不确定您是否仍然需要帮助。我认为设置hadoop.security.authentication属性缺少您的代码段。

我使用以下代码片段连接到安全HBase（在CDH5上）。您可以试一下。

  config.set（hbase.zookeeper.quorum，zookeeperHosts）; 
 config.set（hbase.zookeeper.property.clientPort，zookeeperPort）; 
 config.set（hadoop.security.authentication，kerberos）; 
 config.set（hbase.security.authentication，kerberos）; 
 config.set（hbase.master.kerberos.principal，HBASE_MASTER_PRINCIPAL）; 
 config.set（hbase.regionserver.kerberos.principal，HBASE_RS_PRINCIPAL）; 

 UserGroupInformation.setConfiguration（config）; 
用户组信息。 

 HBaseAdmin admins = new HBaseAdmin（config）; 
 TableName [] tables = admins.listTableNames（）; （TableName table：tables）

 {
 System.out.println（table.toString（））; 
} 
 

Hi I am trying to write a java client for secure hbase. I want to do kinit also from code itself for that i`m using the usergroup information class. Can anyone point out where am I going wrong here?

this is the main method that Im trying to connect o hbase from.

I have to add the configuration in the CONfiguration object rather than using the xml, because the client can be located anywhere.

Please see the code below:

    public static void main(String [] args) {
    try {
        System.setProperty(CommonConstants.KRB_REALM, ConfigUtil.getProperty(CommonConstants.HADOOP_CONF, "krb.realm"));
        System.setProperty(CommonConstants.KRB_KDC, ConfigUtil.getProperty(CommonConstants.HADOOP_CONF,"krb.kdc"));
        System.setProperty(CommonConstants.KRB_DEBUG, "true");

        final Configuration config = HBaseConfiguration.create();

        config.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION, AUTH_KRB);
        config.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHORIZATION, AUTHORIZATION);
        config.set(CommonConfigurationKeysPublic.FS_AUTOMATIC_CLOSE_KEY, AUTO_CLOSE);
        config.set(CommonConfigurationKeysPublic.FS_DEFAULT_NAME_KEY, defaultFS);
        config.set("hbase.zookeeper.quorum", ConfigUtil.getProperty(CommonConstants.HBASE_CONF, "hbase.host"));
        config.set("hbase.zookeeper.property.clientPort", ConfigUtil.getProperty(CommonConstants.HBASE_CONF, "hbase.port"));
        config.set("hbase.client.retries.number", Integer.toString(0));
        config.set("zookeeper.session.timeout", Integer.toString(6000));
        config.set("zookeeper.recovery.retry", Integer.toString(0));
        config.set("hbase.master", "gauravt-namenode.pbi.global.pvt:60000");
        config.set("zookeeper.znode.parent", "/hbase-secure");
        config.set("hbase.rpc.engine", "org.apache.hadoop.hbase.ipc.SecureRpcEngine");
        config.set("hbase.security.authentication", AUTH_KRB);
        config.set("hbase.security.authorization", AUTHORIZATION);
        config.set("hbase.master.kerberos.principal", "hbase/gauravt-namenode.pbi.global.pvt@pbi.global.pvt");
        config.set("hbase.master.keytab.file", "D:/var/lib/bda/secure/keytabs/hbase.service.keytab");
        config.set("hbase.regionserver.kerberos.principal", "hbase/gauravt-datanode2.pbi.global.pvt@pbi.global.pvt");
        config.set("hbase.regionserver.keytab.file", "D:/var/lib/bda/secure/keytabs/hbase.service.keytab");

        UserGroupInformation.setConfiguration(config);
        UserGroupInformation userGroupInformation = UserGroupInformation.loginUserFromKeytabAndReturnUGI("hbase/gauravt-datanode2.pbi.global.pvt@pbi.global.pvt", "D:/var/lib/bda/secure/keytabs/hbase.service.keytab");
        UserGroupInformation.setLoginUser(userGroupInformation);

        User user = User.create(userGroupInformation);

        user.runAs(new PrivilegedExceptionAction<Object>() {

            @Override
            public Object run() throws Exception {
                HBaseAdmin admins = new HBaseAdmin(config);

                if(admins.isTableAvailable("ambarismoketest")) {
                    System.out.println("Table is available");
                };

                HConnection connection = HConnectionManager.createConnection(config);

                HTableInterface table = connection.getTable("ambarismoketest");



                admins.close();
                System.out.println(table.get(new Get(null)));
                return table.get(new Get(null));
            }
        });
        System.out.println(UserGroupInformation.getLoginUser().getUserName());


    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

I`m getting the following exception:

    Caused by: org.apache.hadoop.ipc.RemoteException(javax.security.sasl.SaslException): GSS initiate failed
at org.apache.hadoop.hbase.security.HBaseSaslRpcClient.readStatus(HBaseSaslRpcClient.java:110)
at org.apache.hadoop.hbase.security.HBaseSaslRpcClient.saslConnect(HBaseSaslRpcClient.java:146)
at org.apache.hadoop.hbase.ipc.RpcClient$Connection.setupSaslConnection(RpcClient.java:762)
at org.apache.hadoop.hbase.ipc.RpcClient$Connection.access$600(RpcClient.java:354)
at org.apache.hadoop.hbase.ipc.RpcClient$Connection$2.run(RpcClient.java:883)
at org.apache.hadoop.hbase.ipc.RpcClient$Connection$2.run(RpcClient.java:880)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
at org.apache.hadoop.hbase.ipc.RpcClient$Connection.setupIOstreams(RpcClient.java:880)
... 33 more

Any pointers would be helpful.

Not sure if you still need help. I think setting the "hadoop.security.authentication" property is missing from your snippet.

I am using following code snippet to connect to secure HBase (on CDH5). You can give a try.

config.set("hbase.zookeeper.quorum", zookeeperHosts);
config.set("hbase.zookeeper.property.clientPort", zookeeperPort);
config.set("hadoop.security.authentication", "kerberos");
config.set("hbase.security.authentication", "kerberos");
config.set("hbase.master.kerberos.principal", HBASE_MASTER_PRINCIPAL);
config.set("hbase.regionserver.kerberos.principal", HBASE_RS_PRINCIPAL);

UserGroupInformation.setConfiguration(config);
UserGroupInformation.loginUserFromKeytab(ZOOKEEPER_PRINCIPAL,ZOOKEEPER_KEYTAB);

HBaseAdmin admins = new HBaseAdmin(config);
TableName[] tables  = admins.listTableNames();

for(TableName table: tables){
    System.out.println(table.toString());
}