['_MDELETE', '_MGET', '_MPOST', '_MPUT', '__class__', '__contains__', '__del__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribute__', '__hash__', '__init__', '__module__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', '_allow_reconnect', '_allow_redirect', '_base_uri', '_check_cluster_id', '_comparison_conditions', '_del_conditions', '_discover', '_get_headers', '_handle_server_response', '_machines_cache', '_next_server', '_protocol', '_read_options', '_read_timeout', '_result_from_response', '_sanitize_key', '_stats', '_use_proxies', '_wrap_request', 'allow_redirect', 'api_execute', 'api_execute_json', 'base_uri', 'delete', 'election', 'eternal_watch', 'expected_cluster_id', 'get', 'get_lock', 'host', 'http', 'key_endpoint', 'leader', 'leader_stats', 'machines', 'members', 'password', 'pop', 'port', 'protocol', 'read', 'read_timeout', 'set', 'stats', 'store_stats', 'test_and_set', 'update', 'username', 'version_prefix', 'watch', 'write']node
類屬性json
httpapi
實例屬性網絡
allow_redirectapp
base_uridom
election # Election primitives were removed from etcd 2.0ssh
expected_cluster_id函數
hostui
key_endpointthis
leader
leader_stats
machines
members
port
protocol
read
read_timeout
stats
store_stats
version_prefix
instancemethod 實例方法
api_execute
api_execute_json
delete
eternal_watch
get
get_lock
pop
set
test_and_set
update
watch
write
函數原型:
def __init__( self, host='127.0.0.1', # mixed:類型-字符串(IP地址),元組((host,port),(host.port),...) 支持多個etcd服務端的鏈接。 port=4001, # srv_domain=None, version_prefix='/v2', read_timeout=60, allow_redirect=True, protocol='http', cert=None, ca_cert=None, username=None, password=None, allow_reconnect=False, use_proxies=False, expected_cluster_id=None, per_host_pool_size=10 ):
實例:
import etcd
# client = etcd.Client() # this will create a client against etcd server running on localhost on port 4001 client = etcd.Client(port=4002) client = etcd.Client(host='127.0.0.1', port=4003) client = etcd.Client(host='127.0.0.1', port=4003, allow_redirect=False) # wont let you run sensitive commands on non-leader machines, default is true client = etcd.Client( host='127.0.0.1', port=4003, allow_reconnect=True, protocol='https',)
1 client = etcd.Client() 2 lock = client.get_lock('/customer1', ttl=60) 3 4 # Use the lock object: 5 lock.acquire() 6 lock.is_locked() # True 7 lock.renew(60) 8 lock.release() 9 lock.is_locked() # False 10 11 # The lock object may also be used as a context manager: 12 client = etcd.Client() 13 lock = client.get_lock('/customer1', ttl=60) 14 with lock as my_lock: 15 do_stuff() 16 lock.is_locked() # True 17 lock.renew(60) 18 lock.is_locked() # False
1 # 建立etcd客戶端對象, 2 # allow_redirect=True 這個參數是當斷鏈的時候,etcd會再次複用connect建立可用的鏈接 3 client = etcd.Client( 4 host='127.0.0.1', 5 port=4003, 6 allow_reconnect=True, 7 protocol='https',) 8 9 client.write('/nodes/n1', 1)
10 10 # with ttl 設置幾秒,幾秒後這數據就沒了 11 client.write('/nodes/n2', 2, ttl=4) # sets the ttl to 4 seconds 12
12 # create only 13 client.write('/nodes/n3', 'test', prevExist=False) prevExist 若是數據有的話,就再也不插入了。 14 15 client.write('/nodes/n3', 'test2', prevValue='test1') 保證value之前是test1 16 17 # mkdir 18 client.write('/nodes/queue', dir=True) 新版本不用這個也行,最少我不用指明dir 也是能夠建立mkdir的 19
19 # Append a value to a queue dir 20 client.write('/nodes/queue', 'test', append=True) #will write i.e. /nodes/queue/11 21 client.write('/nodes/queue', 'test2', append=True) #will write i.e. /nodes/queue/12
對於數據的修改也能夠用 update
1 result = client.read('/foo') 2 print(result.value) # bar 3 result.value += u'bar' 4 updated = client.update(result) 5 print(updated.value)
用read()方法 從etcd獲取節點數據
client.read('/nodes/n2').value #recursive遞歸的目錄 #sorted 排序 r = client.read('/nodes', recursive=True, sorted=True) for child in r.children: print("%s: %s" % (child.key,child.value)) #至關於zookeeper的watch監聽 client.read('/nodes/n2', wait=True) #Waits for a change in value in the key before returning. client.read('/nodes/n2', wait=True, waitIndex=10)