Is it possible to start a zookeeper server instance in process, say for unit tests?

Question

Calling org.apache.zookeeper.server.quorum.QuorumPeerMain.main() isn\'t working.

Answer 1

An updated version of GeoffBourne's answer.

    int clientPort = 2199; // not standard
    int numConnections = 5000;
    int tickTime = 2000;
    String dataDirectory = System.getProperty("java.io.tmpdir");

    File dir = new File(dataDirectory, "zookeeper").getAbsoluteFile();

    ZooKeeperServer server = new ZooKeeperServer(dir, dir, tickTime);
    ServerCnxnFactory factory = new NIOServerCnxnFactory();
    factory.configure(new InetSocketAddress(clientPort), numConnections);

    factory.startup(server); // start the server.

    // ...shutdown some time later
    factory.shutdown();