import com.google.common.util.concurrent.FutureCallback;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
-import io.netty.util.Timeout;
-import io.netty.util.TimerTask;
import java.util.Iterator;
import java.util.Map;
import java.util.Optional;
-import java.util.concurrent.CancellationException;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.Future;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
-import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;
import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
+import org.opendaylight.openflowplugin.api.ConnectionException;
import org.opendaylight.openflowplugin.api.openflow.OFPContext;
+import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
import org.opendaylight.openflowplugin.api.openflow.device.DeviceState;
import org.opendaylight.openflowplugin.api.openflow.device.handlers.DeviceInitializationPhaseHandler;
import org.opendaylight.openflowplugin.api.openflow.device.handlers.DeviceTerminationPhaseHandler;
-import org.opendaylight.openflowplugin.api.openflow.lifecycle.LifecycleConductor;
import org.opendaylight.openflowplugin.api.openflow.lifecycle.LifecycleService;
import org.opendaylight.openflowplugin.api.openflow.rpc.ItemLifeCycleSource;
import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsContext;
import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import io.netty.util.HashedWheelTimer;
+import io.netty.util.Timeout;
+import io.netty.util.TimerTask;
public class StatisticsManagerImpl implements StatisticsManager, StatisticsManagerControlService {
private static final Logger LOG = LoggerFactory.getLogger(StatisticsManagerImpl.class);
private static final long DEFAULT_STATS_TIMEOUT_SEC = 50L;
- private final ConvertorExecutor convertorExecutor;
+ private final ConvertorExecutor converterExecutor;
private DeviceInitializationPhaseHandler deviceInitPhaseHandler;
- private DeviceTerminationPhaseHandler deviceTerminPhaseHandler;
+ private DeviceTerminationPhaseHandler deviceTerminationPhaseHandler;
private final ConcurrentMap<DeviceInfo, StatisticsContext> contexts = new ConcurrentHashMap<>();
- private static final long basicTimerDelay = 3000;
- private static long currentTimerDelay = basicTimerDelay;
- private static final long maximumTimerDelay = 900000; //wait max 15 minutes for next statistics
+ private static long basicTimerDelay;
+ private static long currentTimerDelay;
+ private static long maximumTimerDelay; //wait time for next statistics
private StatisticsWorkMode workMode = StatisticsWorkMode.COLLECTALL;
private final Semaphore workModeGuard = new Semaphore(1, true);
- private boolean shuttingDownStatisticsPolling;
+ private boolean isStatisticsPollingOn;
private BindingAwareBroker.RpcRegistration<StatisticsManagerControlService> controlServiceRegistration;
- private final LifecycleConductor conductor;
+ private final HashedWheelTimer hashedWheelTimer;
@Override
public void setDeviceInitializationPhaseHandler(final DeviceInitializationPhaseHandler handler) {
deviceInitPhaseHandler = handler;
}
- public StatisticsManagerImpl(@CheckForNull final RpcProviderRegistry rpcProviderRegistry,
- final boolean shuttingDownStatisticsPolling,
- final LifecycleConductor lifecycleConductor,
- final ConvertorExecutor convertorExecutor) {
- this.convertorExecutor = convertorExecutor;
+ public StatisticsManagerImpl(final RpcProviderRegistry rpcProviderRegistry,
+ final boolean isStatisticsPollingOn,
+ final HashedWheelTimer hashedWheelTimer,
+ final ConvertorExecutor convertorExecutor,
+ final long basicTimerDelay,
