feat(tvix/store/pathinfosvc): provide listing

This provides an additional method in the PathInfoService trait, as
well as an RPC method on the gRPC layer to list all PathInfo objects in
a PathInfoService.

Change-Id: I7378f6bbd334bd6ac4e9be92505bd099a1c2b19a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9216
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
This commit is contained in:
Florian Klink 2023-09-03 17:09:45 +03:00 committed by clbot
parent e41b5ae3f0
commit da9d706e0a
9 changed files with 310 additions and 41 deletions

View file

@ -96,6 +96,46 @@ type GetPathInfoRequest_ByOutputHash struct {
func (*GetPathInfoRequest_ByOutputHash) isGetPathInfoRequest_ByWhat() {}
// The parameters that can be used to lookup (multiple) PathInfo objects.
// Currently no filtering is possible, all objects are returned.
type ListPathInfoRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
}
func (x *ListPathInfoRequest) Reset() {
*x = ListPathInfoRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ListPathInfoRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ListPathInfoRequest) ProtoMessage() {}
func (x *ListPathInfoRequest) ProtoReflect() protoreflect.Message {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ListPathInfoRequest.ProtoReflect.Descriptor instead.
func (*ListPathInfoRequest) Descriptor() ([]byte, []int) {
return file_tvix_store_protos_rpc_pathinfo_proto_rawDescGZIP(), []int{1}
}
// CalculateNARResponse is the response returned by the CalculateNAR request.
//
// It contains the size of the NAR representation (in bytes), and the sha56
@ -114,7 +154,7 @@ type CalculateNARResponse struct {
func (x *CalculateNARResponse) Reset() {
*x = CalculateNARResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1]
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
@ -127,7 +167,7 @@ func (x *CalculateNARResponse) String() string {
func (*CalculateNARResponse) ProtoMessage() {}
func (x *CalculateNARResponse) ProtoReflect() protoreflect.Message {
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1]
mi := &file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
@ -140,7 +180,7 @@ func (x *CalculateNARResponse) ProtoReflect() protoreflect.Message {
// Deprecated: Use CalculateNARResponse.ProtoReflect.Descriptor instead.
func (*CalculateNARResponse) Descriptor() ([]byte, []int) {
return file_tvix_store_protos_rpc_pathinfo_proto_rawDescGZIP(), []int{1}
return file_tvix_store_protos_rpc_pathinfo_proto_rawDescGZIP(), []int{2}
}
func (x *CalculateNARResponse) GetNarSize() uint64 {
@ -170,28 +210,34 @@ var file_tvix_store_protos_rpc_pathinfo_proto_rawDesc = []byte{
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}
var (
@ -206,22 +252,25 @@ func file_tvix_store_protos_rpc_pathinfo_proto_rawDescGZIP() []byte {
return file_tvix_store_protos_rpc_pathinfo_proto_rawDescData
}
var file_tvix_store_protos_rpc_pathinfo_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_tvix_store_protos_rpc_pathinfo_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
var file_tvix_store_protos_rpc_pathinfo_proto_goTypes = []interface{}{
(*GetPathInfoRequest)(nil), // 0: tvix.store.v1.GetPathInfoRequest
(*CalculateNARResponse)(nil), // 1: tvix.store.v1.CalculateNARResponse
(*PathInfo)(nil), // 2: tvix.store.v1.PathInfo
(*Node)(nil), // 3: tvix.store.v1.Node
(*ListPathInfoRequest)(nil), // 1: tvix.store.v1.ListPathInfoRequest
(*CalculateNARResponse)(nil), // 2: tvix.store.v1.CalculateNARResponse
(*PathInfo)(nil), // 3: tvix.store.v1.PathInfo
(*Node)(nil), // 4: tvix.store.v1.Node
}
var file_tvix_store_protos_rpc_pathinfo_proto_depIdxs = []int32{
0, // 0: tvix.store.v1.PathInfoService.Get:input_type -> tvix.store.v1.GetPathInfoRequest
2, // 1: tvix.store.v1.PathInfoService.Put:input_type -> tvix.store.v1.PathInfo
3, // 2: tvix.store.v1.PathInfoService.CalculateNAR:input_type -> tvix.store.v1.Node
2, // 3: tvix.store.v1.PathInfoService.Get:output_type -> tvix.store.v1.PathInfo
2, // 4: tvix.store.v1.PathInfoService.Put:output_type -> tvix.store.v1.PathInfo
1, // 5: tvix.store.v1.PathInfoService.CalculateNAR:output_type -> tvix.store.v1.CalculateNARResponse
3, // [3:6] is the sub-list for method output_type
0, // [0:3] is the sub-list for method input_type
3, // 1: tvix.store.v1.PathInfoService.Put:input_type -> tvix.store.v1.PathInfo
4, // 2: tvix.store.v1.PathInfoService.CalculateNAR:input_type -> tvix.store.v1.Node
1, // 3: tvix.store.v1.PathInfoService.List:input_type -> tvix.store.v1.ListPathInfoRequest
3, // 4: tvix.store.v1.PathInfoService.Get:output_type -> tvix.store.v1.PathInfo
3, // 5: tvix.store.v1.PathInfoService.Put:output_type -> tvix.store.v1.PathInfo
2, // 6: tvix.store.v1.PathInfoService.CalculateNAR:output_type -> tvix.store.v1.CalculateNARResponse
3, // 7: tvix.store.v1.PathInfoService.List:output_type -> tvix.store.v1.PathInfo
4, // [4:8] is the sub-list for method output_type
0, // [0:4] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
@ -247,6 +296,18 @@ func file_tvix_store_protos_rpc_pathinfo_proto_init() {
}
}
file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ListPathInfoRequest); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_tvix_store_protos_rpc_pathinfo_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*CalculateNARResponse); i {
case 0:
return &v.state
@ -268,7 +329,7 @@ func file_tvix_store_protos_rpc_pathinfo_proto_init() {
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_tvix_store_protos_rpc_pathinfo_proto_rawDesc,
NumEnums: 0,
NumMessages: 2,
NumMessages: 3,
NumExtensions: 0,
NumServices: 1,
},

