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# FrostFS Storage node configuration file
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This section contains detailed FrostFS Storage node configuration file description
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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
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| 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 ) |
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| `audit` | [Audit configuration ](#audit-section ) |
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# `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:
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enabled: true
certificate: /path/to/cert.pem
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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.
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| 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.
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| 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. |
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# `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.< br /> Possible values: `debug` , `info` , `warn` , `error` , `dpanic` , `panic` , `fatal` |
# `contracts` section
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Contains override values for FrostFS side-chain contract hashes. Most of the time contract
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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:
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dial_timeout: 30s
cache_ttl: 15s
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ape_chain_cache_size: 10000
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rpc_endpoint:
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- address: wss://rpc1.morph.frostfs.info:40341/ws
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priority: 1
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- address: wss://rpc2.morph.frostfs.info:40341/ws
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priority: 2
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switch_interval: 2m
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```
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| 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).< br /> Negative value disables caching.< br /> 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. |
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## `rpc_endpoint` subsection
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| 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` . |
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# `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. |
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| `low_mem` | `bool` | `false` | Reduce memory consumption by reducing performance. |
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| `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.
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| Parameter | Type | Default value | Description |
| ------------------------------------------------ | ------------------------------------------- | ------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `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). |
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| `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. |
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| `mode` | `string` | `read-write` | Shard Mode.< br /> Possible values: `read-write` , `read-only` , `degraded` , `degraded-read-only` , `disabled` |
| `resync_metabase` | `bool` | `false` | Flag to enable metabase resync on start. |
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| `resync_metabase_worker_count` | `int` | `1000` | Count of concurrent workers to resync metabase. |
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| `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. |
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### `blobstor` subsection
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Contains a list of substorages each with it's own type.
Currently only 2 types are supported: `fstree` and `blobovnicza` .
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```yaml
blobstor:
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- 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
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opened_cache_ttl: 5m
opened_cache_exp_interval: 15s
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```
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#### Common options for sub-storages
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| 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. |
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#### `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
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| 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. |
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### `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
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expired_collector_batch_size: 500
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expired_collector_worker_count: 5
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```
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| 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. |
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| `expired_collector_worker_count` | `int` | `5` | Max amount of concurrent expired objects workers. |
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### `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
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flush_worker_count: 30
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page_size: '4k'
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```
| Parameter | Type | Default value | Description |
|----------------------|------------|---------------|----------------------------------------------------------------------------------------------------------------------|
| `path` | `string` | | Path to the metabase file. |
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| `capacity` | `size` | unrestricted | Approximate maximum size of the writecache. If the writecache is full, objects are written to the blobstor directly. |
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| `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. |
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| `flush_worker_count` | `int` | `20` | Amount of background workers that move data from the writecache to the blobstor. |
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| `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. |
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| `page_size` | `size` | `0` | Page size overrides the default OS page size for small objects storage. Does not affect the existing storage. |
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# `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 `<key>:<value>` 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 |
|-----------|----------|------------------------|------------------------|
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| `path` | `string` | `.frostfs-storage-state` | Path to the database. |
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# `apiclient` section
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Configuration for the FrostFS API client used for communication with other FrostFS nodes.
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```yaml
apiclient:
dial_timeout: 15s
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stream_timeout: 20s
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reconnect_timeout: 30s
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```
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| 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. |
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# `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
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pool_size: 10
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```
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| Parameter | Type | Default value | Description |
|---------------|------------|----------------------------------------|---------------------------------------------|
| `put_timeout` | `duration` | `5s` | Timeout for performing the `PUT` operation. |
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| `pool_size` | `int` | Equal to `object.put.remote_pool_size` | Maximum amount of concurrent replications. |
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# `object` section
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Contains object-service related parameters.
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```yaml
object:
put:
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remote_pool_size: 100
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```
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| Parameter | Type | Default value | Description |
|-----------------------------|-------|---------------|------------------------------------------------------------------------------------------------|
| `delete.tombstone_lifetime` | `int` | `5` | Tombstone lifetime for removed objects in epochs. |
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| `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. |
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# `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. |
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# `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. |
