Note
This repo will be made private on September 28, 2023. All code has been moved to the InfluxDB repo (see this commit).
InfluxDB IOx (short for Iron Oxide, pronounced InfluxDB "eye-ox") is the core of InfluxDB, an open source time series database. The name is in homage to Rust, the language this project is written in. It is built using Apache Arrow and DataFusion among other technologies. InfluxDB IOx aims to be:
- The core of InfluxDB; providing industry standard SQL, InfluxQL, and Flux
- An in-memory columnar store using object storage for persistence
- A fast analytic database for structured and semi-structured events (like logs and tracing data)
- A system for defining replication (synchronous, asynchronous, push and pull) and partitioning rules for InfluxDB time series data and tabular analytics data
- A system supporting real-time subscriptions
- A processor that can transform and do arbitrary computation on time series and event data as it arrives
- An analytic database built for data science, supporting Apache Arrow Flight for fast data transfer
Persistence is through Parquet files in object storage. It is a design goal to support integration with other big data systems through object storage and Parquet specifically.
For more details on the motivation behind the project and some of our goals, read through the InfluxDB IOx announcement blog post. If you prefer a video that covers a little bit of InfluxDB history and high level goals for InfluxDB IOx you can watch Paul Dix's announcement talk from InfluxDays NA 2020. For more details on the motivation behind the selection of Apache Arrow, Flight and Parquet, read this.
Our current goal is that the following platforms will be able to run InfluxDB IOx.
- Linux x86 (
x86_64-unknown-linux-gnu
) - Darwin x86 (
x86_64-apple-darwin
) - Darwin arm (
aarch64-apple-darwin
)
This project is in active development, which is why we're not producing builds yet.
If you would like contact the InfluxDB IOx developers, join the InfluxData Community Slack and look for the #influxdb_iox channel.
We're also hosting monthly tech talks and community office hours on the project on the 2nd Wednesday of the month at 8:30 AM Pacific Time.
- Install dependencies
- Clone the repository
- Configure the server
- Compiling and Running (You can also build a Docker image to run InfluxDB IOx.)
- Write and read data
- Use the CLI
- Use InfluxDB 2.0 API compatibility
- Run health checks
- Manually call the gRPC API
To compile and run InfluxDB IOx from source, you'll need the following:
The easiest way to install Rust is to use rustup
, a Rust version manager.
Follow the instructions for your operating system on the rustup
site.
rustup
will check the rust-toolchain
file and automatically install and use the correct Rust version for you.
You need some C/C++ compiler for some non-Rust dependencies like zstd
.
If you are building InfluxDB IOx on Linux then you will need to ensure you have installed the lld
LLVM linker.
Check if you have already installed it by running lld -version
.
lld -version
lld is a generic driver.
Invoke ld.lld (Unix), ld64.lld (macOS), lld-link (Windows), wasm-ld (WebAssembly) instead
If lld
is not already present, it can typically be installed with the system package manager.
Prost no longer bundles a protoc
binary.
For instructions on how to install protoc
, refer to the official gRPC documentation.
IOx should then build correctly.
The catalog is stored in Postgres (unless you're running in ephemeral mode). Postgres can be installed via Homebrew:
brew install postgresql
then follow the instructions for starting Postgres either at system startup or on-demand.
Clone this repository using git
.
If you use the git
command line, this looks like:
git clone git@github.com:influxdata/influxdb_iox.git
Then change into the directory containing the code:
cd influxdb_iox
The rest of these instructions assume you are in this directory.
InfluxDB IOx can be configured using either environment variables or a configuration file, making it suitable for deployment in containerized environments.
For a list of configuration options, run influxdb_iox --help
, after installing IOx.
For configuration options for specific subcommands, run influxdb_iox <subcommand> --help
.
To use a configuration file, use a .env
file in the working directory.
See the provided example configuration file.
To use the example configuration file, run:
cp docs/env.example .env
InfluxDB IOx is built using Cargo, Rust's package manager and build tool.
To compile for development, run:
cargo build
To compile for release and install the influxdb_iox
binary in your path (so you can run influxdb_iox
directly) do:
# from within the main `influxdb_iox` checkout
cargo install --path influxdb_iox
This creates a binary at target/debug/influxdb_iox
.
Building the Docker image requires:
- Docker 18.09+
- BuildKit
To enable BuildKit by default, set { "features": { "buildkit": true } }
in the Docker engine configuration,
or run docker build
withDOCKER_BUILDKIT=1
To build the Docker image:
DOCKER_BUILDKIT=1 docker build .
InfluxDB IOx supports testing backed by the local filesystem.
Note
This mode should NOT be used for production systems: it will have poor performance and limited tuning knobs are available.
