cassandra-rackdc.properties file
Configuration file for the GossipingPropertyFileSnitch, Ec2Snitch, and Ec2MultiRegionSnitch.
cassandra-rackdc.properties
The location of the cassandra-rackdc.properties file depends on the type of installation:Package installations | /etc/dse/cassandra/cassandra-rackdc.properties |
Tarball installations | installation_location/resources/cassandra/conf/cassandra-rackdc.properties |
This page also includes instructions for migrating from the PropertyFileSnitch to the GossipingPropertyFileSnitch.
GossipingPropertyFileSnitch
This snitch is recommended for production. It uses rack and datacenter information for the local node defined in the cassandra-rackdc.properties file and propagates this information to other nodes via gossip.
- Define the datacenter and rack that include this node. The default
settings:
dc=DC1 rack=RAC1
Note: datacenter and rack names are case-sensitive. For examples, see Initializing a single datacenter per workload type and Initializing multiple datacenters per workload type. -
To save bandwidth, add the
prefer_local=true
option. This option tells DataStax Enterprise to use the local IP address when communication is not across different datacenters.
PropertyFileSnitch and GossipingPropertyFileSnitch considerations
Understanding the PropertyFileSnitch
and the
GossipingPropertyFileSnitch
requires background information about their
behavior across DSE releases. For important details, refer to this Tip in the Switching Snitches topic.