[jira] [Updated] (CASSANDRA-1777) The describe_host API method is misleading in that it returns the interface associated with gossip traffic

["Brandon Williams (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-1777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brandon Williams updated CASSANDRA-1777:
----------------------------------------

    Attachment: 1777-v2.txt

v2 only communicate the rpc address over gossip, and fixes a problem in v1 when the rpc address is left blank.

> The describe_host API method is misleading in that it returns the interface associated with gossip traffic
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-1777
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1777
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Nate McCall
>            Assignee: Brandon Williams
>             Fix For: 1.0
>
>         Attachments: 1777-v2.txt, 1777.txt
>
>   Original Estimate: 16h
>  Remaining Estimate: 16h
>
> If the hardware is configured to use separate interfaces for thrift and gossip, the gossip interface will be returned, given the results come out of the ReplicationStrategy eventually.
> I understand the approach, but given this is on the API, it effective worthless in situations of host auto discovery via describe_ring from a client. I actually see this as the primary use case of this method - why else would I care about the gossip iface from the client perspective? It's current form should be relegated to JMX only. 
> At the same time, we should add port information as well. 
> describe_splits probably has similar issues.
> I see the potential cart-before-horse issues here and that this will probably be non-trivial to fix, but I think "give me a set of all the hosts to which I can talk" is pretty important from a client perspective.

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