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 | 13a6f5a | 2014-11-12 10:07:47 -0800 | [diff] [blame] | 70 | // FIXME: point to appropriate path |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 71 | public static final String LOG_FILE_PREFIX = "/tmp/onos-copy-cat-log_"; |
| 72 | |
| 73 | // 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] | 74 | // TODO: Set the path to /opt/onos/config |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 75 | private static final String CONFIG_DIR = "../config"; |
| 76 | |
| 77 | private static final String DEFAULT_MEMBER_FILE = "tablets.json"; |
| 78 | |
| 79 | private static final String DEFAULT_TABLET = "default"; |
| 80 | |
| 81 | // TODO: make this configurable |
| 82 | // initial member configuration file path |
| 83 | private String initialMemberConfig = DEFAULT_MEMBER_FILE; |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 84 | |
| 85 | private Copycat copycat; |
| 86 | private DatabaseClient client; |
| 87 | |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 88 | // guarded by synchronized block |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 89 | private ClusterConfig<TcpMember> clusterConfig; |
| 90 | |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 91 | private CountDownLatch clusterEventLatch; |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 92 | private ClusterEventListener clusterEventListener; |
| 93 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 94 | private Map<String, Set<DefaultControllerNode>> tabletMembers; |
| 95 | |
| 96 | private boolean autoAddMember = false; |
| 97 | |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 98 | @Activate |
| 99 | public void activate() { |
Madan Jampani | dfbfa18 | 2014-11-04 22:06:41 -0800 | [diff] [blame] | 100 | |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 101 | // TODO: Not every node should be part of the consensus ring. |
Madan Jampani | dfbfa18 | 2014-11-04 22:06:41 -0800 | [diff] [blame] | 102 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 103 | // load tablet configuration |
| 104 | File file = new File(CONFIG_DIR, initialMemberConfig); |
| 105 | log.info("Loading config: {}", file.getAbsolutePath()); |
| 106 | TabletDefinitionStore tabletDef = new TabletDefinitionStore(file); |
| 107 | try { |
| 108 | tabletMembers = tabletDef.read(); |
| 109 | } catch (IOException e) { |
| 110 | log.error("Failed to load tablet config {}", file); |
| 111 | throw new IllegalStateException("Failed to load tablet config", e); |
| 112 | } |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 113 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 114 | // load default tablet configuration and start copycat |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 115 | clusterConfig = new TcpClusterConfig(); |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 116 | Set<DefaultControllerNode> defaultMember = tabletMembers.get(DEFAULT_TABLET); |
| 117 | if (defaultMember == null || defaultMember.isEmpty()) { |
| 118 | log.error("No member found in [{}] tablet configuration.", |
| 119 | DEFAULT_TABLET); |
| 120 | throw new IllegalStateException("No member found in tablet configuration"); |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 121 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 122 | } |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 123 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 124 | final ControllerNode localNode = clusterService.getLocalNode(); |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 125 | for (ControllerNode member : defaultMember) { |
| 126 | final TcpMember tcpMember = new TcpMember(member.ip().toString(), |
| 127 | member.tcpPort()); |
| 128 | if (localNode.equals(member)) { |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 129 | clusterConfig.setLocalMember(tcpMember); |
| 130 | } else { |
| 131 | clusterConfig.addRemoteMember(tcpMember); |
| 132 | } |
| 133 | } |
| 134 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 135 | // note: from this point beyond, clusterConfig requires synchronization |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 136 | clusterEventLatch = new CountDownLatch(1); |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 137 | clusterEventListener = new InternalClusterEventListener(); |
| 138 | clusterService.addListener(clusterEventListener); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 139 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 140 | if (clusterService.getNodes().size() < clusterConfig.getMembers().size()) { |
| 141 | // current cluster size smaller then expected |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 142 | try { |
