Install the Neo4j read replicas
Before you can install the read replica, you need to verify that the core members have formed a cluster. For more information, see Verify the Neo4j cluster formation.
Read Replicas can only be installed after a cluster of at least three cores is formed. Otherwise, the helm install command throws the following error:
Error: template: neo4j-cluster-read-replica/templates/neo4j-auth.yaml:5:8: executing "neo4j-cluster-read-replica/templates/neo4j-auth.yaml" at <include "neo4j.checkIfClusterIsPresent" .>: error calling include: template: neo4j-cluster-read-replica/templates/_helpers.tpl:84:11: executing "neo4j.checkIfClusterIsPresent" at <fail "Cannot install Read Replica until a cluster of 3 or more cores is formed">: error calling fail: Cannot install Read Replica until a cluster of 3 or more cores is formed
Install the Neo4j read replica using
rr-1as a release name, the deployment rr-1.values.yaml file created in Create value.yaml files, and the neo4j/neo4j-cluster-read-replica Helm Chart:
helm install rr-1 neo4j/neo4j-cluster-read-replica -f rr-1.values.yamlExample output
NAME: rr-1 LAST DEPLOYED: Fri Nov 5 16:15:13 2021 NAMESPACE: default STATUS: deployed REVISION: 1 TEST SUITE: None NOTES: Thank you for installing neo4j-cluster-read-replica. Your release "rr-1" has been installed . The neo4j user's password has been set to "my-password". This release creates a single Neo4j Read Replica instance. It will not become ready until it is able to join a working Neo4j cluster. Graphs are everywhere!
Verify that the read replica has joined the cluster. See the next section Verify the read replica has joined the cluster.
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