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Instead of having global options for all listeners,
make all socket options per-listener. This allows
reverse-proxies to pick different listeners to get
different options on different sockets.
Given a cluster of machines (10.0.0.1, 10.0.0.2, 10.0.0.3)
running Unicorn with the following config:
------------------ 8< ----------------
listen "/tmp/local.sock", :backlog => 1
listen "*:8080" # use the backlog=1024 default
------------------ 8< ----------------
It is possible to configure a reverse proxy to try to use
"/tmp/local.sock" first and then fall back to using the
TCP listener on port 8080 in a failover configuration.
Thus the nginx upstream configuration on 10.0.0.1 to
compliment this would be:
------------------ 8< ----------------
upstream unicorn_cluster {
# reject connections ASAP if we are overloaded
server unix:/tmp/local.sock;
# fall back to other machines in the cluster via "backup"
# listeners which have a large backlog queue.
server 10.0.0.2:8080 backup;
server 10.0.0.3:8080 backup;
}
------------------ 8< ----------------
This removes the global "backlog" config option which
was inflexible with multiple machines in a cluster
and exposes the ability to change SO_SNDBUF/SO_RCVBUF
via setsockopt(2) for the first time.
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Note: since we've stripped everything down to hell, we're Ruby
1.9 compatible at the moment. Also remove references to that
new school stuff like JRuby and threads.
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* 'master' of git@github.com:fauna/mongrel:
Merge pivotal code.
Moving toward using a logger instead of dumping to STDERR all over the place.
TODO been did.
No commands.
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* 'master' of git@github.com:fauna/mongrel:
Did that.
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git-svn-id: svn+ssh://rubyforge.org/var/svn/mongrel/branches/stable_1-1@969 19e92222-5c0b-0410-8929-a290d50e31e9
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git-svn-id: svn+ssh://rubyforge.org/var/svn/mongrel/trunk@865 19e92222-5c0b-0410-8929-a290d50e31e9
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git-svn-id: svn+ssh://rubyforge.org/var/svn/mongrel/trunk@854 19e92222-5c0b-0410-8929-a290d50e31e9
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