title: Cassandra is not starting
body: <p>I am having trouble with a 3-node Cassandra cluster on AWS.
  There is one seed node and two data nodes. The nodes are crashing
  when they are launched and when I am trying to start them manually.</p>
  
  <p>The error message appears in all three nodes.</p>
  
  <p>Cassandra's version is 2.0.9</p>
  
  <p>I have tried the following settings:</p>
  
  <pre><code>- class_name: org.apache.cassandra.locator.SimpleSeedProvider
    parameters:
        - seeds: "&lt;seed.node.public.IP&gt;"
  
  rpc_address: &lt;node.public.IP&gt;
  
  rpc_port: 9160
  
  listen_address: (or with the node's public IP)
  
  storage_port: 7000
  
  endpoint_snitch: SimpleSnitch (and RackInferringSnitch as well).
  </code></pre>
  
  <p>The error message is </p>
  
  <pre><code> ERROR [main] 2014-09-29 08:59:45,241 CassandraDaemon.java (line 513) Exception  encountered during startup
   java.lang.RuntimeException: Unable to gossip with any seeds
    at org.apache.cassandra.gms.Gossiper.doShadowRound(Gossiper.java:1200)
    at org.apache.cassandra.service.StorageService.checkForEndpointCollision   (StorageService.java:446)
    at org.apache.cassandra.service.StorageService.prepareToJoin(StorageService.java:657)
    at org.apache.cassandra.service.StorageService.initServer(StorageService.java:611)
    at org.apache.cassandra.service.StorageService.initServer(StorageService.java:504)
    at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:378)
    at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:496)
    at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:585)
  </code></pre>
  
  <p>Ports 7000, 7001, 7199, 8080, 9042, 9160, 61620 and 61621 are open within the Cluster's security group. </p>
  
  <p>I have also read and tried the solutions given on the following links:</p>
  
  <p><a href="https://stackoverflow.com/questions/21324489/cassandra-not-starting-up">Cassandra Not Starting Up</a></p>
  
  <p><a href="https://stackoverflow.com/questions/22308048/starting-cassandra-as-a-service-does-not-work-for-2-0-5-sudo-cassandra-f-works">Starting cassandra as a service does not work for 2.0.5, sudo cassandra -f works</a></p>
  
  <p><a href="https://stackoverflow.com/questions/20690987/apache-cassandra-unable-to-gossip-with-any-seeds">Apache Cassandra: Unable to gossip with any seeds</a></p>
  
  <p><a href="https://stackoverflow.com/questions/23419067/datastax-enterprise-is-crashing-with-unable-to-gossip-with-any-seeds-error">Datastax Enterprise is crashing with Unable to gossip with any seeds error</a></p>
  
  <p><a href="https://github.com/Netflix/Priam/issues/313" rel="nofollow noreferrer">https://github.com/Netflix/Priam/issues/313</a></p>