@Deactivate
public void deactivate() {
CompletableFuture.allOf(inMemoryDatabase.close(), partitionedDatabase.close())
.thenCompose(v -> coordinator.close())
.whenComplete(
(result, error) -> {
if (error != null) {
log.warn("Failed to cleanly close databases.", error);
} else {
log.info("Successfully closed databases.");
}
});
clusterCommunicator.removeSubscriber(QUEUE_UPDATED_TOPIC);
maps.values().forEach(this::unregisterMap);
if (applicationService != null) {
applicationService.removeListener(appListener);
}
eventDispatcher.shutdown();
queuePollExecutor.shutdown();
log.info("Stopped");
}
@Activate
public void activate() {
localNodeId = clusterService.getLocalNode().id();
// load database configuration
File databaseDefFile = new File(PARTITION_DEFINITION_FILE);
log.info("Loading database definition: {}", databaseDefFile.getAbsolutePath());
Map<String, Set<NodeInfo>> partitionMap;
try {
DatabaseDefinitionStore databaseDefStore = new DatabaseDefinitionStore(databaseDefFile);
if (!databaseDefFile.exists()) {
createDefaultDatabaseDefinition(databaseDefStore);
}
partitionMap = databaseDefStore.read().getPartitions();
} catch (IOException e) {
throw new IllegalStateException("Failed to load database config", e);
}
String[] activeNodeUris =
partitionMap
.values()
.stream()
.reduce((s1, s2) -> Sets.union(s1, s2))
.get()
.stream()
.map(this::nodeToUri)
.toArray(String[]::new);
String localNodeUri = nodeToUri(NodeInfo.of(clusterService.getLocalNode()));
Protocol protocol = new CopycatCommunicationProtocol(clusterService, clusterCommunicator);
ClusterConfig clusterConfig =
new ClusterConfig()
.withProtocol(protocol)
.withElectionTimeout(electionTimeoutMillis(activeNodeUris))
.withHeartbeatInterval(heartbeatTimeoutMillis(activeNodeUris))
.withMembers(activeNodeUris)
.withLocalMember(localNodeUri);
CopycatConfig copycatConfig =
new CopycatConfig()
.withName("onos")
.withClusterConfig(clusterConfig)
.withDefaultSerializer(new DatabaseSerializer())
.withDefaultExecutor(
Executors.newSingleThreadExecutor(
new NamedThreadFactory("copycat-coordinator-%d")));
coordinator = new DefaultClusterCoordinator(copycatConfig.resolve());
DatabaseConfig inMemoryDatabaseConfig =
newDatabaseConfig(BASE_PARTITION_NAME, newInMemoryLog(), activeNodeUris);
inMemoryDatabase =
coordinator.getResource(
inMemoryDatabaseConfig.getName(),
inMemoryDatabaseConfig
.resolve(clusterConfig)
.withSerializer(copycatConfig.getDefaultSerializer())
.withDefaultExecutor(copycatConfig.getDefaultExecutor()));
List<Database> partitions =
partitionMap
.entrySet()
.stream()
.map(
entry -> {
String[] replicas =
entry.getValue().stream().map(this::nodeToUri).toArray(String[]::new);
return newDatabaseConfig(entry.getKey(), newPersistentLog(), replicas);
})
.map(
config -> {
Database db =
coordinator.getResource(
config.getName(),
config
.resolve(clusterConfig)
.withSerializer(copycatConfig.getDefaultSerializer())
.withDefaultExecutor(copycatConfig.getDefaultExecutor()));
return db;
})
.collect(Collectors.toList());
partitionedDatabase = new PartitionedDatabase("onos-store", partitions);
CompletableFuture<Void> status =
coordinator
.open()
.thenCompose(
v ->
CompletableFuture.allOf(inMemoryDatabase.open(), partitionedDatabase.open())
.whenComplete(
(db, error) -> {
if (error != null) {
log.error("Failed to initialize database.", error);
} else {
log.info("Successfully initialized database.");
}
}));
Futures.getUnchecked(status);
transactionManager = new TransactionManager(partitionedDatabase, consistentMapBuilder());
partitionedDatabase.setTransactionManager(transactionManager);
eventDispatcher =
Executors.newSingleThreadExecutor(
groupedThreads("onos/store/manager", "map-event-dispatcher"));
queuePollExecutor =
Executors.newFixedThreadPool(4, groupedThreads("onos/store/manager", "queue-poll-handler"));
clusterCommunicator.<String>addSubscriber(
QUEUE_UPDATED_TOPIC,
data -> new String(data, Charsets.UTF_8),
name -> {
DefaultDistributedQueue q = queues.get(name);
if (q != null) {
q.tryPoll();
}
},
queuePollExecutor);
log.info("Started");
}