title: Tomcat 8 session persistence after kill -9 <PID>
body: <p>I am trying to understand the tomcat's (version 8.0.21) session persistence after I execute kill -9 . When I start my tomcat ( using startup.sh), I observe (randomly) http sessions of my web app ( which were created before the kill command execution) still being maintained.
  I understand this session persistence across restart, if I execute shutdown.sh to stop the tomcat and then bring the tomcat up again. My understanding of kill -9  is some what similar to 'power-off'. So my question is :</p>
  
  <ol>
  <li>Whether the standard manager implementation gets invoked just after kill -9, which tries to persist session before termination.</li>
  <li>Or I just get the previous session because my tomcat may have serialized the few session, (somewhere into its temp directory) while it was up earlier (before execution of kill -9).</li>
  </ol>