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sample java code to connect hive server using thrift client
package com.rajkrrsingh.thrift.client;
import org.apache.hive.service.auth.HiveAuthFactory;
import org.apache.hive.service.auth.PlainSaslHelper;
import org.apache.hive.service.cli.thrift.*;
import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.transport.TTransport;
import javax.security.sasl.SaslException;
import java.util.Iterator;
import java.util.List;
/*
* to make it work add the hive-service and hadoop-client dependencies
* in pom.xml
*/
public class ThriftClient {
public static void main(String[] args) throws TException, SaslException {
TTransport transport = HiveAuthFactory.getSocketTransport("127.0.0.1", 10000,99999);
transport = PlainSaslHelper.getPlainTransport("hive", "hive", transport);
TBinaryProtocol protocol = new TBinaryProtocol(transport);
TCLIService.Client client = new TCLIService.Client(protocol);
transport.open();
TOpenSessionReq openReq = new TOpenSessionReq();
TOpenSessionResp openResp = client.OpenSession(openReq);
TSessionHandle sessHandle = openResp.getSessionHandle();
TExecuteStatementReq execReq = new TExecuteStatementReq(sessHandle, "show tables");
TExecuteStatementResp execResp = client.ExecuteStatement(execReq);
TOperationHandle stmtHandle = execResp.getOperationHandle();
TFetchResultsReq fetchReq = new TFetchResultsReq(stmtHandle, TFetchOrientation.FETCH_FIRST, 100);
TFetchResultsResp resultsResp = client.FetchResults(fetchReq);
List<TColumn> res=resultsResp.getResults().getColumns();
for(TColumn tCol: res){
Iterator<String> it = tCol.getStringVal().getValuesIterator();
while (it.hasNext()){
System.out.println(it.next());
}
}
TCloseOperationReq closeReq = new TCloseOperationReq();
closeReq.setOperationHandle(stmtHandle);
client.CloseOperation(closeReq);
TCloseSessionReq closeConnectionReq = new TCloseSessionReq(sessHandle);
client.CloseSession(closeConnectionReq);
transport.close();
}
}
@bmvsprasad
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bmvsprasad commented May 23, 2021

The thrift client is simple and good

@996739940
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996739940 commented Jul 6, 2021

excuse, how to get hive log? if you have time,can you tell me? please..

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