forked from TrueCloudLab/frostfs-api
270 lines
10 KiB
Markdown
270 lines
10 KiB
Markdown
# Protocol Documentation
|
|
<a name="top"></a>
|
|
|
|
## Table of Contents
|
|
|
|
- [state/service.proto](#state/service.proto)
|
|
- Services
|
|
- [Status](#state.Status)
|
|
|
|
- Messages
|
|
- [ChangeStateRequest](#state.ChangeStateRequest)
|
|
- [ChangeStateResponse](#state.ChangeStateResponse)
|
|
- [DumpRequest](#state.DumpRequest)
|
|
- [DumpResponse](#state.DumpResponse)
|
|
- [DumpVarsRequest](#state.DumpVarsRequest)
|
|
- [DumpVarsResponse](#state.DumpVarsResponse)
|
|
- [HealthRequest](#state.HealthRequest)
|
|
- [HealthResponse](#state.HealthResponse)
|
|
- [MetricsRequest](#state.MetricsRequest)
|
|
- [MetricsResponse](#state.MetricsResponse)
|
|
- [NetmapRequest](#state.NetmapRequest)
|
|
|
|
|
|
- [Scalar Value Types](#scalar-value-types)
|
|
|
|
|
|
|
|
<a name="state/service.proto"></a>
|
|
<p align="right"><a href="#top">Top</a></p>
|
|
|
|
## state/service.proto
|
|
|
|
|
|
|
|
|
|
<a name="state.Status"></a>
|
|
|
|
### Service "state.Status"
|
|
Status service provides node's healthcheck and status info.
|
|
TODO: decide how to describe auth and were contains permissions.
|
|
|
|
```
|
|
rpc Netmap(NetmapRequest) returns (.bootstrap.SpreadMap);
|
|
rpc Metrics(MetricsRequest) returns (MetricsResponse);
|
|
rpc HealthCheck(HealthRequest) returns (HealthResponse);
|
|
rpc DumpConfig(DumpRequest) returns (DumpResponse);
|
|
rpc DumpVars(DumpVarsRequest) returns (DumpVarsResponse);
|
|
rpc ChangeState(ChangeStateRequest) returns (ChangeStateResponse);
|
|
|
|
```
|
|
|
|
#### Method Netmap
|
|
|
|
Netmap request allows to receive current [bootstrap.SpreadMap](bootstrap.md#bootstrap.SpreadMap)
|
|
|
|
| Name | Input | Output |
|
|
| ---- | ----- | ------ |
|
|
| Netmap | [NetmapRequest](#state.NetmapRequest) | [.bootstrap.SpreadMap](#bootstrap.SpreadMap) |
|
|
#### Method Metrics
|
|
|
|
Metrics request allows to receive metrics in prometheus format
|
|
|
|
| Name | Input | Output |
|
|
| ---- | ----- | ------ |
|
|
| Metrics | [MetricsRequest](#state.MetricsRequest) | [MetricsResponse](#state.MetricsResponse) |
|
|
#### Method HealthCheck
|
|
|
|
HealthCheck request allows to check health status of the node.
|
|
If node unhealthy field Status would contains detailed info.
|
|
|
|
| Name | Input | Output |
|
|
| ---- | ----- | ------ |
|
|
| HealthCheck | [HealthRequest](#state.HealthRequest) | [HealthResponse](#state.HealthResponse) |
|
|
#### Method DumpConfig
|
|
|
|
DumpConfig request allows dumping settings for the current node.
|
|
To permit access, used server config options.
|
|
The request should be signed.
|
|
|
|
| Name | Input | Output |
|
|
| ---- | ----- | ------ |
|
|
| DumpConfig | [DumpRequest](#state.DumpRequest) | [DumpResponse](#state.DumpResponse) |
|
|
#### Method DumpVars
|
|
|
|
DumpVars returns debug variables for the current node.
|
|
To permit access, used server config options.
|
|
The request should be signed.
|
|
|
|
| Name | Input | Output |
|
|
| ---- | ----- | ------ |
|
|
| DumpVars | [DumpVarsRequest](#state.DumpVarsRequest) | [DumpVarsResponse](#state.DumpVarsResponse) |
|
|
#### Method ChangeState
|
|
|
|
ChangeState allows to change current node state of node.
|
|
To permit access, used server config options.
|
|
The request should be signed.
|
|
|
|
| Name | Input | Output |
|
|
| ---- | ----- | ------ |
|
|
| ChangeState | [ChangeStateRequest](#state.ChangeStateRequest) | [ChangeStateResponse](#state.ChangeStateResponse) |
|
|
<!-- end services -->
|
|
|
|
|
|
<a name="state.ChangeStateRequest"></a>
|
|
|
|
### Message ChangeStateRequest
|
|
ChangeStateRequest contains a new state of node.
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| state | [ChangeStateRequest.State](#state.ChangeStateRequest.State) | | State is a new state of node. |
|
|
| Meta | [service.RequestMetaHeader](#service.RequestMetaHeader) | | RequestMetaHeader contains information about request meta headers (should be embedded into message) |
|
|
| Verify | [service.RequestVerificationHeader](#service.RequestVerificationHeader) | | RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message) |
|
|
|
|
|
|
<a name="state.ChangeStateResponse"></a>
|
|
|
|
### Message ChangeStateResponse
|
|
ChangeStateResponse is an empty response, that returns when RPC invoked without errors.
|
|
|
|
|
|
|
|
<a name="state.DumpRequest"></a>
|
|
|
|
### Message DumpRequest
|
|
DumpRequest message to fetch current server config.
