opensearch-logger
OpenSearch logging handler
Decision gist · record as of 2026-08-14
Yes. The package is production-stable (marked as such since 2021), has no known vulnerabilities, low install friction, and solves a clear problem—direct Python-to-OpenSearch logging without middleware. The aging maintenance status (366 days since release) is mitigated by a recent repository commit on 2025-08-13. Install it if you need to send Python logs to OpenSearch and want to avoid Fluentd or Logstash.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires an accessible OpenSearch instance; at least one connection parameter (e.g., hosts) must be provided to the handler constructor.
- Low install friction; depends only on opensearch-py.
- Marked as aging (366 days since last release), but repository is active with a recent commit on 2025-08-13 and no known vulnerabilities.
License · maintenance · safety
permissive license (permissive) — Apache License 2.0 (permissive). You may use, modify, and distribute this package freely in commercial and private projects, provided you include the license notice and state significant changes.
last release 2025-08-13 (366 days) · last repo commit 2025-08-13 · 28 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 154,558 downloads/mo, #10,850 on PyPI
Alternatives
Verify before relying
pip install opensearch-logger
import logging
from opensearch_logger import OpenSearchHandler
handler = OpenSearchHandler(
index_name="my-logs",
hosts=["https://localhost:9200"],
http_auth=("admin", "admin"),
use_ssl=True,
verify_certs=False
)
logger = logging.getLogger(__name__)
logger.addHandler(handler)
logger.info("Message indexed to OpenSearch")- Performance characteristics under high log volume or with large buffer sizes
- Compatibility with OpenSearch versions beyond 1.0 (stated as production-tested since OpenSearch 1.0 release)
What it is and what it does
opensearch-logger is a Python logging handler that integrates directly with OpenSearch, bypassing the need for log aggregation middleware like Fluentd or Logstash. It formats all log records according to the Elastic Common Schema (ECS) standard, making logs searchable and aggregatable in OpenSearch. The handler buffers log records and flushes them in batches, with configurable buffer size and flush frequency to balance throughput and latency.
The library has been in production use since OpenSearch 1.0 and supports modern Python versions (3.9 through 3.13). It integrates with Python's standard logging module, allowing you to add it as a handler to any logger and configure it via logging.config or Django settings. It supports multiple authentication methods including basic auth, AWS IAM, and Kerberos, and can index into either traditional indices with date-based rotation or OpenSearch data streams.
Use it for
- Centralize application logs from Python services directly into OpenSearch for real-time search and analysis without separate log aggregation infrastructure.
- Index structured log records with custom fields via the extra parameter to make application metrics searchable and aggregatable in OpenSearch.
- Configure logging via Django settings or logging.config to send application logs to OpenSearch alongside file or console handlers.
- Authenticate to AWS OpenSearch domains using IAM credentials or connect to Kerberos-protected OpenSearch clusters without proxy layers.
- Use data streams for log indexing to let OpenSearch manage index rollover automatically, simplifying operational overhead for high-volume logging.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The package is production-stable (marked as such since 2021), has no known vulnerabilities, low install friction, and solves a clear problem—direct Python-to-OpenSearch logging without middleware. The aging maintenance status (366 days since release) is mitigated by a recent repository commit on 2025-08-13. Install it if you need to send Python logs to OpenSearch and want to avoid Fluentd or Logstash.
Install
opensearch-logger on PyPI
Before you install
Low install friction; depends only on opensearch-py. Marked as aging (366 days since last release), but repository is active with a recent commit on 2025-08-13 and no known vulnerabilities.
Requires an accessible OpenSearch instance; at least one connection parameter (e.g., hosts) must be provided to the handler constructor.
License in practice
Apache License 2.0 (permissive). You may use, modify, and distribute this package freely in commercial and private projects, provided you include the license notice and state significant changes.
Quickstart
pip install opensearch-logger
import logging
from opensearch_logger import OpenSearchHandler
handler = OpenSearchHandler(
index_name="my-logs",
hosts=["https://localhost:9200"],
http_auth=("admin", "admin"),
use_ssl=True,
verify_certs=False
)
logger = logging.getLogger(__name__)
logger.addHandler(handler)
logger.info("Message indexed to OpenSearch")Verify before relying
- Performance characteristics under high log volume or with large buffer sizes
- Compatibility with OpenSearch versions beyond 1.0 (stated as production-tested since OpenSearch 1.0 release)
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packageopensearch-py |
| Maintenance | Aging 366 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 154,558 / month, #10,850 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 :: DevelopersLicense :: OSI Approved :: Apache Software LicenseProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.9Topic :: Internet :: Log AnalysisTopic :: Software Development :: LibrariesTopic :: System :: Logging |
Evidence: opensearch_logger-1.3.1-py3-none-any.whl
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See also CMRESHandler · opensearch-py · opensearch-dsl · ecs-logging · concurrent-log-handler · django-opensearch-dsl · python3-logstash · cloudwatch · elasticsearch-dbapi · opensearch-mcp-server-py