Question

尝试从启用了kerberos的Datastax java驱动程序连接到cassandra安全集群。

示例连接代码：

    cluster = Cluster.builder().addContactPoint(node).withCredentials("username","password").build();
    Metadata metadata = cluster.getMetadata();
    System.out.printf("Connected to cluster: %s\n",
            metadata.getClusterName());
    for (Host host : metadata.getAllHosts()) {
        System.out.printf("Datatacenter: %s; Host: %s; Rack: %s\n",
                host.getDatacenter(), host.getAddress(), host.getRack());

    }
    session = cluster.connect();

我收到以下错误：

线程“main”中的异常com.datastax.driver.core.exceptions.AuthenticationException：host / xxxx上的身份验证错误：java.lang.RuntimeException：javax.security.auth.login.LoginException：无法从用户获取密码

at com.datastax.driver.core.Connection.waitForSaslCompletion(Connection.java:204)
at com.datastax.driver.core.Connection.initializeTransport(Connection.java:170)
at com.datastax.driver.core.Connection.<init>(Connection.java:132)
at com.datastax.driver.core.Connection.<init>(Connection.java:59)
at com.datastax.driver.core.Connection$Factory.open(Connection.java:442)
at com.datastax.driver.core.ControlConnection.tryConnect(ControlConnection.java:205)
at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:168)
at com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:81)
at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:662)
at com.datastax.driver.core.Cluster$Manager.access$100(Cluster.java:604)
at com.datastax.driver.core.Cluster.<init>(Cluster.java:69)
at com.datastax.driver.core.Cluster.buildFrom(Cluster.java:96)
at com.datastax.driver.core.Cluster$Builder.build(Cluster.java:585)
at com.datastax.training.SimpleClient.connect(SimpleClient.java:32)
at com.datastax.training.SimpleClient.main(SimpleClient.java:148)

使用的是DSE 3.1.3版。 Java驱动程序1.0.3-dse。

Answer 1

在您的代码示例中，您使用用户名/密码凭据进行身份验证，这对Kerberos无效。此博客文章包含有关将Java驱动程序与安全DSE群集一起使用的详细信息：http://www.datastax.com/dev/blog/accessing-secure-dse-clusters-with-cql-native-protocol

具有Kerberos安全性的Cassandra Java驱动程序

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