提高Linux上系统范围内的RLIMIT_NOFILE的硬限制 [英] Raising hard limit on RLIMIT_NOFILE system-wide on Linux

问题描述

运行memcached时，我们需要提高RLIMIT_NOFILE，因为我们要达到默认的硬限制(1024).但是，提高硬限制需要root，并且由于各种原因，我们不想以root身份运行memcached或其包含的shell.现在，我们很高兴以非root用户身份运行它.

We need to raise RLIMIT_NOFILE when running memcached, as we're hitting the default hard limit (1024). However, raising a hard limit requires root, and for various reasons we don't want to have to run memcached or its containing shell as root. Right now we happily run it as a non-root user.

是否有办法提高系统范围内RLIMIT_NOFILE的硬限制，以便我们可以继续以非root用户身份运行memcached并简单地提高软限制?

Is there a way to raise the hard limit for RLIMIT_NOFILE system-wide, so that we can continue to run memcached as non-root and simply raise the soft limit?

这是具有2.6内核的RedHat Linux.

This is RedHat Linux with 2.6 kernel.

谢谢！

乔恩

推荐答案

您可以使用以下语法在/etc/security/limits.conf中设置限制:

You can set the limits in /etc/security/limits.conf with the syntax:

<domain> <type> <item> <value>

<域> 可以是用户(即内存缓存)或组.

The <domain> can be a user (i.e. memcache) or a group.

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