runtime

package
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 Go to latest Published: Jun 7, 2023 License: Apache-2.0 Imports: 21 Imported by: 0

README

runtime

The runtime a data infrastructure proxy and orchestrator – our data plane. It connects to data infrastructure and is or will be responsible for transpiling queries, parsing code artifacts, reconciling infra state, implementing connectors, enforcing (row-based) access policies, scheduling tasks, triggering alerts, and much more.

It's designed as a modular component that can be embedded in local applications (as it is into Rill Developer) or deployed stand-alone in a cloud environment.

Code structure

The base directory contains a Runtime type that represents the lifecycle of the runtime. It ties together the sub-directories:

  • client contains a Go client library for connecting to a runtime server.
  • compilers contains logic for parsing Rill projects (incomplete, currently mostly implemented in services instead).
  • connectors contains connector implementations.
  • drivers contains interfaces and drivers for external data infrastructure that the runtime interfaces with (like DuckDB and Druid).
  • pkg contains utility libraries.
  • queries contains pre-defined analytical queries that the runtime can serve (used for profiling and dashboards).
  • server contains a server that implements the runtime's APIs.
  • services contains logic for building and reconciling Rill projects.
  • testruntime contains helper functions for initializing a test runtime with test data.

How to test and run

You can start a stand-alone runtime server using the CLI:

go run ./cli runtime start

Ping the server to verify it's running:

go run ./cli runtime ping --base-url http://localhost:9090

You can run all tests using:

go test ./runtime/...

See details in web-local/README.md for info on how to run in development together with the local frontend.

Configuration

The runtime server is configured using environment variables parsed in cli/cmd/runtime/start.go. All environment variables have reasonable defaults suitable for local development. The current defaults are:

RILL_RUNTIME_HTTP_PORT="8080"
RILL_RUNTIME_GRPC_PORT="9090"
RILL_RUNTIME_LOG_LEVEL="info"
RILL_RUNTIME_METRICS_EXPORTER="prometheus"
RILL_RUNTIME_TRACES_EXPORTER=""
RILL_RUNTIME_ALLOWED_ORIGINS="*"
RILL_RUNTIME_METASTORE_DRIVER="sqlite"
RILL_RUNTIME_METASTORE_URL=":memory:"
RILL_RUNTIME_AUTH_ENABLE="false"
RILL_RUNTIME_AUTH_ISSUER_URL=""
RILL_RUNTIME_AUTH_AUDIENCE_URL=""
RILL_RUNTIME_CONNECTION_CACHE_SIZE="100"
RILL_RUNTIME_QUERY_CACHE_SIZE="10000"
RILL_RUNTIME_ALLOW_HOST_ACCESS="false"
RILL_RUNTIME_SAFE_SOURCE_REFRESH="true"
RILL_RUNTIME_GITHUB_APP_ID=""
RILL_RUNTIME_GITHUB_APP_PRIVATE_KEY=""

Adding a new endpoint

We define our APIs using gRPC and use gRPC-Gateway to map the RPCs to a RESTful API. See proto/README.md for details.

To add a new endpoint:

  1. Describe the endpoint in proto/rill/runtime/v1/api.proto
  2. Re-generate gRPC and OpenAPI interfaces by running make proto.generate
  3. Copy the new handler signature from the RuntimeServiceServer interface in proto/gen/rill/runtime/v1/api_grpc_pb.go
  4. Paste the handler signature and implement it in a relevant file in runtime/server/

Adding a new analytical query endpoint

  1. Add a new endpoint for the query by following the steps in the section above ("Adding a new endpoint")
  2. Implement the query in runtime/queries by following the instructions in runtime/queries/README.md

Example: Creating an instance and rehydrating from code artifacts

# Start runtime
go run ./runtime/cmd/main.go

# Create instance
curl --request POST --url http://localhost:8080/v1/instances --header 'Content-Type: application/json' \
  --data '{
    "instance_id": "default",
    "olap_driver": "duckdb",
    "olap_dsn": "test.db",
    "repo_driver": "file",
    "repo_dsn": "./examples/ad_bids",
    "embed_catalog": true
}'

# Apply code artifacts
curl --request POST --url http://localhost:8080/v1/instances/default/reconcile --header 'Content-Type: application/json'

