我有一个用java7编译的maven项目，它使用springioc来测试hbase客户机jar的使用。
依赖关系如下：

<dependency>
    <groupId>org.apache.hbase</groupId>
    <artifactId>hbase-client</artifactId>
    <version>1.0.0-cdh5.5.4</version>
</dependency>

<dependency>
    <groupId>org.apache.hbase</groupId>
    <artifactId>hbase-server</artifactId>
    <version>1.0.0-cdh5.5.4</version>
</dependency>

我有一个测试（使用junit）创建一个本地集群，创建一个表并加载一些数据，然后客户端连接到集群，执行查找并关闭集群，然后再次尝试启动集群以检查客户端的重新连接机制。
问题是，在集群关闭后的启动过程中，出现了一个异常，经过长时间的研究，似乎关闭过程没有成功完成。
任何帮助找出如何正确关闭集群的方法都会很好。
代码上下文：

@RunWith(SpringJUnit4ClassRunner.class)
public class TestHBaseUserOfflineReconnection
{
    @Value("${userTableName}")
    private static String userTableName = "TestTable";

    @Autowired
    @Qualifier("hbaseUserOfflineReconnectDao")
    private UserDao userOfflineReconnectDao;

    @Autowired
    private DemographicBenchmark benchmark;

    private Table htable;

    private static LocalHBaseCluster hbaseCluster;

    private static MiniZooKeeperCluster zooKeeperCluster;

    private static Configuration configuration;

    static Connection conn = null;

    @BeforeClass
    public static void setup() throws IOException, InterruptedException
    {
        // delete the default local folder for that HBase stores its files
        String userName = System.getProperty("user.name");
        FileUtils.deleteDirectory(new File("/tmp/hbase-" + userName));
        initHbase();
    }

    public static void initHbase() throws IOException, InterruptedException
    {
        configuration = HBaseConfiguration.create();
        zooKeeperCluster = new MiniZooKeeperCluster(configuration);
        zooKeeperCluster.setDefaultClientPort(2181);
        zooKeeperCluster.startup(new File("target/zookeepr-" + System.currentTimeMillis()));

        hbaseCluster = new LocalHBaseCluster(configuration, 1);
        hbaseCluster.startup();
    }

    @Before
    public void initeHTable() throws IOException
    {
        configuration.set("fs.hdfs.impl", org.apache.hadoop.hdfs.DistributedFileSystem.class.getName());

        conn = ConnectionFactory.createConnection(configuration);

        HTableDescriptor table = new HTableDescriptor(TableName.valueOf(userTableName));

        table.addFamily(new HColumnDescriptor("cf"));

        conn.getAdmin().createTable(table);

        htable = conn.getTable(TableName.valueOf(userTableName));
    }

    public static void shutdown() throws IOException
    {
        hbaseCluster.shutdown();
        hbaseCluster.waitOnMaster(0);
        zooKeeperCluster.shutdown();
    }

@Test
    public void testHBaseReconnection() throws IOException, TkException, InterruptedException
    {
      // do some lookups with the client, and all goes well..

      shutdown();
      initHbase(); // HERE's I GET THE EXCEPTION

      // some more code...
      shutdown(); // after test finished, closing the cluster
    }
}

我得到的例外是：
错误2016-07-13 16:48:03849[b.defaultrpcserver.handler=4，queue=1，port=46727]org.apache.hadoop.hbase.master.masterrpcservices:region server localhost，44545148417682471报告了一个致命错误：中止region server localhost，44545，1468417682471:未处理：区域服务器启动失败原因：java.io.ioexception:org.apache.hadoop.hbase.regionserver.hregionserver.convertshrowabletoioe（hregionserver）上的区域服务器启动失败。java:2827)在org.apache.hadoop.hbase.regionserver.hregionserver.handlereportfordutyresponse（hregionserver。java:1317)在org.apache.hadoop.hbase.regionserver.hregionserver.run（hregionserver。java:852)在java.lang.thread.run（线程。java:745)原因：org.apache.hadoop.metrics2.metricsexception:metrics source regionserver，sub=服务器已存在！在org.apache.hadoop.metrics2.lib.defaultmetricssystem.newsourcename（defaultmetricssystem。java:135)在org.apache.hadoop.metrics2.lib.defaultmetricssystem.sourcename（defaultmetricssystem。java:112)在org.apache.hadoop.metrics2.impl.metricssystemimpl.register（metricssystemimpl。java:228)在org.apache.hadoop.hbase.metrics.basesourceimpl.（basesourceimpl。java:75)位于org.apache.hadoop.hbase.regionserver.metricsregionserversourceimpl.（metricsregionserversourceimpl。java:66)位于org.apache.hadoop.hbase.regionserver.metricsregionserversourceimpl.（metricsregionserversourceimpl。java:58)在org.apache.hadoop.hbase.regionserver.metricsregionserversourcefactoryimpl.createserver（metricsregionserversourcefactoryimpl。java:46)在org.apache.hadoop.hbase.regionserver.metricsregionserver.（metricsregionserver。java:38)在org.apache.hadoop.hbase.regionserver.hregionserver.handlereportfordutyresponse（hregionserver。java:1301)
... 2个以上