Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 1 | /* |
Ray Milkey | 34c9590 | 2015-04-15 09:47:53 -0700 | [diff] [blame] | 2 | * Copyright 2014-2015 Open Networking Laboratory |
Thomas Vachuska | 4f1a60c | 2014-10-28 13:39:07 -0700 | [diff] [blame] | 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 | */ |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 16 | package org.onosproject.cluster.impl; |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 17 | |
| 18 | import org.apache.felix.scr.annotations.Activate; |
| 19 | import org.apache.felix.scr.annotations.Component; |
| 20 | import org.apache.felix.scr.annotations.Deactivate; |
| 21 | import org.apache.felix.scr.annotations.Reference; |
| 22 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 23 | import org.apache.felix.scr.annotations.Service; |
Thomas Vachuska | de563cf | 2015-04-01 00:28:50 -0700 | [diff] [blame] | 24 | import org.apache.karaf.system.SystemService; |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame] | 25 | import org.joda.time.DateTime; |
| 26 | import org.onlab.packet.IpAddress; |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 27 | import org.onosproject.cluster.ClusterAdminService; |
| 28 | import org.onosproject.cluster.ClusterEvent; |
| 29 | import org.onosproject.cluster.ClusterEventListener; |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 30 | import org.onosproject.cluster.ClusterMetadata; |
Madan Jampani | ab7e7cd | 2016-01-14 14:02:32 -0800 | [diff] [blame] | 31 | import org.onosproject.cluster.ClusterMetadataAdminService; |
Madan Jampani | 1807057 | 2016-02-29 13:54:45 -0800 | [diff] [blame] | 32 | import org.onosproject.cluster.ClusterMetadataDiff; |
| 33 | import org.onosproject.cluster.ClusterMetadataEvent; |
| 34 | import org.onosproject.cluster.ClusterMetadataEventListener; |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 35 | import org.onosproject.cluster.ClusterMetadataService; |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 36 | import org.onosproject.cluster.ClusterService; |
| 37 | import org.onosproject.cluster.ClusterStore; |
| 38 | import org.onosproject.cluster.ClusterStoreDelegate; |
| 39 | import org.onosproject.cluster.ControllerNode; |
Madan Jampani | 8474fdd | 2016-01-19 09:56:28 -0800 | [diff] [blame] | 40 | import org.onosproject.cluster.DefaultPartition; |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 41 | import org.onosproject.cluster.NodeId; |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 42 | import org.onosproject.cluster.Partition; |
Madan Jampani | ab7e7cd | 2016-01-14 14:02:32 -0800 | [diff] [blame] | 43 | import org.onosproject.cluster.PartitionId; |
Thomas Vachuska | 42e8cce | 2015-07-29 19:25:18 -0700 | [diff] [blame] | 44 | import org.onosproject.event.AbstractListenerManager; |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 45 | import org.slf4j.Logger; |
| 46 | |
Madan Jampani | ab7e7cd | 2016-01-14 14:02:32 -0800 | [diff] [blame] | 47 | import com.google.common.collect.Collections2; |
Madan Jampani | ab7e7cd | 2016-01-14 14:02:32 -0800 | [diff] [blame] | 48 | import com.google.common.collect.Sets; |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 49 | |
| 50 | import java.util.ArrayList; |
| 51 | import java.util.Collection; |
| 52 | import java.util.Collections; |
| 53 | import java.util.HashSet; |
| 54 | import java.util.List; |
Thomas Vachuska | de563cf | 2015-04-01 00:28:50 -0700 | [diff] [blame] | 55 | import java.util.Set; |
