influxio 0.7.0

Import and export data into/from InfluxDB

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About

You can use influxio to import and export data into/from InfluxDB. It can be used both as a standalone program, and as a library.

influxio is, amongst others, based on the excellent dask, fsspec, influxdb-client, influx-line, line-protocol-parser, pandas, Polars, and SQLAlchemy packages.

Synopsis

# Export from API to database.
influxio copy \
    "http://example:token@localhost:8086/testdrive/demo" \
    "sqlite://export.sqlite?table=demo"

# Export from data directory to line protocol format.
influxio copy \
    "file:///path/to/influxdb/engine?bucket-id=372d1908eab801a6&measurement=demo" \
    "file://export.lp"

Quickstart

If you are in a hurry, and want to run influxio without any installation, just use the OCI image on Podman or Docker.

docker run --rm --network=host ghcr.io/daq-tools/influxio \
    influxio copy \
    "http://example:token@localhost:8086/testdrive/demo" \
    "crate://crate@localhost:4200/testdrive/demo"

Setup

Install influxio from PyPI.

pip install influxio

Usage

This section outlines some example invocations of influxio, both on the command line, and per library use. Other than the resources available from the web, testing data can be acquired from the repository’s testdata folder.

Prerequisites

For properly running some of the example invocations outlined below, you will need an InfluxDB and a CrateDB server. The easiest way to spin up those instances is to use Podman or Docker.

Please visit the docs/development.rst documentation to learn about how to spin up corresponding sandbox instances on your workstation.

Command line use

Help

influxio --help
influxio info
influxio copy --help

Import

Import data from different sources into InfluxDB Server.

# From test data to API.
# Choose one of dummy, mixed, dateindex, wide.
influxio copy \
    "testdata://dateindex/" \
    "http://example:token@localhost:8086/testdrive/demo"

# With selected amount of rows.
influxio copy \
    "testdata://dateindex/?rows=42" \
    "http://example:token@localhost:8086/testdrive/demo"

# With selected amount of rows and columns (only supported by certain test data sources).
influxio copy \
    "testdata://wide/?rows=42&columns=42" \
    "http://example:token@localhost:8086/testdrive/demo"

# From line protocol file to InfluxDB API.
influxio copy \
    "file://tests/testdata/basic.lp" \
    "http://example:token@localhost:8086/testdrive/demo"

# From line protocol file to InfluxDB API.
influxio copy \
    "https://github.com/influxdata/influxdb2-sample-data/raw/master/air-sensor-data/air-sensor-data.lp" \
    "http://example:token@localhost:8086/testdrive/demo"

Export from API

Export data from InfluxDB Server into different sinks.

# From API to database file.
influxio copy \
    "http://example:token@localhost:8086/testdrive/demo" \
    "sqlite:///export.sqlite?table=demo"

# From API to database server.
influxio copy \
    "http://example:token@localhost:8086/testdrive/demo" \
    "crate://crate@localhost:4200/testdrive/demo"

# From API to line protocol file.
influxio copy \
    "http://example:token@localhost:8086/testdrive/demo" \
    "file://export.lp"

# From API to line protocol on stdout.
influxio copy \
    "http://example:token@localhost:8086/testdrive/demo" \
    "file://-?format=lp"

Load from File

Load data from InfluxDB files into any SQL database supported by SQLAlchemy.

# From local line protocol file to SQLite.
influxio copy \
    "file://export.lp" \
    "sqlite:///export.sqlite?table=export"

# From local line protocol file to CrateDB.
influxio copy \
    "file://export.lp" \
    "crate://crate@localhost:4200/testdrive/demo"

# From remote line protocol file to SQLite.
influxio copy \
    "https://github.com/influxdata/influxdb2-sample-data/raw/master/air-sensor-data/air-sensor-data.lp" \
    "sqlite:///export.sqlite?table=air-sensor-data"

# From remote line protocol file to CrateDB.
influxio copy \
    "https://github.com/influxdata/influxdb2-sample-data/raw/master/air-sensor-data/air-sensor-data.lp" \
    "crate://crate@localhost:4200/testdrive/demo"

