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

Example 1 with ClusterMember

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

the class ReadReplicaReplicationIT method aReadReplicShouldBeAbleToRejoinTheCluster.

@Test
public void aReadReplicShouldBeAbleToRejoinTheCluster() throws Exception {
    int readReplicaId = 4;
    Cluster cluster = clusterRule.withNumberOfReadReplicas(0).startCluster();
    cluster.coreTx(createSomeData);
    cluster.addReadReplicaWithId(readReplicaId).start();
    // let's spend some time by adding more data
    cluster.coreTx(createSomeData);
    awaitEx(() -> readReplicasUpToDateAsTheLeader(cluster.awaitLeader(), cluster.readReplicas()), 1, TimeUnit.MINUTES);
    cluster.removeReadReplicaWithMemberId(readReplicaId);
    // let's spend some time by adding more data
    cluster.coreTx(createSomeData);
    cluster.addReadReplicaWithId(readReplicaId).start();
    awaitEx(() -> readReplicasUpToDateAsTheLeader(cluster.awaitLeader(), cluster.readReplicas()), 1, TimeUnit.MINUTES);
    Function<ClusterMember, DbRepresentation> toRep = db -> DbRepresentation.of(db.database());
    Set<DbRepresentation> dbs = cluster.coreMembers().stream().map(toRep).collect(toSet());
    dbs.addAll(cluster.readReplicas().stream().map(toRep).collect(toSet()));
    cluster.shutdown();
    assertEquals(1, dbs.size());
}

Example 2 with ClusterMember

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

the class StartStopLoad method doWorkOnMember.

@Override
protected void doWorkOnMember(boolean isCore, int id) {
    ClusterMember member = isCore ? cluster.getCoreMemberById(id) : cluster.getReadReplicaById(id);
    String storeDir = member.database().getStoreDir();
    KernelExtensions kernelExtensions = member.database().getDependencyResolver().resolveDependency(KernelExtensions.class);
    member.shutdown();
    assertStoreConsistent(storeDir, kernelExtensions);
    LockSupport.parkNanos(5_000_000_000L);
    member.start();
}