Benoit Tellier created JAMES-3774:
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Summary: 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
Fix For: 3.8.0
# 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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