haproxy
| concurrency-limits | haproxy | |
|---|---|---|
| 3 | 16 | |
| 3,136 | 4,482 | |
| 0.4% | 1.9% | |
| 6.2 | 9.9 | |
| about 19 hours ago | 7 days ago | |
| Java | C | |
| Apache License 2.0 | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
concurrency-limits
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Any Load Shedding packages out there?
Does anyone know if there's a reputable OS load shedding / concurrency limiting package similar to Netflix's concurrency limits Netflix/concurrency-limits (github.com) for NodeJS? I'm migrating some middleware written in Kotlin to NodeJS and wanted to know how folks typically solve this problem.
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35M Hot Dogs: Benchmarking Caddy vs. Nginx
Under heavy congestion the goodput (useful throughput) will drop to 0 because client will start timing-out before the server get a chance to respond.
Caddy should use an algorithm similar to : https://github.com/Netflix/concurrency-limits
Basically check what was the best request latency, and decrease concurrency limit until latency stop improving.
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The most important thing to understand about queues (2016)
https://github.com/Netflix/concurrency-limits
FWIW envoy also has an adaptive concurrency experimental plugin that seems similar that I'd also love to hear about any real world experience with:
haproxy
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HAProxy is not affected by the HTTP/2 Rapid Reset Attack (CVE-2023-44487)
I wanted to try it out just now but hit a roadblock immediately - it cannot automatically obtain and maintain TLS certificates. You have to use an external client (e.g. acme.sh), set up a cron to check/renew them, and poke HAProxy to reload them if necessary. I'm way past doing this in 2023.
https://www.haproxy.com/blog/haproxy-and-let-s-encrypt
https://github.com/haproxy/haproxy/issues/1864
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Why Haproxy is not build with PROMEX by default (Linux / BSD)
For context I think this might be useful: https://github.com/haproxy/haproxy/blob/master/addons/promex/README
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minexmr2.com updated to p2pool v3.1, monerod v0.18.2.0, and ready for Mar 18 p2pool (not monero) hardfork
I turn on 1 relatively cheap cloud server to process DNS, https and stratum connections and route them via haproxy to one of N miner servers described above.
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HAProxy Security Update (CVE-2023-25725) - HTTP content smuggling attack
Full technical writeup here: https://github.com/haproxy/haproxy/commit/a8598a2eb11b6c989e81f0dbf10be361782e8d32
- Request smuggling in HAProxy via empty header name
- Enormous session rate
- Update to haproxy 2.4.18 breaks WebDAV
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HAProxy 2.7
With the recent discussions about memory safe languages, HAProxy is still surprisingly written in C [0].
[0]: https://github.com/haproxy/haproxy
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35M Hot Dogs: Benchmarking Caddy vs. Nginx
It does not, because HAProxy does not perform any disk access at runtime and thus would be unable to persist the certificates anywhere. Disks accesses can be unpredictably slow and would block the entire thread which is not something you want when handling hundreds of thousands of requests per second.
See this issue and especially the comment from Lukas Tribus: https://github.com/haproxy/haproxy/issues/1864
Disclosure: Community contributor to HAProxy, I help maintain HAProxy's issue tracker.
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Guide to Adapting HAProxy to openGauss
Code link: https://github.com/haproxy/haproxy
What are some alternatives?
nginx-adapter - Run Caddy with your NGINX config
zstd - Zstandard - Fast real-time compression algorithm
souin - An HTTP cache system, RFC compliant, compatible with @tyktechnologies, @traefik, @caddyserver, @go-chi, @bnkamalesh, @beego, @devfeel, @labstack, @gofiber, @go-goyave, @go-kratos, @gin-gonic, @roadrunner-server, @zalando, @zeromicro, @nginx and @apache
ClickHouse - ClickHouse® is a free analytics DBMS for big data
Vegeta - HTTP load testing tool and library. It's over 9000!
3proxy - 3proxy - tiny free proxy server
h2o - H2O - the optimized HTTP/1, HTTP/2, HTTP/3 server
Caddy - Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS
Jool - SIIT and NAT64 for Linux
brotli - Brotli compression format
traefik - The Cloud Native Application Proxy