View file

@ -41,6 +41,10 @@ service PathInfoService {
// It can also be used to calculate arbitrary NAR hashes of output paths,
// in case a legacy Nix Binary Cache frontend is provided.
rpc CalculateNAR(Node) returns (CalculateNARResponse);
// Return a stream of PathInfo messages matching the criteria specified in
// ListPathInfoRequest.
rpc List(ListPathInfoRequest) returns (stream PathInfo);
}
// The parameters that can be used to lookup a (single) PathInfo object.
@ -55,6 +59,10 @@ message GetPathInfoRequest {
};
}
// The parameters that can be used to lookup (multiple) PathInfo objects.
// Currently no filtering is possible, all objects are returned.
message ListPathInfoRequest { }
// CalculateNARResponse is the response returned by the CalculateNAR request.
//
// It contains the size of the NAR representation (in bytes), and the sha56

View file

@ -25,6 +25,7 @@ const (
PathInfoService_Get_FullMethodName = "/tvix.store.v1.PathInfoService/Get"
PathInfoService_Put_FullMethodName = "/tvix.store.v1.PathInfoService/Put"
PathInfoService_CalculateNAR_FullMethodName = "/tvix.store.v1.PathInfoService/CalculateNAR"
PathInfoService_List_FullMethodName = "/tvix.store.v1.PathInfoService/List"
)
// PathInfoServiceClient is the client API for PathInfoService service.
@ -60,6 +61,9 @@ type PathInfoServiceClient interface {
// It can also be used to calculate arbitrary NAR hashes of output paths,
// in case a legacy Nix Binary Cache frontend is provided.
CalculateNAR(ctx context.Context, in *Node, opts ...grpc.CallOption) (*CalculateNARResponse, error)
// Return a stream of PathInfo messages matching the criteria specified in
// ListPathInfoRequest.
List(ctx context.Context, in *ListPathInfoRequest, opts ...grpc.CallOption) (PathInfoService_ListClient, error)
}
type pathInfoServiceClient struct {
@ -97,6 +101,38 @@ func (c *pathInfoServiceClient) CalculateNAR(ctx context.Context, in *Node, opts
return out, nil
}
func (c *pathInfoServiceClient) List(ctx context.Context, in *ListPathInfoRequest, opts ...grpc.CallOption) (PathInfoService_ListClient, error) {
stream, err := c.cc.NewStream(ctx, &PathInfoService_ServiceDesc.Streams[0], PathInfoService_List_FullMethodName, opts...)
if err != nil {
return nil, err
}
x := &pathInfoServiceListClient{stream}
if err := x.ClientStream.SendMsg(in); err != nil {
return nil, err
}
if err := x.ClientStream.CloseSend(); err != nil {
return nil, err
}
return x, nil
}
type PathInfoService_ListClient interface {
Recv() (*PathInfo, error)
grpc.ClientStream
}
type pathInfoServiceListClient struct {
grpc.ClientStream
}
func (x *pathInfoServiceListClient) Recv() (*PathInfo, error) {
m := new(PathInfo)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// PathInfoServiceServer is the server API for PathInfoService service.
// All implementations must embed UnimplementedPathInfoServiceServer
// for forward compatibility
@ -130,6 +166,9 @@ type PathInfoServiceServer interface {
// It can also be used to calculate arbitrary NAR hashes of output paths,
// in case a legacy Nix Binary Cache frontend is provided.
CalculateNAR(context.Context, *Node) (*CalculateNARResponse, error)
// Return a stream of PathInfo messages matching the criteria specified in
// ListPathInfoRequest.
List(*ListPathInfoRequest, PathInfoService_ListServer) error
mustEmbedUnimplementedPathInfoServiceServer()
}
@ -146,6 +185,9 @@ func (UnimplementedPathInfoServiceServer) Put(context.Context, *PathInfo) (*Path
func (UnimplementedPathInfoServiceServer) CalculateNAR(context.Context, *Node) (*CalculateNARResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method CalculateNAR not implemented")
}
func (UnimplementedPathInfoServiceServer) List(*ListPathInfoRequest, PathInfoService_ListServer) error {
return status.Errorf(codes.Unimplemented, "method List not implemented")
}
func (UnimplementedPathInfoServiceServer) mustEmbedUnimplementedPathInfoServiceServer() {}
// UnsafePathInfoServiceServer may be embedded to opt out of forward compatibility for this service.
@ -213,6 +255,27 @@ func _PathInfoService_CalculateNAR_Handler(srv interface{}, ctx context.Context,
return interceptor(ctx, in, info, handler)
}
func _PathInfoService_List_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(ListPathInfoRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(PathInfoServiceServer).List(m, &pathInfoServiceListServer{stream})
}
type PathInfoService_ListServer interface {
Send(*PathInfo) error
grpc.ServerStream
}
type pathInfoServiceListServer struct {
grpc.ServerStream
}
func (x *pathInfoServiceListServer) Send(m *PathInfo) error {
return x.ServerStream.SendMsg(m)
}
// PathInfoService_ServiceDesc is the grpc.ServiceDesc for PathInfoService service.
// It's only intended for direct use with grpc.RegisterService,
// and not to be introspected or modified (even as a copy)
@ -233,6 +296,12 @@ var PathInfoService_ServiceDesc = grpc.ServiceDesc{
Handler: _PathInfoService_CalculateNAR_Handler,
},
},
Streams: []grpc.StreamDesc{},
Streams: []grpc.StreamDesc{
{
StreamName: "List",
Handler: _PathInfoService_List_Handler,
ServerStreams: true,
},
},
Metadata: "tvix/store/protos/rpc_pathinfo.proto",
}