Export from Cloud to Cloud

# From InfluxDB Cloud to CrateDB Cloud.
influxio copy \
    "https://8e9ec869a91a3517:T268DVLDHD8AJsjzOEluu...Pic4A==@eu-central-1-1.aws.cloud2.influxdata.com/testdrive/demo" \
    "crate://admin:dZ,Y18*Z...7)[e-mail]:4200/testdrive/demo?ssl=true"

crash \
    --hosts 'https://admin:dZ,Y18*Z...7)[e-mail]:4200' \
    --command 'SELECT * FROM testdrive.demo;'

Export from data directory

# From InfluxDB data directory to line protocol file.
influxio copy \
    "file:///path/to/influxdb/engine?bucket-id=372d1908eab801a6&measurement=demo" \
    "file://export.lp"

# From InfluxDB data directory to line protocol file, compressed with gzip.
influxio copy \
    "file:///path/to/influxdb/engine?bucket-id=372d1908eab801a6&measurement=demo" \
    "file://export.lp.gz"

# From InfluxDB data directory to line protocol on stdout.
influxio copy \
    "file:///path/to/influxdb/engine?bucket-id=372d1908eab801a6&measurement=demo" \
    "file://-?format=lp"

OCI

OCI images are available on the GitHub Container Registry (GHCR). In order to run them on Podman or Docker, invoke:

docker run --rm --network=host ghcr.io/daq-tools/influxio \
    influxio copy \
    "http://example:token@localhost:8086/testdrive/demo" \
    "stdout://export.lp"

If you want to work with files on your filesystem, you will need to either mount the working directory into the container using the --volume option, or use the --interactive option to consume STDIN, like:

docker run --rm --volume=$(pwd):/data ghcr.io/daq-tools/influxio \
    influxio copy "file:///data/export.lp" "sqlite:///data/export.sqlite?table=export"

cat export.lp | \
docker run --rm --interactive --network=host ghcr.io/daq-tools/influxio \
    influxio copy "stdin://?format=lp" "crate://crate@localhost:4200/testdrive/export"

In order to always run the latest nightly development version, and to use a shortcut for that, this section outlines how to use an alias for influxio, and a variable for storing the input URL. It may be useful to save a few keystrokes on subsequent invocations.

docker pull ghcr.io/daq-tools/influxio:nightly
alias influxio="docker run --rm --interactive ghcr.io/daq-tools/influxio:nightly influxio"
SOURCE=https://github.com/daq-tools/influxio/raw/main/tests/testdata/basic.lp
TARGET=crate://crate@localhost:4200/testdrive/basic

influxio copy "${SOURCE}" "${TARGET}"

InfluxDB parameters

timeout

The network timeout value is specified in seconds, the default value is 60 seconds. Both details deviate from the standard default setting of the underlying InfluxDB client library, which uses milliseconds, and a default value of 10_000 milliseconds.

If you need to adjust this setting, add the parameter timeout to the InfluxDB URL like this:

influxio copy \
    "http://example:token@localhost:8086/testdrive/demo?timeout=300" \
    "crate://crate@localhost:4200/testdrive/demo"

CrateDB parameters

if-exists

When targeting the SQLAlchemy database interface, the target table will be created automatically, if it does not exist. The if-exists URL query parameter can be used to configure this behavior. The default value is fail.

• fail: Raise a ValueError.

• replace: Drop the table before inserting new values.

• append: Insert new values to the existing table.

Example usage:

influxio copy \
    "http://example:token@localhost:8086/testdrive/demo" \
    "crate://crate@localhost:4200/testdrive/demo?if-exists=replace"

Project information

Contribute

Contributions of all kinds are much very welcome, in order to make the software more solid.

For installing the project from source, please follow the development documentation.

Status

Breaking changes should be expected until a 1.0 release, so version pinning is recommended, especially when you use it as a library.

Prior art

There are a few other projects which are aiming at similar goals.

• InfluxDB Fetcher

• influxdb-write-to-postgresql (IW2PG)

• Outflux

Supported by

Special thanks to the people at JetBrains s.r.o. for supporting us with excellent development tooling.