hypertable bug

hypertable bug

/**
 * A client for the ThriftBroker
 */
class Client : private ClientHelper, public ThriftGen::HqlServiceClient {
public:
  Client(const std::string &host, int port, int timeout_ms = 300000,
         bool open = true)
    : ClientHelper(host, port, timeout_ms), HqlServiceClient(protocol),
      m_do_close(false) {


    if (open) {
      transport->open();
      m_do_close = true;
    }
  }


  virtual ~Client() {
    if (m_do_close) {
      transport->close();
      m_do_close = false;
    }
  }


private:
  bool m_do_close;
};

在操作Hbase前，需要先打开到Hbase Thrift service的连接，即 transport->open()，在操作完 Hbase之后，需要关闭连接，即 transport->close()

4. 编写c++客户端

同样仿照tutorial，将tutorial/cpp中的Makefile和CppClient.cpp拷到hello/cpp下。

 

1) 将CppClient.cpp重命名为Client.cpp，并修改

#include <stdio.h>

#include <unistd.h>

#include <sys/time.h>

 

#include <protocol/TBinaryProtocol.h>

#include <transport/TSocket.h>

#include <transport/TTransportUtils.h>

 

#include "../gen-cpp/Hello.h"

#include <string>

 

using namespace std;

using namespace apache::thrift;

using namespace apache::thrift::protocol;

using namespace apache::thrift::transport;

 

using namespace demo;

 

using namespace boost;

 

int main(int argc, char** argv) {

  shared_ptr<TTransport> socket(new TSocket("localhost", 7911));

  shared_ptr<TTransport> transport(new TBufferedTransport(socket));

  shared_ptr<TProtocol> protocol(new TBinaryProtocol(transport));

  HelloClient client(protocol);

 

  try {

    transport->open();

 

    string ret;

    client.helloString(ret, "world");

    printf("%s\n", ret.c_str());

 

    transport->close();

  } catch (TException &tx) {

    printf("ERROR: %s\n", tx.what());

  }

 

}