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Project Description
# A Python structured logger for Fluentd


Many web/mobile applications generate huge amount of event logs (c,f. login, logout, purchase, follow, etc). To analyze these event logs could be really valuable for improving the service. However, the challenge is collecting these logs easily and reliably.

[Fluentd](http://github.com/fluent/fluentd) solves that problem by having: easy installation, small footprint, plugins, reliable buffering, log forwarding, etc.

**fluent-logger-python** is a Python library, to record the events from Python application.

## Requirements

* Python 2.6 or greater including 3.x

## Installation

This library is distributed as 'fluent-logger' python package. Please execute the following command to install it.

$ pip install fluent-logger

## Configuration

Fluentd daemon must be lauched with the following configuration:

<source>
type tcp
port 24224
</source>

<match app.**="">
type stdout
</match>

## Usage

### Event-Based Interface

First, you need to call logger.setup() to create global logger instance. This call needs to be called only once, at the beggining of the application for example.

By default, the logger assumes fluentd daemon is launched locally. You can also specify remote logger by passing the options.

from fluent import sender

# for local fluent
sender.setup('app')

# for remote fluent
sender.setup('app', host='host', port=24224)

Then, please create the events like this. This will send the event to fluent, with tag 'app.follow' and the attributes 'from' and 'to'.

from fluent import event

# send event to fluentd, with 'app.follow' tag
event.Event('follow', {
'from': 'userA',
'to': 'userB'
})

### Python logging.Handler interface

This client-library also has FluentHanler class for Python logging module.

import logging
from fluent import handler

logging.basicConfig(level=logging.INFO)
l = logging.getLogger('fluent.test')
l.addHandler(handler.FluentHandler('app.follow', host='host', port=24224))
l.info({
'from': 'userA',
'to': 'userB'
})

### Pyramid logging configuration

First, setup a fluent log formatter.
Note the different format of "format".

[formatter_fluent]
class = fluent.handler.FluentRecordFormatter
format =
levelname
name
#datefmt = %H:%M:%S (fluentd native date format is used instead)

Then, setup a fluent handler.

class = fluent.handler.FluentHandler
args = ("<your log="" tag="">",)
level = INFO
formatter = fluent

Finally, add the fluent handler to handler list.

[handlers]
keys = generic, fluent

## Contributors

Patches contributed by [those people](https://github.com/fluent/fluent-logger-python/contributors)

## License

Apache License, Version 2.0
Release History

Release History

0.0.3

This version

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0.0.2

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0.0.1

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Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
fluent-logger-pyramid-0.0.3.tar.gz (4.7 kB) Copy SHA256 Checksum SHA256 Source Apr 7, 2014

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