Apache Cassandra Support Caveats
Instaclustr has identified the following features to either have known issues or limited known production exposure and are supported by Instaclustr with the specified caveats. If a feature is not listed, Instaclustr provides full support for the feature.
| Feature | Guidance |
| Materialised Views | Not Recommended. The project has moved this feature officially to experimental. Supported with known limitations. See https://www.instaclustr.com/apache-cassandra-materialized-view-instaclustr-support/ |
| SASI | Bug fix support only for demonstrated regressions against previous releases. We have not seen wide production use of this technology and there have been numerous major bugs in recent versions. Community consensus appears to be that this feature should be considered experimental although we are aware of significant production users. |
| Triggers | Not supported. While triggers have been available for some time and the base functionality is generally stable, they are not widely used and tested in production, and the use of triggers is complex and may have performance side effects. Community consensus appears to be that this feature should be considered experimental. |
| Change Data Capture | Change Data Capture (CDC) functionality available in Cassandra 3.11 and 4 requires complex configuration. Instaclustr recommends Change Data Capture should only be enabled when a cluster is configured with a Change Data Capture service, i.e. Debezium Connector. Instaclustr only supports CDC in Cassandra 4+ (and in our Managed Platform in conjunction with the Debezium Connector add-on). |
| User Defined Functions, Aggregates, and Types | Bug fix support only for demonstrated regressions against previous releases. The functionality has reasonable adoption although some edge case behaviour may not be well defined and individual use cases should be thoroughly tested. |
| Cassandra Hadoop Interface | Not supported. Hadoop API was not widely used and is now deprecated. |
| Thrift | Thrift API has been removed and the Native Protocol must be used instead. |
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