Madan Jampani | 1807057 | 2016-02-29 13:54:45 -0800 | [diff] [blame] | 56 | import java.util.concurrent.atomic.AtomicReference; |
Thomas Vachuska | de563cf | 2015-04-01 00:28:50 -0700 | [diff] [blame] | 57 | |
| 58 | import static com.google.common.base.Preconditions.checkArgument; |
| 59 | import static com.google.common.base.Preconditions.checkNotNull; |
Changhoon Yoon | 541ef71 | 2015-05-23 17:18:34 +0900 | [diff] [blame] | 60 | import static org.onosproject.security.AppGuard.checkPermission; |
Thomas Vachuska | 42e8cce | 2015-07-29 19:25:18 -0700 | [diff] [blame] | 61 | import static org.slf4j.LoggerFactory.getLogger; |
Changhoon Yoon | b856b81 | 2015-08-10 03:47:19 +0900 | [diff] [blame] | 62 | import static org.onosproject.security.AppPermission.Type.*; |
| 63 | |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 64 | /** |
| 65 | * Implementation of the cluster service. |
| 66 | */ |
Madan Jampani | dd6479f | 2015-03-02 02:23:44 +0000 | [diff] [blame] | 67 | @Component(immediate = true) |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 68 | @Service |
Thomas Vachuska | 42e8cce | 2015-07-29 19:25:18 -0700 | [diff] [blame] | 69 | public class ClusterManager |
| 70 | extends AbstractListenerManager<ClusterEvent, ClusterEventListener> |
| 71 | implements ClusterService, ClusterAdminService { |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 72 | |
| 73 | public static final String INSTANCE_ID_NULL = "Instance ID cannot be null"; |
| 74 | private final Logger log = getLogger(getClass()); |
| 75 | |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 76 | private ClusterStoreDelegate delegate = new InternalStoreDelegate(); |
| 77 | |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 78 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 79 | protected ClusterMetadataService clusterMetadataService; |
Madan Jampani | afeebbd | 2015-05-19 15:26:01 -0700 | [diff] [blame] | 80 | |
| 81 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Madan Jampani | ab7e7cd | 2016-01-14 14:02:32 -0800 | [diff] [blame] | 82 | protected ClusterMetadataAdminService clusterMetadataAdminService; |
| 83 | |
| 84 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 85 | protected ClusterStore store; |
| 86 | |
| 87 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Thomas Vachuska | de563cf | 2015-04-01 00:28:50 -0700 | [diff] [blame] | 88 | protected SystemService systemService; |
| 89 | |
Madan Jampani | 1807057 | 2016-02-29 13:54:45 -0800 | [diff] [blame] | 90 | private final AtomicReference<ClusterMetadata> currentMetadata = new AtomicReference<>(); |
| 91 | private final InternalClusterMetadataListener metadataListener = new InternalClusterMetadataListener(); |
| 92 | |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 93 | @Activate |
| 94 | public void activate() { |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 95 | store.setDelegate(delegate); |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 96 | eventDispatcher.addSink(ClusterEvent.class, listenerRegistry); |
Madan Jampani | 1807057 | 2016-02-29 13:54:45 -0800 | [diff] [blame] | 97 | clusterMetadataService.addListener(metadataListener); |
| 98 | processMetadata(clusterMetadataService.getClusterMetadata()); |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 99 | log.info("Started"); |
| 100 | } |
| 101 | |
| 102 | @Deactivate |
| 103 | public void deactivate() { |
Madan Jampani | 1807057 | 2016-02-29 13:54:45 -0800 | [diff] [blame] | 104 | clusterMetadataService.removeListener(metadataListener); |
