riemann-client

============== riemann-client

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A Riemann <http://riemann.io/>_ client library and command line tool for Python. It supports UDP and TCP transports, queries, and all metric types. The client library aims to provide a simple, minimal API, and does not require direct interaction with protocol buffers. There is also a queued client that can queue or batch events and then send them in a single message.

• Source on GitHub <https://github.com/borntyping/python-riemann-client>_
• Documentation on Read the Docs <http://riemann-client.readthedocs.org/en/latest/>_
• Packages on PyPI <https://pypi.python.org/pypi/riemann-client>_

This project is no longer maintained. Please contact me by opening an issue on the GitHub project if you'd like to fork this repository and take over the riemann-client PyPI package.

Usage

As a command line tool::

riemann-client [--host HOST] [--port PORT] send [-s SERVICE] [-S STATE] [-m METRIC] [...] riemann-client [--host HOST] [--port PORT] query QUERY

The host and port used by the command line tool can also be set with the RIEMANN_HOST and RIEMANN_PORT environment variables. By default, localhost:5555 will be used.

As a library::

import riemann_client.client

with riemann_client.client.Client() as client: client.event(service="riemann-client", state="awesome") client.query("service = 'riemann-client'")

A more detailed example, using both a non-default transport and a queued client::

from riemann_client.transport import TCPTransport from riemann_client.client import QueuedClient

with QueuedClient(TCPTransport("localhost", 5555)) as client: client.event(service="one", metric_f=0.1) client.event(service="two", metric_f=0.2) client.flush()

The QueuedClient class modifies the event() method to add events to a queue instead of immediately sending them, and adds the flush() method to send the current event queue as a single message.

Installation

riemann-client requires Python 2.6 or above, and can be installed with pip install riemann-client. It will use Google's protobuf_ library when running under Python 2, and GreatFruitOmsk's protobuf-py3 fork when running under Python 3. Python 3 support is experimental and is likely to use Google's protobuf once it supports Python 3 fully.

.. _protobuf: https://pypi.python.org/pypi/protobuf .. _GreatFruitOmsk: https://github.com/GreatFruitOmsk .. _protobuf-py3: https://pypi.python.org/pypi/protobuf-py3

Requirements ^^^^^^^^^^^^

• click <http://click.pocoo.org/>_
• protobuf_ (when using Python 2)
• protobuf-py3_ (when using Python 3)

Testing (Linux/OSX)

Testing is done with tox_::

tox

.. _tox: https://tox.readthedocs.org/en/latest/

Changelog

Version 6.1.3 ^^^^^^^^^^^^^

• Added --echo/--no-echo option to the CLI.

Version 6.1.2 ^^^^^^^^^^^^^

• Fixed tests inclusion in tarball.

Version 6.1.1 ^^^^^^^^^^^^^

• Fixed socket error handling in riemann_client.client.AutoFlushingQueuedClient.

Version 6.1.0 ^^^^^^^^^^^^^

• riemann_client.client.AutoFlushingQueuedClient added.

Version 6.0.0 ^^^^^^^^^^^^^

• riemann_client.client.Client.create_dict only returns event fields that are set on the Protocol Buffers Event object
• riemann-client send ... only outputs fields that were set on the message

Version 5.1.0 ^^^^^^^^^^^^^

• Added Python 3 support
• Changed riemann_client.riemann_pb2 to wrap _py2 and _py3 modules
• Changed setup.py to dynamically select a protobuf dependency

Version 5.0.x ^^^^^^^^^^^^^

• Added API documentation (http://riemann-client.readthedocs.org/)
• Replaced argparse with click for an improved CLI
• Various command line parameters changed
• --event-host became --host
• --print was removed, send always prints the sent event
• Minor fixes to QueuedClient API
• UDPTransport.send returns None instead of NotImplemented

Version 4.2.x ^^^^^^^^^^^^^

• Added events() and send_events() methods to the client
• Added clear_queue() method to the queued client
• Add --timeout option for TCP based transports

Version 4.1.x ^^^^^^^^^^^^^

• Full Riemann protocol support (TLS transport, event attributes)
• Fixes for multiple broken features (--tags, --print)
• Raise errors when clients are used incorrectly
• Client displays errors from Riemann nicely
• Relaxed version requirements to fit CentOS 6 packages

Version 3.0.x ^^^^^^^^^^^^^

• Renamed module from riemann to riemann_client
• Command line interface was rewritten, and is now the only part of the library that respects the RIEMANN_HOST and RIEMANN_PORT environment variables
• Support for querying the Riemann index was added
• Internally, transports now define send instead of write, and TCPTransport.send returns Riemann's response message

Licence

riemann-client is licensed under the MIT Licence. The protocol buffer definition is sourced from the Riemann Java client, which is licensed under the Apache Licence_.

.. _MIT Licence: http://opensource.org/licenses/MIT .. _Riemann Java client: https://github.com/aphyr/riemann-java-client/blob/0c4a1a255be6f33069d7bb24d0cc7efb71bf4bc8/src/main/proto/riemann/proto.proto .. _Apache Licence: http://www.apache.org/licenses/LICENSE-2.0

Authors

riemann-client was written by Sam Clements <https://github.com/borntyping>, while working at DataSift <https://github.com/datasift>.

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