Java,python操作Hbase

python操作Hbase

由于Hbase是java开发的，所有如需要用python进行对Hbase的操作就需要借助Thrift等工具让语言透明化

安装Thrift之前所需准备

  1. wget http://archive.apache.org/dist/thrift/0.8.0/thrift-0.8.0.tar.gz

  2. tar xzf thrift-0.8.0.tar.gz

  3. yum install automake libtool flex bison pkgconfig gcc-c++ boost-devel libeventdevel zlib-devel python-devel ruby-devel openssl-devel

  4. yum install boost-devel.x86_64

  5. yum install libevent-devel.x86_64

安装Thrift

  1. 进入Thrift解压目录

  2. 运行：./configure --with-cpp=no --with-ruby=no

    如图：

  3. 运行：make

  4. 运行：make install

产生针对Python的Hbase的API

  • 下载hbase源码：wget http://mirrors.hust.edu.cn/apache/hbase/0.98.24/hbase-0.98.24-src.tar.gz

  • 进入源码目录并查找thrift对python的支持模块：find . -name Hbase.thrift，查找后地址为：./hbase-thrift/src/main/resources/org/apache/hadoop/hbase/thrift/Hbase.thrift

  • 进入查找后的目录：cd ./hbase-thrift/src/main/resources/org/apache/hadoop/hbase/thrift/

  • 运行命令：thrift -gen py Hbase.thrift，生成python对Hbase的模块

    如图：

  • 进入gen-py目录，将hbase目录拷贝到需要运行python脚本文件的同级目录中，命令：cp -raf gen-py/hbase/ /test/hbase_test

启动Thrift服务

  • 命令：hbase-daemon.sh start thrift

    如图：

  • 检查端口是否被监听

    命令：netstat -antup | grep 9090

执行python文件，对hbase进行操作

  • 创建create_table.py文件，进行创建表操作
from thrift import Thrift

from thrift.transport import TSocket

from thrift.transport import TTransport

from thrift.protocol import TBinaryProtocol

from hbase import Hbase

from hbase.ttypes import *

transport = TSocket.TSocket('master', 9090)

transport = TTransport.TBufferedTransport(transport)

protocol = TBinaryProtocol.TBinaryProtocol(transport)

client = Hbase.Client(protocol)

transport.open()

#==============================

base_info_contents = ColumnDescriptor(name='meta-data:', maxVersions=1)

other_info_contents = ColumnDescriptor(name='flags:', maxVersions=1)

client.createTable('new_music_table', [base_info_contents, other_info_contents])

print client.getTableNames()

运行python文件，命令：python create_table.py

  • 创建insert_data.py文件，进行插入数据操作
from thrift import Thrift

from thrift.transport import TSocket

from thrift.transport import TTransport

from thrift.protocol import TBinaryProtocol

from hbase import Hbase

from hbase.ttypes import *

transport = TSocket.TSocket('master', 9090)

transport = TTransport.TBufferedTransport(transport)

protocol = TBinaryProtocol.TBinaryProtocol(transport)

client = Hbase.Client(protocol)

transport.open()

tableName = 'new_music_table'

rowKey = '1100'

mutations = [Mutation(column="meta-data:name", value="wangqingshui"), \

        Mutation(column="meta-data:tag", value="pop"), \

        Mutation(column="flags:is_valid", value="TRUE")]

client.mutateRow(tableName, rowKey, mutations, None)
  • 创建get_one_line.py文件，进行获取数据操作
from thrift import Thrift

from thrift.transport import TSocket

from thrift.transport import TTransport

from thrift.protocol import TBinaryProtocol

from hbase import Hbase

from hbase.ttypes import *

transport = TSocket.TSocket('master', 9090)

transport = TTransport.TBufferedTransport(transport)

protocol = TBinaryProtocol.TBinaryProtocol(transport)

client = Hbase.Client(protocol)

transport.open()

tableName = 'new_music_table'

