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https://issues.apache.org/jira/browse/CASSANDRA-7951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis resolved CASSANDRA-7951.
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Resolution: Not a Problem
> Add a Keep Alive operation to the Native Protocol
> -------------------------------------------------
>
> Key: CASSANDRA-7951
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7951
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Michaël Figuière
> Priority: Minor
> Labels: protocolv4
>
> Socket level keep-alive option doesn't seem to bring a strong enough
> guarantee that the connection won't be dropped as some OS or Firewall level
> settings might force some different behavior.
> To simplify things and bring the strong guarantee on this point that users
> expect, it would be interesting to add a {{NOOP}} or {{KEEPALIVE}}.
> Note that we could also turn it into a {{HEARTBEAT}} operation that would
> expect a response from the server to allow client to regularly probe for
> Cassandra node health in situation where the queries traffic is too low to
> bring this probing implicitly.
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