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https://issues.apache.org/jira/browse/CASSANDRA-8440?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas updated CASSANDRA-8440:
Component/s: Local Write-Read Paths
> Refactor StorageProxy
> -
>
> Key: CASSANDRA-8440
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8440
> Project: Cassandra
> Issue Type: Improvement
> Components: Local Write-Read Paths
>Reporter: Joshua McKenzie
>Priority: Major
> Fix For: 4.x
>
>
> The StorageProxy is currently a monolithic singleton with a collection of
> static methods. This ticket will track a multi-phase effort to refactor this
> into appropriate subclasses, convert the internals to asynchronous
> operations, and eventually change the API to being async.
>
> See CASSANDRA-7392 for an example of a feature that this change would help
> facilitate.
> Broken down into 5 phases:
> * Phase 1: Un-singleton and Break static methods down into classes
> * Phase 2: Convert StorageProxy classes to futures, keep internal synchronous
> processing so interface doesn't change
> * Phase 3: Track count and limits on internal messages within StorageProxy
> * Phase 4: Push async interface upstream
> * Phase 5: Profile garbage generation from StorageProxy changes and consider
> object pooling
> Granularity with the breakdown above is to make reviews less painful and make
> it easier to add unit-testing for this component as we go.
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