Examples with ZooKeeperServer org.apache.zookeeper.server.ZooKeeperServer used on opensource projects

Example 11 with ZooKeeperServer

use of org.apache.zookeeper.server.ZooKeeperServer in project xian by happyyangyuan.

the class TestingZooKeeperMain method getZooKeeperServer.

private ZooKeeperServer getZooKeeperServer(ServerCnxnFactory cnxnFactory) throws Exception {
    Field zkServerField = ServerCnxnFactory.class.getDeclaredField("zkServer");
    zkServerField.setAccessible(true);
    ZooKeeperServer zkServer;
    // Wait until the zkServer field is non-null or up to 1s, whichever comes first.
    long startTime = System.currentTimeMillis();
    do {
        zkServer = (ZooKeeperServer) zkServerField.get(cnxnFactory);
    } while ((zkServer == null) && ((System.currentTimeMillis() - startTime) < MAX_WAIT_MS));
    return zkServer;
}

Example 12 with ZooKeeperServer

use of org.apache.zookeeper.server.ZooKeeperServer in project xian by happyyangyuan.

the class TestingZooKeeperMain method blockUntilStarted.

@SuppressWarnings("SynchronizationOnLocalVariableOrMethodParameter")
@Override
public void blockUntilStarted() throws Exception {
    latch.await();
    ServerCnxnFactory cnxnFactory = getServerConnectionFactory();
    if (cnxnFactory != null) {
        final ZooKeeperServer zkServer = getZooKeeperServer(cnxnFactory);
        if (zkServer != null) {
            synchronized (zkServer) {
                if (!zkServer.isRunning()) {
                    zkServer.wait();
                }
            }
        }
    }
    Thread.sleep(1000);
    Exception exception = startingException.get();
    if (exception != null) {
        throw exception;
    }
}

Example 13 with ZooKeeperServer

use of org.apache.zookeeper.server.ZooKeeperServer in project incubator-pulsar by apache.

the class ZooKeeperUtil method startServer.

public void startServer() throws Exception {
    // create a ZooKeeper server(dataDir, dataLogDir, port)
    LOG.debug("Running ZK server");
    // ServerStats.registerAsConcrete();
    ClientBase.setupTestEnv();
    ZkTmpDir = File.createTempFile("zookeeper", "test");
    ZkTmpDir.delete();
    ZkTmpDir.mkdir();
    zks = new ZooKeeperServer(ZkTmpDir, ZkTmpDir, ZooKeeperServer.DEFAULT_TICK_TIME);
    serverFactory = new NIOServerCnxnFactory();
    serverFactory.configure(zkaddr, 100);
    serverFactory.startup(zks);
    boolean b = ClientBase.waitForServerUp(getZooKeeperConnectString(), ClientBase.CONNECTION_TIMEOUT);
    LOG.debug("Server up: " + b);
    // create a zookeeper client
    LOG.debug("Instantiate ZK Client");
    zkc = ZooKeeperClient.newBuilder().connectString(getZooKeeperConnectString()).build();
    // initialize the zk client with values
    zkc.create("/ledgers", new byte[0], Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
    zkc.create("/ledgers/available", new byte[0], Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
}

Example 14 with ZooKeeperServer

use of org.apache.zookeeper.server.ZooKeeperServer in project incubator-pulsar by apache.

the class ZooKeeperServerAspect method zkServerConstructor.

@After("zkServerConstructorPointCut()")
public void zkServerConstructor(JoinPoint joinPoint) throws Throwable {
    // ZooKeeperServer instance was created
    ZooKeeperServer zkServer = (ZooKeeperServer) joinPoint.getThis();
    synchronized (ZooKeeperServerAspect.class) {
        if (metricsRegistered) {
            // We can only register the metrics a single time for the process
            return;
        }
        metricsRegistered = true;
    }
    Gauge.build().name("zookeeper_server_znode_count").help("Number of z-nodes stored").create().setChild(new Gauge.Child() {

        @Override
        public double get() {
            return zkServer.getZKDatabase().getNodeCount();
        }
    }).register();
    Gauge.build().name("zookeeper_server_data_size_bytes").help("Size of all of z-nodes stored (bytes)").create().setChild(new Gauge.Child() {

        @Override
        public double get() {
            return zkServer.getZKDatabase().getDataTree().approximateDataSize();
        }
    }).register();
    Gauge.build().name("zookeeper_server_connections").help("Number of currently opened connections").create().setChild(new Gauge.Child() {

        @Override
        public double get() {
            return zkServer.serverStats().getNumAliveClientConnections();
        }
    }).register();
    Gauge.build().name("zookeeper_server_watches_count").help("Number of watches").create().setChild(new Gauge.Child() {

        @Override
        public double get() {
            return zkServer.getZKDatabase().getDataTree().getWatchCount();
        }
    }).register();
    Gauge.build().name("zookeeper_server_ephemerals_count").help("Number of ephemerals z-nodes").create().setChild(new Gauge.Child() {

        @Override
        public double get() {
            return zkServer.getZKDatabase().getDataTree().getEphemeralsCount();
        }
    }).register();
}

Example 15 with ZooKeeperServer

use of org.apache.zookeeper.server.ZooKeeperServer in project ecf by eclipse.

the class ZooDiscoveryContainer method startStandAlone.

/**
 * Start a ZooKeeer server locally to write nodes to. Implied by
 * {@link IDiscoveryConfig#ZOODISCOVERY_FLAVOR_STANDALONE} configuration.
 *
 * @param conf
 */
void startStandAlone(final Configuration conf) {
    if (ZooDiscoveryContainer.zooKeeperServer != null && ZooDiscoveryContainer.zooKeeperServer.isRunning())
        return;
    else if (ZooDiscoveryContainer.zooKeeperServer != null && !ZooDiscoveryContainer.zooKeeperServer.isRunning())
        try {
            ZooDiscoveryContainer.zooKeeperServer.startup();
            return;
        } catch (Exception e) {
            // $NON-NLS-1$
            Logger.log(LogService.LOG_DEBUG, "Zookeeper server cannot be started! ", e);
        }
    try {
        ZooDiscoveryContainer.zooKeeperServer = new ZooKeeperServer();
        FileTxnSnapLog fileTxnSnapLog = new FileTxnSnapLog(conf.getZookeeperDataFile(), conf.getZookeeperDataFile());
        ZooDiscoveryContainer.zooKeeperServer.setTxnLogFactory(fileTxnSnapLog);
        ZooDiscoveryContainer.zooKeeperServer.setTickTime(conf.getTickTime());
        Factory cnxnFactory = new NIOServerCnxn.Factory(new InetSocketAddress(conf.getClientPort()));
        cnxnFactory.startup(ZooDiscoveryContainer.zooKeeperServer);
    } catch (Exception e) {
        Logger.log(LogService.LOG_ERROR, "Zookeeper server cannot be started! Possibly another instance is already running on the same port. ", e);
    }
}