/** This is the main point of entry into the DSO client. */
public class DistributedObjectClient implements TCClient {
protected static final TCLogger DSO_LOGGER = CustomerLogging.getDSOGenericLogger();
private static final TCLogger CONSOLE_LOGGER = CustomerLogging.getConsoleLogger();
private static final int MAX_CONNECT_TRIES = -1;
private static final String L1VMShutdownHookName = "L1 VM Shutdown Hook";
private final ClientBuilder clientBuilder;
private final ClientConfig config;
private final ClusterInternal cluster;
private final TCThreadGroup threadGroup;
private final ThreadIDMap threadIDMap;
protected final PreparedComponentsFromL2Connection connectionComponents;
private final ProductID productId;
private ClientMessageChannel channel;
private ClientLockManager lockManager;
private CommunicationsManager communicationsManager;
private ClientHandshakeManager clientHandshakeManager;
private CounterManager counterManager;
private ThreadIDManager threadIDManager;
private final CallbackDumpHandler dumpHandler = new CallbackDumpHandler();
private TCMemoryManagerImpl tcMemManager;
private Stage<ClusterInternalEventsContext> clusterEventsStage;
private final TCSecurityManager securityManager;
private final String uuid;
private final String name;
private final TaskRunner taskRunner;
private ClientShutdownManager shutdownManager;
private final Thread shutdownAction;
private final SetOnceFlag clientStopped = new SetOnceFlag();
private final SetOnceFlag connectionMade = new SetOnceFlag();
private ClientEntityManager clientEntityManager;
private final StageManager communicationStageManager;
public DistributedObjectClient(
ClientConfig config,
TCThreadGroup threadGroup,
PreparedComponentsFromL2Connection connectionComponents,
ClusterInternal cluster) {
this(
config,
threadGroup,
connectionComponents,
cluster,
null,
UUID.NULL_ID.toString(),
"",
null);
}
public DistributedObjectClient(
ClientConfig config,
TCThreadGroup threadGroup,
PreparedComponentsFromL2Connection connectionComponents,
ClusterInternal cluster,
TCSecurityManager securityManager,
String uuid,
String name,
ProductID productId) {
this.productId = productId;
Assert.assertNotNull(config);
this.config = config;
this.securityManager = securityManager;
this.connectionComponents = connectionComponents;
this.cluster = cluster;
this.threadGroup = threadGroup;
this.threadIDMap = new ThreadIDMapImpl();
this.clientBuilder = createClientBuilder();
this.uuid = uuid;
this.name = name;
this.taskRunner = Runners.newDefaultCachedScheduledTaskRunner(threadGroup);
this.shutdownAction = new Thread(new ShutdownAction(), L1VMShutdownHookName);
Runtime.getRuntime().addShutdownHook(this.shutdownAction);
// We need a StageManager to create the SEDA stages used for handling the messages.
final SEDA<Void> seda = new SEDA<Void>(threadGroup);
communicationStageManager = seda.getStageManager();
this.tcMemManager = new TCMemoryManagerImpl(threadGroup);
}
protected ClientBuilder createClientBuilder() {
return new StandardClientBuilder();
}
@Override
public ThreadIDMap getThreadIDMap() {
return this.threadIDMap;
}
@Override
public void addAllLocksTo(LockInfoByThreadID lockInfo) {
if (this.lockManager != null) {
for (final ClientServerExchangeLockContext c : this.lockManager.getAllLockContexts()) {
switch (c.getState().getType()) {
case GREEDY_HOLDER:
case HOLDER:
lockInfo.addLock(LockState.HOLDING, c.getThreadID(), c.getLockID().toString());
break;
case WAITER:
lockInfo.addLock(LockState.WAITING_ON, c.getThreadID(), c.getLockID().toString());