To run IOx in local testing mode, use:
./target/debug/influxdb_iox
# shorthand for
./target/debug/influxdb_iox run all-in-one
This will start an "all-in-one" IOx server with the following configuration:
- File backed catalog (sqlite), object store, and write ahead log (wal) stored under
<HOMEDIR>/.influxdb_iox
- HTTP
v2
api server on port8080
, querier gRPC server on port8082
and several ports for other internal services.
You can also change the configuration in limited ways, such as choosing a different data directory:
./target/debug/influxdb_iox run all-in-one --data-dir=/tmp/iox_data
Rather than building and running the binary in target
, you can also compile and run with one
command:
cargo run -- run all-in-one
To compile for performance testing, build in release mode then use the binary in target/release
:
cargo build --release
./target/release/influxdb_iox run all-in-one
You can also compile and run in release mode with one step:
cargo run --release -- run all-in-one
You can run tests using:
cargo test --all
See [docs/testing.md] for more information
Data can be written to InfluxDB IOx by sending line protocol format to the /api/v2/write
endpoint or using the CLI.
For example, assuming you are running in local mode, this command will send data in the test_fixtures/lineproto/metrics.lp
file to the company_sensors
namespace.
./target/debug/influxdb_iox -vv write company_sensors test_fixtures/lineproto/metrics.lp --host http://localhost:8080
Note that --host http://localhost:8080
is required as the /v2/api
endpoint is hosted on port 8080
while the default is the querier gRPC port 8082
.
To query the data stored in the company_sensors
namespace:
./target/debug/influxdb_iox query company_sensors "SELECT * FROM cpu LIMIT 10"
InfluxDB IOx is packaged as a binary with commands to start the IOx server, as well as a CLI interface for interacting with and configuring such servers.
The CLI itself is documented via built-in help which you can access by running influxdb_iox --help
InfluxDB IOx allows seamless interoperability with InfluxDB 2.0.
Where InfluxDB 2.0 stores data in organizations and buckets,
InfluxDB IOx stores data in namespaces.
IOx maps organization
and bucket
pairs to namespaces with the two parts separated by an underscore (_
):
organization_bucket
.
Here's an example using curl
to send data into the company_sensors
namespace using the InfluxDB 2.0 /api/v2/write
API:
curl -v "http://127.0.0.1:8080/api/v2/write?org=company&bucket=sensors" --data-binary @test_fixtures/lineproto/metrics.lp
The HTTP API exposes a healthcheck endpoint at /health
$ curl http://127.0.0.1:8080/health
OK
The gRPC API implements the gRPC Health Checking Protocol.
This can be tested with grpc-health-probe
:
$ grpc_health_probe -addr 127.0.0.1:8082 -service influxdata.platform.storage.Storage
status: SERVING
To manually invoke one of the gRPC APIs, use a gRPC CLI client such as grpcurl.
Because the gRPC server library in IOx doesn't provide service reflection, you need to pass the IOx .proto
files to your client
when making requests.
After you install grpcurl, you can use the ./scripts/grpcurl
wrapper script to make requests that use the .proto
files for you--for example:
Use the list
command to list gRPC API services:
./scripts/grpcurl -plaintext 127.0.0.1:8082 list
google.longrunning.Operations
grpc.health.v1.Health
influxdata.iox.authz.v1.IoxAuthorizerService
influxdata.iox.catalog.v1.CatalogService
influxdata.iox.compactor.v1.CompactionService
influxdata.iox.delete.v1.DeleteService
influxdata.iox.ingester.v1.PartitionBufferService
influxdata.iox.ingester.v1.PersistService
influxdata.iox.ingester.v1.ReplicationService
influxdata.iox.ingester.v1.WriteInfoService
influxdata.iox.ingester.v1.WriteService
influxdata.iox.namespace.v1.NamespaceService
influxdata.iox.object_store.v1.ObjectStoreService
influxdata.iox.schema.v1.SchemaService
influxdata.platform.storage.IOxTesting
influxdata.platform.storage.Storage
Use the describe
command to view methods for a service:
./scripts/grpcurl -plaintext 127.0.0.1:8082 describe influxdata.iox.namespace.v1.NamespaceService
service NamespaceService {
...
rpc GetNamespaces ( .influxdata.iox.namespace.v1.GetNamespacesRequest ) returns ( .influxdata.iox.namespace.v1.GetNamespacesResponse );
...
}
Invoke a method:
./scripts/grpcurl -plaintext 127.0.0.1:8082 influxdata.iox.namespace.v1.NamespaceService.GetNamespaces
{
"namespaces": [
{
"id": "1",
"name": "company_sensors"
}
]
}
We welcome community contributions from anyone!
Read our Contributing Guide for instructions on how to run tests and how to make your first contribution.
There are a variety of technical documents describing various parts of IOx in the docs directory.