Examples with NNHAServiceTarget org.apache.hadoop.hdfs.tools.NNHAServiceTarget used on opensource projects

Example 1 with NNHAServiceTarget

use of org.apache.hadoop.hdfs.tools.NNHAServiceTarget in project hadoop by apache.

the class TestNNHealthCheck method doNNHealthCheckTest.

private void doNNHealthCheckTest() throws IOException {
    MockNameNodeResourceChecker mockResourceChecker = new MockNameNodeResourceChecker(conf);
    cluster.getNameNode(0).getNamesystem().setNNResourceChecker(mockResourceChecker);
    NNHAServiceTarget haTarget = new NNHAServiceTarget(conf, DFSUtil.getNamenodeNameServiceId(conf), "nn1");
    final String expectedTargetString;
    if (conf.get(DFS_NAMENODE_LIFELINE_RPC_ADDRESS_KEY + "." + DFSUtil.getNamenodeNameServiceId(conf) + ".nn1") != null) {
        expectedTargetString = haTarget.getHealthMonitorAddress().toString();
    } else {
        expectedTargetString = haTarget.getAddress().toString();
    }
    assertTrue("Expected haTarget " + haTarget + " containing " + expectedTargetString, haTarget.toString().contains(expectedTargetString));
    HAServiceProtocol rpc = haTarget.getHealthMonitorProxy(conf, conf.getInt(HA_HM_RPC_TIMEOUT_KEY, HA_HM_RPC_TIMEOUT_DEFAULT));
    // Should not throw error, which indicates healthy.
    rpc.monitorHealth();
    mockResourceChecker.setResourcesAvailable(false);
    try {
        // Should throw error - NN is unhealthy.
        rpc.monitorHealth();
        fail("Should not have succeeded in calling monitorHealth");
    } catch (HealthCheckFailedException hcfe) {
        GenericTestUtils.assertExceptionContains("The NameNode has no resources available", hcfe);
    } catch (RemoteException re) {
        GenericTestUtils.assertExceptionContains("The NameNode has no resources available", re.unwrapRemoteException(HealthCheckFailedException.class));
    }
}

Example 2 with NNHAServiceTarget

use of org.apache.hadoop.hdfs.tools.NNHAServiceTarget in project cdap by caskdata.

the class AbstractHDFSStats method getHAWebURL.

@Nullable
private URL getHAWebURL() throws IOException {
    String activeNamenode = null;
    String nameService = getNameService();
    HdfsConfiguration hdfsConf = new HdfsConfiguration(conf);
    String nameNodePrincipal = conf.get(DFSConfigKeys.DFS_NAMENODE_USER_NAME_KEY, "");
    hdfsConf.set(CommonConfigurationKeys.HADOOP_SECURITY_SERVICE_USER_NAME_KEY, nameNodePrincipal);
    for (String nnId : DFSUtil.getNameNodeIds(conf, nameService)) {
        HAServiceTarget haServiceTarget = new NNHAServiceTarget(hdfsConf, nameService, nnId);
        HAServiceProtocol proxy = haServiceTarget.getProxy(hdfsConf, 10000);
        HAServiceStatus serviceStatus = proxy.getServiceStatus();
        if (HAServiceProtocol.HAServiceState.ACTIVE != serviceStatus.getState()) {
            continue;
        }
        activeNamenode = DFSUtil.getNamenodeServiceAddr(hdfsConf, nameService, nnId);
    }
    if (activeNamenode == null) {
        throw new IllegalStateException("Could not find an active namenode");
    }
    return rpcToHttpAddress(URI.create(activeNamenode));
}