I need to connect to HBase via Knox using HBase Java Client. I have Knox details as following
Knox_Url: https://knox-host:port/gateway/cdp-proxy-api/hbase
Username: knox_user_name
Password: knox_password
With the below code, I am able to add the URL but not able to add the credentials.
URL url = new URL(Knox_Url);
Configuration conf = HBaseConfiguration.create();
conf.addResource(URL);
Connection con = ConnectionFactory.createConnection(conf);
I have seen other StackOverflow questions, but all they have mentioned the below properties to set in the configuration.
public void setUp() throws IOException {
config = HBaseConfiguration.create();
config.set("zookeeper.znode.parent","/hbase-unsecure");
config.set("hbase.zookeeper.quorum", ZOOKEEPER_QUORUM);
config.set("hbase.zookeeper.property.clientPort", "2181");
config.set("hbase.cluster.distributed", "true");
connection = ConnectionFactory.createConnection(config);
}
My question is there a way to use the Knox gateway details to connect to HBase and retrieve the data?
We can use RestTemplate to connect to HBase.
Config
public RestTemplate create(){
return new RestTemplateBuilder()
.basicAuthentication(user, password)
.setConnectTimeout(Duration.ofSeconds(60))
.setReadTimeout(Duration.ofSeconds(60))
.build();
}
Usage
String url = "https://host:port/gateway/cdp-proxy-api/hbase";
String response = config.create().getForEntity(url, String.class).getBody();