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https://issues.apache.org/jira/browse/JAMES-3774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benoit Tellier closed JAMES-3774.
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Resolution: Fixed
Merged
> Migrate to Cassandra driver version 4
> -------------------------------------
>
> Key: JAMES-3774
> URL: https://issues.apache.org/jira/browse/JAMES-3774
> Project: James Server
> Issue Type: Improvement
> Components: cassandra
> Reporter: Benoit Tellier
> Priority: Major
> Fix For: 3.8.0
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> # Why?
> - Performance
> - Native reactive driver (no longer passing through future abstraction +
> paging won't block enabling us to relax our scheduling)
> - Better support, fixes
> - Security: some of the driver 3.x dependecies have (minor) CVEs...
> - More configuration flexibility
> - Integration with java.time
> - CqlIdentifier to prevent perf impact of case sensitivity without dirty
> dricks
> Amongst others....
> # What ?
> -> Move all Cassandra code to this new driver. his basically demands a
> rewritte of all the Cassandra storage layer
> -> Testing Session instrumentation code needs to be re-written (provides
> statement logging, fault/delay injection)
> -> Configuration needs to be reworked
> A POC of how this might look like is available here:
> https://github.com/apache/james-project/pull/599
> # Impact
> Users will need to rely on the driver native configuration as those fields
> are no longer programmatically exposed.
> We will provide sane defaults as well as examples on how to achieve this.
> # Acceptance criteria
> Performance tests showing at least equivalent performances.
> # Remaining work
> - Work is ongoing on mailbox/cassandra
> - We will then need to ensure the guice layers works fine
> - And polish a bit more the POC.
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