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| Meta | [service.RequestMetaHeader](#service.RequestMetaHeader) | | RequestMetaHeader contains information about request meta headers (should be embedded into message) |
|
|
| Verify | [service.RequestVerificationHeader](#service.RequestVerificationHeader) | | RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message) |
|
|
|
|
|
|
<a name="state.DumpResponse"></a>
|
|
|
|
### Message DumpResponse
|
|
DumpResponse message contains current server config.
|
|
Config stored in JSON encoded into slice of bytes.
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| Config | [bytes](#bytes) | | |
|
|
|
|
|
|
<a name="state.DumpVarsRequest"></a>
|
|
|
|
### Message DumpVarsRequest
|
|
DumpVarsRequest message to fetch current server debug variables.
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| Meta | [service.RequestMetaHeader](#service.RequestMetaHeader) | | RequestMetaHeader contains information about request meta headers (should be embedded into message) |
|
|
| Verify | [service.RequestVerificationHeader](#service.RequestVerificationHeader) | | RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message) |
|
|
|
|
|
|
<a name="state.DumpVarsResponse"></a>
|
|
|
|
### Message DumpVarsResponse
|
|
DumpVarsResponse message contains current server debug variables.
|
|
Variables stored in JSON encoded into slice of bytes.
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| Variables | [bytes](#bytes) | | |
|
|
|
|
|
|
<a name="state.HealthRequest"></a>
|
|
|
|
### Message HealthRequest
|
|
HealthRequest message to check current state
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| Meta | [service.RequestMetaHeader](#service.RequestMetaHeader) | | RequestMetaHeader contains information about request meta headers (should be embedded into message) |
|
|
| Verify | [service.RequestVerificationHeader](#service.RequestVerificationHeader) | | RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message) |
|
|
|
|
|
|
<a name="state.HealthResponse"></a>
|
|
|
|
### Message HealthResponse
|
|
HealthResponse message with current state
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| Healthy | [bool](#bool) | | Healthy is true when node alive and healthy |
|
|
| Status | [string](#string) | | Status contains detailed information about health status |
|
|
|
|
|
|
<a name="state.MetricsRequest"></a>
|
|
|
|
### Message MetricsRequest
|
|
MetricsRequest message to request node metrics
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| Meta | [service.RequestMetaHeader](#service.RequestMetaHeader) | | RequestMetaHeader contains information about request meta headers (should be embedded into message) |
|
|
| Verify | [service.RequestVerificationHeader](#service.RequestVerificationHeader) | | RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message) |
|
|
|
|
|
|
<a name="state.MetricsResponse"></a>
|
|
|
|
### Message MetricsResponse
|
|
MetricsResponse contains [][]byte,
|
|
every []byte is marshaled MetricFamily proto message
|
|
from github.com/prometheus/client_model/metrics.proto
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| Metrics | [bytes](#bytes) | repeated | |
|
|
|
|
|
|
<a name="state.NetmapRequest"></a>
|
|
|
|
### Message NetmapRequest
|
|
NetmapRequest message to request current node netmap
|
|
|
|
|
|
| Field | Type | Label | Description |
|
|
| ----- | ---- | ----- | ----------- |
|
|
| Meta | [service.RequestMetaHeader](#service.RequestMetaHeader) | | RequestMetaHeader contains information about request meta headers (should be embedded into message) |
|
|
| Verify | [service.RequestVerificationHeader](#service.RequestVerificationHeader) | | RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message) |
|
|
|
|
<!-- end messages -->
|
|
|
|
|
|
<a name="state.ChangeStateRequest.State"></a>
|
|
|
|
### ChangeStateRequest.State
|
|
|
|
|
|
| Name | Number | Description |
|
|
| ---- | ------ | ----------- |
|
|
| Unknown | 0 | Unknown is default value. Does nothing. |
|
|
| Online | 1 | Online used when need to set node to the online state. |
|
|
| Offline | 2 | Offline used when need to set node to the offline state. |
|
|
|
|
|
|
<!-- end enums -->
|
|
|
|
|
|
|
|
## Scalar Value Types
|
|
|
|
| .proto Type | Notes | C++ Type | Java Type | Python Type |
|
|
| ----------- | ----- | -------- | --------- | ----------- |
|
|
| <a name="double" /> double | | double | double | float |
|
|
| <a name="float" /> float | | float | float | float |
|
|
| <a name="int32" /> int32 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead. | int32 | int | int |
|
|
| <a name="int64" /> int64 | Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead. | int64 | long | int/long |
|
|
| <a name="uint32" /> uint32 | Uses variable-length encoding. | uint32 | int | int/long |
|
|
| <a name="uint64" /> uint64 | Uses variable-length encoding. | uint64 | long | int/long |
|
|
| <a name="sint32" /> sint32 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s. | int32 | int | int |
|
|
| <a name="sint64" /> sint64 | Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s. | int64 | long | int/long |
|
|
| <a name="fixed32" /> fixed32 | Always four bytes. More efficient than uint32 if values are often greater than 2^28. | uint32 | int | int |
|
|
| <a name="fixed64" /> fixed64 | Always eight bytes. More efficient than uint64 if values are often greater than 2^56. | uint64 | long | int/long |
|
|
| <a name="sfixed32" /> sfixed32 | Always four bytes. | int32 | int | int |
|
|
| <a name="sfixed64" /> sfixed64 | Always eight bytes. | int64 | long | int/long |
|
|
| <a name="bool" /> bool | | bool | boolean | boolean |
|
|
| <a name="string" /> string | A string must always contain UTF-8 encoded or 7-bit ASCII text. | string | String | str/unicode |
|
|
| <a name="bytes" /> bytes | May contain any arbitrary sequence of bytes. | string | ByteString | str |
|
|
|