# Query data
curl --request POST --url http://localhost:8080/v1/instances/default/query --header 'Content-Type: application/json' \
  --data '{ "sql": "select * from ad_bids limit 10" }'

# Query explore API
curl --request POST --url http://localhost:8080/v1/instances/default/queries/metrics-views/ad_bids_metrics/toplist/domain --header 'Content-Type: application/json' \
  --data '{
    "measure_names": ["measure_0"],
    "limit": 10,
    "sort": [{ "name": "measure_0", "ascending": false }]
}'

# Query profiling API
curl --request GET --url http://localhost:8080/v1/instances/default/null-count/ad_bids/publisher

# Get catalog info
curl --request GET --url http://localhost:8080/v1/instances/default/catalog

# Refresh source named "ad_bids_source"
curl --request POST --url http://localhost:8080/v1/instances/default/catalog/ad_bids_source/refresh

# Get available connectors
curl --request GET   --url http://localhost:8080/v1/connectors/meta

# List files in project
curl --request GET --url http://localhost:8080/v1/instances/default/files

# Fetch file in project
curl --request GET --url http://localhost:8080/v1/instances/default/files/-/models/ad_bids.sql

# Update file in project
curl --request POST --url http://localhost:8080/v1/instances/default/files/-/models/ad_bids.sql --header 'Content-Type: application/json' \
  --data '{ "blob": "select id, timestamp, publisher, domain, bid_price from ad_bids_source" }'

Using a DuckDB nightly build

The following steps apply for macOS, but a similar approach should work for Linux.

  1. Download the latest DuckDB nightly from Github from the "Artifacts" section on the newest workflow run here)
  2. Unzip the downloaded archive and copy the libduckdb.dylib file in the libduckdb-osx-universal folder to /usr/local/lib
  • You must use the command-line to copy the file. If you touch it using the Finder, macOS will quarantine it. To remove a quarantine, run: xattr -d com.apple.quarantine libduckdb.dylib.
  1. DuckDB usually does not support older file formats, so delete the stage.db and stage.db.wal files in your dev-project
  2. Add the flag -tags=duckdb_use_lib when running go run or go build to use the nightly build of DuckDB
  • If testing the local frontend, you need to temporarily set it in the dev-runtime script in package.json
  • For details, see Linking DuckDB

Note: DuckDB often makes breaking changes to its APIs, so you may encounter other errors when using a dev version of DuckDB.

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Options added in v0.16.0 

type Options struct {
	ConnectionCacheSize int
	MetastoreDriver     string
	MetastoreDSN        string
	QueryCacheSizeBytes int64
	AllowHostAccess     bool
	SafeSourceRefresh   bool
}

type Query added in v0.16.0 

type Query interface {
	// Key should return a cache key that uniquely identifies the query
	Key() string
	// Deps should return the source and model names that the query targets.
	// It's used to invalidate cached queries when the underlying data changes.
	Deps() []string
	// MarshalResult should return the query result and estimated cost in bytes for caching
	MarshalResult() *QueryResult
	// UnmarshalResult should populate a query with a cached result
	UnmarshalResult(v any) error
	// Resolve should execute the query against the instance's infra.
	// Error can be nil along with a nil result in general, i.e. when a model contains no rows aggregation results can be nil.
	Resolve(ctx context.Context, rt *Runtime, instanceID string, priority int) error
}

type QueryResult added in v0.26.0 

type QueryResult struct {
	Value any
	Bytes int64
}

type Runtime 

type Runtime struct {
	// contains filtered or unexported fields
}

func New 

func New(opts *Options, logger *zap.Logger) (*Runtime, error)

func (*Runtime) AllowHostAccess added in v0.27.0 

func (r *Runtime) AllowHostAccess() bool

func (*Runtime) Catalog added in v0.16.0 

func (r *Runtime) Catalog(ctx context.Context, instanceID string) (drivers.CatalogStore, error)

func (*Runtime) Close added in v0.18.0 

func (r *Runtime) Close() error

func (*Runtime) CreateInstance 

func (r *Runtime) CreateInstance(ctx context.Context, inst *drivers.Instance) error

func (*Runtime) DeleteFile added in v0.16.0 

func (r *Runtime) DeleteFile(ctx context.Context, instanceID, path string) error

func (*Runtime) DeleteInstance added in v0.16.0 

func (r *Runtime) DeleteInstance(ctx context.Context, instanceID string, dropDB bool) error

func (*Runtime) EditInstance added in v0.23.0 

func (r *Runtime) EditInstance(ctx context.Context, inst *drivers.Instance) error

