本文整理汇总了Python中agent.Agent.getNodesList方法的典型用法代码示例。如果您正苦于以下问题：Python Agent.getNodesList方法的具体用法？Python Agent.getNodesList怎么用？Python Agent.getNodesList使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类agent.Agent的用法示例。
在下文中一共展示了Agent.getNodesList方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: ctl_listnodes
# 需要导入模块: from agent import Agent [as 别名]
# 或者: from agent.Agent import getNodesList [as 别名]
def ctl_listnodes(*args):
"""List current connected nodes."""
def success(result):
assert type(result) == list, "Result should be a list"
for node in sorted(result):
print node
agent=Agent()
d=agent.getNodesList()
d.addCallback(success)
return d示例2: getDeferInstance
# 需要导入模块: from agent import Agent [as 别名]
# 或者: from agent.Agent import getNodesList [as 别名]
def getDeferInstance(nodeslist=None):
"""Instantiate a XenCluster object and associated Nodes.
This function open SSH and XenAPI connections to all actives nodes.
It take a (string) list of node's hostname as optionnal argument, if not given,
the list will fetched from cxm'master.
Return a deferred that will be fired when all nodes are ready.
If a node is not online, the deferred will fail.
"""
log.info("Loading cluster...")
nodes = dict()
def instantiate(results):
failedNodes = dict()
for result in results:
if not result[0]:
failedNodes[nodeslist[results.index(result)]] = result[1].getErrorMessage()
if len(failedNodes) > 0:
raise InstantiationError(failedNodes)
return XenCluster(nodes)
def add_node(result, hostname):
nodes[hostname] = result
def create_nodes(result):
ds = list()
for hostname in result:
d = threads.deferToThread(lambda x: Node(x), hostname)
d.addCallback(add_node, hostname)
ds.append(d)
dl = defer.DeferredList(ds, consumeErrors=1)
dl.addCallback(instantiate)
return dl
def failed(reason):
raise Exception("Can't connect to local master: %s" % reason.getErrorMessage())
if not nodeslist:
agent = Agent()
d = agent.getNodesList()
d.addCallback(create_nodes)
d.addErrback(failed)
return d
else:
return create_nodes(nodeslist)示例3: run
# 需要导入模块: from agent import Agent [as 别名]
# 或者: from agent.Agent import getNodesList [as 别名]
#.........这里部分代码省略.........
# Check argument length according to subcommand
if reason.check(TypeError):
print "Usage :"
print get_help(args[0]),
returnCode=3
reactor.addSystemEventTrigger('after', 'shutdown', exitWithCode, returnCode)
if not reactor._stopped:
reactor.stop()
def runCmd(result):
# result is a cluster instance
d=defer.maybeDeferred(cmd, result, options, *args[1::])
d.addCallback(lambda _: result.disconnect())
return d
def getCluster(result):
# result is the list of nodes
# Check if local node is in cluster
if not socket.gethostname() in result:
print """
**
******
*** ***
*** ***
*** ** *** WARNING
*** ** ***
*** ** *** ***********************
*** ** *** * NODE NOT IN CLUSTER *
*** ** *** ***********************
*** ***
*** ** *** The node you are working on is
*** ** *** not a cluster member.
*** ***
**************************
**********************
"""
# Instanciate cluster
d=xencluster.XenCluster.getDeferInstance(result)
d.addCallback(runCmd)
d.addCallback(lambda _: reactor.stop())
d.addErrback(fail)
def checkState(result):
if result['state']=="panic":
print """
**
******
*** ***
*** ***
*** ** *** WARNING
*** ** ***
*** ** *** **********************
*** ** *** * PANIC MODE ENGAGED *
*** ** *** **********************
*** ***
*** ** ***
*** ** *** Be careful !
*** ***
**************************
**********************
"""
if result['state']=="recovery":
print """
**
******
*** ***
*** ***
*** ** *** WARNING
*** ** ***
*** ** *** ************************
*** ** *** * RECOVERY IN PROGRESS *
*** ** *** ************************
*** ***
*** ** *** You should watch logs and wait
*** ** *** the end of process before
*** *** doing someting.
**************************
**********************
"""
if cmd:
agent=Agent()
# Get cluster state
d=agent.getState()
d.addCallback(checkState)
d.addErrback(fail)
# Get nodes list to instantiate cluster
d=agent.getNodesList()
d.addCallback(getCluster)
d.addErrback(fail)
reactor.run()
else:
syntax_error('Subcommand %s not found!' % args[0])