+ final long maximumTimerDelay) {
Preconditions.checkArgument(rpcProviderRegistry != null);
- this.controlServiceRegistration = Preconditions.checkNotNull(rpcProviderRegistry.addRpcImplementation(
- StatisticsManagerControlService.class, this));
- this.shuttingDownStatisticsPolling = shuttingDownStatisticsPolling;
- this.conductor = lifecycleConductor;
+ this.converterExecutor = convertorExecutor;
+ this.controlServiceRegistration = Preconditions.checkNotNull(
+ rpcProviderRegistry.addRpcImplementation(StatisticsManagerControlService.class, this)
+ );
+ this.isStatisticsPollingOn = isStatisticsPollingOn;
+ this.basicTimerDelay = basicTimerDelay;
+ this.currentTimerDelay = basicTimerDelay;
+ this.maximumTimerDelay = maximumTimerDelay;
+ this.hashedWheelTimer = hashedWheelTimer;
}
@Override
- public void onDeviceContextLevelUp(final DeviceInfo deviceInfo, LifecycleService lifecycleService) throws Exception {
+ public void onDeviceContextLevelUp(final DeviceInfo deviceInfo,
+ final LifecycleService lifecycleService) throws Exception {
+
+ final StatisticsContext statisticsContext =
+ new StatisticsContextImpl(
+ deviceInfo,
+ isStatisticsPollingOn,
+ lifecycleService,
+ converterExecutor,
+ this);
+
+ Verify.verify(
+ contexts.putIfAbsent(deviceInfo, statisticsContext) == null,
+ "StatisticsCtx still not closed for Node {}", deviceInfo.getLOGValue()
+ );
- final StatisticsContext statisticsContext = new StatisticsContextImpl(deviceInfo, shuttingDownStatisticsPolling, conductor, convertorExecutor);
- Verify.verify(contexts.putIfAbsent(deviceInfo, statisticsContext) == null, "StatisticsCtx still not closed for Node {}", deviceInfo.getNodeId());
lifecycleService.setStatContext(statisticsContext);
+ lifecycleService.registerDeviceRemovedHandler(this);
deviceInitPhaseHandler.onDeviceContextLevelUp(deviceInfo, lifecycleService);
}
final DeviceInfo deviceInfo) {
if (!statisticsContext.isSchedulingEnabled()) {
- LOG.debug("Disabling statistics scheduling for device: {}", deviceInfo.getNodeId());
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Disabled statistics scheduling for device: {}", deviceInfo.getNodeId().getValue());
+ }
return;
}
- if (!deviceState.isStatisticsPollingEnabled()) {
- LOG.debug("Statistics polling is currently disabled for device: {}", deviceInfo.getNodeId());
- scheduleNextPolling(deviceState, deviceInfo, statisticsContext, timeCounter);
- return;
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("POLLING ALL STATISTICS for device: {}", deviceInfo.getNodeId());
}
- LOG.debug("POLLING ALL STATISTICS for device: {}", deviceInfo.getNodeId());
timeCounter.markStart();
final ListenableFuture<Boolean> deviceStatisticsCollectionFuture = statisticsContext.gatherDynamicData();
Futures.addCallback(deviceStatisticsCollectionFuture, new FutureCallback<Boolean>() {
@Override
public void onFailure(@Nonnull final Throwable throwable) {
timeCounter.addTimeMark();
- LOG.warn("Statistics gathering for single node was not successful: {}", throwable.getMessage());
- LOG.trace("Statistics gathering for single node was not successful.. ", throwable);
+ LOG.warn("Statistics gathering for single node {} was not successful: {}", deviceInfo.getLOGValue(),
+ throwable.getMessage());
+ if (LOG.isTraceEnabled()) {
+ LOG.trace("Gathering for node {} failure: ", deviceInfo.getLOGValue(), throwable);
+ }
calculateTimerDelay(timeCounter);
- if (throwable instanceof CancellationException) {
- /* This often happens when something wrong with akka or DS, so closing connection will help to restart device **/