break;
case TRY_PENDING:
case PENDING:
lockInfo.addLock(LockState.WAITING_TO, c.getThreadID(), c.getLockID().toString());
break;
default:
throw new AssertionError(c.getState().getType());
}
}
} else {
DSO_LOGGER.error("LockManager not initialised still. LockInfo for threads cannot be updated");
}
}
private void validateSecurityConfig() {
if (config.getSecurityInfo().isSecure() && securityManager == null) {
throw new TCRuntimeException(
"client configured as secure but was constructed without securityManager");
}
if (!config.getSecurityInfo().isSecure() && securityManager != null) {
throw new TCRuntimeException(
"client not configured as secure but was constructed with securityManager");
}
}
private ReconnectConfig getReconnectPropertiesFromServer() {
ReconnectConfig reconnectConfig =
new ReconnectConfig() {
@Override
public boolean getReconnectEnabled() {
return true;
}
@Override
public int getReconnectTimeout() {
return 5000;
}
@Override
public int getSendQueueCapacity() {
return 5000;
}
@Override
public int getMaxDelayAcks() {
return 16;
}
@Override
public int getSendWindow() {
return 32;
}
};
return reconnectConfig;
}
private NetworkStackHarnessFactory getNetworkStackHarnessFactory(
boolean useOOOLayer, ReconnectConfig l1ReconnectConfig) {
if (useOOOLayer) {
return new OOONetworkStackHarnessFactory(
new OnceAndOnlyOnceProtocolNetworkLayerFactoryImpl(), l1ReconnectConfig);
} else {
return new PlainNetworkStackHarnessFactory();
}
}
public Stage<ClusterInternalEventsContext> getClusterEventsStage() {
return clusterEventsStage;
}
public synchronized void start() {
validateSecurityConfig();
final TCProperties tcProperties = TCPropertiesImpl.getProperties();
final int maxSize = tcProperties.getInt(TCPropertiesConsts.L1_SEDA_STAGE_SINK_CAPACITY);
final SessionManager sessionManager =
new SessionManagerImpl(
new SessionManagerImpl.SequenceFactory() {
@Override
public Sequence newSequence() {
return new SimpleSequence();
}
});
this.threadGroup.addCallbackOnExitDefaultHandler(
new CallbackOnExitHandler() {
@Override
public void callbackOnExit(CallbackOnExitState state) {
cluster.fireNodeError();
}
});
this.dumpHandler.registerForDump(new CallbackDumpAdapter(this.communicationStageManager));
final ReconnectConfig l1ReconnectConfig = getReconnectPropertiesFromServer();
final boolean useOOOLayer = l1ReconnectConfig.getReconnectEnabled();
final NetworkStackHarnessFactory networkStackHarnessFactory =
getNetworkStackHarnessFactory(useOOOLayer, l1ReconnectConfig);
this.counterManager = new CounterManagerImpl();
final MessageMonitor mm = MessageMonitorImpl.createMonitor(tcProperties, DSO_LOGGER);
final TCMessageRouter messageRouter = new TCMessageRouterImpl();
this.communicationsManager =
this.clientBuilder.createCommunicationsManager(
mm,
messageRouter,
networkStackHarnessFactory,
new NullConnectionPolicy(),
this.connectionComponents.createConnectionInfoConfigItemByGroup().length,
new HealthCheckerConfigClientImpl(
tcProperties.getPropertiesFor(TCPropertiesConsts.L1_L2_HEALTH_CHECK_CATEGORY),
"DSO Client"),
getMessageTypeClassMapping(),
ReconnectionRejectedHandlerL1.SINGLETON,
securityManager,
productId);
DSO_LOGGER.debug("Created CommunicationsManager.");
final ConnectionInfoConfig[] connectionInfoItems =
this.connectionComponents.createConnectionInfoConfigItemByGroup();
final ConnectionInfo[] connectionInfo = connectionInfoItems[0].getConnectionInfos();
final String serverHost = connectionInfo[0].getHostname();
final int serverPort = connectionInfo[0].getPort();
