# FrostFS Storage node configuration file
This section contains detailed FrostFS Storage node configuration file description
including default config values and some tips to set up configurable values.
There are some custom types used for brevity:
1. `duration` -- string consisting of a number and a suffix. Suffix examples include `s` (seconds), `m` (minutes), `ms` (milliseconds).
2. `size` -- string consisting of a number and a suffix. Suffix examples include `b` (bytes, default), `k` (kibibytes), `m` (mebibytes), `g` (gibibytes).
3. `file mode` -- octal number. Usually, it starts with `0` and contain 3 digits, corresponding to file access permissions for user, group and others.
4. `public key` -- hex-encoded public key
5. `hash160` -- hex-encoded 20-byte hash of a deployed contract.
# Structure
| Section | Description |
|------------------------|---------------------------------------------------------------------|
| `logger` | [Logging parameters](#logger-section) |
| `pprof` | [PProf configuration](#pprof-section) |
| `prometheus` | [Prometheus metrics configuration](#prometheus-section) |
| `control` | [Control service configuration](#control-section) |
| `contracts` | [Override FrostFS contracts hashes](#contracts-section) |
| `morph` | [N3 blockchain client configuration](#morph-section) |
| `apiclient` | [FrostFS API client configuration](#apiclient-section) |
| `policer` | [Policer service configuration](#policer-section) |
| `replicator` | [Replicator service configuration](#replicator-section) |
| `storage` | [Storage engine configuration](#storage-section) |
| `runtime` | [Runtime configuration](#runtime-section) |
| `audit` | [Audit configuration](#audit-section) |
# `control` section
```yaml
control:
authorized_keys:
- 035839e45d472a3b7769a2a1bd7d54c4ccd4943c3b40f547870e83a8fcbfb3ce11
- 028f42cfcb74499d7b15b35d9bff260a1c8d27de4f446a627406a382d8961486d6
grpc:
endpoint: 127.0.0.1:8090
```
| Parameter | Type | Default value | Description |
|-------------------|----------------|---------------|----------------------------------------------------------------------------------|
| `authorized_keys` | `[]public key` | empty | List of public keys which are used to authorize requests to the control service. |
| `grpc.endpoint` | `string` | empty | Address that control service listener binds to. |
# `grpc` section
```yaml
grpc:
- endpoint: localhost:8080
tls:
enabled: true
certificate: /path/to/cert.pem
key: /path/to/key.pem
- endpoint: internal.ip:8080
- endpoint: external.ip:8080
tls:
enabled: true
use_insecure_crypto: true
```
Contains an array of gRPC endpoint configurations. The following table describes the format of each
element.
| Parameter | Type | Default value | Description |
|---------------------------|-------------------------------|---------------|---------------------------------------------------------------------------|
| `endpoint` | `[]string` | empty | Address that service listener binds to. |
| `tls` | [TLS config](#tls-subsection) | | Address that control service listener binds to. |
## `tls` subsection
| Parameter | Type | Default value | Description |
|-----------------------|----------|---------------|---------------------------------------------------------------------------|
| `enabled` | `bool` | `false` | Address that control service listener binds to. |
| `certificate` | `string` | | Path to the TLS certificate. |
| `key` | `string` | | Path to the key. |
| `use_insecure_crypto` | `bool` | `false` | If true, ciphers considered insecure by Go stdlib are allowed to be used. |
# `pprof` section
Contains configuration for the `pprof` profiler.
| Parameter | Type | Default value | Description |
|--------------------|-----------------------------------|---------------|-----------------------------------------|
| `enabled` | `bool` | `false` | Flag to enable the service. |
| `address` | `string` | | Address that service listener binds to. |
| `shutdown_timeout` | `duration` | `30s` | Time to wait for a graceful shutdown. |
| `debug` | [Debug config](#debug-subsection) | | Optional profiles configuration |
## `debug` subsection
Contains optional profiles configuration.
| Parameter | Type | Default value | Description |
|--------------|-------|---------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `block_rate` | `int` | `0` | Controls the block profiler. Non-positive values disable profiler reports. For more information: https://pkg.go.dev/runtime@go1.20.3#SetBlockProfileRate. |
| `mutex_rate` | `int` | `0` | Controls the mutex profiler. Non-positive values disable profiler reports. For more information: https://pkg.go.dev/runtime@go1.20.3#SetMutexProfileFraction. |
# `prometheus` section
Contains configuration for the `prometheus` metrics service.
| Parameter | Type | Default value | Description |
|--------------------|------------|---------------|-----------------------------------------|
| `enabled` | `bool` | `false` | Flag to enable the service. |
| `address` | `string` | | Address that service listener binds to. |
| `shutdown_timeout` | `duration` | `30s` | Time to wait for a graceful shutdown. |
# `logger` section
Contains logger parameters.
