调用org.apache.zookeeper.server.quorum.QuorumPeerMain.main()无效。
答案 0 :(得分:60)
Netfix opensourced Curator一个框架,可以更方便地使用Zookeeper。它内置了测试服务器类。只需将此 test 依赖项添加到您的项目描述符中,无论是maven,gradle还是:
org.apache.curator:curator-framework:4.0.1
org.apache.curator:curator-test:4.0.1
以下是测试要点。
TestingServer zkTestServer;
CuratorFramework cli;
@Before
public void startZookeeper() throws Exception {
zkTestServer = new TestingServer(2181);
cli = CuratorFrameworkFactory.newClient(zkTestServer.getConnectString(), new RetryOneTime(2000));
cli.start();
}
@After
public void stopZookeeper() throws IOException {
cli.close();
zkTestServer.stop();
}
使用cli
创建任何测试数据非常简单(需要curator-framework
依赖项)。
cli.create()
.creatingParentsIfNeeded()
.forPath("/a1", "testvalue".getBytes("UTF-8"));
答案 1 :(得分:45)
要启动ZooKeeper
,您必须执行ZooKeeperServerMain
课程。
您可以使用以下代码在嵌入模式下启动ZooKeeper
。
Properties startupProperties = ...
QuorumPeerConfig quorumConfiguration = new QuorumPeerConfig();
try {
quorumConfiguration.parseProperties(startupProperties);
} catch(Exception e) {
throw new RuntimeException(e);
}
zooKeeperServer = new ZooKeeperServerMain();
final ServerConfig configuration = new ServerConfig();
configuration.readFrom(quorumConfiguration);
new Thread() {
public void run() {
try {
zooKeeperServer.runFromConfig(configuration);
} catch (IOException e) {
log.error("ZooKeeper Failed", e);
}
}
}.start();
答案 2 :(得分:12)
你可以使用这样的东西。
int clientPort = 21818; // none-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);
NIOServerCnxn.Factory standaloneServerFactory = new NIOServerCnxn.Factory(new InetSocketAddress(clientPort), numConnections);
standaloneServerFactory.startup(server); // start the server.
要关闭它,只需致电standaloneServerFactory.shutdown()
答案 3 :(得分:3)
以1的答案为基础,添加使用临时端口(由zkPort
显示)并针对最新的ZK API进行更新:
int tickTime = 2000;
int numConnections = 5000;
String dataDirectory = System.getProperty("java.io.tmpdir");
File dir = new File(dataDirectory, "zookeeper").getAbsoluteFile();
ZooKeeperServer server = new ZooKeeperServer(dir, dir, tickTime);
standaloneServerFactory = ServerCnxnFactory.createFactory(0, numConnections);
int zkPort = standaloneServerFactory.getLocalPort();
standaloneServerFactory.startup(server);
答案 4 :(得分:2)
ServerConfig config = new ServerConfig();
config.parse(new String[] {port, dir});
ZooKeeperServerMain zk = new ZooKeeperServerMain();
zk.runFromConfig(config);
答案 5 :(得分:0)
GeoffBourne答案的更新版本。
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();