title: MaxRequestWorkers setting
body: <p>I have a vps with Ubuntu 14.04.1 LTS and plesk 12.01</p>
  
  <p>Where I have 8 active domains.</p>
  
  <p>Many times I find myself off the http service logs the following error:</p>
  
  <pre><code>server reached MaxRequestWorkers setting, consider raising the MaxRequestWorkers setting
  
  
  &lt;IfModule mpm_prefork_module&gt;
      StartServers             5
      MinSpareServers       5
      MaxSpareServers      10
      MaxRequestWorkers     150
      MaxConnectionsPerChild   0
  &lt;/IfModule&gt;
  
  
  
  &lt;IfModule mpm_event_module&gt;
      StartServers             2
      MinSpareThreads      25
      MaxSpareThreads      75
      ThreadLimit          64
      ThreadsPerChild      25
      MaxRequestWorkers     150
      MaxConnectionsPerChild   0
  &lt;/IfModule&gt;
  
  
  &lt;IfModule mpm_worker_module&gt;
      StartServers             2
      MinSpareThreads      25
      MaxSpareThreads      75
      ThreadLimit          64
      ThreadsPerChild      25
      MaxRequestWorkers     150
      MaxConnectionsPerChild   0
  &lt;/IfModule&gt;
  </code></pre>
  
  <p>I tried different configurations, but nothing.</p>
  
  <p>Just start the apache service sites go quietly, after 2-3 minutes they all go off. But the cpu and ram are completely free.</p>
  
  <p>In plesk I only active mpm_prefor
  How can I fix this?</p>