| 143 | if (!clusterEventLatch.await(120, TimeUnit.SECONDS)) { |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 144 | log.info("Starting with {}/{} nodes cluster", |
| 145 | clusterService.getNodes().size(), |
| 146 | clusterConfig.getMembers().size()); |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 147 | } |
| 148 | } catch (InterruptedException e) { |
| 149 | log.info("Interrupted waiting for others", e); |
| 150 | } |
| 151 | } |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 152 | |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 153 | final TcpCluster cluster; |
| 154 | synchronized (clusterConfig) { |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 155 | // Create the cluster. |
| 156 | cluster = new TcpCluster(clusterConfig); |
| 157 | } |
| 158 | log.info("Starting cluster: {}", cluster); |
| 159 | |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 160 | |
| 161 | StateMachine stateMachine = new DatabaseStateMachine(); |
Madan Jampani | 2ee2000 | 2014-11-06 20:06:12 -0800 | [diff] [blame] | 162 | Log consensusLog = new MapDBLog(LOG_FILE_PREFIX + localNode.id(), |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 163 | ClusterMessagingProtocol.SERIALIZER); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 164 | |
Madan Jampani | 9b19a82 | 2014-11-04 21:37:13 -0800 | [diff] [blame] | 165 | copycat = new Copycat(stateMachine, consensusLog, cluster, copycatMessagingProtocol); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 166 | copycat.start(); |
| 167 | |
Yuta HIGUCHI | f846844 | 2014-11-11 10:09:20 -0800 | [diff] [blame] | 168 | client = new DatabaseClient(copycat); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 169 | |
| 170 | log.info("Started."); |
| 171 | } |
| 172 | |
Yuta HIGUCHI | 657626e | 2014-11-04 20:54:58 -0800 | [diff] [blame] | 173 | @Deactivate |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 174 | public void deactivate() { |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 175 | clusterService.removeListener(clusterEventListener); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 176 | copycat.stop(); |
Yuta HIGUCHI | 657626e | 2014-11-04 20:54:58 -0800 | [diff] [blame] | 177 | log.info("Stopped."); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 178 | } |
| 179 | |
| 180 | @Override |
| 181 | public boolean createTable(String name) { |
| 182 | return client.createTable(name); |
| 183 | } |
| 184 | |
| 185 | @Override |
| 186 | public void dropTable(String name) { |
| 187 | client.dropTable(name); |
| 188 | } |
| 189 | |
| 190 | @Override |
| 191 | public void dropAllTables() { |
| 192 | client.dropAllTables(); |
| 193 | } |
| 194 | |
| 195 | @Override |
| 196 | public List<String> listTables() { |
| 197 | return client.listTables(); |
| 198 | } |
| 199 | |
| 200 | @Override |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 201 | public VersionedValue get(String tableName, String key) { |
| 202 | BatchReadRequest batchRequest = new BatchReadRequest.Builder().get(tableName, key).build(); |
| 203 | ReadResult readResult = batchRead(batchRequest).getAsList().get(0); |
| 204 | if (readResult.status().equals(ReadStatus.OK)) { |
| 205 | return readResult.value(); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 206 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 207 | throw new DatabaseException("get failed due to status: " + readResult.status()); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 208 | } |
| 209 | |
| 210 | @Override |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 211 | public BatchReadResult batchRead(BatchReadRequest batchRequest) { |
| 212 | return new BatchReadResult(client.batchRead(batchRequest)); |
Yuta HIGUCHI | 361664e | 2014-11-06 17:28:47 -0800 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | @Override |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 216 | public BatchWriteResult batchWrite(BatchWriteRequest batchRequest) { |
| 217 | return new BatchWriteResult(client.batchWrite(batchRequest)); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | @Override |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 221 | public VersionedValue put(String tableName, String key, byte[] value) { |
| 222 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder().put(tableName, key, value).build(); |
| 223 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 224 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 225 | return writeResult.previousValue(); |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 226 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 227 | throw new DatabaseException("put failed due to status: " + writeResult.status()); |
| 228 | } |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 229 | |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 230 | @Override |