- conductor.closeConnection(deviceInfo);
+ if (throwable instanceof ConnectionException) {
+ // ConnectionException is raised by StatisticsContextImpl class when the connections
+ // move to RIP state. In this particular case, there is no need to reschedule
+ // because this statistics manager should be closed soon
+ LOG.warn("Node {} is no more connected, stopping the statistics collection",
+ deviceInfo.getLOGValue(),throwable);
+ stopScheduling(deviceInfo);
} else {
+ LOG.warn("Unexpected error occurred during statistics collection for node {}, rescheduling " +
+ "statistics collections", deviceInfo.getLOGValue(),throwable);
scheduleNextPolling(deviceState, deviceInfo, statisticsContext, timeCounter);
}
}
});
final long averageTime = TimeUnit.MILLISECONDS.toSeconds(timeCounter.getAverageTimeBetweenMarks());
- final long STATS_TIMEOUT_SEC = averageTime > 0 ? 3 * averageTime : DEFAULT_STATS_TIMEOUT_SEC;
+ final long statsTimeoutSec = averageTime > 0 ? 3 * averageTime : DEFAULT_STATS_TIMEOUT_SEC;
final TimerTask timerTask = timeout -> {
if (!deviceStatisticsCollectionFuture.isDone()) {
- LOG.info("Statistics collection for node {} still in progress even after {} secs", deviceInfo.getNodeId(), STATS_TIMEOUT_SEC);
+ LOG.info("Statistics collection for node {} still in progress even after {} secs", deviceInfo.getLOGValue(), statsTimeoutSec);
deviceStatisticsCollectionFuture.cancel(true);
}
};
- conductor.newTimeout(timerTask, STATS_TIMEOUT_SEC, TimeUnit.SECONDS);
+ hashedWheelTimer.newTimeout(timerTask, statsTimeoutSec, TimeUnit.SECONDS);
}
private void scheduleNextPolling(final DeviceState deviceState,
final DeviceInfo deviceInfo,
final StatisticsContext statisticsContext,
final TimeCounter timeCounter) {
- LOG.debug("SCHEDULING NEXT STATISTICS POLLING for device: {}", deviceInfo.getNodeId());
- if (!shuttingDownStatisticsPolling) {
- final Timeout pollTimeout = conductor.newTimeout(timeout -> pollStatistics(deviceState, statisticsContext, timeCounter, deviceInfo), currentTimerDelay, TimeUnit.MILLISECONDS);
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("SCHEDULING NEXT STATISTICS POLLING for device: {}", deviceInfo.getNodeId());
+ }
+ if (isStatisticsPollingOn) {
+ final Timeout pollTimeout = hashedWheelTimer.newTimeout(
+ timeout -> pollStatistics(
+ deviceState,
+ statisticsContext,
+ timeCounter,
+ deviceInfo),
+ currentTimerDelay,
+ TimeUnit.MILLISECONDS);
statisticsContext.setPollTimeout(pollTimeout);
}
}
@Override
public void onDeviceContextLevelDown(final DeviceInfo deviceInfo) {
- final StatisticsContext statisticsContext = contexts.remove(deviceInfo);
- if (null != statisticsContext) {
- LOG.trace("Removing device context from stack. No more statistics gathering for device: {}", deviceInfo.getNodeId());
- statisticsContext.close();
- }
- deviceTerminPhaseHandler.onDeviceContextLevelDown(deviceInfo);
+ Optional.ofNullable(contexts.get(deviceInfo)).ifPresent(OFPContext::close);
+ deviceTerminationPhaseHandler.onDeviceContextLevelDown(deviceInfo);
}
@Override
if (workModeGuard.tryAcquire()) {
final StatisticsWorkMode targetWorkMode = input.getMode();
if (!workMode.equals(targetWorkMode)) {
- shuttingDownStatisticsPolling = StatisticsWorkMode.FULLYDISABLED.equals(targetWorkMode);
+ isStatisticsPollingOn = !(StatisticsWorkMode.FULLYDISABLED.equals(targetWorkMode));
// iterate through stats-ctx: propagate mode
for (Map.Entry<DeviceInfo, StatisticsContext> entry : contexts.entrySet()) {
+ final DeviceInfo deviceInfo = entry.getKey();
+ final StatisticsContext statisticsContext = entry.getValue();