rowKey = '1100'

result = client.getRow(tableName, rowKey, None)

for r in result:

    print 'the row is ' , r.row

    print 'the name is ' , r.columns.get('meta-data:name').value

    print 'the flag is ' , r.columns.get('flags:is_valid').value
  • 创建scan_many_lines.py文件，进行对hbase数据查询操作(扫描)
from thrift import Thrift

from thrift.transport import TSocket

from thrift.transport import TTransport

from thrift.protocol import TBinaryProtocol

from hbase import Hbase

from hbase.ttypes import *

transport = TSocket.TSocket('master', 9090)

transport = TTransport.TBufferedTransport(transport)

protocol = TBinaryProtocol.TBinaryProtocol(transport)

client = Hbase.Client(protocol)

transport.open()

tableName = 'new_music_table'

scan = TScan()

id = client.scannerOpenWithScan(tableName, scan, None)

result = client.scannerGetList(id, 10)

for r in result:

    print '======'

    print 'the row is ' , r.row

    for k, v in r.columns.items():

        print "\t".join([k, v.value])

模块存放位置

hbase >> python以及thrift >> python

Java操作Hbase

向Hbase中写记录

package com.cxqy.baseoperation;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import org.apache.hadoop.conf.Configuration;

import org.apache.hadoop.hbase.Cell;

import org.apache.hadoop.hbase.HBaseConfiguration;

import org.apache.hadoop.hbase.KeyValue;

import org.apache.hadoop.hbase.client.Get;

import org.apache.hadoop.hbase.client.HTable;

import org.apache.hadoop.hbase.client.Put;

import org.apache.hadoop.hbase.client.Result;

import org.apache.hadoop.hbase.client.ResultScanner;

import org.apache.hadoop.hbase.client.Scan;

import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;

import org.apache.hadoop.hbase.filter.FilterList;

import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;

import org.apache.hadoop.hbase.util.Bytes;

public class HbasePutOneRecord {

	public static final String TableName = "user_action_table";

	public static final String ColumnFamily = "action_log";

	public static Configuration conf = HBaseConfiguration.create();

	private static HTable table;

	public static void addOneRecord(String tableName, String rowKey, String family, String qualifier, String value)

			throws IOException {

		table = new HTable(conf, tableName);

		Put put = new Put(Bytes.toBytes(rowKey));

		put.add(Bytes.toBytes(family), Bytes.toBytes(qualifier), Bytes.toBytes(value));

		table.put(put);

		System.out.println("insert record " + rowKey + " to table " + tableName + " success");

	}

	public static void main(String[] args) throws IOException {

		conf.set("hbase.master", "192.168.87.200:60000");

		conf.set("hbase.zookeeper.quorum", "192.168.87.200,192.168.87.201,192.168.87.202");

		// TODO Auto-generated method stub

		try {

			addOneRecord(TableName, "ip=192.168.87.200-001", ColumnFamily, "ip", "192.168.87.101");

			addOneRecord(TableName, "ip=192.168.87.200-001", ColumnFamily, "userid", "1100");

			addOneRecord(TableName, "ip=192.168.87.200-002", ColumnFamily, "ip", "192.168.1.201");

			addOneRecord(TableName, "ip=192.168.87.200-002", ColumnFamily, "userid", "1200");

			addOneRecord(TableName, "ip=192.168.87.200-003", ColumnFamily, "ip", "192.168.3.201");

			addOneRecord(TableName, "ip=192.168.87.200-003", ColumnFamily, "userid", "1300");

