Examples with Cluster org.neo4j.causalclustering.discovery.Cluster used on opensource projects

Example 51 with Cluster

use of org.neo4j.causalclustering.discovery.Cluster in project neo4j by neo4j.

the class ClusterOverviewIT method shouldDiscoverRemovalOfReadReplicas.

@Test
public void shouldDiscoverRemovalOfReadReplicas() throws Exception {
    // given
    clusterRule.withNumberOfCoreMembers(3);
    clusterRule.withNumberOfReadReplicas(3);
    Cluster cluster = clusterRule.startCluster();
    for (int coreServerId = 0; coreServerId < 3; coreServerId++) {
        assertEventualOverview(cluster, containsRole(READ_REPLICA, 3), coreServerId);
    }
    // when
    cluster.removeReadReplicaWithMemberId(0);
    cluster.removeReadReplicaWithMemberId(1);
    for (int coreServerId = 0; coreServerId < 3; coreServerId++) {
        // then
        assertEventualOverview(cluster, containsRole(READ_REPLICA, 1), coreServerId);
    }
}

Example 52 with Cluster

use of org.neo4j.causalclustering.discovery.Cluster in project neo4j by neo4j.

the class ClusterOverviewIT method shouldDiscoverRemovalOfCoreMembers.

@Test
public void shouldDiscoverRemovalOfCoreMembers() throws Exception {
    // given
    clusterRule.withNumberOfCoreMembers(5);
    clusterRule.withNumberOfReadReplicas(0);
    Cluster cluster = clusterRule.startCluster();
    for (int coreServerId = 0; coreServerId < 5; coreServerId++) {
        assertEventualOverview(cluster, allOf(containsRole(LEADER, 1), containsRole(FOLLOWER, 4)), coreServerId);
    }
    // when
    cluster.removeCoreMemberWithMemberId(0);
    cluster.removeCoreMemberWithMemberId(1);
    for (int coreServerId = 2; coreServerId < 5; coreServerId++) {
        // then
        assertEventualOverview(cluster, allOf(containsRole(LEADER, 1), containsRole(FOLLOWER, 2)), coreServerId);
    }
}