clusterEventsStage =
this.communicationStageManager.createStage(
ClientConfigurationContext.CLUSTER_EVENTS_STAGE,
ClusterInternalEventsContext.class,
new ClusterInternalEventsHandler<ClusterInternalEventsContext>(cluster),
1,
maxSize);
final int socketConnectTimeout =
tcProperties.getInt(TCPropertiesConsts.L1_SOCKET_CONNECT_TIMEOUT);
if (socketConnectTimeout < 0) {
throw new IllegalArgumentException("invalid socket time value: " + socketConnectTimeout);
}
this.channel =
this.clientBuilder.createClientMessageChannel(
this.communicationsManager,
this.connectionComponents,
sessionManager,
MAX_CONNECT_TRIES,
socketConnectTimeout,
this);
final ClientIDLoggerProvider cidLoggerProvider = new ClientIDLoggerProvider(this.channel);
this.communicationStageManager.setLoggerProvider(cidLoggerProvider);
DSO_LOGGER.debug("Created channel.");
this.clientEntityManager =
this.clientBuilder.createClientEntityManager(this.channel, this.communicationStageManager);
RequestReceiveHandler receivingHandler = new RequestReceiveHandler(this.clientEntityManager);
Stage<VoltronEntityResponse> entityResponseStage =
this.communicationStageManager.createStage(
ClientConfigurationContext.VOLTRON_ENTITY_RESPONSE_STAGE,
VoltronEntityResponse.class,
receivingHandler,
1,
maxSize);
Stage<Void> serverMessageStage =
this.communicationStageManager.createStage(
ClientConfigurationContext.SERVER_ENTITY_MESSAGE_STAGE,
Void.class,
new ServerMessageReceiveHandler<Void>(channel),
1,
maxSize);
TerracottaOperatorEventLogging.setNodeNameProvider(new ClientNameProvider(this.cluster));
final SampledRateCounterConfig sampledRateCounterConfig =
new SampledRateCounterConfig(1, 300, true);
this.counterManager.createCounter(sampledRateCounterConfig);
this.counterManager.createCounter(sampledRateCounterConfig);
// for SRA L1 Tx count
final SampledCounterConfig sampledCounterConfig = new SampledCounterConfig(1, 300, true, 0L);
this.counterManager.createCounter(sampledCounterConfig);
this.threadGroup.addCallbackOnExitDefaultHandler(
new CallbackDumpAdapter(this.clientEntityManager));
this.dumpHandler.registerForDump(new CallbackDumpAdapter(this.clientEntityManager));
final long timeOut =
TCPropertiesImpl.getProperties().getLong(TCPropertiesConsts.LOGGING_LONG_GC_THRESHOLD);
final LongGCLogger gcLogger = this.clientBuilder.createLongGCLogger(timeOut);
this.tcMemManager.registerForMemoryEvents(gcLogger);
// CDV-1181 warn if using CMS
this.tcMemManager.checkGarbageCollectors();
this.threadIDManager = new ThreadIDManagerImpl(this.threadIDMap);
// Setup the lock manager
this.lockManager =
this.clientBuilder.createLockManager(
this.channel,
new ClientIDLogger(this.channel, TCLogging.getLogger(ClientLockManager.class)),
sessionManager,
this.channel.getLockRequestMessageFactory(),
this.threadIDManager,
new ClientLockManagerConfigImpl(
tcProperties.getPropertiesFor(TCPropertiesConsts.L1_LOCK_MANAGER_CATEGORY)),
this.taskRunner);
final CallbackDumpAdapter lockDumpAdapter = new CallbackDumpAdapter(this.lockManager);
this.threadGroup.addCallbackOnExitDefaultHandler(lockDumpAdapter);
this.dumpHandler.registerForDump(lockDumpAdapter);
// Create the SEDA stages
final Stage<Void> lockResponse =
this.communicationStageManager.createStage(
ClientConfigurationContext.LOCK_RESPONSE_STAGE,
Void.class,
new LockResponseHandler<Void>(sessionManager),
1,
maxSize);
final Stage<HydrateContext> hydrateStage =
this.communicationStageManager.createStage(
ClientConfigurationContext.HYDRATE_MESSAGE_STAGE,
HydrateContext.class,
