Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 1 | package org.onlab.onos.store.service.impl; |
| 2 | |
| 3 | import static org.slf4j.LoggerFactory.getLogger; |
| 4 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 5 | import java.io.File; |
| 6 | import java.io.IOException; |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 7 | import java.util.Collection; |
| 8 | import java.util.Collections; |
| 9 | import java.util.HashSet; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 10 | import java.util.List; |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 11 | import java.util.Map; |
| 12 | import java.util.Set; |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 13 | import java.util.concurrent.CountDownLatch; |
| 14 | import java.util.concurrent.TimeUnit; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 15 | |
| 16 | import net.kuujo.copycat.Copycat; |
| 17 | import net.kuujo.copycat.StateMachine; |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 18 | import net.kuujo.copycat.cluster.ClusterConfig; |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 19 | import net.kuujo.copycat.cluster.Member; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 20 | import net.kuujo.copycat.cluster.TcpCluster; |
| 21 | import net.kuujo.copycat.cluster.TcpClusterConfig; |
| 22 | import net.kuujo.copycat.cluster.TcpMember; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 23 | import net.kuujo.copycat.log.Log; |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 24 | |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 25 | import org.apache.felix.scr.annotations.Activate; |
Madan Jampani | dfbfa18 | 2014-11-04 22:06:41 -0800 | [diff] [blame] | 26 | import org.apache.felix.scr.annotations.Component; |
Yuta HIGUCHI | 657626e | 2014-11-04 20:54:58 -0800 | [diff] [blame] | 27 | import org.apache.felix.scr.annotations.Deactivate; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 28 | import org.apache.felix.scr.annotations.Reference; |
| 29 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
Madan Jampani | dfbfa18 | 2014-11-04 22:06:41 -0800 | [diff] [blame] | 30 | import org.apache.felix.scr.annotations.Service; |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 31 | import org.onlab.onos.cluster.ClusterEvent; |
| 32 | import org.onlab.onos.cluster.ClusterEventListener; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 33 | import org.onlab.onos.cluster.ClusterService; |
| 34 | import org.onlab.onos.cluster.ControllerNode; |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 35 | import org.onlab.onos.cluster.DefaultControllerNode; |
| 36 | import org.onlab.onos.cluster.NodeId; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 37 | import org.onlab.onos.store.service.BatchReadRequest; |
| 38 | import org.onlab.onos.store.service.BatchReadResult; |
| 39 | import org.onlab.onos.store.service.BatchWriteRequest; |
| 40 | import org.onlab.onos.store.service.BatchWriteResult; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 41 | import org.onlab.onos.store.service.DatabaseAdminService; |
| 42 | import org.onlab.onos.store.service.DatabaseException; |
| 43 | import org.onlab.onos.store.service.DatabaseService; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 44 | import org.onlab.onos.store.service.ReadResult; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 45 | import org.onlab.onos.store.service.ReadStatus; |
| 46 | import org.onlab.onos.store.service.VersionedValue; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 47 | import org.onlab.onos.store.service.WriteResult; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 48 | import org.onlab.onos.store.service.WriteStatus; |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 49 | import org.onlab.packet.IpAddress; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 50 | import org.slf4j.Logger; |
| 51 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 52 | import com.google.common.collect.ImmutableList; |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 53 | |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 54 | /** |
| 55 | * Strongly consistent and durable state management service based on |
| 56 | * Copycat implementation of Raft consensus protocol. |
| 57 | */ |
Madan Jampani | dfbfa18 | 2014-11-04 22:06:41 -0800 | [diff] [blame] | 58 | @Component(immediate = true) |
| 59 | @Service |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 60 | public class DatabaseManager implements DatabaseService, DatabaseAdminService { |
| 61 | |
| 62 | private final Logger log = getLogger(getClass()); |
| 63 | |
| 64 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Yuta HIGUCHI | 5001ba9 | 2014-11-04 21:33:54 -0800 | [diff] [blame] | 65 | protected ClusterService clusterService; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 66 | |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 67 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
Yuta HIGUCHI | 0c1c100 | 2014-11-05 13:47:25 -0800 | [diff] [blame] | 68 | protected DatabaseProtocolService copycatMessagingProtocol; |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 69 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 70 | public static final String LOG_FILE_PREFIX = "/tmp/onos-copy-cat-log_"; |
| 71 | |
| 72 | // Current working dir seems to be /opt/onos/apache-karaf-3.0.2 |
Pavlin Radoslavov | 190f8f9 | 2014-11-11 15:56:14 -0800 | [diff] [blame] | 73 | // TODO: Set the path to /opt/onos/config |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 74 | private static final String CONFIG_DIR = "../config"; |
| 75 | |
| 76 | private static final String DEFAULT_MEMBER_FILE = "tablets.json"; |