| 231 | public boolean putIfAbsent(String tableName, String key, byte[] value) { |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 232 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder() |
| 233 | .putIfAbsent(tableName, key, value).build(); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 234 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 235 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 236 | return true; |
| 237 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 238 | return false; |
| 239 | } |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 240 | throw new DatabaseException("putIfAbsent failed due to status: " |
| 241 | + writeResult.status()); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 242 | } |
| 243 | |
| 244 | @Override |
| 245 | public boolean putIfVersionMatches(String tableName, String key, |
| 246 | byte[] value, long version) { |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 247 | BatchWriteRequest batchRequest = |
| 248 | new BatchWriteRequest.Builder() |
| 249 | .putIfVersionMatches(tableName, key, value, version).build(); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 250 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 251 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 252 | return true; |
| 253 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 254 | return false; |
| 255 | } |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 256 | throw new DatabaseException("putIfVersionMatches failed due to status: " |
| 257 | + writeResult.status()); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 258 | } |
| 259 | |
| 260 | @Override |
| 261 | public boolean putIfValueMatches(String tableName, String key, |
| 262 | byte[] oldValue, byte[] newValue) { |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 263 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder() |
| 264 | .putIfValueMatches(tableName, key, oldValue, newValue).build(); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 265 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 266 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 267 | return true; |
| 268 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 269 | return false; |
| 270 | } |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 271 | throw new DatabaseException("putIfValueMatches failed due to status: " |
| 272 | + writeResult.status()); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 273 | } |
| 274 | |
| 275 | @Override |
| 276 | public VersionedValue remove(String tableName, String key) { |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 277 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder() |
| 278 | .remove(tableName, key).build(); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 279 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 280 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 281 | return writeResult.previousValue(); |
| 282 | } |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 283 | throw new DatabaseException("remove failed due to status: " |
| 284 | + writeResult.status()); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | @Override |
| 288 | public boolean removeIfVersionMatches(String tableName, String key, |
| 289 | long version) { |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 290 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder() |
| 291 | .removeIfVersionMatches(tableName, key, version).build(); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 292 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 293 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 294 | return true; |
| 295 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 296 | return false; |
| 297 | } |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 298 | throw new DatabaseException("removeIfVersionMatches failed due to status: " |
| 299 | + writeResult.status()); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 300 | } |
| 301 | |
| 302 | @Override |
| 303 | public boolean removeIfValueMatches(String tableName, String key, |
| 304 | byte[] value) { |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 305 | BatchWriteRequest batchRequest = new BatchWriteRequest.Builder() |
| 306 | .removeIfValueMatches(tableName, key, value).build(); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 307 | WriteResult writeResult = batchWrite(batchRequest).getAsList().get(0); |
| 308 | if (writeResult.status().equals(WriteStatus.OK)) { |
| 309 | return true; |
| 310 | } else if (writeResult.status().equals(WriteStatus.PRECONDITION_VIOLATION)) { |
| 311 | return false; |
| 312 | } |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 313 | throw new DatabaseException("removeIfValueMatches failed due to status: " |