new HydrateHandler(),
1,
maxSize);
// By design this stage needs to be single threaded. If it wasn't then cluster membership
// messages could get
// processed before the client handshake ack, and this client would get a faulty view of the
// cluster at best, or
// more likely an AssertionError
final Stage<PauseContext> pauseStage =
this.communicationStageManager.createStage(
ClientConfigurationContext.CLIENT_COORDINATION_STAGE,
PauseContext.class,
new ClientCoordinationHandler<PauseContext>(),
1,
maxSize);
final Sink<PauseContext> pauseSink = pauseStage.getSink();
final Stage<Void> clusterMembershipEventStage =
this.communicationStageManager.createStage(
ClientConfigurationContext.CLUSTER_MEMBERSHIP_EVENT_STAGE,
Void.class,
new ClusterMembershipEventsHandler<Void>(cluster),
1,
maxSize);
final List<ClientHandshakeCallback> clientHandshakeCallbacks =
new ArrayList<ClientHandshakeCallback>();
clientHandshakeCallbacks.add(this.lockManager);
clientHandshakeCallbacks.add(this.clientEntityManager);
final ProductInfo pInfo = ProductInfo.getInstance();
this.clientHandshakeManager =
this.clientBuilder.createClientHandshakeManager(
new ClientIDLogger(this.channel, TCLogging.getLogger(ClientHandshakeManagerImpl.class)),
this.channel.getClientHandshakeMessageFactory(),
pauseSink,
sessionManager,
cluster,
this.uuid,
this.name,
pInfo.version(),
Collections.unmodifiableCollection(clientHandshakeCallbacks));
ClientChannelEventController.connectChannelEventListener(
channel, pauseSink, clientHandshakeManager);
this.shutdownManager = new ClientShutdownManager(this, connectionComponents);
final ClientConfigurationContext cc =
new ClientConfigurationContext(
this.communicationStageManager,
this.lockManager,
this.clientEntityManager,
this.clientHandshakeManager);
// DO NOT create any stages after this call
this.communicationStageManager.startAll(cc, Collections.<PostInit>emptyList());
initChannelMessageRouter(
messageRouter,
hydrateStage.getSink(),
lockResponse.getSink(),
pauseSink,
clusterMembershipEventStage.getSink(),
entityResponseStage.getSink(),
serverMessageStage.getSink());
new Thread(
threadGroup,
new Runnable() {
public void run() {
while (!clientStopped.isSet()) {
try {
openChannel(serverHost, serverPort);
waitForHandshake();
connectionMade();
break;
} catch (InterruptedException ie) {
// We are in the process of letting the thread terminate so we don't handle this
// in a special way.
}
}
// don't reset interrupted, thread is done
}
},
"Connection Establisher - " + uuid)
.start();
}
private synchronized void connectionMade() {
connectionMade.attemptSet();
notifyAll();
}
public synchronized boolean waitForConnection(long timeout, TimeUnit units)
throws InterruptedException {
long left = timeout > 0 ? units.toMillis(timeout) : Long.MAX_VALUE;
while (!connectionMade.isSet() && left > 0) {
long start = System.currentTimeMillis();
this.wait(units.toMillis(timeout));
left -= (System.currentTimeMillis() - start);
}
return connectionMade.isSet();
}
private synchronized void openChannel(String serverHost, int serverPort)
throws InterruptedException {
while (!clientStopped.isSet()) {
try {
DSO_LOGGER.debug("Trying to open channel....");
final char[] pw;
if (config.getSecurityInfo().hasCredentials()) {
Assert.assertNotNull(securityManager);
pw =
securityManager.getPasswordForTC(
config.getSecurityInfo().getUsername(), serverHost, serverPort);
} else {
pw = null;
}
this.channel.open(pw);
DSO_LOGGER.debug("Channel open");
break;
} catch (final TCTimeoutException tcte) {
