@Test
public void submitCallablePartitionAware_WithExecutionCallback() throws Exception {
IExecutorService service = client.getExecutorService(randomString());
String mapName = randomString();
IMap map = client.getMap(mapName);
String key = HazelcastTestSupport.generateKeyOwnedBy(server);
Member member = server.getCluster().getLocalMember();
Callable<String> runnable = new MapPutPartitionAwareCallable<String, String>(mapName, key);
final AtomicReference<String> result = new AtomicReference<String>();
final CountDownLatch responseLatch = new CountDownLatch(1);
service.submit(
runnable,
new ExecutionCallback<String>() {
public void onResponse(String response) {
result.set(response);
responseLatch.countDown();
}
public void onFailure(Throwable t) {}
});
assertOpenEventually("responseLatch", responseLatch);
assertEquals(member.getUuid(), result.get());
assertTrue(map.containsKey(member.getUuid()));
}
@Test
public void submitCallablePartitionAware() throws Exception {
IExecutorService service = client.getExecutorService(randomString());
String mapName = randomString();
IMap map = client.getMap(mapName);
String key = HazelcastTestSupport.generateKeyOwnedBy(server);
Member member = server.getCluster().getLocalMember();
Callable<String> callable = new MapPutPartitionAwareCallable<String, String>(mapName, key);
Future<String> result = service.submit(callable);
assertEquals(member.getUuid(), result.get());
assertTrue(map.containsKey(member.getUuid()));
}
@Test
public void submitRunnablePartitionAware_withExecutionCallback() throws Exception {
IExecutorService service = client.getExecutorService(randomString());
String mapName = randomString();
String key = HazelcastTestSupport.generateKeyOwnedBy(server);
Member member = server.getCluster().getLocalMember();
Runnable runnable = new MapPutPartitionAwareRunnable<String>(mapName, key);
final CountDownLatch responseLatch = new CountDownLatch(1);
service.submit(
runnable,
new ExecutionCallback() {
@Override
public void onResponse(Object response) {
responseLatch.countDown();
}
@Override
public void onFailure(Throwable t) {}
});
IMap map = client.getMap(mapName);
assertOpenEventually("responseLatch", responseLatch);
assertTrue(map.containsKey(member.getUuid()));
}
@Test
public void testSubmitCallableToMember_withExecutionCallback() throws Exception {
IExecutorService service = client.getExecutorService(randomString());
Callable getUuidCallable = new GetMemberUuidTask();
Member member = server.getCluster().getLocalMember();
final CountDownLatch responseLatch = new CountDownLatch(1);
final AtomicReference<Object> result = new AtomicReference<Object>();
service.submitToMember(
getUuidCallable,
member,
new ExecutionCallback() {
@Override
public void onResponse(Object response) {
result.set(response);
responseLatch.countDown();
}
@Override
public void onFailure(Throwable t) {}
});
assertOpenEventually("responseLatch", responseLatch);
assertEquals(member.getUuid(), result.get());
}
private List<MembershipEvent> detectMembershipEvents(Map<String, Member> prevMembers) {
final List<MembershipEvent> events = new LinkedList<MembershipEvent>();
final Set<Member> eventMembers =
Collections.unmodifiableSet(new LinkedHashSet<Member>(members));
for (Member member : members) {
final Member former = prevMembers.remove(member.getUuid());
if (former == null) {
events.add(
new MembershipEvent(
client.getCluster(), member, MembershipEvent.MEMBER_ADDED, eventMembers));
}
}
for (Member member : prevMembers.values()) {
events.add(
new MembershipEvent(
client.getCluster(), member, MembershipEvent.MEMBER_REMOVED, eventMembers));
Address address = member.getAddress();
if (clusterService.getMember(address) == null) {
final Connection connection = connectionManager.getConnection(address);
if (connection != null) {
connectionManager.destroyConnection(connection);
}
}
}
return events;
}
HazelcastNodeStatus(final Member member_) {
super(
member_.getUuid(),
member_.isLiteMember() ? "client" : "node",
member_.getInetSocketAddress().toString());
member = member_;
}
@Override
public List<PartitionQuery<K, T>> getPartitions(Query<K, T> query) throws IOException {
List<PartitionQuery<K, T>> partitions = new ArrayList<>();
try {
Member[] clusterMembers = new Member[hazelcastInstance.getCluster().getMembers().size()];
this.hazelcastInstance.getCluster().getMembers().toArray(clusterMembers);
for (Member member : clusterMembers) {
JCacheResult<K, T> result = ((JCacheResult<K, T>) query.execute());
ConcurrentSkipListSet<K> memberOwnedCacheEntries = new ConcurrentSkipListSet<>();
while (result.next()) {
K key = result.getKey();
Partition partition = hazelcastInstance.getPartitionService().getPartition(key);
if (partition.getOwner().getUuid().equals(member.getUuid())) {
memberOwnedCacheEntries.add(key);
}
}
PartitionQueryImpl<K, T> partition =
new PartitionQueryImpl<>(
query,
memberOwnedCacheEntries.first(),
memberOwnedCacheEntries.last(),
member.getSocketAddress().getHostString());
partition.setConf(this.getConf());
partitions.add(partition);
}
} catch (java.lang.Exception ex) {
LOG.error(
"Exception occurred while partitioning the query based on Hazelcast partitions.", ex);
return null;
}
LOG.info("Query is partitioned to {} number of partitions.", partitions.size());
return partitions;
}
public Member startMember(String clusterId) throws ServerException {
LOG.info("Starting a Member on cluster : " + clusterId);
HzCluster hzCluster = clusterMap.get(clusterId);
if (hzCluster != null) {
Config config = hzCluster.getConfig();
LOG.info(config.getNetworkConfig().getJoin().getTcpIpConfig());
HazelcastInstance hzInstance = Hazelcast.newHazelcastInstance(config);
com.hazelcast.core.Member member = hzInstance.getCluster().getLocalMember();
if (hzCluster.addInstance(member.getUuid(), hzInstance)) {
return new Member(
member.getUuid(), member.getAddress().getHost(), member.getAddress().getPort());
}
}
throw new ServerException("Cannot find Cluster with id:" + clusterId);
}
protected void destroyCacheOnAllMembers(String name, String callerUuid) {
final OperationService operationService = nodeEngine.getOperationService();
final Collection<Member> members = nodeEngine.getClusterService().getMembers();
for (Member member : members) {
if (!member.localMember() && !member.getUuid().equals(callerUuid)) {
final CacheDestroyOperation op = new CacheDestroyOperation(name, true);
operationService.invokeOnTarget(AbstractCacheService.SERVICE_NAME, op, member.getAddress());
}
}
}
/**
* This is triggered when a new member joined to the cluster.