| 314 | + writeResult.status()); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 315 | } |
| 316 | |
| 317 | @Override |
| 318 | public void addMember(final ControllerNode node) { |
| 319 | final TcpMember tcpMember = new TcpMember(node.ip().toString(), |
| 320 | node.tcpPort()); |
| 321 | log.info("{} was added to the cluster", tcpMember); |
| 322 | synchronized (clusterConfig) { |
| 323 | clusterConfig.addRemoteMember(tcpMember); |
| 324 | } |
Madan Jampani | 08822c4 | 2014-11-04 17:17:46 -0800 | [diff] [blame] | 325 | } |
| 326 | |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 327 | private final class InternalClusterEventListener |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 328 | implements ClusterEventListener { |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 329 | |
| 330 | @Override |
| 331 | public void event(ClusterEvent event) { |
| 332 | // TODO: Not every node should be part of the consensus ring. |
| 333 | |
| 334 | final ControllerNode node = event.subject(); |
| 335 | final TcpMember tcpMember = new TcpMember(node.ip().toString(), |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 336 | node.tcpPort()); |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 337 | |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 338 | switch (event.type()) { |
| 339 | case INSTANCE_ACTIVATED: |
| 340 | case INSTANCE_ADDED: |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 341 | if (autoAddMember) { |
| 342 | synchronized (clusterConfig) { |
| 343 | if (!clusterConfig.getMembers().contains(tcpMember)) { |
| 344 | log.info("{} was automatically added to the cluster", tcpMember); |
| 345 | clusterConfig.addRemoteMember(tcpMember); |
| 346 | } |
| 347 | } |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 348 | } |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 349 | break; |
| 350 | case INSTANCE_DEACTIVATED: |
| 351 | case INSTANCE_REMOVED: |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 352 | if (autoAddMember) { |
| 353 | Set<DefaultControllerNode> members |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 354 | = tabletMembers.getOrDefault(DEFAULT_TABLET, |
| 355 | Collections.emptySet()); |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 356 | // remove only if not the initial members |
| 357 | if (!members.contains(node)) { |
| 358 | synchronized (clusterConfig) { |
| 359 | if (clusterConfig.getMembers().contains(tcpMember)) { |
| 360 | log.info("{} was automatically removed from the cluster", tcpMember); |
| 361 | clusterConfig.removeRemoteMember(tcpMember); |
| 362 | } |
| 363 | } |
| 364 | } |
| 365 | } |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 366 | break; |
| 367 | default: |
| 368 | break; |
| 369 | } |
Yuta HIGUCHI | 79a1e5e | 2014-11-05 17:42:01 -0800 | [diff] [blame] | 370 | if (copycat != null) { |
| 371 | log.debug("Current cluster: {}", copycat.cluster()); |
| 372 | } |
| 373 | clusterEventLatch.countDown(); |
Yuta HIGUCHI | 5027b6b | 2014-11-05 16:23:26 -0800 | [diff] [blame] | 374 | } |
| 375 | |
| 376 | } |
| 377 | |
Yuta HIGUCHI | 60731cb | 2014-11-11 01:34:46 -0800 | [diff] [blame] | 378 | @Override |
| 379 | public void removeMember(final ControllerNode node) { |
| 380 | final TcpMember tcpMember = new TcpMember(node.ip().toString(), |
| 381 | node.tcpPort()); |
| 382 | log.info("{} was removed from the cluster", tcpMember); |
| 383 | synchronized (clusterConfig) { |
| 384 | clusterConfig.removeRemoteMember(tcpMember); |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | @Override |
| 389 | public Collection<ControllerNode> listMembers() { |
| 390 | if (copycat == null) { |
| 391 | return ImmutableList.of(); |
| 392 | } |
| 393 | Set<ControllerNode> members = new HashSet<>(); |
| 394 | for (Member member : copycat.cluster().members()) { |
| 395 | if (member instanceof TcpMember) { |
| 396 | final TcpMember tcpMember = (TcpMember) member; |
| 397 | // TODO assuming tcpMember#host to be IP address, |
| 398 | // but if not lookup DNS, etc. first |
| 399 | IpAddress ip = IpAddress.valueOf(tcpMember.host()); |
| 400 | int tcpPort = tcpMember.port(); |
| 401 | NodeId id = getNodeIdFromIp(ip, tcpPort); |
| 402 | if (id == null) { |
| 403 | log.info("No NodeId found for {}:{}", ip, tcpPort); |
| 404 | continue; |
| 405 | } |
| 406 | members.add(new DefaultControllerNode(id, ip, tcpPort)); |
| 407 | } |
| 408 | } |
| 409 | return members; |
| 410 | } |
| 411 | |
| 412 | private NodeId getNodeIdFromIp(IpAddress ip, int tcpPort) { |
| 413 | for (ControllerNode node : clusterService.getNodes()) { |
| 414 | if (node.ip().equals(ip) && |
| 415 | node.tcpPort() == tcpPort) { |
| 416 | return node.id(); |
| 417 | } |
| 418 | } |
| 419 | return null; |
| 420 | } |
Madan Jampani | 44e6a54 | 2014-11-12 01:06:51 -0800 | [diff] [blame] | 421 | } |