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https://issues.apache.org/jira/browse/CASSANDRA-9469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne resolved CASSANDRA-9469.
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Resolution: Later
> Improve Load Shedding
> ---------------------
>
> Key: CASSANDRA-9469
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9469
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Benedict
> Fix For: 3.x
>
>
> As discussed in CASSANDRA-9318, load shedding currently provides very few
> guarantees and is not employed at every stage of the pipeline. It is
> relatively simple to impose bounds on the number of items in a pipeline
> stage, along with the age of the items (as we currently impose). We should
> also ensure that the predicates are imposed on addition to a pipeline stage,
> not removal (as in the mutation/read stage case), since this does not prevent
> dangerous build up of outstanding tasks when outlier (or buggy) tasks arrive
> together (and block processing).
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