Segment 1
In this sub-session, the assistant deployed and debugged the test cluster for the scalable S3 architecture, focusing on building the s3-proxy binary, updating the Makefile and Dockerfile, and replacing the placeholder service in docker-compose.yml. A critical architectural issue was identified: all Kuri nodes were sharing the same database keyspace, causing deadlocks and race conditions. The solution was to segregate database keyspaces, giving each Kuri node its own RIBS keyspace (for deals, groups, blockstore) while sharing only the S3 metadata keyspace. This required adding a second CQL connection configuration, creating a `S3CqlDB` wrapper type, and wiring dual CQL connections through dependency injection. The assistant then staged all changes into 14 logical git commits covering configuration, interfaces, the Kuri S3 plugin, dual CQL connections, the S3 frontend proxy package, build system, test cluster infrastructure, documentation, CQL schema migrations, and endpoint fixes. Critical bugs were fixed: the `S3Objects` table schema was updated to include `node_id` and `expires_at`, a `MultipartUploads` table was created for cross-node coordination, a `/healthz` endpoint was added for proxy health checks, and `X-Node-ID` response headers were implemented. The Docker image was rebuilt successfully, and the test cluster is now ready for startup with `./start.sh /data/fgw2`.