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Date: Wed, 03 Sep 2014 10:40:20 +0530
From: dE <de.techno@gmail.com>
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Subject: [users@httpd] Understanding Apache Mutex directive.

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Hi.

I was reading this --

http://httpd.apache.org/docs/trunk/mod/core.html#mutex

Quoting what's written here --
> Specify |default| as the first argument to change the settings for all 
> mutexes
As we know mutex is a mechanism; it appears Apache has settings for each 
mutex it implements.

> specify a mutex name (see table below) as the first argument to 
> override defaults only for that mutex.

So the table starting with 'The following table documents....' lists all 
the mechanisms. But before the table there exists a list with the 
heading 'The following mutex mechanisms are available:'.

So I don't understand which one of these is the mutex mechanism.

Also the statement --

> specify a mutex name (see table below) as the first argument to 
> override defaults only for that mutex.

Contradicts the examples --

> Mutex  sysvsem default
> Mutex  fcntl:/var/httpd/locks mpm-accept

Where the entries in the table are not the first argument, instead the 
list starting with 'The following mutex mechanisms are available:' is.

Thanks for any clarification.

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    Hi.<br>
    <br>
    I was reading this -- <br>
    <br>
    <a class="moz-txt-link-freetext" href="http://httpd.apache.org/docs/trunk/mod/core.html#mutex">http://httpd.apache.org/docs/trunk/mod/core.html#mutex</a><br>
    <br>
    Quoting what's written here -- <br>
    <blockquote type="cite">Specify <code>default</code> as the first
      argument to change the settings for all mutexes</blockquote>
    As we know mutex is a mechanism; it appears Apache has settings for
    each mutex it implements.<br>
    <br>
    <blockquote type="cite">specify a mutex name (see table below) as
      the first argument to override defaults only for that mutex.</blockquote>
    <br>
    So the table starting with 'The following table documents....' lists
    all the mechanisms. But before the table there exists a list with
    the heading 'The following mutex mechanisms are available:'.<br>
    <br>
    So I don't understand which one of these is the mutex mechanism.<br>
    <br>
    Also the statement -- <br>
    <br>
    <blockquote type="cite">specify a mutex name (see table below) as
      the first argument to override defaults only for that mutex.</blockquote>
    <br>
    Contradicts the examples -- <br>
    <br>
    <blockquote type="cite">
      <pre style="" class="prettyprint lang-config prettyprinted"><span class="kwd">Mutex</span><span class="pln"> sysvsem default
</span><span class="kwd">Mutex</span><span class="pln"> fcntl</span><span class="pun">:/</span><span class="pln">var</span><span class="pun">/</span><span class="pln">httpd</span><span class="pun">/</span><span class="pln">locks mpm-accept</span></pre>
    </blockquote>
    <br>
    Where the entries in the table are not the first argument, instead
    the list starting with 'The following mutex mechanisms are
    available:' is.<br>
    <br>
    Thanks for any clarification.<br>
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