python实现mysql数据导入hbase

Python可以通过HBase的Python API来实现将MySQL数据导入HBase的操作。具体步骤如下：

1. 安装HBase的Python API

可以通过pip安装happybase库来使用HBase的Python API：

pip install happybase

2. 连接HBase

使用happybase库连接HBase：

import happybase

connection = happybase.Connection('localhost')

3. 创建HBase表

使用happybase库创建HBase表：

table_name = 'my_table'
column_family = 'cf'

connection.create_table(
    table_name,
    {column_family: dict()}
)

4. 连接MySQL

使用Python的MySQL库连接MySQL：

import mysql.connector

cnx = mysql.connector.connect(
    user='user',
    password='password',
    host='localhost',
    database='my_database'
)

5. 从MySQL中读取数据

使用MySQL库从MySQL中读取数据：

cursor = cnx.cursor()

query = 'SELECT * FROM my_table'
cursor.execute(query)

for row in cursor:
    print(row)

6. 将数据导入HBase

使用happybase库将数据导入HBase：

table = connection.table(table_name)

for row in cursor:
    key = row[0]
    data = {
        column_family + ':column1': row[1],
        column_family + ':column2': row[2],
        column_family + ':column3': row[3]
    }
    table.put(key, data)

完整代码如下：

import happybase
import mysql.connector

connection = happybase.Connection('localhost')

table_name = 'my_table'
column_family = 'cf'

connection.create_table(
    table_name,
    {column_family: dict()}
)

cnx = mysql.connector.connect(
    user='user',
    password='password',
    host='localhost',
    database='my_database'
)

cursor = cnx.cursor()

query = 'SELECT * FROM my_table'
cursor.execute(query)

table = connection.table(table_name)

for row in cursor:
    key = row[0]
    data = {
        column_family + ':column1': row[1],
        column_family + ':column2': row[2],
        column_family + ':column3': row[3]
    }
    table.put(key, data)