8.4. Maintaining and Repairing Your Cluster Manually

If you are using the VoltDB Community Edition, you can maintain, repair, and recover your database cluster manually using the VoltDB system procedures and command line options. If a node fails when a cluster is running with K-safety, it is possible to have the node rejoin the cluster using the rejoin action on the command line. See the section on "Recovering from System Failures" in the Using VoltDB manual for information on using rejoin.

You can also initiate and restore manual snapshots using the voltadmin save and voltadmin restore commands. See the section on "Performing a Manual Save and Restore of a VoltDB Cluster" in the Using VoltDB manual for details.