| 77 | |
| 78 | private static final String DEFAULT_TABLET = "default"; |
| 79 | |
| 80 | // TODO: make this configurable |
| 81 | // initial member configuration file path |
| 82 | private String initialMemberConfig = DEFAULT_MEMBER_FILE; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 83 | |
| 84 | private Copycat copycat; |
| 85 | private DatabaseClient client; |
| 86 | |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 87 | // guarded by synchronized block |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 88 | private ClusterConfig<TcpMember> clusterConfig; |
| 89 | |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 90 | private CountDownLatch clusterEventLatch; |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 91 | private ClusterEventListener clusterEventListener; |
| 92 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 93 | private Map<String, Set<DefaultControllerNode>> tabletMembers; |
| 94 | |
| 95 | private boolean autoAddMember = false; |
| 96 | |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 97 | @Activate |
| 98 | public void activate() { |
Madan Jampani | dfbfa18 | 2014-11-04 22:06:41 -0800 | [diff] [blame] | 99 | |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 100 | // TODO: Not every node should be part of the consensus ring. |
Madan Jampani | dfbfa18 | 2014-11-04 22:06:41 -0800 | [diff] [blame] | 101 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 102 | // load tablet configuration |
| 103 | File file = new File(CONFIG_DIR, initialMemberConfig); |
| 104 | log.info("Loading config: {}", file.getAbsolutePath()); |
| 105 | TabletDefinitionStore tabletDef = new TabletDefinitionStore(file); |
| 106 | try { |
| 107 | tabletMembers = tabletDef.read(); |
| 108 | } catch (IOException e) { |
| 109 | log.error("Failed to load tablet config {}", file); |
| 110 | throw new IllegalStateException("Failed to load tablet config", e); |
| 111 | } |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 112 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 113 | // load default tablet configuration and start copycat |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 114 | clusterConfig = new TcpClusterConfig(); |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 115 | Set<DefaultControllerNode> defaultMember = tabletMembers.get(DEFAULT_TABLET); |
| 116 | if (defaultMember == null || defaultMember.isEmpty()) { |
| 117 | log.error("No member found in [{}] tablet configuration.", |
| 118 | DEFAULT_TABLET); |
| 119 | throw new IllegalStateException("No member found in tablet configuration"); |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 120 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 121 | } |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 122 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 123 | final ControllerNode localNode = clusterService.getLocalNode(); |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 124 | for (ControllerNode member : defaultMember) { |
| 125 | final TcpMember tcpMember = new TcpMember(member.ip().toString(), |
| 126 | member.tcpPort()); |
| 127 | if (localNode.equals(member)) { |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 128 | clusterConfig.setLocalMember(tcpMember); |
| 129 | } else { |
| 130 | clusterConfig.addRemoteMember(tcpMember); |
| 131 | } |
| 132 | } |
| 133 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 134 | // note: from this point beyond, clusterConfig requires synchronization |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 135 | clusterEventLatch = new CountDownLatch(1); |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 136 | clusterEventListener = new InternalClusterEventListener(); |
| 137 | clusterService.addListener(clusterEventListener); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 138 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 139 | if (clusterService.getNodes().size() < clusterConfig.getMembers().size()) { |
| 140 | // current cluster size smaller then expected |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 141 | try { |
| 142 | if (!clusterEventLatch.await(120, TimeUnit.SECONDS)) { |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 143 | log.info("Starting with {}/{} nodes cluster", |
| 144 | clusterService.getNodes().size(), |
| 145 | clusterConfig.getMembers().size()); |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 146 | } |
| 147 | } catch (InterruptedException e) { |
| 148 | log.info("Interrupted waiting for others", e); |
| 149 | } |
| 150 | } |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 151 | |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 152 | final TcpCluster cluster; |
| 153 | synchronized (clusterConfig) { |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 154 | // Create the cluster. |
| 155 | cluster = new TcpCluster(clusterConfig); |
| 156 | } |
| 157 | log.info("Starting cluster: {}", cluster); |
| 158 | |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 159 | |
| 160 | StateMachine stateMachine = new DatabaseStateMachine(); |
Madan Jampani | 2ee2000 | 2014-11-06 20:06:12 -0800 | [diff] [blame] | 161 | Log consensusLog = new MapDBLog(LOG_FILE_PREFIX + localNode.id(), |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 162 | ClusterMessagingProtocol.SERIALIZER); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 163 | |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 164 | copycat = new Copycat(stateMachine, consensusLog, cluster, copycatMessagingProtocol); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 165 | copycat.start(); |
| 166 | |