```yaml
logger:
level: info
```
| Parameter | Type | Default value | Description |
|-----------|----------|---------------|---------------------------------------------------------------------------------------------------|
| `level` | `string` | `info` | Logging level.
Possible values: `debug`, `info`, `warn`, `error`, `dpanic`, `panic`, `fatal` |
# `contracts` section
Contains override values for FrostFS side-chain contract hashes. Most of the time contract
hashes are fetched from the NNS contract, so this section can be omitted.
```yaml
contracts:
balance: 5263abba1abedbf79bb57f3e40b50b4425d2d6cd
container: 5d084790d7aa36cea7b53fe897380dab11d2cd3c
netmap: 0cce9e948dca43a6b592efe59ddb4ecb89bdd9ca
proxy: ad7c6b55b737b696e5c82c85445040964a03e97f
```
| Parameter | Type | Default value | Description |
|--------------|-----------|---------------|---------------------------|
| `balance` | `hash160` | | Balance contract hash. |
| `container` | `hash160` | | Container contract hash. |
| `netmap` | `hash160` | | Netmap contract hash. |
# `morph` section
```yaml
morph:
dial_timeout: 30s
cache_ttl: 15s
ape_chain_cache_size: 10000
rpc_endpoint:
- address: wss://rpc1.morph.frostfs.info:40341/ws
priority: 1
- address: wss://rpc2.morph.frostfs.info:40341/ws
priority: 2
switch_interval: 2m
```
| Parameter | Type | Default value | Description |
| ---------------------- | --------------------------------------------------------- | ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `dial_timeout` | `duration` | `5s` | Timeout for dialing connections to N3 RPCs. |
| `cache_ttl` | `duration` | Morph block time | Sidechain cache TTL value (min interval between similar calls).
Negative value disables caching.
Cached entities: containers, container lists, eACL tables. |
| `rpc_endpoint` | list of [endpoint descriptions](#rpc_endpoint-subsection) | | Array of endpoint descriptions. |
| `switch_interval` | `duration` | `2m` | Time interval between the attempts to connect to the highest priority RPC node if the connection is not established yet. |
| `ape_chain_cache_size` | `int` | `10000` | Size of the morph cache for APE chains. |
## `rpc_endpoint` subsection
| Parameter | Type | Default value | Description |
|------------|----------|---------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `address` | `string` | | _WebSocket_ N3 endpoint. |
| `priority` | `int` | `1` | Priority of an endpoint. Endpoint with a higher priority (lower configuration value) has more chance of being used. Endpoints with equal priority are iterated over randomly; a negative priority is interpreted as `1`. |
# `storage` section
Local storage engine configuration.
| Parameter | Type | Default value | Description |
|----------------------------|-----------------------------------|---------------|------------------------------------------------------------------------------------------------------------------|
| `shard_pool_size` | `int` | `20` | Pool size for shard workers. Limits the amount of concurrent `PUT` operations on each shard. |
| `shard_ro_error_threshold` | `int` | `0` | Maximum amount of storage errors to encounter before shard automatically moves to `Degraded` or `ReadOnly` mode. |
| `low_mem` | `bool` | `false` | Reduce memory consumption by reducing performance. |
| `shard` | [Shard config](#shard-subsection) | | Configuration for separate shards. |
## `shard` subsection
Contains configuration for each shard. Keys must be consecutive numbers starting from zero.
`default` subsection has the same format and specifies defaults for missing values.
The following table describes configuration for each shard.
| Parameter | Type | Default value | Description |
| ------------------------------------------------ | ------------------------------------------- | ------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `compress` | `bool` | `false` | Flag to enable compression. |
| `compression_exclude_content_types` | `[]string` | | List of content-types to disable compression for. Content-type is taken from `Content-Type` object attribute. Each element can contain a star `*` as a first (last) character, which matches any prefix (suffix). |
| `compression_estimate_compressibility` | `bool` | `false` | If `true`, then noramalized compressibility estimation is used to decide compress data or not. |
| `compression_estimate_compressibility_threshold` | `float` | `0.1` | Normilized compressibility estimate threshold: data will compress if estimation if greater than this value. |
| `mode` | `string` | `read-write` | Shard Mode.