*
* @param membershipEvent contains the information about the added node.
*/
@Override
public void memberAdded(MembershipEvent membershipEvent) {
Member member = membershipEvent.getMember();
log.info(
"Handling cluster gossip: New member joined to the cluster. Member Socket Address:"
+ member.getSocketAddress()
+ " UUID:"
+ member.getUuid());
ClusterResourceHolder.getInstance().getClusterManager().memberAdded();
}
public static void encode(Member member, ClientMessage clientMessage) {
AddressCodec.encode(member.getAddress(), clientMessage);
clientMessage.set(member.getUuid());
Map<String, Object> attributes = new HashMap<String, Object>(member.getAttributes());
clientMessage.set(attributes.size());
for (Map.Entry<String, Object> entry : attributes.entrySet()) {
clientMessage.set(entry.getKey());
Object value = entry.getValue();
clientMessage.set(value.toString());
}
}
@Test
public void testSubmitCallableToMember() throws Exception {
IExecutorService service = client.getExecutorService(randomString());
Callable<String> getUuidCallable = new GetMemberUuidTask();
Member member = server.getCluster().getLocalMember();
Future<String> result = service.submitToMember(getUuidCallable, member);
assertEquals(member.getUuid(), result.get());
}
public static int calculateDataSize(Member member) {
int dataSize = AddressCodec.calculateDataSize(member.getAddress());
dataSize += ParameterUtil.calculateDataSize(member.getUuid());
dataSize += Bits.INT_SIZE_IN_BYTES;
Map<String, Object> attributes = member.getAttributes();
for (Map.Entry<String, Object> entry : attributes.entrySet()) {
dataSize += ParameterUtil.calculateDataSize(entry.getKey());
Object value = entry.getValue();
// TODO: this is costly to use toString
dataSize += ParameterUtil.calculateDataSize(value.toString());
}
return dataSize;
}
/**
* This is triggered when a node left the cluster.
*
* @param membershipEvent contains the information about the removed node.
*/
@Override
public void memberRemoved(MembershipEvent membershipEvent) {
Member member = membershipEvent.getMember();
log.info(
"Handling cluster gossip: A member left the cluster. Member Socket Address:"
+ member.getSocketAddress()
+ " UUID:"
+ member.getUuid());
ClusterManager clusterManager = ClusterResourceHolder.getInstance().getClusterManager();
try {
clusterManager.memberRemoved(member);
} catch (Exception e) {
log.error("Error while handling node removal, NodeID:" + clusterManager.getNodeId(member), e);
}
}
@Test
public void testSubmitCallableToMembers_withMemberSelector() throws Exception {
IExecutorService service = client.getExecutorService(randomString());
Callable<String> getUuidCallable = new GetMemberUuidTask();
MemberSelector selectAll = new SelectAllMembers();
Map<Member, Future<String>> map = service.submitToMembers(getUuidCallable, selectAll);
for (Member member : map.keySet()) {
Future<String> result = map.get(member);
String uuid = result.get();
assertEquals(member.getUuid(), uuid);
}
}
@Override
public void handle(String uuid, String key, int opType, String value) {
Map<Address, Member> memberMap = clusterService.getMembersRef();
if (memberMap == null) {
return;
}
for (Member target : memberMap.values()) {
if (target.getUuid().equals(uuid)) {
final MemberAttributeOperationType operationType =
MemberAttributeOperationType.getValue(opType);
((AbstractMember) target).updateAttribute(operationType, key, value);
MemberAttributeEvent memberAttributeEvent =
new MemberAttributeEvent(client.getCluster(), target, operationType, key, value);
clusterService.fireMemberAttributeEvent(memberAttributeEvent);
break;
}
}
}
@Test
public void testExecuteOnMember() {
final IExecutorService service = client.getExecutorService(randomString());
final String mapName = randomString();
final Member member = instance1.getCluster().getLocalMember();
final String targetUuid = member.getUuid();
service.executeOnMember(new MapPutRunnable(mapName), member);
final IMap map = client.getMap(mapName);
assertTrueEventually(
new AssertTask() {
public void run() throws Exception {
assertTrue(map.containsKey(targetUuid));
}
});
}
@Override
public void handle(Set<Member> initialMembers) {
Map<String, Member> prevMembers = Collections.emptyMap();
if (!members.isEmpty()) {
prevMembers = new HashMap<String, Member>(members.size());
for (Member member : members) {
prevMembers.put(member.getUuid(), member);
}
members.clear();
}
for (Member initialMember : initialMembers) {
members.add(initialMember);
}
final List<MembershipEvent> events = detectMembershipEvents(prevMembers);
if (events.size() != 0) {
applyMemberListChanges();
}
fireMembershipEvent(events);
initialListFetchedLatch.countDown();
}
private String getIdFromMember(Member member) {
return member.getUuid();
}