+ final DeviceContext deviceContext = statisticsContext.gainDeviceContext();
switch (targetWorkMode) {
case COLLECTALL:
- scheduleNextPolling(conductor.getDeviceContext(entry.getKey()).getDeviceState(), entry.getKey(), entry.getValue(), new TimeCounter());
- for (final ItemLifeCycleSource lifeCycleSource : conductor.getDeviceContext(entry.getKey()).getItemLifeCycleSourceRegistry().getLifeCycleSources()) {
+ scheduleNextPolling(statisticsContext.gainDeviceState(), deviceInfo, statisticsContext, new TimeCounter());
+ for (final ItemLifeCycleSource lifeCycleSource : deviceContext.getItemLifeCycleSourceRegistry().getLifeCycleSources()) {
lifeCycleSource.setItemLifecycleListener(null);
}
break;
case FULLYDISABLED:
- final Optional<Timeout> pollTimeout = entry.getValue().getPollTimeout();
+ final Optional<Timeout> pollTimeout = statisticsContext.getPollTimeout();
if (pollTimeout.isPresent()) {
pollTimeout.get().cancel();
}
- for (final ItemLifeCycleSource lifeCycleSource : conductor.getDeviceContext(entry.getKey()).getItemLifeCycleSourceRegistry().getLifeCycleSources()) {
- lifeCycleSource.setItemLifecycleListener(entry.getValue().getItemLifeCycleListener());
+ for (final ItemLifeCycleSource lifeCycleSource : deviceContext.getItemLifeCycleSourceRegistry().getLifeCycleSources()) {
+ lifeCycleSource.setItemLifecycleListener(statisticsContext.getItemLifeCycleListener());
}
break;
default:
@Override
public void startScheduling(final DeviceInfo deviceInfo) {
- if (shuttingDownStatisticsPolling) {
- LOG.info("Statistics are shut down for device: {}", deviceInfo.getNodeId());
+ if (!isStatisticsPollingOn) {
+ LOG.info("Statistics are shutdown for device: {}", deviceInfo.getNodeId());
return;
}
LOG.info("Scheduling statistics poll for device: {}", deviceInfo.getNodeId());
statisticsContext.setSchedulingEnabled(true);
- scheduleNextPolling(conductor.getDeviceContext(deviceInfo).getDeviceState(), deviceInfo, statisticsContext, new TimeCounter());
+ scheduleNextPolling(
+ statisticsContext.gainDeviceState(),
+ deviceInfo,
+ statisticsContext,
+ new TimeCounter()
+ );
}
@Override
public void stopScheduling(final DeviceInfo deviceInfo) {
- LOG.debug("Stopping statistics scheduling for device: {}", deviceInfo.getNodeId());
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Stopping statistics scheduling for device: {}", deviceInfo.getNodeId());
+ }
+
final StatisticsContext statisticsContext = contexts.get(deviceInfo);
if (statisticsContext == null) {
controlServiceRegistration.close();
controlServiceRegistration = null;
}
+
for (final Iterator<StatisticsContext> iterator = Iterators.consumingIterator(contexts.values().iterator());
iterator.hasNext();) {
iterator.next().close();
@Override
public void setDeviceTerminationPhaseHandler(final DeviceTerminationPhaseHandler handler) {
- this.deviceTerminPhaseHandler = handler;
+ this.deviceTerminationPhaseHandler = handler;
+ }
+
+ @Override
+ public void setIsStatisticsPollingOn(boolean isStatisticsPollingOn){
+ this.isStatisticsPollingOn = isStatisticsPollingOn;
+ }
+
+ public void onDeviceRemoved(DeviceInfo deviceInfo) {
+ contexts.remove(deviceInfo);
+ LOG.debug("Statistics context removed for node {}", deviceInfo.getLOGValue());
+ }
+
+ @Override
+ public void setBasicTimerDelay(final long basicTimerDelay) {
+ this.basicTimerDelay = basicTimerDelay;
}
@Override
- public <T extends OFPContext> T gainContext(DeviceInfo deviceInfo) {
- return (T) contexts.get(deviceInfo);
+ public void setMaximumTimerDelay(final long maximumTimerDelay) {
+ this.maximumTimerDelay = maximumTimerDelay;
}
}