EditInstance edits exisiting instance. Confirming to put api specs, it is expected to send entire existing instance data. The API compares and only evicts caches if drivers or dsn is changed. This is done to ensure that db handlers are not unnecessarily closed

func (*Runtime) FindInstance added in v0.16.0 

func (r *Runtime) FindInstance(ctx context.Context, instanceID string) (*drivers.Instance, error)

func (*Runtime) FindInstances added in v0.16.0 

func (r *Runtime) FindInstances(ctx context.Context) ([]*drivers.Instance, error)

func (*Runtime) GetCatalogEntry added in v0.16.0 

func (r *Runtime) GetCatalogEntry(ctx context.Context, instanceID, name string) (*drivers.CatalogEntry, error)

func (*Runtime) GetFile added in v0.16.0 

func (r *Runtime) GetFile(ctx context.Context, instanceID, path string) (string, time.Time, error)

func (*Runtime) ListCatalogEntries added in v0.16.0 

func (r *Runtime) ListCatalogEntries(ctx context.Context, instanceID string, t drivers.ObjectType) ([]*drivers.CatalogEntry, error)

func (*Runtime) ListFiles added in v0.16.0 

func (r *Runtime) ListFiles(ctx context.Context, instanceID, glob string) ([]string, error)

func (*Runtime) NewCatalogService added in v0.24.0 

func (r *Runtime) NewCatalogService(ctx context.Context, instanceID string) (*catalog.Service, error)

func (*Runtime) OLAP added in v0.16.0 

func (r *Runtime) OLAP(ctx context.Context, instanceID string) (drivers.OLAPStore, error)

func (*Runtime) PutFile added in v0.16.0 

func (r *Runtime) PutFile(ctx context.Context, instanceID, path string, blob io.Reader, create, createOnly bool) error

func (*Runtime) Query added in v0.16.0 

func (r *Runtime) Query(ctx context.Context, instanceID string, query Query, priority int) error

func (*Runtime) Reconcile added in v0.16.0 

func (r *Runtime) Reconcile(ctx context.Context, instanceID string, changedPaths, forcedPaths []string, dry, strict bool) (*catalog.ReconcileResult, error)

func (*Runtime) RefreshSource added in v0.16.0 

func (r *Runtime) RefreshSource(ctx context.Context, instanceID, name string) error

func (*Runtime) Registry added in v0.16.0 

func (r *Runtime) Registry() drivers.RegistryStore

func (*Runtime) RenameFile added in v0.16.0 

func (r *Runtime) RenameFile(ctx context.Context, instanceID, fromPath, toPath string) error

func (*Runtime) Repo added in v0.16.0 

func (r *Runtime) Repo(ctx context.Context, instanceID string) (drivers.RepoStore, error)

func (*Runtime) SyncExistingTables added in v0.16.0 

func (r *Runtime) SyncExistingTables(ctx context.Context, instanceID string) error

Source Files

View all Source files

Directories

Path Synopsis
compilers
rillv1beta
blob
gcs
https
localfile
s3
druid
duckdb
file
github
postgres
sqlite
pkg
arrayutil
container
dag
duration
Package duration copied as it is from github.com/senseyeio/duration
 Package duration copied as it is from github.com/senseyeio/duration
examples
fileutil
globutil
graceful
middleware
observability
pbutil
priorityqueue
sharedlibrary
singleflight
Package singleflight provides a duplicate function call suppression mechanism.
 Package singleflight provides a duplicate function call suppression mechanism.
auth
services
catalog
catalog/artifacts
catalog/artifacts/folder
catalog/artifacts/sql
catalog/artifacts/yaml
Package yaml reads and writes artifacts that exactly mirror the internal representation
 Package yaml reads and writes artifacts that exactly mirror the internal representation
catalog/migrator
catalog/migrator/metricsviews
catalog/migrator/models
catalog/migrator/sources
catalog/testutils

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