Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.store.statistic.impl; |
| 18 | |
| 19 | import com.google.common.base.Objects; |
| 20 | import org.apache.felix.scr.annotations.Activate; |
| 21 | import org.apache.felix.scr.annotations.Component; |
| 22 | import org.apache.felix.scr.annotations.Deactivate; |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 23 | import org.apache.felix.scr.annotations.Modified; |
| 24 | import org.apache.felix.scr.annotations.Property; |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 25 | import org.apache.felix.scr.annotations.Reference; |
| 26 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 27 | import org.apache.felix.scr.annotations.Service; |
| 28 | import org.onlab.util.KryoNamespace; |
| 29 | import org.onlab.util.Tools; |
| 30 | import org.onosproject.cluster.ClusterService; |
| 31 | import org.onosproject.cluster.NodeId; |
| 32 | import org.onosproject.mastership.MastershipService; |
| 33 | import org.onosproject.net.ConnectPoint; |
| 34 | import org.onosproject.net.DeviceId; |
| 35 | import org.onosproject.net.PortNumber; |
| 36 | import org.onosproject.net.flow.FlowEntry; |
| 37 | import org.onosproject.net.flow.FlowRule; |
| 38 | import org.onosproject.net.flow.instructions.Instruction; |
| 39 | import org.onosproject.net.flow.instructions.Instructions; |
| 40 | import org.onosproject.net.statistic.FlowStatisticStore; |
| 41 | import org.onosproject.store.cluster.messaging.ClusterCommunicationService; |
| 42 | import org.onosproject.store.serializers.KryoNamespaces; |
| 43 | import org.onosproject.store.serializers.KryoSerializer; |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 44 | import org.osgi.service.component.ComponentContext; |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 45 | import org.slf4j.Logger; |
| 46 | |
| 47 | import java.util.Collections; |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 48 | import java.util.Dictionary; |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 49 | import java.util.HashSet; |
| 50 | import java.util.Map; |
| 51 | import java.util.Optional; |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 52 | import java.util.Properties; |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 53 | import java.util.Set; |
| 54 | import java.util.concurrent.ConcurrentHashMap; |
| 55 | import java.util.concurrent.ExecutorService; |
| 56 | import java.util.concurrent.Executors; |
| 57 | import java.util.concurrent.TimeUnit; |
| 58 | |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 59 | import static com.google.common.base.Preconditions.checkArgument; |
| 60 | import static com.google.common.base.Strings.isNullOrEmpty; |
| 61 | import static org.onlab.util.Tools.get; |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 62 | import static org.onlab.util.Tools.groupedThreads; |
| 63 | import static org.onosproject.store.statistic.impl.StatisticStoreMessageSubjects.GET_CURRENT; |
| 64 | import static org.onosproject.store.statistic.impl.StatisticStoreMessageSubjects.GET_PREVIOUS; |
| 65 | import static org.slf4j.LoggerFactory.getLogger; |
| 66 | |
| 67 | /** |
| 68 | * Maintains flow statistics using RPC calls to collect stats from remote instances |
| 69 | * on demand. |
| 70 | */ |
| 71 | @Component(immediate = true) |
| 72 | @Service |
| 73 | public class DistributedFlowStatisticStore implements FlowStatisticStore { |
| 74 | private final Logger log = getLogger(getClass()); |
| 75 | |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 76 | private static final String FORMAT = "Setting: messageHandlerThreadPoolSize={}"; |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 77 | |
| 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 79 | protected MastershipService mastershipService; |
