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:
duration
-- string consisting of a number and a suffix. Suffix examples include s
(seconds), m
(minutes), ms
(milliseconds).
size
-- string consisting of a number and a suffix. Suffix examples include b
(bytes, default), k
(kibibytes), m
(mebibytes), g
(gibibytes).
file mode
-- octal number. Usually, it starts with 0
and contain 3 digits, corresponding to file access permissions for user, group and others.
public key
-- hex-encoded public key
hash160
-- hex-encoded 20-byte hash of a deployed contract.
Structure
control
section
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
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
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.
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.
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.
contracts :
balance : 5263abba1abedbf79bb57f3e40b50b4425d2d6cd
container : 5d084790d7aa36cea7b53fe897380dab11d2cd3c
netmap : 0cce9e948dca43a6b592efe59ddb4ecb89bdd9ca
proxy : ad7c6b55b737b696e5c82c85445040964a03e97f
Parameter
Type
Default value
Description
audit
hash160
Audit contract hash.
balance
hash160
Balance contract hash.
container
hash160
Container contract hash.
netmap
hash160
Netmap contract hash.
morph
section
morph :
dial_timeout : 30s
cache_ttl : 15s
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
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.
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.
shard
Shard config
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).
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.
writecache
Writecache config
Write-cache configuration.
metabase
Metabase config
Metabase configuration.
blobstor
Blobstor config
Blobstor configuration.
small_object_size
size
1M
Maximum size of an object stored in blobovnicza tree.
gc
GC config
GC configuration.
blobstor
subsection
Contains a list of substorages each with it's own type.
Currently only 2 types are supported: fstree
and blobovnicza
.
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
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.
gc
subsection
Contains garbage-collection service configuration. It iterates over the blobstor and removes object the node no longer needs.
gc :
remover_batch_size : 200
remover_sleep_interval : 5m
expired_collector_batch_size : 500
expired_collector_workers_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_workers_count
int
5
Max amount of concurrent expired objects workers.
metabase
subsection
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
writecache :
enabled : true
path : /path/to/writecache
capacity : 4294967296
small_object_size : 16384
max_object_size : 134217728
workers_number : 30
Parameter
Type
Default value
Description
path
string
Path to the metabase file.
capacity
size
unrestricted
Approximate maximum size of 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.
workers_number
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
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
notification :
enabled : true
endpoint : tls://localhost:4222
timeout : 6s
default_topic : topic
certificate : /path/to/cert.pem
key : /path/to/key.pem
ca : /path/to/ca.pem
Parameter
Type
Default value
Description
key
string
Path to the binary-encoded private key.
wallet
Wallet config
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 session token store configuration.
persistent_state
Persistent state config
Persistent state configuration.
notification
Notification config
NATS 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.
notification
subsection
This is an advanced section, use with caution.
Parameter
Type
Default value
Description
enabled
bool
false
Flag to enable the service.
endpoint
string
NATS endpoint to connect to.
timeout
duration
5s
Timeout for the object notification operation.
default_topic
string
node's public key
Default topic to use if an object has no corresponding attribute.
certificate
string
Path to the client certificate.
key
string
Path to the client key.
ca
string
Override root CA used to verify server certificates.
apiclient
section
Configuration for the FrostFS API client used for communication with other FrostFS nodes.
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.
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.
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.pool_size_remote
Maximum amount of concurrent replications.
object
section
Contains object-service related parameters.
object :
put :
pool_size_remote : 100
Parameter
Type
Default value
Description
delete.tombstone_lifetime
int
5
Tombstone lifetime for removed objects in epochs.
put.pool_size_remote
int
10
Max pool size for performing remote PUT
operations. Used by Policer and Replicator services.
put.pool_size_local
int
10
Max pool size for performing local PUT
operations. Used by Policer and Replicator services.