guocheng18 / happybase-high-availability

HappyBase with High Availability

HappyBase with High Availability

HappyBase is a developer-friendly Python library to interact with Apache HBase. However it limits the connection to only one Thrift Server, which may cause serious problems when the server is down. To solve it, this repo implements high available connection for HappyBase, i.e. switching connection to other live Thrift Servers when the currently connected is down and periodically recovering failed connections.

The only changed api is happybase.Connection with two arguments added:

• servers: List of Thrift server addresses (If given, the host and port arguments will be ignored)
• recovery_delay: Cycle time of recovery of failed connections (60 seconds by default)

Example

import happybase

conn = happybase.Connection(
    servers=[
        {"host": "192.168.0.1", "port": 9090},
        {"host": "192.168.0.2", "port": 9090},
        {"host": "192.168.0.3", "port": 9090},
    ],
    recovery_delay=60,
)

Installation

git clone https://github.com/guocheng2018/happybase.git
cd happybase
python -m pip install .