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https://issues.apache.org/jira/browse/CASSANDRA-18485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Caleb Rackliffe updated CASSANDRA-18485:
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Reviewers: Caleb Rackliffe
> CEP-15: (C*) Enhance in-memory FileSystem to work with mmap and support tests
> to add custom logic
> -------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-18485
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18485
> Project: Cassandra
> Issue Type: Improvement
> Components: Accord, Test/dtest/java, Test/unit
> Reporter: David Capwell
> Assignee: David Capwell
> Priority: Normal
> Fix For: 5.x
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> The Simulator currently uses JimFS for its FileSystem, but this lacks any way
> to add custom logic when file operations are performed; it also lacks mmap
> support which requires all disk access logic to provide non-mmap solutions as
> well.
> As part of the Simulator work, testing disk corruption will require resolving
> both these issues, so will need a new FileSystem to rule them all…
> This ticket is to define the new FileSystem and add the integration to
> Simulator, JVM-Dtest, and Unit tests, but does not directly add the fault
> injections that Simulator will be doing, that will be follow up work.
> Goals:
> * FileSystem that works for unit, jvm-dtest, and simulator tests
> * FileSystem that allows tests to intercept file operations
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