| 80 | |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 82 | protected ClusterCommunicationService clusterCommunicator; |
| 83 | |
| 84 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 85 | protected ClusterService clusterService; |
| 86 | |
| 87 | private Map<ConnectPoint, Set<FlowEntry>> previous = |
| 88 | new ConcurrentHashMap<>(); |
| 89 | |
| 90 | private Map<ConnectPoint, Set<FlowEntry>> current = |
| 91 | new ConcurrentHashMap<>(); |
| 92 | |
| 93 | protected static final KryoSerializer SERIALIZER = new KryoSerializer() { |
| 94 | @Override |
| 95 | protected void setupKryoPool() { |
| 96 | serializerPool = KryoNamespace.newBuilder() |
| 97 | .register(KryoNamespaces.API) |
| 98 | .nextId(KryoNamespaces.BEGIN_USER_CUSTOM_ID) |
| 99 | // register this store specific classes here |
| 100 | .build(); |
| 101 | } |
| 102 | }; |
| 103 | |
| 104 | private NodeId local; |
| 105 | private ExecutorService messageHandlingExecutor; |
| 106 | |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 107 | private static final int DEFAULT_MESSAGE_HANDLER_THREAD_POOL_SIZE = 4; |
| 108 | @Property(name = "messageHandlerThreadPoolSize", intValue = DEFAULT_MESSAGE_HANDLER_THREAD_POOL_SIZE, |
| 109 | label = "Size of thread pool to assign message handler") |
| 110 | private static int messageHandlerThreadPoolSize = DEFAULT_MESSAGE_HANDLER_THREAD_POOL_SIZE; |
| 111 | |
| 112 | |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 113 | private static final long STATISTIC_STORE_TIMEOUT_MILLIS = 3000; |
| 114 | |
| 115 | @Activate |
| 116 | public void activate() { |
| 117 | local = clusterService.getLocalNode().id(); |
| 118 | |
| 119 | messageHandlingExecutor = Executors.newFixedThreadPool( |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 120 | messageHandlerThreadPoolSize, |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 121 | groupedThreads("onos/store/statistic", "message-handlers")); |
| 122 | |
| 123 | clusterCommunicator.addSubscriber( |
| 124 | GET_CURRENT, SERIALIZER::decode, this::getCurrentStatisticInternal, SERIALIZER::encode, |
| 125 | messageHandlingExecutor); |
| 126 | |
| 127 | clusterCommunicator.addSubscriber( |
| 128 | GET_CURRENT, SERIALIZER::decode, this::getPreviousStatisticInternal, SERIALIZER::encode, |
| 129 | messageHandlingExecutor); |
| 130 | |
| 131 | log.info("Started"); |
| 132 | } |
| 133 | |
| 134 | @Deactivate |
| 135 | public void deactivate() { |
| 136 | clusterCommunicator.removeSubscriber(GET_PREVIOUS); |
| 137 | clusterCommunicator.removeSubscriber(GET_CURRENT); |
| 138 | messageHandlingExecutor.shutdown(); |
| 139 | log.info("Stopped"); |
| 140 | } |
| 141 | |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 142 | @Modified |
| 143 | public void modified(ComponentContext context) { |
| 144 | Dictionary<?, ?> properties = context != null ? context.getProperties() : new Properties(); |
| 145 | |
| 146 | int newMessageHandlerThreadPoolSize; |
| 147 | |
| 148 | try { |
| 149 | String s = get(properties, "messageHandlerThreadPoolSize"); |
| 150 | |
| 151 | newMessageHandlerThreadPoolSize = |
| 152 | isNullOrEmpty(s) ? messageHandlerThreadPoolSize : Integer.parseInt(s.trim()); |
| 153 | |
| 154 | } catch (NumberFormatException e) { |
| 155 | log.warn(e.getMessage()); |
| 156 | newMessageHandlerThreadPoolSize = messageHandlerThreadPoolSize; |
| 157 | } |
| 158 | |
| 159 | // Any change in the following parameters implies thread pool restart |
| 160 | if (newMessageHandlerThreadPoolSize != messageHandlerThreadPoolSize) { |
| 161 | setMessageHandlerThreadPoolSize(newMessageHandlerThreadPoolSize); |
| 162 | restartMessageHandlerThreadPool(); |
| 163 | } |
| 164 | |
