Continuous backup of data in a distributed data store

A method, comprising:

• detecting, at a backup node that applies updates to a backup version of a data volume, a configuration change for the data volume, wherein the data volume is stored in a distributed data store across a plurality of storage nodes that provide the updates to the backup node according to a peer-to-peer replication scheme used to replicate updates to the data volume among the plurality of storage nodes and the backup node;
• and
• adapting, by the backup node, performance of obtaining additional updates to the data volume according to the peer-to-peer replication scheme based, at least in part, on the detected configuration change.

One or more non-transitory, computer-readable storage media, storing program instructions that when executed on or across one or more computing devices cause the one or more computing devices to implement:

• detecting, at a backup node that applies updates to a backup version of a data volume, a configuration change for the data volume, wherein the data volume is stored in a distributed data store across a plurality of storage nodes that provide the updates to the backup node according to a peer-to-peer replication scheme used to replicate updates to the data volume among the plurality of storage nodes and the backup node;
• and
• adapting, by the backup node, performance of obtaining additional updates to the data volume according to the peer-to-peer replication scheme based, at least in part, on the detected configuration change.