CONSOLE_LOGGER.warn("Timeout connecting to server: " + tcte.getMessage());
this.wait(5000);
} catch (final ConnectException e) {
CONSOLE_LOGGER.warn("Connection refused from server: " + e);
this.wait(5000);
} catch (final MaxConnectionsExceededException e) {
DSO_LOGGER.fatal(e.getMessage());
CONSOLE_LOGGER.fatal(e.getMessage());
throw new IllegalStateException(e.getMessage(), e);
} catch (final CommStackMismatchException e) {
DSO_LOGGER.fatal(e.getMessage());
CONSOLE_LOGGER.fatal(e.getMessage());
throw new IllegalStateException(e.getMessage(), e);
} catch (final IOException ioe) {
CONSOLE_LOGGER.warn(
"IOException connecting to server: "
+ serverHost
+ ":"
+ serverPort
+ ". "
+ ioe.getMessage());
this.wait(5000);
}
}
}
private synchronized void waitForHandshake() {
this.clientHandshakeManager.waitForHandshake();
if (this.channel != null) {
final TCSocketAddress remoteAddress = this.channel.getRemoteAddress();
final String infoMsg = "Connection successfully established to server at " + remoteAddress;
CONSOLE_LOGGER.info(infoMsg);
DSO_LOGGER.info(infoMsg);
}
}
private Map<TCMessageType, Class<? extends TCMessage>> getMessageTypeClassMapping() {
final Map<TCMessageType, Class<? extends TCMessage>> messageTypeClassMapping =
new HashMap<TCMessageType, Class<? extends TCMessage>>();
messageTypeClassMapping.put(TCMessageType.LOCK_REQUEST_MESSAGE, LockRequestMessage.class);
messageTypeClassMapping.put(TCMessageType.LOCK_RESPONSE_MESSAGE, LockResponseMessage.class);
messageTypeClassMapping.put(TCMessageType.LOCK_RECALL_MESSAGE, LockResponseMessage.class);
messageTypeClassMapping.put(
TCMessageType.LOCK_QUERY_RESPONSE_MESSAGE, LockResponseMessage.class);
messageTypeClassMapping.put(
TCMessageType.CLIENT_HANDSHAKE_MESSAGE, ClientHandshakeMessageImpl.class);
messageTypeClassMapping.put(
TCMessageType.CLIENT_HANDSHAKE_ACK_MESSAGE, ClientHandshakeAckMessageImpl.class);
messageTypeClassMapping.put(
TCMessageType.CLIENT_HANDSHAKE_REFUSED_MESSAGE, ClientHandshakeRefusedMessageImpl.class);
messageTypeClassMapping.put(
TCMessageType.CLUSTER_MEMBERSHIP_EVENT_MESSAGE, ClusterMembershipMessage.class);
messageTypeClassMapping.put(
TCMessageType.LIST_REGISTERED_SERVICES_MESSAGE, ListRegisteredServicesMessage.class);
messageTypeClassMapping.put(
TCMessageType.LIST_REGISTERED_SERVICES_RESPONSE_MESSAGE,
ListRegisteredServicesResponseMessage.class);
messageTypeClassMapping.put(
TCMessageType.INVOKE_REGISTERED_SERVICE_MESSAGE, InvokeRegisteredServiceMessage.class);
messageTypeClassMapping.put(
TCMessageType.INVOKE_REGISTERED_SERVICE_RESPONSE_MESSAGE,
InvokeRegisteredServiceResponseMessage.class);
messageTypeClassMapping.put(
TCMessageType.VOLTRON_ENTITY_MESSAGE, NetworkVoltronEntityMessageImpl.class);
messageTypeClassMapping.put(
TCMessageType.VOLTRON_ENTITY_RECEIVED_RESPONSE, VoltronEntityReceivedResponseImpl.class);
messageTypeClassMapping.put(
TCMessageType.VOLTRON_ENTITY_APPLIED_RESPONSE, VoltronEntityAppliedResponseImpl.class);
messageTypeClassMapping.put(
TCMessageType.VOLTRON_ENTITY_RETIRED_RESPONSE, VoltronEntityRetiredResponseImpl.class);
messageTypeClassMapping.put(TCMessageType.SERVER_ENTITY_MESSAGE, ServerEntityMessageImpl.class);
messageTypeClassMapping.put(
TCMessageType.SERVER_ENTITY_RESPONSE_MESSAGE, ServerEntityResponseMessageImpl.class);
return messageTypeClassMapping;
}
private void initChannelMessageRouter(
TCMessageRouter messageRouter,
Sink<HydrateContext> hydrateSink,
Sink<Void> lockResponseSink,
Sink<PauseContext> pauseSink,
