#!/usr/bin/env python # 4 IP groups, across 10 nodes, with each group on different # interfaces/VLANs. 80 addresses in total but not evenly balanced, to # help check some of the more extreme behaviour. from ctdb_takeover import Cluster, Node, process_args process_args() addresses1 = ['192.168.1.%d' % n for n in range(1, 41)] addresses2 = ['192.168.2.%d' % n for n in range(1, 21)] addresses3 = ['192.168.3.%d' % n for n in range(1, 11)] addresses4 = ['192.168.4.%d' % n for n in range(1, 11)] # Try detecting imbalance with square root of number of nodes? Or # just with a parameter indicating how unbalanced you're willing to # accept... c = Cluster() for i in range(10): c.add_node(Node([addresses1, addresses2, addresses3, addresses4])) c.recover() c.random_iterations()