Yuta HIGUCHI | f846844 | 2014-11-11 10:09:20 -0800 | [diff] [blame] | 167 | client = new DatabaseClient(copycat); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 168 | |
| 169 | log.info("Started."); |
| 170 | } |
| 171 | |
Yuta HIGUCHI | 657626e | 2014-11-04 20:54:58 -0800 | [diff] [blame] | 172 | @Deactivate |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 173 | public void deactivate() { |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 174 | clusterService.removeListener(clusterEventListener); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 175 | copycat.stop(); |
Yuta HIGUCHI | 657626e | 2014-11-04 20:54:58 -0800 | [diff] [blame] | 176 | log.info("Stopped."); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 177 | } |
| 178 | |
| 179 | @Override |
| 180 | public boolean createTable(String name) { |
| 181 | return client.createTable(name); |
| 182 | } |
| 183 | |
| 184 | @Override |
| 185 | public void dropTable(String name) { |
| 186 | client.dropTable(name); |
| 187 | } |
| 188 | |
| 189 | @Override |
| 190 | public void dropAllTables() { |
| 191 | client.dropAllTables(); |
| 192 | } |
| 193 | |
| 194 | @Override |
| 195 | public List<String> listTables() { |
| 196 | return client.listTables(); |
| 197 | } |
| 198 | |
| 199 | @Override |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 200 | public VersionedValue get(String tableName, String key) { |
| 201 | BatchReadRequest batchRequest = new BatchReadRequest.Builder().get(tableName, key).build(); |
| 202 | ReadResult readResult = batchRead(batchRequest).getAsList().get(0); |
| 203 | if (readResult.status().equals(ReadStatus.OK)) { |
| 204 | return readResult.value(); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 205 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 206 | throw new DatabaseException("get failed due to status: " + readResult.status()); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | @Override |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 210 | public BatchReadResult batchRead(BatchReadRequest batchRequest) { |
| 211 | return new BatchReadResult(client.batchRead(batchRequest)); |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | @Override |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 215 | public BatchWriteResult batchWrite(BatchWriteRequest batchRequest) { |
| 216 | return new BatchWriteResult(client.batchWrite(batchRequest)); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 217 | } |
| 218 | |
| 219 | @Override |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 220 | public VersionedValue put(String tableName, String key, byte[] value) { |
| 221 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder().put(tableName, key, value).build(); |
| 222 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 223 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 224 | return writeResult.previousValue(); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 225 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 226 | throw new DatabaseException("put failed due to status: " + writeResult.status()); |
| 227 | } |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 228 | |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 229 | @Override |
| 230 | public boolean putIfAbsent(String tableName, String key, byte[] value) { |
| 231 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder().putIfAbsent(tableName, key, value).build(); |
| 232 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 233 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 234 | return true; |
| 235 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 236 | return false; |
| 237 | } |
| 238 | throw new DatabaseException("putIfAbsent failed due to status: " + writeResult.status()); |
| 239 | } |
| 240 | |
| 241 | @Override |
| 242 | public boolean putIfVersionMatches(String tableName, String key, |
| 243 | byte[] value, long version) { |
| 244 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder().putIfVersionMatches(tableName, key, value, version).build(); |
| 245 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 246 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 247 | return true; |
| 248 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 249 | return false; |
| 250 | } |
| 251 | throw new DatabaseException("putIfVersionMatches failed due to status: " + writeResult.status()); |
| 252 | } |
| 253 | |
| 254 | @Override |
| 255 | public boolean putIfValueMatches(String tableName, String key, |
| 256 | byte[] oldValue, byte[] newValue) { |
| 257 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder().putIfValueMatches(tableName, key, oldValue, newValue).build(); |
| 258 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 259 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 260 | return true; |
| 261 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 262 | return false; |
| 263 | } |
| 264 | throw new DatabaseException("putIfValueMatches failed due to status: " + writeResult.status()); |
| 265 | } |
| 266 | |
| 267 | @Override |
| 268 | public VersionedValue remove(String tableName, String key) { |
| 269 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder().remove(tableName, key).build(); |
| 270 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 271 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 272 | return writeResult.previousValue(); |
| 273 | } |
| 274 | throw new DatabaseException("remove failed due to status: " + writeResult.status()); |
| 275 | } |
| 276 | |
| 277 | @Override |
| 278 | public boolean removeIfVersionMatches(String tableName, String key, |
| 279 | long version) { |
