2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.openflowplugin.impl.statistics;
11 import com.google.common.annotations.VisibleForTesting;
12 import com.google.common.base.Preconditions;
13 import com.google.common.base.Verify;
14 import com.google.common.collect.Iterators;
15 import com.google.common.util.concurrent.FutureCallback;
16 import com.google.common.util.concurrent.Futures;
17 import com.google.common.util.concurrent.ListenableFuture;
18 import io.netty.util.HashedWheelTimer;
19 import io.netty.util.Timeout;
20 import io.netty.util.TimerTask;
21 import java.util.Iterator;
23 import java.util.Optional;
24 import java.util.concurrent.ConcurrentHashMap;
25 import java.util.concurrent.ConcurrentMap;
26 import java.util.concurrent.Future;
27 import java.util.concurrent.Semaphore;
28 import java.util.concurrent.TimeUnit;
29 import javax.annotation.Nonnull;
30 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
31 import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
32 import org.opendaylight.openflowplugin.api.openflow.OFPContext;
33 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
34 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
35 import org.opendaylight.openflowplugin.api.openflow.device.DeviceState;
36 import org.opendaylight.openflowplugin.api.openflow.device.handlers.DeviceInitializationPhaseHandler;
37 import org.opendaylight.openflowplugin.api.openflow.device.handlers.DeviceTerminationPhaseHandler;
38 import org.opendaylight.openflowplugin.api.openflow.lifecycle.LifecycleService;
39 import org.opendaylight.openflowplugin.api.openflow.rpc.ItemLifeCycleSource;
40 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsContext;
41 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsManager;
42 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorExecutor;
43 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.ChangeStatisticsWorkModeInput;
44 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeOutput;
45 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.GetStatisticsWorkModeOutputBuilder;
46 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.StatisticsManagerControlService;
47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.openflowplugin.sm.control.rev150812.StatisticsWorkMode;
48 import org.opendaylight.yangtools.yang.common.RpcError;
49 import org.opendaylight.yangtools.yang.common.RpcResult;
50 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
51 import org.slf4j.Logger;
52 import org.slf4j.LoggerFactory;
54 public class StatisticsManagerImpl implements StatisticsManager, StatisticsManagerControlService {
56 private static final Logger LOG = LoggerFactory.getLogger(StatisticsManagerImpl.class);
58 private static final long DEFAULT_STATS_TIMEOUT_SEC = 50L;
59 private final ConvertorExecutor converterExecutor;
61 private DeviceInitializationPhaseHandler deviceInitPhaseHandler;
62 private DeviceTerminationPhaseHandler deviceTerminationPhaseHandler;
64 private final ConcurrentMap<DeviceInfo, StatisticsContext> contexts = new ConcurrentHashMap<>();
66 private static final long basicTimerDelay = 3000;
67 private static long currentTimerDelay = basicTimerDelay;
68 private static final long maximumTimerDelay = 900000; //wait max 15 minutes for next statistics
70 private StatisticsWorkMode workMode = StatisticsWorkMode.COLLECTALL;
71 private final Semaphore workModeGuard = new Semaphore(1, true);
72 private boolean isStatisticsPollingOff;
73 private BindingAwareBroker.RpcRegistration<StatisticsManagerControlService> controlServiceRegistration;
75 private final HashedWheelTimer hashedWheelTimer;
78 public void setDeviceInitializationPhaseHandler(final DeviceInitializationPhaseHandler handler) {
79 deviceInitPhaseHandler = handler;
82 public StatisticsManagerImpl(final RpcProviderRegistry rpcProviderRegistry,
83 final boolean isStatisticsPollingOff,
84 final HashedWheelTimer hashedWheelTimer,
85 final ConvertorExecutor convertorExecutor) {
86 Preconditions.checkArgument(rpcProviderRegistry != null);