Possible values: `read-write`, `read-only`, `degraded`, `degraded-read-only`, `disabled` |
| `resync_metabase` | `bool` | `false` | Flag to enable metabase resync on start. |
| `resync_metabase_worker_count` | `int` | `1000` | Count of concurrent workers to resync metabase. |
| `writecache` | [Writecache config](#writecache-subsection) | | Write-cache configuration. |
| `metabase` | [Metabase config](#metabase-subsection) | | Metabase configuration. |
| `blobstor` | [Blobstor config](#blobstor-subsection) | | Blobstor configuration. |
| `small_object_size` | `size` | `1M` | Maximum size of an object stored in blobovnicza tree. |
| `gc` | [GC config](#gc-subsection) | | GC configuration. |
### `blobstor` subsection
Contains a list of substorages each with it's own type.
Currently only 2 types are supported: `fstree` and `blobovnicza`.
```yaml
blobstor:
- type: blobovnicza
path: /path/to/blobstor
depth: 1
width: 4
- type: fstree
path: /path/to/blobstor/blobovnicza
perm: 0644
size: 4194304
depth: 1
width: 4
opened_cache_capacity: 50
opened_cache_ttl: 5m
opened_cache_exp_interval: 15s
```
#### Common options for sub-storages
| 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. |
#### `fstree` 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. |
| `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. |
| `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. |
| `opened_cache_exp_interval` | `duration` | `15s` | Cache cleanup interval for expired blobovnicza's. |
| `init_worker_count` | `int` | `5` | Maximum number of concurrent initialization workers. |
| `rebuild_drop_timeout` | `duration` | `10s` | Timeout before drop empty blobovnicza file during rebuild. |
### `gc` subsection
Contains garbage-collection service configuration. It iterates over the blobstor and removes object the node no longer needs.
```yaml
gc:
remover_batch_size: 200
remover_sleep_interval: 5m
expired_collector_batch_size: 500
expired_collector_worker_count: 5
```
| Parameter | Type | Default value | Description |
|-----------------------------------|------------|---------------|----------------------------------------------------------|
| `remover_batch_size` | `int` | `100` | Amount of objects to grab in a single batch. |
| `remover_sleep_interval` | `duration` | `1m` | Time to sleep between iterations. |
| `expired_collector_batch_size` | `int` | `500` | Max amount of expired objects to grab in a single batch. |
| `expired_collector_worker_count` | `int` | `5` | Max amount of concurrent expired objects workers. |
### `metabase` subsection
```yaml
metabase:
path: /path/to/meta.db
perm: 0644
max_batch_size: 200
max_batch_delay: 20ms
```
| Parameter | Type | Default value | Description |
|-------------------|------------|---------------|------------------------------------------------------------------------|
| `path` | `string` | | Path to the metabase file. |
| `perm` | file mode | `0660` | Permissions to set for the database file. |
| `max_batch_size` | `int` | `1000` | Maximum amount of write operations to perform in a single transaction. |
| `max_batch_delay` | `duration` | `10ms` | Maximum delay before a batch starts. |
### `writecache` subsection
```yaml
writecache:
enabled: true
path: /path/to/writecache
capacity: 4294967296
small_object_size: 16384
max_object_size: 134217728
flush_worker_count: 30
```
| Parameter | Type | Default value | Description |
|----------------------|------------|---------------|-------------------------------------------------------------------------------------------------------------------------------|
| `path` | `string` | | Path to the metabase file. |
| `capacity` | `size` | `1G` | Approximate maximum size of the writecache. If the writecache is full, objects are written to the blobstor directly. |
| `max_object_count` | `int` | unrestricted | Approximate maximum objects count in the writecache. If the writecache is full, objects are written to the blobstor directly. |
| `small_object_size` | `size` | `32K` | Maximum object size for "small" objects. This objects are stored in a key-value database instead of a file-system. |
| `max_object_size` | `size` | `64M` | Maximum object size allowed to be stored in the writecache. |
| `flush_worker_count` | `int` | `20` | Amount of background workers that move data from the writecache to the blobstor. |
| `max_batch_size` | `int` | `1000` | Maximum amount of small object `PUT` operations to perform in a single transaction. |
| `max_batch_delay` | `duration` | `10ms` | Maximum delay before a batch starts. |
# `node` section
```yaml
node:
wallet:
path: /path/to/wallet.json
address: NcpJzXcSDrh5CCizf4K9Ro6w4t59J5LKzz
password: password
addresses:
- grpc://external.ip:8082
attribute:
- "Price:11"
- "UN-LOCODE:RU MSK"
- "key:value"
relay: false
persistent_sessions:
path: /sessions
persistent_state:
path: /state
```
| Parameter | Type | Default value | Description |
|-----------------------|---------------------------------------------------------------|---------------|-------------------------------------------------------------------------|
| `key` | `string` | | Path to the binary-encoded private key. |
| `wallet` | [Wallet config](#wallet-subsection) | | Wallet configuration. Has no effect if `key` is provided. |
| `addresses` | `[]string` | | Addresses advertised in the netmap. |
| `attribute` | `[]string` | | Node attributes as a list of key-value pairs in `:` format. |
| `relay` | `bool` | | Enable relay mode. |
| `persistent_sessions` | [Persistent sessions config](#persistent_sessions-subsection) | | Persistent session token store configuration. |
| `persistent_state` | [Persistent state config](#persistent_state-subsection) | | Persistent state configuration. |
## `wallet` subsection
N3 wallet configuration.
