mirror of https://github.com/F-Stack/f-stack.git
94 lines
3.9 KiB
Markdown
94 lines
3.9 KiB
Markdown
# F-Stack Nginx APP Guide
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F-Stack is an open source network framework based on DPDK. F-Stack supports standard Nginx as HTTP framework which means all web application based on HTTP can easily use F-Stack.
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## How does Nginx use F-Stack?
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Nginx APP is in `app/nginx-1.11.10` directory.
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```
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+--------+
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+------------------------+ |
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channel: socketpair |
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+------------------------+ | signal(reload, quit..)
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+---------v--------+
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+----------------+ master process +---------------+
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| channel +----------+-------+ |
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| | channel |
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| channel | |
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+---------+----------+ +----------+--------+ +---------+--------+
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first one to start | | | | | |
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last one to exit<-+ primary worker | | secondary worker | | secondary worker |
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+--------------------+ +-------------------+ +------------------+
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+--------------------+ +-------------------+
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| fstack,kernel | | fstack,kernel |
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| and channel | | and channel |
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| loop thread | | loop thread |
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+--------------------+ +-------------------+
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woker process cycle woker process cycle
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```
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- spawn primary worker firstly, and then wait for primary startup, continue to spawn secondary workers.
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- a major addition to the worker process is fstack-handling：ff_init();ff_run(worker_process_cycle); worker_process_cycle(handle channel/host/fstack event).
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## What's Different?
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### New directives:
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All the directives below are available only when ```NGX_HAVE_FSTACK``` is defined.
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```
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Syntax: kernel_network_stack on | off;
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Default: kernel_network_stack off;
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Context: http, server
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Determines whether server should run on kernel network stack or fstack.
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```
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```
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Syntax: proxy_kernel_network_stack on | off;
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Default: kernel_network_stack off;
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Context: http, stream, mail, server
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Determines whether proxy should go through kernel network stack or fstack.
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```
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```
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Syntax: schedule_timeout time;
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Default: schedule_timeout 30m;
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Context: http, server
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Sets a time interval for polling kernel_network_stack. The default value is 30 msec.
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```
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### Command-line `reload`
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the `reload` is not graceful, service will still be unavailable during the process of reloading.
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### Necessary modifies in nginx.conf:
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```
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user root; # root account is necessary.
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fstack_conf f-stack.conf; # path of f-stack configuration file, default: $NGX_PREFIX/conf/f-stack.conf.
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worker_processes 1; # should be equal to the lcore count of `dpdk.lcore_mask` in f-stack.conf.
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events {
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worker_connections 102400; # increase
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use kqueue; # use kqueue
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}
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sendfile off; # sendfile off
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```
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## Nginx compiling
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./configure --prefix=/usr/local/nginx_fstack --with-ff_module
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make
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make install
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