傀儡init脚本不创建pid文件？

Question

• CentOS版本5.4 (最终)
• puppet-server-2.7.19-1.el5是从傀儡实验室安装的。

puppetmaster已成功启动，但它没有创建pid文件。当停止时，这是[ FAILED ]消息的原因：

/etc/init.d/puppetmaster stop
Stopping puppetmaster:                                     [FAILED]

init脚本：http://fpaste.org/nsfI/

/etc/rc.d/init.d/functions库：http://fpaste.org/ox5Q/

这就是我在调试模式下运行时得到的结果：http://fpaste.org/DkoS/

我知道如何在启动后手动将pid发送到文件，但是为什么daemon函数的--pidfile不能工作？

daemon $PUPPETMASTER $PUPPETMASTER_OPTS --masterport=${PUPPETMASTER_PORTS[$i]} --pidfile=/var/run/puppet/puppetmaster.${PUPPETMASTER_PORTS[$i]}.pid

当然，木偶主人是以puppet用户的身份运行的：

ps -ef | grep [p]uppet
puppet   23418     1  0 18:13 ?        00:00:00 /usr/bin/ruby /usr/sbin/puppetmasterd

/var/run/puppet/文件夹的所有者是puppet

# ls -ld /var/run/puppet/
drwxr-xr-x 2 puppet puppet 4096 Sep 17 18:46 /var/run/puppet/

Answer 1

创建pidfile取决于控制程序(在本例中是puppetmasterd)，而不是daemon()函数；daemon()依赖于此。

确认，puppetmasterd在其中创建它的pidfile (可以是/var/run/puppet.pid、/var/lib/puppet/run/master.pid等)。要找出答案，请检查puppetmasterd的内容(如果是脚本)，或者杀死puppetmasterd然后删除strace -f puppetmasterd 2>&1 | grep '\.pid'。

相应地修改pidfile在/etc/init.d/puppetmaster中的值。

Answer 2

所以，在我看来，这里有几种可能性：

1. 如果您试图使用守护进程命令的-pidfile选项，我相信您有语法问题。

- Red Hat's daemon command has the following (unhelpful) signature: `Usage: daemon [+/-nicelevel] {program}`.  **What isn't altogether clear is that anything that you include after the program location is treated as an option passed to the program, not to the daemon function call.**
- So, in your case you are passing the `--pidfile` argument to `$PUPPETMASTER` itself as opposed to `daemon()`.  You could remedy this by using the following: `daemon --pidfile=/var/run/puppet/puppetmaster.${PUPPETMASTER_PORTS[$i]}.pid $PUPPETMASTER $PUPPETMASTER_OPTS --masterport=${PUPPETMASTER_PORTS[$i]}` 

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1. 这里的第二个选项是$PUPPETMASTER (或者更确切地说，是它背后的程序)可能会将自己去守护，如果是这样的话，可以负责创建自己的.pid文件。过程管理工具马戏团就是这样工作的。它可能是配置文件中的一个选项，或者是由$PUPPETMASTER表示的程序的选项。

- I'm not a Puppet user, so I won't be able to help you with the specifics here.  But I would look into the [Puppet labs documentation](http://docs.puppetlabs.com/) to find out more about this option.
- It is important to note if $PUPPETMASTER is daemonizing itself, then the `--pidfile` argument being passed to `daemon()` will have no effect.

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很好的狩猎！