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https://issues.apache.org/jira/browse/CASSANDRA-12345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Brown updated CASSANDRA-12345:
------------------------------------
    Description: 
This is a parent ticket covering changes to the dissemination aspects of the 
current gossip subsystem. (Changes to the actual data being exchanged by the 
current gossip (the cluster metadata) will be handled elsewhere, but the 
current primary ticket covering that work is CASSANDRA-9667.)


This work requires several components, which largely need to completed in this 
order:
- a peer sampling service to create partial cluster views (CASSANDRA-12346). 
This forms the basis of the next two components
- a broadcast tree, which creates dynamic spanning trees given the partial 
views provided by the peer sampling service (CASSANDRA-12347)
- an anti-entropy component, which is similar to the pair-wise exchange and 
reconciliation of the exitsing gossip implementation (CASSANDRA-???)

These base components (primarily the broadcast and anti-entropy) can allow for 
generic consumers to simply and effectively share a body of data across an 
entire cluster. The most obvious consumer will be a cluster metadata component, 
which can replace the existing gossip system, but also other components like 
CASSANDRA-12106.


  was:
This is a parent ticket covering changes to the dissemination aspects of the 
current gossip subsystem. (Changes to the actual data being exchanged by the 
current gossip (the cluster metadata) will be handled elsewhere, but the 
current primary ticket covering that work is CASSANDRA-9667.)


This work requires several components, which largely need to completed in this 
order:
- a peer sampling service to create partial cluster views (CASSANDRA-12346). 
This forms the basis of the next two components
- a broadcast tree, which creates dynamic spanning trees given the partial 
views provided by the peer sampling service (CASSANDRA-???)
- an anti-entropy component, which is similar to the pair-wise exchange and 
reconciliation of the exitsing gossip implementation (CASSANDRA-???)

These base components (primarily the broadcast and anti-entropy) can allow for 
generic consumers to simply and effectively share a body of data across an 
entire cluster. The most obvious consumer will be a cluster metadata component, 
which can replace the existing gossip system, but also other components like 
CASSANDRA-12106.



> Gossip 2.0
> ----------
>
>                 Key: CASSANDRA-12345
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12345
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jason Brown
>            Assignee: Jason Brown
>              Labels: gossip
>
> This is a parent ticket covering changes to the dissemination aspects of the 
> current gossip subsystem. (Changes to the actual data being exchanged by the 
> current gossip (the cluster metadata) will be handled elsewhere, but the 
> current primary ticket covering that work is CASSANDRA-9667.)
> This work requires several components, which largely need to completed in 
> this order:
> - a peer sampling service to create partial cluster views (CASSANDRA-12346). 
> This forms the basis of the next two components
> - a broadcast tree, which creates dynamic spanning trees given the partial 
> views provided by the peer sampling service (CASSANDRA-12347)
> - an anti-entropy component, which is similar to the pair-wise exchange and 
> reconciliation of the exitsing gossip implementation (CASSANDRA-???)
> These base components (primarily the broadcast and anti-entropy) can allow 
> for generic consumers to simply and effectively share a body of data across 
> an entire cluster. The most obvious consumer will be a cluster metadata 
> component, which can replace the existing gossip system, but also other 
> components like CASSANDRA-12106.



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