<?xml version="1.0" encoding="utf-8"?>

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<chapter xml:id="install.fpm" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">

<title>FastCGI Process Manager (FPM)</title>

&fpm.intro;

<para>

These features include:

<itemizedlist>

<listitem>

<para>

advanced process management with graceful stop/start;

</para>

</listitem>

<listitem>

<para>

pools that give ability to start workers with different

uid/gid/chroot/environment, listening on different ports and using

different php.ini (replaces safe_mode);

</para>

</listitem>

<listitem>

<para>

configurable stdout and stderr logging;

</para>

</listitem>

<listitem>

<para>

emergency restart in case of accidental opcode cache destruction;

</para>

</listitem>

<listitem>

<para>

accelerated upload support;

</para>

</listitem>

<listitem>

<para>

"slowlog" - logging scripts (not just their names, but their PHP

backtraces too, using ptrace and similar things to read remote

process' execute_data) that are executed unusually slow;

</para>

</listitem>

<listitem>

<para>

<function>fastcgi_finish_request</function> - special function to finish

request and flush all data while continuing to do something

time-consuming (video converting, stats processing etc.);

</para>

</listitem>

<listitem>

<para>

dynamic/ondemand/static child spawning;

</para>

</listitem>

<listitem>

<para>

basic and extended status info (similar to Apache mod_status) with

various formats like json, xml and openmetrics supported;

</para>

</listitem>

<listitem>

<para>

php.ini-based config file.

</para>

</listitem>

</itemizedlist>

</para>

&install.fpm.install;

&install.fpm.configuration;

</chapter>

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