fluent-logger
A Python logging handler for Fluentd event collector
Decision gist · record as of 2026-08-14
Yes, if you are already running Fluentd or Fluent Bit and need a straightforward Python client to send structured events. The package is stable, has low install friction, and integrates cleanly with Python's logging module. The dormant maintenance status is not a blocker for stable use, but verify compatibility with your Fluentd/Fluent Bit version and monitor the repository for security updates.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires a running Fluentd or Fluent Bit daemon listening on the configured host and port (default localhost:24224).
- Low friction installation with a single runtime dependency (msgpack).
- Maintenance is dormant—last release was 2024-06-06 and no commits since 2024-06-17—but the package is marked Production/Stable and has been actively maintained since 2011.
License · maintenance · safety
(unclear) — Licensed under Apache License 2.0 per the raw license text. License treatment is marked unclear, so verify the SPDX classification matches your compliance requirements before use in proprietary or restricted contexts.
last release 2024-06-06 (799 days) · last repo commit 2024-06-17 · 457 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 2,255,102 downloads/mo, #3,186 on PyPI
Alternatives
Verify before relying
pip install fluent-logger
from fluent import sender
logger = sender.FluentSender('app', host='localhost', port=24224)
logger.emit('follow', {'from': 'userA', 'to': 'userB'})
logger.close()- Whether the dormant maintenance status (no commits since June 2024) affects long-term compatibility with current Fluentd/Fluent Bit versions.
- Performance characteristics and throughput limits under high-volume event logging scenarios.
What it is and what it does
fluent-logger is a Python client library that sends structured event logs to Fluentd or Fluent Bit, which then handle reliable buffering, log forwarding, and centralized collection. It provides three interfaces: a direct FluentSender API for explicit event emission, an event-based wrapper for global sender setup, and a Python logging.Handler integration for use with the standard logging module. The library serializes events using msgpack and communicates over TCP to a Fluentd/Fluent Bit daemon, supporting both second and nanosecond timestamp precision.
The package is designed for applications generating high volumes of event logs (login, logout, purchase, follow events, etc.) where centralized analysis is valuable. It handles connection failures gracefully with optional buffer overflow handlers, allows custom log formatting, and supports asynchronous communication. The library requires Python 3.7 or later and depends only on msgpack for serialization.
Use it for
- Send application events (logins, purchases, user actions) to Fluentd for real-time analysis and dashboarding.
- Integrate Python logging output with Fluentd using the standard logging.Handler interface for structured log aggregation.
- Implement custom event buffering and overflow handling when Fluentd is temporarily unavailable.
- Collect nanosecond-precision timestamped events from Python services for high-resolution timing analysis.
- Forward application metrics and events to Fluent Bit on edge devices or resource-constrained environments.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are already running Fluentd or Fluent Bit and need a straightforward Python client to send structured events.
The package is stable, has low install friction, and integrates cleanly with Python's logging module. The dormant maintenance status is not a blocker for stable use, but verify compatibility with your Fluentd/Fluent Bit version and monitor the repository for security updates.
Install
fluent-logger on PyPI
Before you install
Low friction installation with a single runtime dependency (msgpack). Maintenance is dormant—last release was 2024-06-06 and no commits since 2024-06-17—but the package is marked Production/Stable and has been actively maintained since 2011.
Requires a running Fluentd or Fluent Bit daemon listening on the configured host and port (default localhost:24224).
License in practice
Licensed under Apache License 2.0 per the raw license text. License treatment is marked unclear, so verify the SPDX classification matches your compliance requirements before use in proprietary or restricted contexts.
Quickstart
pip install fluent-logger
from fluent import sender
logger = sender.FluentSender('app', host='localhost', port=24224)
logger.emit('follow', {'from': 'userA', 'to': 'userB'})
logger.close()Verify before relying
- Whether the dormant maintenance status (no commits since June 2024) affects long-term compatibility with current Fluentd/Fluent Bit versions.
- Performance characteristics and throughput limits under high-volume event logging scenarios.
Package facts
| License | Not declared unclear |
| Python support | Supports the current Python release >=3.7 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagemsgpack |
| Maintenance | Dormant 799 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 2,255,102 / month, #3,186 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyTopic :: System :: Logging |
Evidence: fluent_logger-0.11.1-py3-none-any.whl
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