tom | f80c972 | 2014-09-24 14:49:18 -0700 | [diff] [blame] | 105 | store.unsetDelegate(delegate); |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 106 | eventDispatcher.removeSink(ClusterEvent.class); |
| 107 | log.info("Stopped"); |
| 108 | } |
| 109 | |
| 110 | @Override |
| 111 | public ControllerNode getLocalNode() { |
Changhoon Yoon | b856b81 | 2015-08-10 03:47:19 +0900 | [diff] [blame] | 112 | checkPermission(CLUSTER_READ); |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 113 | return store.getLocalNode(); |
| 114 | } |
| 115 | |
| 116 | @Override |
| 117 | public Set<ControllerNode> getNodes() { |
Changhoon Yoon | b856b81 | 2015-08-10 03:47:19 +0900 | [diff] [blame] | 118 | checkPermission(CLUSTER_READ); |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 119 | return store.getNodes(); |
| 120 | } |
| 121 | |
| 122 | @Override |
| 123 | public ControllerNode getNode(NodeId nodeId) { |
Changhoon Yoon | b856b81 | 2015-08-10 03:47:19 +0900 | [diff] [blame] | 124 | checkPermission(CLUSTER_READ); |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 125 | checkNotNull(nodeId, INSTANCE_ID_NULL); |
| 126 | return store.getNode(nodeId); |
| 127 | } |
| 128 | |
| 129 | @Override |
| 130 | public ControllerNode.State getState(NodeId nodeId) { |
Changhoon Yoon | b856b81 | 2015-08-10 03:47:19 +0900 | [diff] [blame] | 131 | checkPermission(CLUSTER_READ); |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 132 | checkNotNull(nodeId, INSTANCE_ID_NULL); |
| 133 | return store.getState(nodeId); |
| 134 | } |
| 135 | |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame] | 136 | |
| 137 | @Override |
| 138 | public DateTime getLastUpdated(NodeId nodeId) { |
Changhoon Yoon | b856b81 | 2015-08-10 03:47:19 +0900 | [diff] [blame] | 139 | checkPermission(CLUSTER_READ); |
Madan Jampani | 7d2fab2 | 2015-03-18 17:21:57 -0700 | [diff] [blame] | 140 | return store.getLastUpdated(nodeId); |
| 141 | } |
| 142 | |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 143 | @Override |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 144 | public void formCluster(Set<ControllerNode> nodes) { |
Thomas Vachuska | de563cf | 2015-04-01 00:28:50 -0700 | [diff] [blame] | 145 | checkNotNull(nodes, "Nodes cannot be null"); |
| 146 | checkArgument(!nodes.isEmpty(), "Nodes cannot be empty"); |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 147 | |
Madan Jampani | ad3c526 | 2016-01-20 00:50:17 -0800 | [diff] [blame] | 148 | ClusterMetadata metadata = new ClusterMetadata("default", nodes, buildDefaultPartitions(nodes)); |
Madan Jampani | ab7e7cd | 2016-01-14 14:02:32 -0800 | [diff] [blame] | 149 | clusterMetadataAdminService.setClusterMetadata(metadata); |
Thomas Vachuska | de563cf | 2015-04-01 00:28:50 -0700 | [diff] [blame] | 150 | try { |
| 151 | log.warn("Shutting down container for cluster reconfiguration!"); |
| 152 | systemService.reboot("now", SystemService.Swipe.NONE); |
| 153 | } catch (Exception e) { |
| 154 | log.error("Unable to reboot container", e); |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | @Override |
Pavlin Radoslavov | 444b519 | 2014-10-28 10:45:19 -0700 | [diff] [blame] | 159 | public ControllerNode addNode(NodeId nodeId, IpAddress ip, int tcpPort) { |
tom | ee49c37 | 2014-09-26 15:14:50 -0700 | [diff] [blame] | 160 | checkNotNull(nodeId, INSTANCE_ID_NULL); |
| 161 | checkNotNull(ip, "IP address cannot be null"); |
| 162 | checkArgument(tcpPort > 5000, "TCP port must be > 5000"); |
| 163 | return store.addNode(nodeId, ip, tcpPort); |
| 164 | } |
