnly bool
rootPath string
openedCacheSize int
openedCacheTTL time.Duration
blzShallowDepth uint64
blzShallowWidth uint64
blzLeafWidth uint64
@ -34,6 +35,7 @@ type Option func(*cfg)
const (
defaultPerm = 0o700
defaultOpenedCacheSize = 50
defaultOpenedCacheTTL = 0 // means expiring is off
defaultBlzShallowDepth = 2
defaultBlzShallowWidth = 16
defaultWaitBeforeDropDB = 10 * time.Second
@ -46,6 +48,7 @@ func initConfig(c *cfg) {
log: &logger.Logger{Logger: zap.L()},
perm: defaultPerm,
openedCacheSize: defaultOpenedCacheSize,
openedCacheTTL: defaultOpenedCacheTTL,
blzShallowDepth: defaultBlzShallowDepth,
blzShallowWidth: defaultBlzShallowWidth,
reportError: func(string, error) {},
@ -105,6 +108,12 @@ func WithOpenedCacheSize(sz int) Option {
}
}
func WithOpenedCacheTTL(ttl time.Duration) Option {
return func(c *cfg) {
c.openedCacheTTL = ttl
}
}
func WithObjectSizeLimit(sz uint64) Option {
return func(c *cfg) {
c.blzOpts = append(c.blzOpts, blobovnicza.WithObjectSizeLimit(sz))