Sink<Void> clusterMembershipEventSink,
Sink<VoltronEntityResponse> responseSink,
Sink<Void> serverEntityMessageSink) {
messageRouter.routeMessageType(
TCMessageType.LOCK_RESPONSE_MESSAGE, lockResponseSink, hydrateSink);
messageRouter.routeMessageType(
TCMessageType.LOCK_QUERY_RESPONSE_MESSAGE, lockResponseSink, hydrateSink);
messageRouter.routeMessageType(
TCMessageType.LOCK_RECALL_MESSAGE, lockResponseSink, hydrateSink);
messageRouter.routeMessageType(
TCMessageType.CLIENT_HANDSHAKE_ACK_MESSAGE, pauseSink, hydrateSink);
messageRouter.routeMessageType(
TCMessageType.CLIENT_HANDSHAKE_REFUSED_MESSAGE, pauseSink, hydrateSink);
messageRouter.routeMessageType(
TCMessageType.CLUSTER_MEMBERSHIP_EVENT_MESSAGE, clusterMembershipEventSink, hydrateSink);
messageRouter.routeMessageType(
TCMessageType.VOLTRON_ENTITY_RECEIVED_RESPONSE, responseSink, hydrateSink);
messageRouter.routeMessageType(
TCMessageType.VOLTRON_ENTITY_APPLIED_RESPONSE, responseSink, hydrateSink);
messageRouter.routeMessageType(
TCMessageType.VOLTRON_ENTITY_RETIRED_RESPONSE, responseSink, hydrateSink);
messageRouter.routeMessageType(
TCMessageType.SERVER_ENTITY_MESSAGE, serverEntityMessageSink, hydrateSink);
DSO_LOGGER.debug("Added message routing types.");
}
public ClientLockManager getLockManager() {
return this.lockManager;
}
public ClientEntityManager getEntityManager() {
return this.clientEntityManager;
}
public CommunicationsManager getCommunicationsManager() {
return this.communicationsManager;
}
public ClientMessageChannel getChannel() {
return this.channel;
}
public ClientHandshakeManager getClientHandshakeManager() {
return this.clientHandshakeManager;
}
@Override
public void dump() {
this.dumpHandler.dump();
}
protected ClientConfig getClientConfigHelper() {
return this.config;
}
public void shutdown() {
shutdown(false, false);
}
void shutdownResources() {
final TCLogger logger = DSO_LOGGER;
if (this.counterManager != null) {
try {
this.counterManager.shutdown();
} catch (final Throwable t) {
logger.error("error shutting down counter manager", t);
} finally {
this.counterManager = null;
}
}
if (this.tcMemManager != null) {
try {
this.tcMemManager.shutdown();
} catch (final Throwable t) {
logger.error("Error stopping memory manager", t);
} finally {
this.tcMemManager = null;
}
}
if (this.lockManager != null) {
try {
this.lockManager.shutdown(false);
} catch (final Throwable t) {
logger.error("Error stopping lock manager", t);
} finally {
this.lockManager = null;
}
}
try {
this.communicationStageManager.stopAll();
} catch (final Throwable t) {
logger.error("Error stopping stage manager", t);
}
if (this.channel != null) {
try {
this.channel.close();
} catch (final Throwable t) {
logger.error("Error closing channel", t);
} finally {
this.channel = null;
}
}
if (this.communicationsManager != null) {
try {
this.communicationsManager.shutdown();
} catch (final Throwable t) {
logger.error("Error shutting down communications manager", t);
} finally {
this.communicationsManager = null;
}
}
if (taskRunner != null) {
logger.info("Shutting down TaskRunner");
taskRunner.shutdown();
}
CommonShutDownHook.shutdown();
this.cluster.shutdown();
if (this.threadGroup != null) {
boolean interrupted = false;
try {
final long end =
System.currentTimeMillis()
+ TCPropertiesImpl.getProperties()
.getLong(TCPropertiesConsts.L1_SHUTDOWN_THREADGROUP_GRACETIME);
int threadCount = this.threadGroup.activeCount();
Thread[] t = new Thread[threadCount];
threadCount = this.threadGroup.enumerate(t);
final long time = System.currentTimeMillis();
