Querying Zookeeper from Python

Install the prerequisites. Below works for Debian-based distros such as Ubuntu/Mint:

apt-get install libzookeeper-mt-dev

Install python libraries:

pip install zkpython pykeeper

Example code below shows making a connection, getting the names of some child nodes and pulling info from each of those child nodes:

import pykeeper
import json

client = pykeeper.ZooKeeper('192.168.1.2:2181')
client.connect()

coords = client.get_children('/druid/coordinator/_COORDINATOR')

list_of_coord_addresses = []

for coord in coords:
  zk_coord = client.get('/druid/coordinator/_COORDINATOR/%s' % coord )
  list_of_coord_addresses.append(zk_coord[0])

print(list_of_coord_addresses)

Unfortunately I can’t get this installed on CentOS.