title: Redis write to master read from slave
body: <p>We want to use Redis to distribute data to remote servers. </p>
  
  <p>There is one master instance in the HQ and many remote slaves in our subsidiaries connected to the master.</p>
  
  <p>Our applications are running in our subsidiaries. In 99% of the time there are read-only requests made to the slave instance.</p>
  
  <p>But there is also the case of modifying data. Such a request is issued against the master.</p>
  
  <p>Is there a way to ensure that the changes made to the master are replicated to the slave before the next read request?</p>