| 165 | log.info(FORMAT, messageHandlerThreadPoolSize); |
| 166 | } |
| 167 | |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 168 | @Override |
| 169 | public synchronized void removeFlowStatistic(FlowRule rule) { |
| 170 | ConnectPoint cp = buildConnectPoint(rule); |
| 171 | if (cp == null) { |
| 172 | return; |
| 173 | } |
| 174 | |
| 175 | // remove this rule if present from current map |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 176 | current.computeIfPresent(cp, (c, e) -> { |
| 177 | e.remove(rule); |
| 178 | return e; |
| 179 | }); |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 180 | |
| 181 | // remove this on if present from previous map |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 182 | previous.computeIfPresent(cp, (c, e) -> { |
| 183 | e.remove(rule); |
| 184 | return e; |
| 185 | }); |
Madan Jampani | c27b6b2 | 2016-02-05 11:36:31 -0800 | [diff] [blame] | 186 | } |
| 187 | |
| 188 | @Override |
| 189 | public synchronized void addFlowStatistic(FlowEntry rule) { |
| 190 | ConnectPoint cp = buildConnectPoint(rule); |
| 191 | if (cp == null) { |
| 192 | return; |
| 193 | } |
| 194 | |
| 195 | // create one if absent and add this rule |
| 196 | current.putIfAbsent(cp, new HashSet<>()); |
| 197 | current.computeIfPresent(cp, (c, e) -> { e.add(rule); return e; }); |
| 198 | |
| 199 | // remove previous one if present |
| 200 | previous.computeIfPresent(cp, (c, e) -> { e.remove(rule); return e; }); |
| 201 | } |
| 202 | |
| 203 | public synchronized void updateFlowStatistic(FlowEntry rule) { |
| 204 | ConnectPoint cp = buildConnectPoint(rule); |
| 205 | if (cp == null) { |
| 206 | return; |
| 207 | } |
| 208 | |
| 209 | Set<FlowEntry> curr = current.get(cp); |
| 210 | if (curr == null) { |
| 211 | addFlowStatistic(rule); |
| 212 | } else { |
| 213 | Optional<FlowEntry> f = curr.stream().filter(c -> rule.equals(c)). |
| 214 | findAny(); |
| 215 | if (f.isPresent() && rule.bytes() < f.get().bytes()) { |
| 216 | log.debug("DistributedFlowStatisticStore:updateFlowStatistic():" + |
| 217 | " Invalid Flow Update! Will be removed!!" + |
| 218 | " curr flowId=" + Long.toHexString(rule.id().value()) + |
| 219 | ", prev flowId=" + Long.toHexString(f.get().id().value()) + |
| 220 | ", curr bytes=" + rule.bytes() + ", prev bytes=" + f.get().bytes() + |
| 221 | ", curr life=" + rule.life() + ", prev life=" + f.get().life() + |
| 222 | ", curr lastSeen=" + rule.lastSeen() + ", prev lastSeen=" + f.get().lastSeen()); |
| 223 | // something is wrong! invalid flow entry, so delete it |
| 224 | removeFlowStatistic(rule); |
| 225 | return; |
| 226 | } |
| 227 | Set<FlowEntry> prev = previous.get(cp); |
| 228 | if (prev == null) { |
| 229 | prev = new HashSet<>(); |
| 230 | previous.put(cp, prev); |
| 231 | } |
| 232 | |
| 233 | // previous one is exist |
| 234 | if (f.isPresent()) { |
| 235 | // remove old one and add new one |
| 236 | prev.remove(rule); |
| 237 | if (!prev.add(f.get())) { |
| 238 | log.debug("DistributedFlowStatisticStore:updateFlowStatistic():" + |
| 239 | " flowId={}, add failed into previous.", |
| 240 | Long.toHexString(rule.id().value())); |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | // remove old one and add new one |
| 245 | curr.remove(rule); |
| 246 | if (!curr.add(rule)) { |
| 247 | log.debug("DistributedFlowStatisticStore:updateFlowStatistic():" + |
| 248 | " flowId={}, add failed into current.", |
| 249 | Long.toHexString(rule.id().value())); |
| 250 | } |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | @Override |
| 255 | public Set<FlowEntry> getCurrentFlowStatistic(ConnectPoint connectPoint) { |
| 256 | final DeviceId deviceId = connectPoint.deviceId(); |
| 257 | |
| 258 | NodeId master = mastershipService.getMasterFor(deviceId); |
