title: SQL Server 2012 error - Lock Request Timeout exceeded
body: <ol>
  <li><p>I get an error 'lock request time out exceeded' when shrink log file and Backup database</p></li>
  <li><p>I know when this error will come. Some transaction should be locking the table. </p>
  
  <p><strong>But I need to know how to    find that?</strong></p></li>
  </ol>
  
  <p>Thanks</p>