View file

@ -1,8 +1,12 @@
use super::PathInfoService;
use crate::{blobservice::BlobService, directoryservice::DirectoryService, proto};
use crate::{
blobservice::BlobService,
directoryservice::DirectoryService,
proto::{self, ListPathInfoRequest},
};
use std::sync::Arc;
use tokio::net::UnixStream;
use tonic::{transport::Channel, Code, Status};
use tonic::{transport::Channel, Code, Status, Streaming};
/// Connects to a (remote) tvix-store PathInfoService over gRPC.
#[derive(Clone)]
@ -160,6 +164,62 @@ impl PathInfoService for GRPCPathInfoService {
Ok((resp.nar_size, nar_sha256))
}
fn list(&self) -> Box<dyn Iterator<Item = Result<proto::PathInfo, crate::Error>> + Send> {
// Get a new handle to the gRPC client.
let mut grpc_client = self.grpc_client.clone();
let task: tokio::task::JoinHandle<Result<_, Status>> =
self.tokio_handle.spawn(async move {
let s = grpc_client
.list(ListPathInfoRequest::default())
.await?
.into_inner();
Ok(s)
});
let stream = self.tokio_handle.block_on(task).unwrap().unwrap();
Box::new(StreamIterator::new(self.tokio_handle.clone(), stream))
}
}
pub struct StreamIterator {
tokio_handle: tokio::runtime::Handle,
stream: Streaming<proto::PathInfo>,
}
impl StreamIterator {
pub fn new(tokio_handle: tokio::runtime::Handle, stream: Streaming<proto::PathInfo>) -> Self {
Self {
tokio_handle,
stream,
}
}
}
impl Iterator for StreamIterator {
type Item = Result<proto::PathInfo, crate::Error>;
fn next(&mut self) -> Option<Self::Item> {
match self.tokio_handle.block_on(self.stream.message()) {
Ok(o) => match o {
Some(pathinfo) => {
// validate the pathinfo
if let Err(e) = pathinfo.validate() {
return Some(Err(crate::Error::StorageError(format!(
"pathinfo {:?} failed validation: {}",
pathinfo, e
))));
}
Some(Ok(pathinfo))
}
None => None,
},
Err(e) => Some(Err(crate::Error::StorageError(e.to_string()))),
}
}
}
#[cfg(test)]

