Recommended Node Topology

The node topology described in this section enables you to gracefully migrate data off a node in order to decommission the node for replacement or maintenance while avoiding data under-replication.

  • Establish a /data topology path to serve as the default topology path for the volumes in that cluster.
  • Establish a /decommissioned topology path that is not assigned to any volumes.

It is recommended that CLDB and ZooKeeper nodes are not in the same topology as the data nodes to ensure fast failover of the failed data node in the event of a data node failure.