Sam Overton created CASSANDRA-7544:
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Summary: Allow storage port to be configurable per node
Key: CASSANDRA-7544
URL: https://issues.apache.org/jira/browse/CASSANDRA-7544
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Sam Overton
Assignee: Sam Overton
Currently storage_port must be configured identically on all nodes in a cluster
and it is assumed that this is the case when connecting to a remote node.
This prevents running in any environment that requires multiple nodes to be
able to bind to the same network interface, such as with many automatic
provisioning/deployment frameworks.
The current solutions seems to be
* use a separate network interface for each node deployed to the same box. This
puts a big requirement on IP allocation at large scale.
* allow multiple clusters to be provisioned from the same resource pool, but
restrict allocation to a maximum of one node per host from each cluster,
assuming each cluster is running on a different storage port.
It would make operations much simpler in these kind of environments if the
environment provisioning the resources could assign the ports to be used when
bringing up a new node on shared hardware.
The changes required would be at least the following:
1. configure seeds as IP:port instead of just IP
2. gossip the storage port as part of a node's ApplicationState
3. refer internally to nodes by hostID instead of IP, since there will be
multiple nodes with the same IP
(1) & (2) are mostly trivial and I already have a patch for these. The bulk of
the work to enable this is (3), and I would structure this as a separate
pre-requisite patch.
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