title: max file descriptors for elasticsearch process is too low
body: <p>Cannot resolve these problems:</p>
  
  <pre><code>[2017-10-16T13:54:23,381][WARN ][o.e.b.BootstrapChecks    ] [node-1] max 
  file descriptors [65000] for elasticsearch process is too low, increase to 
  at least [65536]
  [2017-10-16T13:54:23,382][WARN ][o.e.b.BootstrapChecks    ] [node-1] max 
  number of threads [1024] for user [appadm01] is too low, increase to at 
  least [2048]
  [2017-10-16T13:54:23,382][WARN ][o.e.b.BootstrapChecks    ] [node-1] system 
  call filters failed to install; check the logs and fix your configuration or 
  disable system call filters at your own risk
  </code></pre>
  
  <p>I executed sysctl -w fs.file-max=65536 but I get the same thing.</p>