View file

@ -85,6 +85,18 @@ impl PathInfoService for MemoryPathInfoService {
)
.map_err(|e| Error::StorageError(e.to_string()))
}
fn list(&self) -> Box<dyn Iterator<Item = Result<proto::PathInfo, Error>> + Send + '_> {
let db = self.db.read().unwrap();
// Copy all elements into a list.
// This is a bit ugly, because we can't have db escape the lifetime
// of this function, but elements need to be returned owned anyways, and this in-
// memory impl is only for testing purposes anyways.
let items: Vec<_> = db.iter().map(|(_k, v)| Ok(v.clone())).collect();
Box::new(items.into_iter())
}
}
#[cfg(test)]

View file

@ -39,4 +39,8 @@ pub trait PathInfoService: Send + Sync {
/// This can be used to calculate NAR-based output paths,
/// and implementations are encouraged to cache it.
fn calculate_nar(&self, root_node: &proto::node::Node) -> Result<(u64, [u8; 32]), Error>;
/// Iterate over all PathInfo objects in the store.
/// Implementations can decide to disallow listing.
fn list(&self) -> Box<dyn Iterator<Item = Result<proto::PathInfo, Error>> + Send + '_>;
}

View file

@ -136,6 +136,31 @@ impl PathInfoService for SledPathInfoService {
)
.map_err(|e| Error::StorageError(e.to_string()))
}
fn list(&self) -> Box<dyn Iterator<Item = Result<proto::PathInfo, Error>> + Send> {
Box::new(self.db.iter().values().map(|v| match v {
Ok(data) => {
// we retrieved some bytes
match proto::PathInfo::decode(&*data) {
Ok(path_info) => Ok(path_info),
Err(e) => {
warn!("failed to decode stored PathInfo: {}", e);
Err(Error::StorageError(format!(
"failed to decode stored PathInfo: {}",
e
)))
}
}
}
Err(e) => {
warn!("failed to retrieve PathInfo: {}", e);
Err(Error::StorageError(format!(
"failed to retrieve PathInfo: {}",
e
)))
}
}))
}
}
#[cfg(test)]

View file

@ -2,11 +2,14 @@ use crate::nar::RenderError;
use crate::pathinfoservice::PathInfoService;
use crate::proto;
use std::sync::Arc;
use tokio::task;
use tokio_stream::wrappers::ReceiverStream;
use tonic::{async_trait, Request, Response, Result, Status};
use tracing::{instrument, warn};
use tracing::{debug, instrument, warn};
pub struct GRPCPathInfoServiceWrapper {
path_info_service: Arc<dyn PathInfoService>,
// FUTUREWORK: allow exposing without allowing listing
}
impl From<Arc<dyn PathInfoService>> for GRPCPathInfoServiceWrapper {
@ -19,6 +22,8 @@ impl From<Arc<dyn PathInfoService>> for GRPCPathInfoServiceWrapper {
#[async_trait]
impl proto::path_info_service_server::PathInfoService for GRPCPathInfoServiceWrapper {
type ListStream = ReceiverStream<tonic::Result<proto::PathInfo, Status>>;
#[instrument(skip(self))]
async fn get(
&self,
@ -78,6 +83,29 @@ impl proto::path_info_service_server::PathInfoService for GRPCPathInfoServiceWra
}
}
}
#[instrument(skip(self))]
async fn list(
&self,
_request: Request<proto::ListPathInfoRequest>,
) -> Result<Response<Self::ListStream>, Status> {
let (tx, rx) = tokio::sync::mpsc::channel(5);
let path_info_service = self.path_info_service.clone();
let _task = task::spawn(async move {
for e in path_info_service.list() {
let res = e.map_err(|e| Status::internal(e.to_string()));
if tx.send(res).await.is_err() {
debug!("receiver dropped");
break;
}
}
});
let receiver_stream = ReceiverStream::new(rx);
Ok(Response::new(receiver_stream))
}
}
impl From<RenderError> for tonic::Status {

View file

@ -9,6 +9,7 @@ use crate::tests::utils::gen_blob_service;
use crate::tests::utils::gen_directory_service;
use crate::tests::utils::gen_pathinfo_service;
use std::sync::Arc;
use tokio_stream::wrappers::ReceiverStream;
use tonic::Request;
/// generates a GRPCPathInfoService out of blob, directory and pathinfo services.
@ -16,7 +17,8 @@ use tonic::Request;
/// We only interact with it via the PathInfo GRPC interface.
/// It uses the NonCachingNARCalculationService NARCalculationService to
/// calculate NARs.
fn gen_grpc_service() -> Arc<dyn GRPCPathInfoService> {
fn gen_grpc_service(
) -> Arc<dyn GRPCPathInfoService<ListStream = ReceiverStream<Result<PathInfo, tonic::Status>>>> {
let blob_service = gen_blob_service();
let directory_service = gen_directory_service();
Arc::new(GRPCPathInfoServiceWrapper::from(gen_pathinfo_service(