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From "Sylvain Lebresne (JIRA)" <>
Subject [jira] [Resolved] (CASSANDRA-9469) Improve Load Shedding
Date Fri, 12 Feb 2016 16:14:18 GMT


Sylvain Lebresne resolved CASSANDRA-9469.
    Resolution: Later

> Improve Load Shedding
> ---------------------
>                 Key: CASSANDRA-9469
>                 URL:
>             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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