| 259 | if (master == null) { |
| 260 | log.warn("No master for {}", deviceId); |
| 261 | return Collections.emptySet(); |
| 262 | } |
| 263 | |
| 264 | if (Objects.equal(local, master)) { |
| 265 | return getCurrentStatisticInternal(connectPoint); |
| 266 | } else { |
| 267 | return Tools.futureGetOrElse(clusterCommunicator.sendAndReceive( |
| 268 | connectPoint, |
| 269 | GET_CURRENT, |
| 270 | SERIALIZER::encode, |
| 271 | SERIALIZER::decode, |
| 272 | master), |
| 273 | STATISTIC_STORE_TIMEOUT_MILLIS, |
| 274 | TimeUnit.MILLISECONDS, |
| 275 | Collections.emptySet()); |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | private synchronized Set<FlowEntry> getCurrentStatisticInternal(ConnectPoint connectPoint) { |
| 280 | return current.get(connectPoint); |
| 281 | } |
| 282 | |
| 283 | @Override |
| 284 | public Set<FlowEntry> getPreviousFlowStatistic(ConnectPoint connectPoint) { |
| 285 | final DeviceId deviceId = connectPoint.deviceId(); |
| 286 | |
| 287 | NodeId master = mastershipService.getMasterFor(deviceId); |
| 288 | if (master == null) { |
| 289 | log.warn("No master for {}", deviceId); |
| 290 | return Collections.emptySet(); |
| 291 | } |
| 292 | |
| 293 | if (Objects.equal(local, master)) { |
| 294 | return getPreviousStatisticInternal(connectPoint); |
| 295 | } else { |
| 296 | return Tools.futureGetOrElse(clusterCommunicator.sendAndReceive( |
| 297 | connectPoint, |
| 298 | GET_PREVIOUS, |
| 299 | SERIALIZER::encode, |
| 300 | SERIALIZER::decode, |
| 301 | master), |
| 302 | STATISTIC_STORE_TIMEOUT_MILLIS, |
| 303 | TimeUnit.MILLISECONDS, |
| 304 | Collections.emptySet()); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | private synchronized Set<FlowEntry> getPreviousStatisticInternal(ConnectPoint connectPoint) { |
| 309 | return previous.get(connectPoint); |
| 310 | } |
| 311 | |
| 312 | private ConnectPoint buildConnectPoint(FlowRule rule) { |
| 313 | PortNumber port = getOutput(rule); |
| 314 | |
| 315 | if (port == null) { |
| 316 | return null; |
| 317 | } |
| 318 | ConnectPoint cp = new ConnectPoint(rule.deviceId(), port); |
| 319 | return cp; |
| 320 | } |
| 321 | |
| 322 | private PortNumber getOutput(FlowRule rule) { |
| 323 | for (Instruction i : rule.treatment().allInstructions()) { |
| 324 | if (i.type() == Instruction.Type.OUTPUT) { |
| 325 | Instructions.OutputInstruction out = (Instructions.OutputInstruction) i; |
| 326 | return out.port(); |
| 327 | } |
| 328 | if (i.type() == Instruction.Type.DROP) { |
| 329 | return PortNumber.P0; |
| 330 | } |
| 331 | } |
| 332 | return null; |
| 333 | } |
sangyun-han | ad84e0c | 2016-02-19 18:30:03 +0900 | [diff] [blame^] | 334 | |
| 335 | /** |
| 336 | * Sets thread pool size of message handler. |
| 337 | * |
| 338 | * @param poolSize |
| 339 | */ |
| 340 | private void setMessageHandlerThreadPoolSize(int poolSize) { |
| 341 | checkArgument(poolSize >= 0, "Message handler pool size must be 0 or more"); |
| 342 | messageHandlerThreadPoolSize = poolSize; |
| 343 | } |
| 344 | |
| 345 | /** |
| 346 | * Restarts thread pool of message handler. |
| 347 | */ |
| 348 | private void restartMessageHandlerThreadPool() { |
| 349 | ExecutorService prevExecutor = messageHandlingExecutor; |
| 350 | messageHandlingExecutor = Executors.newFixedThreadPool(getMessageHandlerThreadPoolSize()); |
| 351 | prevExecutor.shutdown(); |
| 352 | } |
| 353 | |
| 354 | /** |
| 355 | * Gets current thread pool size of message handler. |
| 356 | * |
| 357 | * @return messageHandlerThreadPoolSize |
| 358 | */ |
| 359 | private int getMessageHandlerThreadPoolSize() { |
| 360 | return messageHandlerThreadPoolSize; |
| 361 | } |
ssyoon90 | a98825a | 2015-08-26 00:48:15 +0900 | [diff] [blame] | 362 | } |