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https://issues.apache.org/jira/browse/CASSANDRA-14743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16613463#comment-16613463
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Ariel Weisberg commented on CASSANDRA-14743:
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bq. This is only true while the transient status is healthy.
Right so it's still sorted by score it's just that if they are close we prefer
transient. If the transient node is unhealthy it's score won't be close right?
bq. Ideally, though, we would be tracking separate statistics for each
endpoint;
Isn't this what the dynamic snitch does? Track read performance by endpoint?
> Better health based routing for transient reads
> ------------------------------------------------
>
> Key: CASSANDRA-14743
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14743
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Ariel Weisberg
> Priority: Major
> Fix For: 4.x
>
>
> Right now replica selection for reads with transient replication is purely
> health based, but it is health based in the sense that it health information
> is shared across both transient and full ranges. This means you can't use the
> health information to tell if an endpoint will be faster for a specific query.
> As a heuristic a transient replica will be a little faster for a read
> compared to a full replica given two endpoints with similar scores so maybe
> we don't need additional health information.
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