To perform a hot backup of the whole cluster while service is being continued, the above-mentioned backup operation needs to be carried out for all nodes constituting the cluster.
Following the creation example described in the previous section, we have the following view: We can differentiate three sections: Cluster Map(top left) represents the agents that make up the cluster and their status.
Following the creation example described in the previous section, we have the following view: We can differentiate three sections: Cluster Map(top left) represents the agents that make up the cluster and their status.
Change the node variables such as node 1, node 2, node 3 that constitute a cluster, and change the cluster variable such as cl1, user settings and database data where appropriate to suit the environment.
In a cluster tree, the nodes constituting a cluster under management, i. e the repository nodes(clusterName is the cluster under management) are displayed in a tree format.
System When other nodes that make up a cluster are detached from the service due to a failure, etc., and the number of nodes constituting a cluster drops below half of the value set.
Gs_admin needs to be installed on a machine in which nodes constituting a cluster have been started, or in a machine on the network with the same subnet and multicast distribution.
To perform an offline backup, stop all the nodes constituting the cluster, and backup the data under the storage directory of the database file of each node(directory indicated by dataStore/dbPath in gs_node. json).
When operating in a cloud environment, even when physical disk failure or processor failure is not intended, there may be multiple failures such as a failure in multiple nodes constituting a cluster, or a database failure in multiple nodes.
When the number of clusters constituting a cluster falls below half due to a failure in a node constituting the cluster and the cluster operation is disrupted, new nodes are added to a cluster and nodes with errors are restored. Cluster service is automatically restarted once a majority of the nodes has joined the cluster..
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