HAProxy 1.5
haproxy.org
haproxy.org
iptables -I INPUT -p tcp -m multiport —dports 80,443 —syn -j DROP && sleep 0.5 && \
/etc/init.d/haproxy reload;
iptables -D INPUT -p -tcp -m multiport —dports 80,443 —syn -j DROP
- partial data received by old HAProxy is lost as old HAProxy exits
- new HAProxy comes online, binds to port, receives fd
- iptables rule removed. new HAProxy starts receiving new requests
- in-flight requests from the old HAProxy are timed out by the kernel (TCP RST) as nothing is there to read request data from the old fd or send response data.
So I think this is actually "worse" in some sense than the other retry behavior since it's not recovered inside the same TCP session but instead forces the client to open a new TCP session.
This is basically done by moving the balancing between workers into the master, instead of calling `accept()` concurrently from the workers.
we're still using stunnel for ssl, have been waiting for positive reports to let haproxy do it, but are optimistic.
The bud is built on the top of the libuv, which empowers the node.js.
However, you need to run it in multi-process - I found 16 to be a good number. The only drawback is that any monitoring you do is on whichever process you happen to connect to when you check, so you need to multiply by the number of total processes to get accurate numbers. Not sure why the monitoring is per-process, but it's a bit of a pain.
Based on this: http://haproxy.debian.net/
- [MINOR] check: add redis check supportCheck out Tengine, a Nginx fork made by Alibaba guys ;)
[1] https://github.com/eucalyptus/architecture/blob/master/featu...
That does mean that there are a lot of people who want AWS to support some particular feature. But having seen how featuritis can really ruin a code base, I'm glad they're conservative; I want my infrastructure to be very reliable.
Basically, bud can load the certificates and private keys for a domain name on the fly, without putting all of them into configuration.
- [MINOR] checks: add PostgreSQL health check
This article does sound to me like SSL support in haproxy is brand new: http://seanmcgary.com/posts/using-sslhttps-with-haproxy
Before SSL was rolled into haproxy, nginx was often a good candidate to handle the SSL termination. Stunnel is also common, and stud was popular for a while, but seems it was abandoned once haproxy could handle the job.