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123 lines
6.3 KiB
ReStructuredText
123 lines
6.3 KiB
ReStructuredText
Sprockets InfluxDB
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==================
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Buffering InfluxDB client and mixin for Tornado applications
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|Version| |Status| |Coverage| |License|
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Installation
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------------
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``sprockets-influxdb`` is available on the Python package index and is installable via pip:
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.. code:: bash
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pip install sprockets-influxdb
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Documentation
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-------------
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Documentation is available at `sprockets-influxdb.readthedocs.io <https://sprockets-influxdb.readthedocs.io>`_.
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Configuration
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-------------
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Configuration can be managed by specifying arguments when invoking
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``sprockets_influxdb.install`` or by using environment variables.
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For programmatic configuration, see the
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`sprockets_influxdb.install <https://sprockets-influxdb.readthedocs.io/en/latest/api.html#sprockets_influxdb.install>`_
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documentation.
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The following table details the environment variable configuration options.
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+---------------------------------+--------------------------------------------------+---------------+
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| Variable | Definition | Default |
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+=================================+==================================================+===============+
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| ``INFLUXDB_SCHEME`` | The URL request scheme for making HTTP requests | ``https`` |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_HOST`` | The InfluxDB server hostname | ``localhost`` |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_PORT`` | The InfluxDB server port | ``8086`` |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_USER`` | The InfluxDB server username | |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_PASSWORD`` | The InfluxDB server password | |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_ENABLED`` | Set to ``false`` to disable InfluxDB support | ``true`` |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_INTERVAL`` | How many milliseconds to wait before submitting | ``60000`` |
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| | measurements when the buffer has fewer than | |
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| | ``INFLUXDB_TRIGGER_SIZE`` measurements. | |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_MAX_BATCH_SIZE`` | Max # of measurements to submit in a batch | ``10000`` |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_MAX_BUFFER_SIZE`` | Limit of measurements in a buffer before new | ``25000`` |
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| | measurements are discarded. | |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_SAMPLE_PROBABILITY`` | A value that is >= 0 and <= 1.0 that specifies | ``1.0`` |
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| | the probability that a batch will be submitted | |
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| | to InfluxDB or dropped. | |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_TRIGGER_SIZE`` | The number of metrics in the buffer to trigger | ``60000`` |
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| | the submission of a batch. | |
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+---------------------------------+--------------------------------------------------+---------------+
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| ``INFLUXDB_TAG_HOSTNAME`` | Include the hostname as a tag in the measurement | ``true`` |
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+---------------------------------+--------------------------------------------------+---------------+
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Mixin Configuration
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^^^^^^^^^^^^^^^^^^^
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The ``sprockets_influxdb.InfluxDBMixin`` class will automatically tag the measurement if the
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``ENVIRONMENT`` environment variable is set with the environment that the application is running
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in. Finally, if you are using the
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`Sprockets Correlation Mixin <https://github.com/sprockets/sprockets.mixins.correlation>`_,
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measurements will automatically be tagged with the correlation ID for a request.
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Example
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-------
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In the following example, a measurement is added to the ``example`` InfluxDB database
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with the measurement name of ``measurement-name``. When the ``~tornado.ioloop.IOLoop``
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is started, the ``stop`` method is invoked, calling ``~sprockets_influxdb.shutdown``.
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``~sprockets_influxdb.shutdown`` ensures that all of the buffered metrics are
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written before the IOLoop is stopped.
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.. code:: python
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import logging
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import sprockets_influxdb as influxdb
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from tornado import ioloop
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logging.basicConfig(level=logging.INFO)
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io_loop = ioloop.IOLoop.current()
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influxdb.install(io_loop=io_loop)
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measurement = influxdb.Measurement('example', 'measurement-name')
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measurement.set_tag('foo', 'bar')
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measurement.set_field('baz', 1.05)
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influxdb.add_measurement(measurement)
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def stop():
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influxdb.shutdown()
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io_loop.stop()
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io_loop.add_callback(stop)
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io_loop.start()
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Requirements
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------------
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- `Tornado <https://tornadoweb.org>`_
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Version History
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---------------
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Available at https://sprockets-influxdb.readthedocs.org/en/latest/history.html
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.. |Version| image:: https://img.shields.io/pypi/v/sprockets-influxdb.svg?
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:target: http://badge.fury.io/py/sprockets-influxdb
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.. |Status| image:: https://img.shields.io/travis/sprockets/sprockets-influxdb.svg?
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:target: https://travis-ci.org/sprockets/sprockets-influxdb
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.. |Coverage| image:: https://img.shields.io/codecov/c/github/sprockets/sprockets-influxdb.svg?
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:target: https://codecov.io/github/sprockets/sprockets-influxdb?branch=master
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.. |License| image:: https://img.shields.io/pypi/l/sprockets-influxdb.svg?
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:target: https://sprockets-influxdb.readthedocs.org
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