How Does GeminiDB Redis API Persist Data? Will Data Be Lost?

Open-Source Redis persists data periodically, so there is a high probability that data loss occurs in abnormal scenarios. GeminiDB Redis API data is updated to a storage pool in real time, improving data security.

Similar to other NoSQL databases, backend processes on the GeminiDB Redis API instance write write-ahead logs (WALs) into OS buffers. The buffers immediately return and then are updated to the storage pool. Therefore, a small amount of data may be lost in the case of an unexpected power failure.

GeminiDB Redis API ensures data is not lost during routine O&M, such as changing specifications, upgrading versions, and adding nodes. Synchronous writes greatly reduce write performance. To achieve higher data reliability, you need to enable synchronous writes. You can choose Service Tickets > Create Service Ticket in the upper right corner of the console.