| 165 | |
| 166 | @Override |
tom | b41d1ac | 2014-09-24 01:51:24 -0700 | [diff] [blame] | 167 | public void removeNode(NodeId nodeId) { |
| 168 | checkNotNull(nodeId, INSTANCE_ID_NULL); |
| 169 | store.removeNode(nodeId); |
| 170 | } |
| 171 | |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 172 | // Store delegate to re-post events emitted from the store. |
| 173 | private class InternalStoreDelegate implements ClusterStoreDelegate { |
| 174 | @Override |
| 175 | public void notify(ClusterEvent event) { |
Thomas Vachuska | 42e8cce | 2015-07-29 19:25:18 -0700 | [diff] [blame] | 176 | post(event); |
tom | 0755a36 | 2014-09-24 11:54:43 -0700 | [diff] [blame] | 177 | } |
| 178 | } |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 179 | |
Madan Jampani | ad3c526 | 2016-01-20 00:50:17 -0800 | [diff] [blame] | 180 | private static Set<Partition> buildDefaultPartitions(Collection<ControllerNode> nodes) { |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 181 | List<ControllerNode> sorted = new ArrayList<>(nodes); |
| 182 | Collections.sort(sorted, (o1, o2) -> o1.id().toString().compareTo(o2.id().toString())); |
Madan Jampani | ad3c526 | 2016-01-20 00:50:17 -0800 | [diff] [blame] | 183 | Set<Partition> partitions = Sets.newHashSet(); |
Madan Jampani | ab7e7cd | 2016-01-14 14:02:32 -0800 | [diff] [blame] | 184 | // add p0 partition |
Madan Jampani | 8474fdd | 2016-01-19 09:56:28 -0800 | [diff] [blame] | 185 | partitions.add(new DefaultPartition(PartitionId.from(0), |
| 186 | Sets.newHashSet(Collections2.transform(nodes, ControllerNode::id)))); |
Madan Jampani | ab7e7cd | 2016-01-14 14:02:32 -0800 | [diff] [blame] | 187 | // add extended partitions |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 188 | int length = nodes.size(); |
Madan Jampani | 8474fdd | 2016-01-19 09:56:28 -0800 | [diff] [blame] | 189 | int count = Math.min(3, length); |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 190 | for (int i = 0; i < length; i++) { |
Madan Jampani | ab7e7cd | 2016-01-14 14:02:32 -0800 | [diff] [blame] | 191 | int index = i; |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 192 | Set<NodeId> set = new HashSet<>(count); |
| 193 | for (int j = 0; j < count; j++) { |
| 194 | set.add(sorted.get((i + j) % length).id()); |
| 195 | } |
Madan Jampani | 8474fdd | 2016-01-19 09:56:28 -0800 | [diff] [blame] | 196 | partitions.add(new DefaultPartition(PartitionId.from((index + 1)), set)); |
Madan Jampani | ec1df02 | 2015-10-13 21:23:03 -0700 | [diff] [blame] | 197 | } |
| 198 | return partitions; |
| 199 | } |
Madan Jampani | 1807057 | 2016-02-29 13:54:45 -0800 | [diff] [blame] | 200 | |
| 201 | /** |
| 202 | * Processes metadata by adding and removing nodes from the cluster. |
| 203 | */ |
| 204 | private synchronized void processMetadata(ClusterMetadata metadata) { |
| 205 | try { |
| 206 | ClusterMetadataDiff examiner = |
| 207 | new ClusterMetadataDiff(currentMetadata.get(), metadata); |
| 208 | examiner.nodesAdded().forEach(node -> addNode(node.id(), node.ip(), node.tcpPort())); |
| 209 | examiner.nodesRemoved().forEach(this::removeNode); |
| 210 | } finally { |
| 211 | currentMetadata.set(metadata); |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | private class InternalClusterMetadataListener implements ClusterMetadataEventListener { |
| 216 | @Override |
| 217 | public void event(ClusterMetadataEvent event) { |
| 218 | processMetadata(event.subject()); |
| 219 | } |
| 220 | } |
tom | e472987 | 2014-09-23 00:37:37 -0700 | [diff] [blame] | 221 | } |