Summary
In this chapter, we explored the various core components of DynamoDB from a distributed systems architecture perspective. We began by understanding the roles and responsibilities of RRs, including tasks such as accessing metadata, publishing CloudWatch metrics, and performing authentication and authorization checks while serving DynamoDB requests.
Our focus then shifted to storage nodes, which are responsible for hosting and managing customer data. Regarding storage nodes, we learned about establishing durability through replication groups, encryption techniques, archival processes, data correctness checks, and their involvement in different failure modes to ensure self-healing capabilities.
Additionally, we delved into the Auto Admin service, which supervises the self-healing of DynamoDB. We explored its capabilities, such as health checks and heartbeat monitoring, along with its role in serving control plane operations to ensure the efficient functioning of DynamoDB...