87 this.converterExecutor = convertorExecutor;
88 this.controlServiceRegistration = Preconditions.checkNotNull(
89 rpcProviderRegistry.addRpcImplementation(StatisticsManagerControlService.class, this)
91 this.isStatisticsPollingOff = isStatisticsPollingOff;
92 this.hashedWheelTimer = hashedWheelTimer;
96 public void onDeviceContextLevelUp(final DeviceInfo deviceInfo,
97 final LifecycleService lifecycleService) throws Exception {
99 final StatisticsContext statisticsContext =
100 new StatisticsContextImpl(
102 isStatisticsPollingOff,
108 contexts.putIfAbsent(deviceInfo, statisticsContext) == null,
109 "StatisticsCtx still not closed for Node {}", deviceInfo.getLOGValue()
112 lifecycleService.setStatContext(statisticsContext);
113 lifecycleService.registerDeviceRemovedHandler(this);
114 deviceInitPhaseHandler.onDeviceContextLevelUp(deviceInfo, lifecycleService);
118 void pollStatistics(final DeviceState deviceState,
119 final StatisticsContext statisticsContext,
120 final TimeCounter timeCounter,
121 final DeviceInfo deviceInfo) {
123 if (!statisticsContext.isSchedulingEnabled()) {
124 if (LOG.isDebugEnabled()) {
125 LOG.debug("Disabled statistics scheduling for device: {}", deviceInfo.getNodeId().getValue());
130 if (LOG.isDebugEnabled()) {
131 LOG.debug("POLLING ALL STATISTICS for device: {}", deviceInfo.getNodeId());
134 timeCounter.markStart();
135 final ListenableFuture<Boolean> deviceStatisticsCollectionFuture = statisticsContext.gatherDynamicData();
136 Futures.addCallback(deviceStatisticsCollectionFuture, new FutureCallback<Boolean>() {
138 public void onSuccess(final Boolean o) {
139 timeCounter.addTimeMark();
140 calculateTimerDelay(timeCounter);
141 scheduleNextPolling(deviceState, deviceInfo, statisticsContext, timeCounter);
145 public void onFailure(@Nonnull final Throwable throwable) {
146 timeCounter.addTimeMark();
147 LOG.warn("Statistics gathering for single node {} was not successful: ", deviceInfo.getLOGValue(), throwable.getMessage());
148 if (LOG.isTraceEnabled()) {
149 LOG.trace("Gathering for node {} failure: ", deviceInfo.getLOGValue(), throwable);
151 calculateTimerDelay(timeCounter);
152 if (throwable instanceof IllegalStateException) {
153 stopScheduling(deviceInfo);
155 scheduleNextPolling(deviceState, deviceInfo, statisticsContext, timeCounter);
160 final long averageTime = TimeUnit.MILLISECONDS.toSeconds(timeCounter.getAverageTimeBetweenMarks());
161 final long statsTimeoutSec = averageTime > 0 ? 3 * averageTime : DEFAULT_STATS_TIMEOUT_SEC;
162 final TimerTask timerTask = timeout -> {
163 if (!deviceStatisticsCollectionFuture.isDone()) {
164 LOG.info("Statistics collection for node {} still in progress even after {} secs", deviceInfo.getLOGValue(), statsTimeoutSec);
165 deviceStatisticsCollectionFuture.cancel(true);
169 hashedWheelTimer.newTimeout(timerTask, statsTimeoutSec, TimeUnit.SECONDS);
172 private void scheduleNextPolling(final DeviceState deviceState,
173 final DeviceInfo deviceInfo,
174 final StatisticsContext statisticsContext,
175 final TimeCounter timeCounter) {
176 if (LOG.isDebugEnabled()) {
177 LOG.debug("SCHEDULING NEXT STATISTICS POLLING for device: {}", deviceInfo.getNodeId());
179 if (!isStatisticsPollingOff) {
180 final Timeout pollTimeout = hashedWheelTimer.newTimeout(
181 timeout -> pollStatistics(
187 TimeUnit.MILLISECONDS);
188 statisticsContext.setPollTimeout(pollTimeout);
193 void calculateTimerDelay(final TimeCounter timeCounter) {
194 final long averageStatisticsGatheringTime = timeCounter.getAverageTimeBetweenMarks();
195 if (averageStatisticsGatheringTime > currentTimerDelay) {
196 currentTimerDelay *= 2;
197 if (currentTimerDelay > maximumTimerDelay) {
198 currentTimerDelay = maximumTimerDelay;
201 if (currentTimerDelay > basicTimerDelay) {
202 currentTimerDelay /= 2;
204 currentTimerDelay = basicTimerDelay;
210 static long getCurrentTimerDelay() {
211 return currentTimerDelay;
215 public void onDeviceContextLevelDown(final DeviceInfo deviceInfo) {
216 Optional.ofNullable(contexts.get(deviceInfo)).ifPresent(OFPContext::close);
