# ucbrise/confluo

Real-time Monitoring and Analysis of Data Streams

Repository: https://github.com/ucbrise/confluo
Canonical: https://ross.abutalabs.com/products/confluo
Homepage: https://ucbrise.github.io/confluo/
Language: C++
License: Apache-2.0
License Family: permissive
Topics: lock-free, log, atomic
Last push: 2022-05-20T20:55:41+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3872, "days_push": 1566, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1433, forks 200 (observed 2026-08-28T04:04:43.282243+00:00)

## What it is
Confluo is a C++ system for real-time monitoring and analysis of data streams, supporting high-throughput concurrent writes of millions of data points, millisecond online queries, and low-CPU ad-hoc queries. It runs as a server daemon with C++, Python, and Java client APIs, offering indexes, filters, aggregates, and triggers over Atomic MultiLogs.

## Use cases
- monitor millions of performance metrics in real time
- run millisecond-latency queries over streaming data
- install triggers that fire on aggregate thresholds like high latency
- ingest concurrent writes from multiple data streams
- run ad-hoc filters and aggregates with minimal CPU overhead
- store and query structured log records with indexes

## When to choose
- you need high-throughput stream ingestion with concurrent writers
- you want millisecond online queries plus ad-hoc analytics on the same data
- you need triggers and aggregates over streaming metrics
- you are on Linux or macOS and comfortable building C++ software

## When to avoid
- you need Windows support
- you want a managed or actively developed product with recent releases
- you need SQL or rich ecosystem integrations rather than a custom API
- your workload is small enough for a standard time-series database

## Facets
- artifact type: library
- maturity: maintenance
- function: streaming, monitoring, analytics, database, search-engine
- domain: analytics, big-data, monitoring, developer-tools
- platform: cpp, python, jvm, cli
- tags: time-series, lock-free, data-structures, stream-processing, triggers, atomic-multilog, data-engineering, real-time, linux, macos

## Member repositories
- ucbrise/confluo (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:43.282243+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:36:59.177522+00:00, confidence not recorded.
  - readme: https://github.com/ucbrise/confluo (fetched 2026-08-28T04:04:43.282243+00:00, sha c91ed6da4e13)
  - homepage: https://ucbrise.github.io/confluo/ (fetched 2026-08-29T11:48:05.138576+00:00, sha 90b1db11b81f)
- Data as of 2026-08-30T08:39:29.467469+00:00.