		} catch (Exception e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

	}

}

从Hbase中读记录

package com.cxqy.baseoperation;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import org.apache.hadoop.conf.Configuration;

import org.apache.hadoop.hbase.Cell;

import org.apache.hadoop.hbase.HBaseConfiguration;

import org.apache.hadoop.hbase.KeyValue;

import org.apache.hadoop.hbase.client.Get;

import org.apache.hadoop.hbase.client.HTable;

import org.apache.hadoop.hbase.client.Result;

import org.apache.hadoop.hbase.client.ResultScanner;

import org.apache.hadoop.hbase.client.Scan;

import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;

import org.apache.hadoop.hbase.filter.FilterList;

import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;

import org.apache.hadoop.hbase.util.Bytes;

public class HbaseGetOneRecord {

	public static final String TableName = "user_action_table";

	public static final String ColumnFamily = "action_log";

	public static Configuration conf = HBaseConfiguration.create();

	private static HTable table;

	public static void selectRowKey(String tablename, String rowKey) throws IOException {

		table = new HTable(conf, tablename);

		Get g = new Get(rowKey.getBytes());

		Result rs = table.get(g);

		System.out.println("==> " + new String(rs.getRow()));

		for (Cell kv : rs.rawCells()) {

			System.out.println("--------------------" + new String(kv.getRow()) + "----------------------------");

			System.out.println("Column Family: " + new String(kv.getFamily()));

			System.out.println("Column       :" + new String(kv.getQualifier()));

			System.out.println("value        : " + new String(kv.getValue()));

		}

	}

	public static void main(String[] args) throws IOException {

		conf.set("hbase.master", "192.168.87.200:60000");

		conf.set("hbase.zookeeper.quorum", "192.168.87.200,192.168.87.201,192.168.87.202");

		// TODO Auto-generated method stub

		try {

			selectRowKey(TableName, "ip=192.168.87.200-003");

		} catch (Exception e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

	}

}

在Hbase中删除某个记录

package com.cxqy.baseoperation;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import org.apache.hadoop.conf.Configuration;

import org.apache.hadoop.hbase.Cell;

import org.apache.hadoop.hbase.HBaseConfiguration;

import org.apache.hadoop.hbase.KeyValue;

import org.apache.hadoop.hbase.client.Delete;

import org.apache.hadoop.hbase.client.Get;

import org.apache.hadoop.hbase.client.HTable;

import org.apache.hadoop.hbase.client.Put;

import org.apache.hadoop.hbase.client.Result;

import org.apache.hadoop.hbase.client.ResultScanner;

import org.apache.hadoop.hbase.client.Scan;

import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;

import org.apache.hadoop.hbase.filter.FilterList;

import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;

import org.apache.hadoop.hbase.util.Bytes;

public class HbaseDelOneRecord {

	public static final String TableName = "user_action_table";

	public static final String ColumnFamily = "action_log";

	public static Configuration conf = HBaseConfiguration.create();

	private static HTable table;

	public static void delOneRecord(String tableName, String rowKey) throws IOException {

		table = new HTable(conf, tableName);

		List<Delete> list = new ArrayList<Delete>();

		Delete delete = new Delete(rowKey.getBytes());

		list.add(delete);

		table.delete(list);

		System.out.println("delete record " + rowKey + " success!");

	}

	public static void main(String[] args) throws IOException {

		conf.set("hbase.master", "192.168.87.200:60000");

		conf.set("hbase.zookeeper.quorum", "192.168.87.200,192.168.87.201,192.168.87.202");

		// TODO Auto-generated method stub

		try {

			delOneRecord(TableName, "ip=192.168.87.200-002");

		} catch (Exception e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

	}

}

从Hbase中批量读记录

package com.cxqy.baseoperation;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

import org.apache.hadoop.conf.Configuration;

import org.apache.hadoop.hbase.Cell;

import org.apache.hadoop.hbase.HBaseConfiguration;

import org.apache.hadoop.hbase.KeyValue;

import org.apache.hadoop.hbase.client.Delete;

import org.apache.hadoop.hbase.client.Get;

import org.apache.hadoop.hbase.client.HTable;

import org.apache.hadoop.hbase.client.Put;

import org.apache.hadoop.hbase.client.Result;

import org.apache.hadoop.hbase.client.ResultScanner;

