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#
# Copyright Red Hat, Inc. 2005
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any
# later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
# MA 02139, USA.
# Author: Stanko Kupcevic <kupcevic@redhat.com>
#
class ClusterOps:
def __init__(self, environ):
self.environ = environ
def enable_cluster(self, nodes):
for node in nodes:
self.environ.log('enabling cluster startup on ' + node)
self.environ.execute_remote(node, 'chkconfig', ['ccsd', 'on'])
self.environ.execute_remote(node, 'chkconfig', ['cman', 'on'])
self.environ.execute_remote(node, 'chkconfig', ['fenced', 'on'])
self.environ.execute_remote(node, 'chkconfig', ['rgmanager', 'on'])
def disable_cluster(self, nodes):
for node in nodes:
self.environ.log('disabling cluster startup on ' + node)
self.environ.execute_remote(node, 'chkconfig', ['ccsd', 'off'])
self.environ.execute_remote(node, 'chkconfig', ['cman', 'off'])
self.environ.execute_remote(node, 'chkconfig', ['fenced', 'off'])
self.environ.execute_remote(node, 'chkconfig', ['rgmanager', 'off'])
def reboot_nodes(self, nodes):
for node in nodes:
self.__reboot(node)
self.environ.log('Waiting for nodes to boot up ...')
self.__wait_nodes(nodes)
self.environ.log('All nodes up and running')
def __reboot(self, node):
o, e, s = self.environ.execute_remote(node, 'init', ['6'])
if s != 0:
return False
return True
def __wait_nodes(self, nodes):
# wait 'till nodes stop responding to pings
nodes_up = nodes[:]
while True:
for node in nodes_up[:]:
if self.ping(node) == False:
nodes_up.remove(node)
if len(nodes_up) == 0:
break
else:
self.sleep(5)
# wait 'till rgamanger on all nodes comes up
rgman_down = nodes[:]
while True:
for node in rgman_down[:]:
o, e, s = self.environ.execute_remote(node, 'service', ['rgmanager', 'status'])
if s == 0:
rgman_down.remove(node)
if len(rgman_down) == 0:
return
else:
self.sleep(5)
def ping(self, host):
o, e, s = self.environ.execute('ping', ['-c', '1', host])
#self.environ.log('ping ' + host + ' returned ' + str(s))
return s == 0
def distribute_conf(self, conf, version, nodes):
node = nodes[0]
self.environ.log('Distributing cluster.conf, version ' + str(version) + ', to cluster')
self.environ.copy_to_host(conf, node, '/etc/cluster/cluster.conf')
self.environ.log('Running ccs/cman_tools')
self.environ.execute_remote(node, 'ccs_tool', ['update', '/etc/cluster/cluster.conf'])
self.environ.execute_remote(node, 'cman_tool', ['version', '-r', str(version)])
def sleep(self, secs):
# sleep, while not blocking GUI
self.environ.execute('sleep', [str(secs)])
def cluster_report(self, nodes):
self.environ.log('cluster reports:', True)
for node in nodes:
o, e, s = self.environ.execute_remote(node, 'clustat', [])
self.environ.log('------------------------------------', True)
self.environ.log(node + ' clustat: ', True)
if s == 0:
self.environ.log(o, True)
else:
self.environ.log(e, True)
o, e, s = self.environ.execute_remote(node, 'cat', ['/proc/cluster/status'])
self.environ.log(node + ' /proc/cluster/status:', True)
if s == 0:
self.environ.log(o, True)
else:
self.environ.log(e, True)
self.environ.log('------------------------------------', True)

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