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https://issues.apache.org/jira/browse/TS-5048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Miles Libbey updated TS-5048:
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Issue Type: Improvement (was: Bug)
> parent.config: add weighting to other selection strategies
> ----------------------------------------------------------
>
> Key: TS-5048
> URL: https://issues.apache.org/jira/browse/TS-5048
> Project: Traffic Server
> Issue Type: Improvement
> Components: Parent Proxy
> Reporter: Miles Libbey
>
> The consistent_hash selection strategy allows for a weighting of the parents.
> So, a config like,
> parent="p1.x.com:80|2,p2.x.com:80|1" round_robin=consistent_hash
> would have p1 placed in the ring twice as many times as p1, and thus should
> received 2x more URIs as p1. (Note that traffic associated with URIs can vary
> considerably, so this weighting can be randomly associated with traffic
> levels).
> This weighting should be extended to the round robin selection strategies
> (strict|true)-- weighted round robin is a common load balancing strategy. In
> these cases, the weightings would likely cause selection to cycle amongst the
> parents such that each target would roughly end up with N/(sum of Ns) % of
> the total traffic.
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