import org.apache.hadoop.hbase.client.Scan;

import org.apache.hadoop.hbase.filter.BinaryComparator;

import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;

import org.apache.hadoop.hbase.filter.Filter;

import org.apache.hadoop.hbase.filter.FilterList;

import org.apache.hadoop.hbase.filter.RowFilter;

import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;

import org.apache.hadoop.hbase.util.Bytes;

public class HbaseScanManyRecords {

	public static final String TableName = "user_action_table";

	public static final String ColumnFamily = "action_log";

	public static Configuration conf = HBaseConfiguration.create();

	private static HTable table;

	public static void getManyRecords(String tableName) throws IOException {

		table = new HTable(conf, tableName);

		Scan scan = new Scan();

		ResultScanner scanner = table.getScanner(scan);

		for (Result result : scanner) {

			for (KeyValue kv : result.raw()) {

				System.out.print(new String(kv.getRow()) + " ");

				System.out.print(new String(kv.getFamily()) + ":");

				System.out.print(new String(kv.getQualifier()) + " ");

				System.out.print(kv.getTimestamp() + " ");

				System.out.println(new String(kv.getValue()));

			}

		}

	}

	public static void getManyRecordsWithFilter(String tableName, String rowKey) throws IOException {

		table = new HTable(conf, tableName);

		Scan scan = new Scan();

//		scan.setStartRow(Bytes.toBytes("ip=10.11.1.2-996"));

//		scan.setStopRow(Bytes.toBytes("ip=10.11.1.2-997"));

		Filter filter = new RowFilter(CompareOp.EQUAL, new BinaryComparator(Bytes.toBytes(rowKey)));

		scan.setFilter(filter);

		ResultScanner scanner = table.getScanner(scan);

		for (Result result : scanner) {

			for (KeyValue kv : result.raw()) {

				System.out.print(new String(kv.getRow()) + " ");

				System.out.print(new String(kv.getFamily()) + ":");

				System.out.print(new String(kv.getQualifier()) + " ");

				System.out.print(kv.getTimestamp() + " ");

				System.out.println(new String(kv.getValue()));

			}

		}

	}

	public static void getManyRecordsWithFilter(String tableName, ArrayList<String> rowKeyList) throws IOException {

		table = new HTable(conf, tableName);

		Scan scan = new Scan();

		List<Filter> filters = new ArrayList<Filter>();

		for(int i = 0; i < rowKeyList.size(); i++) {

			filters.add(new RowFilter(CompareOp.EQUAL, new BinaryComparator(Bytes.toBytes(rowKeyList.get(i)))));

		}

		FilterList filerList = new FilterList(FilterList.Operator.MUST_PASS_ONE, filters);

		scan.setFilter(filerList);

		ResultScanner scanner = table.getScanner(scan);

		for (Result result : scanner) {

			System.out.println("===============");

			for (KeyValue kv : result.raw()) {

				System.out.print(new String(kv.getRow()) + " ");

				System.out.print(new String(kv.getFamily()) + ":");

				System.out.print(new String(kv.getQualifier()) + " ");

				System.out.print(kv.getTimestamp() + " ");

				System.out.println(new String(kv.getValue()));

			}

		}

	}

	public static void main(String[] args) throws IOException {

		conf.set("hbase.master", "192.168.159.30:60000");

		conf.set("hbase.zookeeper.quorum", "192.168.159.30,192.168.159.31,192.168.159.32");

		// TODO Auto-generated method stub

		try {

//			getManyRecords(TableName);

//			getManyRecordsWithFilter(TableName, "ip=192.11.1.200-0");

			ArrayList<String> whiteRowKeyList =new ArrayList<>();

			whiteRowKeyList.add("ip=192.168.87.200-001");

			whiteRowKeyList.add("ip=192.168.87.200-003");

			getManyRecordsWithFilter(TableName, whiteRowKeyList);

			//getManyRecords(TableName);

		} catch (Exception e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

	}

}

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