for (int x = 0; x < threadCount; x++) {
long start = System.currentTimeMillis();
while (System.currentTimeMillis() < end && t[x].isAlive()) {
t[x].join(1000);
}
logger.info(
"Destroyed thread "
+ t[x].getName()
+ " time to destroy:"
+ (System.currentTimeMillis() - start)
+ " millis");
}
logger.info(
"time to destroy thread group:"
+ TimeUnit.SECONDS.convert(System.currentTimeMillis() - time, TimeUnit.MILLISECONDS)
+ " seconds");
if (this.threadGroup.activeCount() > 0) {
logger.warn(
"Timed out waiting for TC thread group threads to die - probable shutdown memory leak\n"
+ "Live threads: "
+ getLiveThreads(this.threadGroup));
Thread threadGroupCleanerThread =
new Thread(
this.threadGroup.getParent(),
new TCThreadGroupCleanerRunnable(threadGroup),
"TCThreadGroup last chance cleaner thread");
threadGroupCleanerThread.setDaemon(true);
threadGroupCleanerThread.start();
logger.warn("Spawning TCThreadGroup last chance cleaner thread");
} else {
logger.info("Destroying TC thread group");
this.threadGroup.destroy();
}
} catch (final Throwable t) {
logger.error("Error destroying TC thread group", t);
} finally {
if (interrupted) {
Thread.currentThread().interrupt();
}
}
}
if (TCPropertiesImpl.getProperties()
.getBoolean(TCPropertiesConsts.L1_SHUTDOWN_FORCE_FINALIZATION)) System.runFinalization();
}
private static List<Thread> getLiveThreads(ThreadGroup group) {
final int estimate = group.activeCount();
Thread[] threads = new Thread[estimate + 1];
while (true) {
final int count = group.enumerate(threads);
if (count < threads.length) {
final List<Thread> l = new ArrayList<Thread>(count);
for (final Thread t : threads) {
if (t != null) {
l.add(t);
}
}
return l;
} else {
threads = new Thread[threads.length * 2];
}
}
}
@Override
public String[] processArguments() {
return null;
}
@Override
public String getUUID() {
return uuid;
}
private static class TCThreadGroupCleanerRunnable implements Runnable {
private final TCThreadGroup threadGroup;
public TCThreadGroupCleanerRunnable(TCThreadGroup threadGroup) {
this.threadGroup = threadGroup;
}
@Override
public void run() {
while (threadGroup.activeCount() > 0) {
for (Thread liveThread : getLiveThreads(threadGroup)) {
liveThread.interrupt();
}
try {
Thread.sleep(1000);
} catch (final InterruptedException e) {
// ignore
}
}
try {
threadGroup.destroy();
} catch (Exception e) {
// the logger is closed by now so we can't even log that
}
}
}
public Cluster getCluster() {
return this.cluster;
}
private void shutdownClient(boolean fromShutdownHook, boolean forceImmediate) {
if (this.shutdownManager != null) {
try {
this.shutdownManager.execute(fromShutdownHook, forceImmediate);
} finally {
// If we're not being called as a result of the shutdown hook, de-register the hook
if (Thread.currentThread() != this.shutdownAction) {
try {
Runtime.getRuntime().removeShutdownHook(this.shutdownAction);
} catch (final Exception e) {
// ignore
}
}
}
}
}
private void shutdown(boolean fromShutdownHook, boolean forceImmediate) {
if (clientStopped.attemptSet()) {
DSO_LOGGER.info(
"shuting down Terracotta Client hook=" + fromShutdownHook + " force=" + forceImmediate);
shutdownClient(fromShutdownHook, forceImmediate);
} else {
DSO_LOGGER.info("Client already shutdown.");
}
synchronized (this) {
// notify in case the connection establisher is waiting for something
notifyAll();
}
}
private class ShutdownAction implements Runnable {
@Override
public void run() {
DSO_LOGGER.info("Running L1 VM shutdown hook");
shutdown(true, false);
}
}
}