title: Kafka broker taking too long to come up
body: <p>Recently, one of our Kafka broker (out of 5) got shut down incorrectly. Now that we are starting it up again, there are a lot of warning messages about corrupted index files and the broker is still starting up even after 24 hours. There is over 400 GB of data in this broker. </p>
  
  <p>Although the rest of the brokers are up and running but some of the partitions are showing -1 as their leader and the bad broker as the only ISR. I am not seeing other Replicas to be appointed as new leaders, maybe because the bad broker is the only one in sync for those partitions.</p>
  
  <pre><code>Broker Properties: 
  Replication Factor: 3
  Min In Sync Replicas: 1
  </code></pre>
  
  <p>I am not sure how to handle this. Should I wait for the broker to fix everything itself? is it normal to take so much time?</p>
  
  <p>Is there anything else I can do? Please help.</p>