title: gatsby build on hosting server > pthread_create: Resource temporarily unavailable
body: <p>I want to build my gatsby app on my server.
  Locally <code>gatsby build</code> is without problems, public dir is filled with the right files.
  /public/ is in .gitignore, so on my server I want to <code>gatsby build</code> / <code>npm run build</code> </p>
  
  <p>When I run <code>gatsby build</code> on my server, it stops with an error at:
   Building production JavaScript and CSS bundlesnode[2620173]: pthread_create: Resource temporarily unavailable
  error UNHANDLED EXCEPTION</p>
  
  <p>(shared hosting without root access, gatsby-cli is globally installed).
  What could I do to be able to use the build script here?</p>
  
  <p>Could it have something to do with this? :
  gatsby-starter-default@0.1.0 build /home/commun39/vdep-comm
  gatsby build</p>
  
  <p>lscpu: failed to determine number of CPUs: /sys/devices/system/cpu/possible: No such file or directory`</p>
  
  <p>Thank you!</p>