217 deviceTerminationPhaseHandler.onDeviceContextLevelDown(deviceInfo);
221 public Future<RpcResult<GetStatisticsWorkModeOutput>> getStatisticsWorkMode() {
222 final GetStatisticsWorkModeOutputBuilder smModeOutputBld = new GetStatisticsWorkModeOutputBuilder();
223 smModeOutputBld.setMode(workMode);
224 return RpcResultBuilder.success(smModeOutputBld.build()).buildFuture();
228 public Future<RpcResult<Void>> changeStatisticsWorkMode(ChangeStatisticsWorkModeInput input) {
229 final Future<RpcResult<Void>> result;
230 // acquire exclusive access
231 if (workModeGuard.tryAcquire()) {
232 final StatisticsWorkMode targetWorkMode = input.getMode();
233 if (!workMode.equals(targetWorkMode)) {
234 isStatisticsPollingOff = StatisticsWorkMode.FULLYDISABLED.equals(targetWorkMode);
235 // iterate through stats-ctx: propagate mode
236 for (Map.Entry<DeviceInfo, StatisticsContext> entry : contexts.entrySet()) {
237 final DeviceInfo deviceInfo = entry.getKey();
238 final StatisticsContext statisticsContext = entry.getValue();
239 final DeviceContext deviceContext = statisticsContext.gainDeviceContext();
240 switch (targetWorkMode) {
242 scheduleNextPolling(statisticsContext.gainDeviceState(), deviceInfo, statisticsContext, new TimeCounter());
243 for (final ItemLifeCycleSource lifeCycleSource : deviceContext.getItemLifeCycleSourceRegistry().getLifeCycleSources()) {
244 lifeCycleSource.setItemLifecycleListener(null);
248 final Optional<Timeout> pollTimeout = statisticsContext.getPollTimeout();
249 if (pollTimeout.isPresent()) {
250 pollTimeout.get().cancel();
252 for (final ItemLifeCycleSource lifeCycleSource : deviceContext.getItemLifeCycleSourceRegistry().getLifeCycleSources()) {
253 lifeCycleSource.setItemLifecycleListener(statisticsContext.getItemLifeCycleListener());
257 LOG.warn("Statistics work mode not supported: {}", targetWorkMode);
260 workMode = targetWorkMode;
262 workModeGuard.release();
263 result = RpcResultBuilder.<Void>success().buildFuture();
265 result = RpcResultBuilder.<Void>failed()
266 .withError(RpcError.ErrorType.APPLICATION, "mode change already in progress")
273 public void startScheduling(final DeviceInfo deviceInfo) {
274 if (isStatisticsPollingOff) {
275 LOG.info("Statistics are shutdown for device: {}", deviceInfo.getNodeId());
279 final StatisticsContext statisticsContext = contexts.get(deviceInfo);
281 if (statisticsContext == null) {
282 LOG.warn("Statistics context not found for device: {}", deviceInfo.getNodeId());
286 if (statisticsContext.isSchedulingEnabled()) {
287 LOG.debug("Statistics scheduling is already enabled for device: {}", deviceInfo.getNodeId());
291 LOG.info("Scheduling statistics poll for device: {}", deviceInfo.getNodeId());
293 statisticsContext.setSchedulingEnabled(true);
295 statisticsContext.gainDeviceState(),
303 public void stopScheduling(final DeviceInfo deviceInfo) {
304 if (LOG.isDebugEnabled()) {
305 LOG.debug("Stopping statistics scheduling for device: {}", deviceInfo.getNodeId());
308 final StatisticsContext statisticsContext = contexts.get(deviceInfo);
310 if (statisticsContext == null) {
311 LOG.warn("Statistics context not found for device: {}", deviceInfo.getNodeId());
315 statisticsContext.setSchedulingEnabled(false);
319 public void close() {
320 if (controlServiceRegistration != null) {
321 controlServiceRegistration.close();
322 controlServiceRegistration = null;
325 for (final Iterator<StatisticsContext> iterator = Iterators.consumingIterator(contexts.values().iterator());
326 iterator.hasNext();) {
327 iterator.next().close();
332 public void setDeviceTerminationPhaseHandler(final DeviceTerminationPhaseHandler handler) {
333 this.deviceTerminationPhaseHandler = handler;
337 public void setIsStatisticsPollingOff(boolean isStatisticsPollingOff){
338 this.isStatisticsPollingOff = isStatisticsPollingOff;
341 public void onDeviceRemoved(DeviceInfo deviceInfo) {
342 contexts.remove(deviceInfo);
343 LOG.debug("Statistics context removed for node {}", deviceInfo.getLOGValue());