The Problem
Applications that need sub‑millisecond latency for caching, session storage, or real‑time analytics must manage a high‑throughput, in‑memory data store. Building, testing, and maintaining such a store from source can be error‑prone, especially when native dependencies (jemalloc, hiredis) and platform‑specific build flags are involved.
What This Does
The repository is a near‑up‑to‑date fork of the official Redis server (C implementation). Core server code lives in the root directory (redis.c, server.c, networking.c, etc.) and is built with the top‑level Makefile. Native extensions and third‑party libraries are vendored under deps/:
deps/hiredis/ – lightweight C client library, compiled via its own Makefile and CMakeLists. deps/jemalloc/ – memory allocator, built as part of the server build process. deps/fpconv/ – fast floating‑point conversion utilities.
Documentation (README.md, INSTALL, docs/) walks users through building on Linux, macOS, and Windows. CI pipelines (.github/workflows/ci.yml, codecov.yml) run automated builds and tests on multiple OSes.
How To Use It
Setup – Build the server and its bundled dependencies with a single make invocation. The top‑level Makefile pulls in the deps/Makefile which in turn builds jemalloc, hiredis, and hdrhistogram.
Clone the repo
git clone https://github.com/<your‑org>/redis.git cd redis
Build Redis (default target builds server and modules)
make -j$(nproc)
Configuration – Runtime options are supplied via the standard redis.conf file (generated from redis.conf.default in the repo). No environment‑specific files are hard‑coded; you can start the server with a custom config path:
./src/redis-server /path/to/redis.conf
Running – The executable produced by make is src/redis-server. A quick start is documented in README.md:
Start a development instance on the default port (6379) ./src/redis-server
For TLS-enabled deployments, see TLS.md and the --tls-port flag described in the same file.
Real‑World Use
A typical microservice that needs a fast cache would launch Redis as a side‑car container, then connect using the hiredis client (deps/hiredis/hiredis.h). Example snippet (C):
#include <hiredis/hiredis.h>
redisContext c = redisConnect("127.0.0.1", 6379); redisReply *r = redisCommand(c, "SET user:123 %s", jsonpayload); freeReplyObject(r); redisFree(c);
The same binary can be packaged in a Dockerfile (FROM alpine → COPY src/redis-server /usr/local/bin/) for production deployments.
Code Health & Issues
Low – Missing lockfile for .codespell – .codespell/requirements.txt lists a Python spell‑checker dependency without a requirements.lock; reproducible CI environments may vary. Low – Limited test coverage in repo – Only four test files are present (deps/hiredis/test.c, etc.). The upstream Redis test suite is extensive, but this fork does not expose it directly; CI still runs the upstream test matrix though. Low – No explicit license file at root – The repository includes LICENSE.txt, which matches the Redis source license, so licensing is clear. Low – No package manager lock for C dependencies – Native libraries (jemalloc, hiredis) are vendored; version drift is controlled by the fork, but updates require manual sync. Low – CI defined but no badge for build status – .github/workflows/ci.yml runs on pushes, but README lacks a build status badge; not a functional risk, just a documentation gap.
Overall the code follows standard Redis conventions, with a clean Makefile, CI, and documentation. No obvious security secrets or hard‑coded credentials are present.
The Bottom Line
The repo provides a production‑grade Redis server that can be built locally with a single make command, leveraging bundled dependencies for deterministic builds. It is well‑documented and CI‑tested, though the fork omits the full upstream test suite and a lockfile for the Python spell‑checker. Suitable for teams that need to compile Redis from source for custom builds, custom modules, or constrained environments; casual users may prefer the official binary releases.