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Simple Master Slave Load Balancing

Project Description

SQLAlchemy Simple Master Slave Load Balancing(*beta*)

You can install Pymysqlslave from PyPI with

$ pip install pymysqlslave

Version update

  • 1.0.6 [BUG]MySQLDBSlave open retry not avaliable
  • 1.0.5 [BUG]MySQLDBSlave slaves unavailable. modify MySQLDBSlave reconnect_retry_nums default => 3
  • 1.0.3 add is_auto_allocation(Automatic Identification master and slave)
  • 1.0.1 initialize project

Getting Started

#!/usr/bin/env python
# coding=utf-8

import logging
logging.basicConfig(level=logging.DEBUG)
from sqlalchemy import select

from pymysqlslave import MySQLDBSlave

jianv1 = MySQLDBSlave(
    masters=[
        {
            "name": "mysql+mysqldb://jianxun:jianxun@jianxun.dev:3306/jianxunv2?charset=utf8",
            "echo": False,
            "pool_size": 5,
            "pool_recycle": 1,
        }
    ],
    slaves=[
        {
            "name": "mysql+mysqldb://jianxun:jianxun@jianxunv2.dev:3306/jianxunv2?charset=utf8",
            "echo": False,
            "pool_size": 5,
            "pool_recycle": 1,
        }
    ],
    is_auto_allocation=True)


def get_info_by_email(email):
    _t = jianv1.table.customer_member_t
    sql = select([_t]).where(_t.c.email == email)
    return jianv1.execute(sql).fetchone()


def update_info_by_email(email):
    _t = jianv1.table.customer_member_t
    sql = _t.update().where(_t.c.email == email).values(name=u"穿完")
    jianv1.execute(sql)


if __name__ == "__main__":
    result = get_info_by_email("592030542@qq.com")
    logging.info(result)
    update_info_by_email("592030542@qq.com")

TODO

  • 根据不同的环境,用户选择不同的slave
  • add retry connecting(bug: interactive_timeout)
  • add is_auto_allocation(Automatic Identification master and slave)
  • Thread Safety

Support

If you need help using pymysqlslave or have found a bug, please open a github issue.

Release History

Release History

This version
History Node

1.0.8

History Node

1.0.7

History Node

1.0.6

History Node

1.0.5

History Node

1.0.4

History Node

1.0.3

History Node

1.0.1

Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
pymysqlslave-1.0.8-py2.7.egg (9.4 kB) Copy SHA256 Checksum SHA256 2.7 Egg Dec 25, 2015
pymysqlslave-1.0.8.tar.gz (4.9 kB) Copy SHA256 Checksum SHA256 Source Dec 25, 2015

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