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From "Paulo Motta (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-11356) EC2MRS ignores broadcast_rpc_address setting in cassandra.yaml
Date Thu, 04 Aug 2016 22:42:20 GMT


Paulo Motta commented on CASSANDRA-11356:

Updated {{NEWS.txt}} and added the following note to {{doc/source/operating/snitch.rst}} on
3.9 and trunk:

bq. By default, Ec2MultiRegionSnitch advertises the public instance IP as ``rpc_address``,
allowing cross-DC discovery by token-aware clients but this may incur additional charges on
EC2 for public IP access within the local DC if a token-aware client is used. In order to
override this behavior and restrict token-aware clients to the local DC, set ``broadcast_rpc_address``
to the instance's private IP.

After writing this, I wondered if we should provide this as an option on {{Ec2MultiRegionSnitch}},
but then I thought that we should ultimately fix this limitation by adding a {{broadcast_rpc_address}}
column to the {{system.peers}} table, and drivers would pick either the private {{rpc_address}}
or the public {{broadcast_rpc_address}} depending on where the client is located, but we should
probably fix this in another ticket. WDYT?

> EC2MRS ignores broadcast_rpc_address setting in cassandra.yaml
> --------------------------------------------------------------
>                 Key: CASSANDRA-11356
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Thanh
>            Assignee: Paulo Motta
>             Fix For: 2.2.x, 3.x
> EC2MRS ignores broadcast_rpc_address setting in cassandra.yaml.  This is problematic
for those users who were using EC2MRS with an internal rpc_address before the change introduced
in [CASSANDRA-5899|], because the change
results in EC2MRS always using the public ip regardless of what the user has set for broadcast_rpc_address.

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