use of org.neo4j.cluster.protocol.heartbeat.Heartbeat in project neo4j by neo4j.
the class ObservedClusterMembersTest method joinedMemberShowsInList.
@Test
public void joinedMemberShowsInList() throws Exception {
// given
Cluster cluster = mock(Cluster.class);
Heartbeat heartbeat = mock(Heartbeat.class);
ClusterMemberEvents memberEvents = mock(ClusterMemberEvents.class);
ObservedClusterMembers members = new ObservedClusterMembers(logProvider, cluster, heartbeat, memberEvents, null);
ArgumentCaptor<ClusterListener> listener = ArgumentCaptor.forClass(ClusterListener.class);
verify(cluster).addClusterListener(listener.capture());
listener.getValue().enteredCluster(clusterConfiguration(clusterUri1, clusterUri2));
// when
listener.getValue().joinedCluster(clusterId3, clusterUri3);
// then
assertThat(members.getMembers(), hasItems(sameMemberAs(new ClusterMember(clusterId1)), sameMemberAs(new ClusterMember(clusterId2)), sameMemberAs(new ClusterMember(clusterId3))));
}
use of org.neo4j.cluster.protocol.heartbeat.Heartbeat in project neo4j by neo4j.
the class ObservedClusterMembersTest method shouldRegisterItselfOnListeners.
@Test
public void shouldRegisterItselfOnListeners() throws Exception {
// given
Cluster cluster = mock(Cluster.class);
Heartbeat heartbeat = mock(Heartbeat.class);
ClusterMemberEvents clusterMemberEvents = mock(ClusterMemberEvents.class);
// when
new ObservedClusterMembers(logProvider, cluster, heartbeat, clusterMemberEvents, null);
// then
verify(cluster).addClusterListener(Mockito.<ClusterListener>any());
verify(heartbeat).addHeartbeatListener(Mockito.<HeartbeatListener>any());
verify(clusterMemberEvents).addClusterMemberListener(Mockito.<ClusterMemberListener>any());
}
use of org.neo4j.cluster.protocol.heartbeat.Heartbeat in project neo4j by neo4j.
the class ObservedClusterMembersTest method missingMasterUnavailabilityEventForOtherInstanceStillRemovesBackupRole.
@Test
public void missingMasterUnavailabilityEventForOtherInstanceStillRemovesBackupRole() throws Exception {
// given
Cluster cluster = mock(Cluster.class);
Heartbeat heartbeat = mock(Heartbeat.class);
ClusterMemberEvents memberEvents = mock(ClusterMemberEvents.class);
ObservedClusterMembers members = new ObservedClusterMembers(logProvider, cluster, heartbeat, memberEvents, clusterId1);
// initialized with the members of the cluster
ArgumentCaptor<ClusterListener> listener = ArgumentCaptor.forClass(ClusterListener.class);
verify(cluster).addClusterListener(listener.capture());
listener.getValue().enteredCluster(clusterConfiguration(clusterUri1, clusterUri2, clusterUri3));
ArgumentCaptor<ClusterMemberListener> memberListener = ArgumentCaptor.forClass(ClusterMemberListener.class);
verify(memberEvents).addClusterMemberListener(memberListener.capture());
// instance 2 is available as MASTER and BACKUP
memberListener.getValue().memberIsAvailable(OnlineBackupKernelExtension.BACKUP, clusterId2, clusterUri2, StoreId.DEFAULT);
memberListener.getValue().memberIsAvailable(MASTER, clusterId2, clusterUri2, StoreId.DEFAULT);
// when - instance 2 becomes available as SLAVE
memberListener.getValue().memberIsAvailable(SLAVE, clusterId2, clusterUri2, StoreId.DEFAULT);
// then - instance 2 should be available ONLY as SLAVE
for (ClusterMember clusterMember : members.getMembers()) {
if (clusterMember.getInstanceId().equals(clusterId2)) {
assertThat(count(clusterMember.getRoles()), equalTo(1L));
assertThat(Iterables.single(clusterMember.getRoles()), equalTo(SLAVE));
// that's the only member we care about
break;
}
}
}
use of org.neo4j.cluster.protocol.heartbeat.Heartbeat in project neo4j by neo4j.
the class ObservedClusterMembersTest method failedThenAliveMemberShowsAsAlive.
@Test
public void failedThenAliveMemberShowsAsAlive() throws Exception {
// given
Cluster cluster = mock(Cluster.class);
Heartbeat heartbeat = mock(Heartbeat.class);
ClusterMemberEvents memberEvents = mock(ClusterMemberEvents.class);
ObservedClusterMembers members = new ObservedClusterMembers(logProvider, cluster, heartbeat, memberEvents, null);
ArgumentCaptor<ClusterListener> listener = ArgumentCaptor.forClass(ClusterListener.class);
verify(cluster).addClusterListener(listener.capture());
listener.getValue().enteredCluster(clusterConfiguration(clusterUri1, clusterUri2, clusterUri3));
ArgumentCaptor<HeartbeatListener> heartBeatListener = ArgumentCaptor.forClass(HeartbeatListener.class);
verify(heartbeat).addHeartbeatListener(heartBeatListener.capture());
// when
heartBeatListener.getValue().failed(clusterId1);
heartBeatListener.getValue().alive(clusterId1);
// then
assertThat(members.getMembers(), hasItem(sameMemberAs(new ClusterMember(clusterId1))));
}
use of org.neo4j.cluster.protocol.heartbeat.Heartbeat in project neo4j by neo4j.
the class ObservedClusterMembersTest method receivingInstanceFailureEventRemovesAllRolesForIt.
@Test
public void receivingInstanceFailureEventRemovesAllRolesForIt() throws Exception {
// given
Cluster cluster = mock(Cluster.class);
Heartbeat heartbeat = mock(Heartbeat.class);
ClusterMemberEvents memberEvents = mock(ClusterMemberEvents.class);
ObservedClusterMembers members = new ObservedClusterMembers(logProvider, cluster, heartbeat, memberEvents, clusterId1);
// initialized with the members of the cluster
ArgumentCaptor<ClusterListener> listener = ArgumentCaptor.forClass(ClusterListener.class);
verify(cluster).addClusterListener(listener.capture());
listener.getValue().enteredCluster(clusterConfiguration(clusterUri1, clusterUri2, clusterUri3));
ArgumentCaptor<ClusterMemberListener> memberListener = ArgumentCaptor.forClass(ClusterMemberListener.class);
verify(memberEvents).addClusterMemberListener(memberListener.capture());
// instance 2 is available as MASTER and BACKUP
memberListener.getValue().memberIsAvailable(OnlineBackupKernelExtension.BACKUP, clusterId2, clusterUri2, StoreId.DEFAULT);
memberListener.getValue().memberIsAvailable(MASTER, clusterId2, clusterUri2, StoreId.DEFAULT);
// when - instance 2 becomes failed
memberListener.getValue().memberIsFailed(clusterId2);
// then - instance 2 should not be available as any roles
for (ClusterMember clusterMember : members.getMembers()) {
if (clusterMember.getInstanceId().equals(clusterId2)) {
assertThat(count(clusterMember.getRoles()), equalTo(0L));
// that's the only member we care about
break;
}
}
}
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