def etcd_service_start_force(cls):
cls._etcd_service_trystart()
if cls._etcd_check_running():
_sysinfo("etcd service start ok!")
return
if cls._etcd_check_removed():
#try to run as proxy mode
_syswarn("etcd was removed, try start as proxy mode !")
cls._etcd_try_start_as_proxy()
_syswarn("etcd was removed, start as proxy mode ok !")
else:
raise Exp(errno.EPERM, "etcd service start fail, please check it!")
class Etcd_manage(object):
def __init__(self):
self.config = Config()
pass
def member_add(self, hosts):
origin_cluster_list = self._etcd_get_init_cluster().keys()
new_cluster_list = origin_cluster_list
add_list = []
for host in hosts.split(','):
if host in new_cluster_list:
_dwarn("host:%s is already in etcd cluster, please check it!" % (host))
continue
else:
# add etcd member one by one
self._etcd_health_wait()
self._etcd_add_member(host)
new_cluster_list.append(host)
try:
cmd = "python %s/app/admin/node.py etcd --state %s --hosts %s" % (self.config.home, "existing", ','.join(new_cluster_list))
self._exec_node(host, cmd)
except Exp, e:
self._etcd_del_member(host)
_syserror("etcd set conf on host:%s fail, errmsg:%s" % (host, e.err))
raise Exp(e.errno, "etcd set conf on host:%s fail, errmsg:%s" % (host, e.err))
_sysinfo("etcd member add hosts:%s ok !" % (host))
print "member add hosts:%s ok !" % (hosts)
def member_del(self, hosts, proxy=False):
origin_cluster_list = self._etcd_get_init_cluster().keys()
del_list = hosts.split(',')
new_cluster_list = origin_cluster_list
new_del_list = []
for host in del_list:
if host not in new_cluster_list:
_dwarn("host:%s is not in etcd cluster, please check it!" % (host))
del_list.remove(host)
continue
else:
#etcd member remove host
new_cluster_list.remove(host)
for host in del_list:
if len(host) == 0:
continue
_dmsg("wait etcd for health, host:%s" % (host))
self._etcd_health_wait()
_dmsg("etcd is health, begin check is permit to remove... host:%s" % (host))
if not self.etcd_check_member_remove_permition(host):
_dwarn("host:%s not permit to remove. pelease check it!\n" % (host))
new_cluster_list.append(host)
continue
_dmsg("host:%s permit to remove, begin remove..." % (host))
try:
cmd = "etcdctl member list | grep %s | awk '{print $1}' | awk -F':' '{print $1}'| awk -F'[' '{print $1}'| xargs etcdctl member remove" % (host)
self._exec_node(new_cluster_list[0], cmd)
_sysinfo("etcd member remove %s ok !" % (host))
new_del_list.append(host)
except Exp, e:
_syserror("etcd member remove %s fail ! errmsg:%s" % (host, e.err))
raise Exp(errno.EPERM, "etcd member remove %s fail, %s" % (host, e.err))
try:
cmd = "etcdctl member list | grep %s | awk '{print $1}' | awk -F':' '{print $1}'| awk -F'[' '{print $1}'| xargs etcdctl member remove" % (host)
self._exec_node(new_cluster_list[0], cmd)
_sysinfo("etcd member remove %s ok !" % (host))
new_del_list.append(host)
except Exp, e:
_syserror("etcd member remove %s fail ! errmsg:%s" % (host, e.err))
raise Exp(errno.EPERM, "etcd member remove %s fail, %s" % (host, e.err))
if proxy and len(new_del_list) > 0:
#set hosts run as proxy mode
cmd = "python %s/app/admin/node.py etcd --state %s --hosts %s" % (self.config.home, "existing", ','.join(new_cluster_list))
args = [[x, cmd] for x in del_list]
mutil_exec(self._exec_node, args)
_sysinfo("etcd member remove %s ok , new_cluster_list:%s!" % (del_list, new_cluster_list))
print "member del hosts:%s ok !" % (new_del_list)
def member_list(self):
_etcd_cluster = self._etcd_get_init_cluster()
for host in _etcd_cluster.keys():
if _etcd_cluster[host] == "true":
print "%s : leader" % (host)
else:
print "%s" % (host)
def create_cluster(self, hosts, proxy_nodes=None):
cluster_list = hosts.split(',')
proxy_list = []