In the event of a disk failure, which process will immediately and automatically scan Cassandra to find all data previously hosted on the failed disk, and all disks in that node?
In the event of a disk failure, which process will immediately and automatically scan Cassandra to find all data previously hosted on the failed disk, and all disks in that node?
In the event of a disk failure, the Curator process will immediately and automatically scan the metadata in Cassandra to find all data previously hosted on the failed disk, as well as all disks in that node. Curator is specifically designed for tasks such as this to ensure data consistency and replication in a distributed storage environment.
In the event of a disk failure, a Curator scan (MapReduce Framework) will occur immediately. It will scan the metadata (Cassandra) to find the data previously hosted on the failed disk and the nodes / disks hosting the replicas. https://www.nutanixbible.com/4c-book-of-aos-storage.html