Apache Cassandra 1.0 Documentation

Configuring Firewall Port Access

This document corresponds to an earlier product version. Make sure you are using the version that corresponds to your version.

Latest Cassandra documentation | Earlier Cassandra documentation

If you have a firewall running on the nodes in your Cassandra cluster, you must open up the following ports to allow communication between the nodes, including certain Cassandra ports. If this isn’t done, when you start Cassandra (or Hadoop in DataStax Enterprise) on a node, the node will act as a standalone database server rather than joining the database cluster.

Port Description
Public Facing Ports
22 SSH (default)
OpsCenter Specific
8888 OpsCenter website port
Intranode Ports
Cassandra Specific
1024+ JMX reconnection/loopback ports
7000 Cassandra intra-node port
7199 Cassandra JMX monitoring port
9160 Cassandra client port
OpsCenter Specific
50031 OpsCenter HTTP proxy for Job Tracker
61620 OpsCenter intra-node monitoring port
61621 OpsCenter agent ports