title: Insufficient space for shared memory file when I try to run nutch generate command
body: <p>I have been running nutch crawling commands for the passed 3 weeks and now I get the below error when I try to run any nutch command:</p>
  <blockquote>
  <p>Java HotSpot(TM) 64-Bit Server VM warning: Insufficient space for
  shared memory file:    /tmp/hsperfdata_user/27050 Try using the
  -Djava.io.tmpdir= option to select an alternate temp location.</p>
  <p>Error: Could not find or load main class ___.tmp.hsperfdata_user.27055</p>
  </blockquote>
  <p>How do I solve this issue?</p>