16. Disaster Recovery : DataNode Recovery
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DataNode Recovery
If a Hadoop DataNode that is part of the VectorH cluster fails, and your system uses YARN, then failover is automatic. For more information, see Configuring VectorH with High Availability in YARN.
If your system does not use YARN, you can manually remove the failing node and then add another node to the VectorH cluster. For details, see How to Add and Remove Slave Nodes.