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Highload documentation update

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z3APA3A 2019-02-22 17:05:22 +03:00
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@ -40,8 +40,13 @@ Each connected client require:
</ul>
Also, additional resources like system buffers are required for network activity.
<h4>Setting ulimits</h4>
Hard and soft ulimits must be set above calculated requirements. Validate
ulimits match your expectation, especially if you run 3proxy under dedicated account
Hard and soft ulimits must be set above calculated requirements. Under Linux, you can
check limits of running process with
<pre>
cat /proc/PID/limits
</pre>
where PID is a pid of the process.
Validate ulimits match your expectation, especially if you run 3proxy under dedicated account
by adding e.g.
<pre>
system "ulimit -Ha >>/tmp/3proxy.ulim.hard"
@ -50,11 +55,24 @@ system "ulimit -Sa >>/tmp/3proxy.ulim.soft"
in the beginning (before first service started) and the end of config file.
Make both hard restart (that is kill and start 3proxy process) and soft restart
by sending SIGUSR1 to 3proxy process, check ulimits recorded to files match your
expecation.
expecation. In systemd based distros (e.g. latest Debian / Ubuntu) changing limits.conf
is not enough, limits must be ajusted in systemd configuration, e.g. by setting
<pre>
DefaultLimitDATA=infinity
DefaultLimitSTACK=infinity
DefaultLimitCORE=infinity
DefaultLimitRSS=infinity
DefaultLimitNOFILE=102400
DefaultLimitAS=infinity
DefaultLimitNPROC=10240
DefaultLimitMEMLOCK=infinity
<pre>
in user.conf / system.conf
<h4>Extending system limitation</h4>
Check manuals / documentation for your system limitations. You may need to change
sysctls or even rebuild the kernel from source.
To help with system-dependant settings, since 0.9-devel 3proxy supports different
Check manuals / documentation for your system limitations e.g. system-wide limit for number of open files
(fs.file-max in Linux). You may need to change sysctls or even rebuild the kernel from source.
<p>
To help with socket-based system-dependant settings, since 0.9-devel 3proxy supports different
socket options which can be set via -ol option for listening socket, -oc for proxy-to-client
socket and -os for proxy-to-server socket. Example:
<pre>