| 280 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder().removeIfVersionMatches(tableName, key, version).build(); |
| 281 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 282 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 283 | return true; |
| 284 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 285 | return false; |
| 286 | } |
| 287 | throw new DatabaseException("removeIfVersionMatches failed due to status: " + writeResult.status()); |
| 288 | } |
| 289 | |
| 290 | @Override |
| 291 | public boolean removeIfValueMatches(String tableName, String key, |
| 292 | byte[] value) { |
| 293 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder().removeIfValueMatches(tableName, key, value).build(); |
| 294 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 295 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 296 | return true; |
| 297 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 298 | return false; |
| 299 | } |
| 300 | throw new DatabaseException("removeIfValueMatches failed due to status: " + writeResult.status()); |
| 301 | } |
| 302 | |
| 303 | @Override |
| 304 | public void addMember(final ControllerNode node) { |
| 305 | final TcpMember tcpMember = new TcpMember(node.ip().toString(), |
| 306 | node.tcpPort()); |
| 307 | log.info("{} was added to the cluster", tcpMember); |
| 308 | synchronized (clusterConfig) { |
| 309 | clusterConfig.addRemoteMember(tcpMember); |
| 310 | } |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 311 | } |
| 312 | |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 313 | private final class InternalClusterEventListener |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 314 | implements ClusterEventListener { |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 315 | |
| 316 | @Override |
| 317 | public void event(ClusterEvent event) { |
| 318 | // TODO: Not every node should be part of the consensus ring. |
| 319 | |
| 320 | final ControllerNode node = event.subject(); |
| 321 | final TcpMember tcpMember = new TcpMember(node.ip().toString(), |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 322 | node.tcpPort()); |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 323 | |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 324 | switch (event.type()) { |
| 325 | case INSTANCE_ACTIVATED: |
| 326 | case INSTANCE_ADDED: |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 327 | if (autoAddMember) { |
| 328 | synchronized (clusterConfig) { |
| 329 | if (!clusterConfig.getMembers().contains(tcpMember)) { |
| 330 | log.info("{} was automatically added to the cluster", tcpMember); |
| 331 | clusterConfig.addRemoteMember(tcpMember); |
| 332 | } |
| 333 | } |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 334 | } |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 335 | break; |
| 336 | case INSTANCE_DEACTIVATED: |
| 337 | case INSTANCE_REMOVED: |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 338 | if (autoAddMember) { |
| 339 | Set<DefaultControllerNode> members |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 340 | = tabletMembers.getOrDefault(DEFAULT_TABLET, |
| 341 | Collections.emptySet()); |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 342 | // remove only if not the initial members |
| 343 | if (!members.contains(node)) { |
| 344 | synchronized (clusterConfig) { |
| 345 | if (clusterConfig.getMembers().contains(tcpMember)) { |
| 346 | log.info("{} was automatically removed from the cluster", tcpMember); |
| 347 | clusterConfig.removeRemoteMember(tcpMember); |
| 348 | } |
| 349 | } |
| 350 | } |
| 351 | } |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 352 | break; |
| 353 | default: |
| 354 | break; |
| 355 | } |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 356 | if (copycat != null) { |
| 357 | log.debug("Current cluster: {}", copycat.cluster()); |
| 358 | } |
| 359 | clusterEventLatch.countDown(); |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 360 | } |
| 361 | |
| 362 | } |
| 363 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 364 | @Override |
| 365 | public void removeMember(final ControllerNode node) { |
| 366 | final TcpMember tcpMember = new TcpMember(node.ip().toString(), |
| 367 | node.tcpPort()); |
| 368 | log.info("{} was removed from the cluster", tcpMember); |
| 369 | synchronized (clusterConfig) { |
| 370 | clusterConfig.removeRemoteMember(tcpMember); |
| 371 | } |
| 372 | } |
| 373 | |
| 374 | @Override |
| 375 | public Collection<ControllerNode> listMembers() { |
| 376 | if (copycat == null) { |
| 377 | return ImmutableList.of(); |
| 378 | } |
| 379 | Set<ControllerNode> members = new HashSet<>(); |
| 380 | for (Member member : copycat.cluster().members()) { |
| 381 | if (member instanceof TcpMember) { |
| 382 | final TcpMember tcpMember = (TcpMember) member; |
| 383 | // TODO assuming tcpMember#host to be IP address, |
| 384 | // but if not lookup DNS, etc. first |
| 385 | IpAddress ip = IpAddress.valueOf(tcpMember.host()); |
| 386 | int tcpPort = tcpMember.port(); |
| 387 | NodeId id = getNodeIdFromIp(ip, tcpPort); |
| 388 | if (id == null) { |
| 389 | log.info("No NodeId found for {}:{}", ip, tcpPort); |
| 390 | continue; |
| 391 | } |
| 392 | members.add(new DefaultControllerNode(id, ip, tcpPort)); |
| 393 | } |
| 394 | } |
| 395 | return members; |
| 396 | } |
| 397 | |
| 398 | private NodeId getNodeIdFromIp(IpAddress ip, int tcpPort) { |
| 399 | for (ControllerNode node : clusterService.getNodes()) { |
| 400 | if (node.ip().equals(ip) && |
| 401 | node.tcpPort() == tcpPort) { |
| 402 | return node.id(); |
| 403 | } |
| 404 | } |
| 405 | return null; |
| 406 | } |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 407 | } |