| Parameter | Type | Default value | Description |
|------------|----------|---------------|------------------------------|
| `path` | `string` | | Path to the wallet file. |
| `address` | `string` | | Wallet address to use. |
| `password` | `string` | | Password to open the wallet. |
## `persistent_sessions` subsection
Contains persistent session token store configuration. By default sessions do not persist between restarts.
| Parameter | Type | Default value | Description |
|-----------|----------|---------------|-----------------------|
| `path` | `string` | | Path to the database. |
## `persistent_state` subsection
Configures persistent storage for auxiliary information, such as last seen block height.
It is used to correctly handle node restarts or crashes.
| Parameter | Type | Default value | Description |
|-----------|----------|------------------------|------------------------|
| `path` | `string` | `.frostfs-storage-state` | Path to the database. |
# `apiclient` section
Configuration for the FrostFS API client used for communication with other FrostFS nodes.
```yaml
apiclient:
dial_timeout: 15s
stream_timeout: 20s
reconnect_timeout: 30s
```
| Parameter | Type | Default value | Description |
|-------------------|----------|---------------|-----------------------------------------------------------------------|
| dial_timeout | duration | `5s` | Timeout for dialing connections to other storage or inner ring nodes. |
| stream_timeout | duration | `15s` | Timeout for individual operations in a streaming RPC. |
| reconnect_timeout | duration | `30s` | Time to wait before reconnecting to a failed node. |
# `policer` section
Configuration for the Policer service. It ensures that object is stored according to the intended policy.
```yaml
policer:
head_timeout: 15s
```
| Parameter | Type | Default value | Description |
|----------------|------------|---------------|----------------------------------------------|
| `head_timeout` | `duration` | `5s` | Timeout for performing the `HEAD` operation. |
# `replicator` section
Configuration for the Replicator service.
```yaml
replicator:
put_timeout: 15s
pool_size: 10
```
| Parameter | Type | Default value | Description |
|---------------|------------|----------------------------------------|---------------------------------------------|
| `put_timeout` | `duration` | `5s` | Timeout for performing the `PUT` operation. |
| `pool_size` | `int` | Equal to `object.put.remote_pool_size` | Maximum amount of concurrent replications. |
# `object` section
Contains object-service related parameters.
```yaml
object:
put:
remote_pool_size: 100
```
| Parameter | Type | Default value | Description |
|-----------------------------|-------|---------------|------------------------------------------------------------------------------------------------|
| `delete.tombstone_lifetime` | `int` | `5` | Tombstone lifetime for removed objects in epochs. |
| `put.remote_pool_size` | `int` | `10` | Max pool size for performing remote `PUT` operations. Used by Policer and Replicator services. |
| `put.local_pool_size` | `int` | `10` | Max pool size for performing local `PUT` operations. Used by Policer and Replicator services. |
# `runtime` section
Contains runtime parameters.
```yaml
runtime:
soft_memory_limit: 1GB
```
| Parameter | Type | Default value | Description |
|---------------------|--------|---------------|--------------------------------------------------------------------------|
| `soft_memory_limit` | `size` | 0 | Soft memory limit for the runtime. Zero or no value stands for no limit. If `GOMEMLIMIT` environment variable is set, the value from the configuration file will be ignored. |
# `audit` section
Contains audit parameters.
```yaml
audit:
enabled: true
```
| Parameter | Type | Default value | Description |
|---------------------|--------|---------------|---------------------------------------------------|
| `soft_memory_limit` | `bool` | false | If `true` then audit event logs will be recorded. |