Patroni (kazoo) timeout but Zookeeper cluster working - apache-zookeeper

Question

Run
[root#centos81-01 ~]# patroni pgsql11-0.yml
to setup PostgreSQL Cluste
and got an error
2020-03-27 15:59:18,498 ERROR: Unhandled exception in connection loop
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/kazoo/protocol/connection.py", line 565, in _connect_attempt
read_timeout, connect_timeout = self._connect(host, hostip, port)
TypeError: _kazoo_connect() takes 3 positional arguments but 4 were given
2020-03-27 15:59:18,499 INFO: Zookeeper session closed, state: CLOSED
Exception in thread Thread-4:
Traceback (most recent call last):
File "/usr/lib64/python3.6/threading.py", line 916, in _bootstrap_inner
self.run()
File "/usr/lib64/python3.6/threading.py", line 864, in run
self._target(*self._args, **self._kwargs)
File "/usr/local/lib/python3.6/site-packages/kazoo/protocol/connection.py", line 497, in zk_loop
if retry(self._connect_loop, retry) is STOP_CONNECTING:
File "/usr/local/lib/python3.6/site-packages/kazoo/retry.py", line 126, in __call__
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/kazoo/protocol/connection.py", line 537, in _connect_loop
status = self._connect_attempt(host, hostip, port, retry)
File "/usr/local/lib/python3.6/site-packages/kazoo/protocol/connection.py", line 565, in _connect_attempt
read_timeout, connect_timeout = self._connect(host, hostip, port)
TypeError: _kazoo_connect() takes 3 positional arguments but 4 were given
Traceback (most recent call last):
File "/usr/local/bin/patroni", line 11, in <module>
sys.exit(main())
File "/usr/local/lib/python3.6/site-packages/patroni/__init__.py", line 224, in main
return patroni_main()
File "/usr/local/lib/python3.6/site-packages/patroni/__init__.py", line 186, in patroni_main
patroni = Patroni(conf)
File "/usr/local/lib/python3.6/site-packages/patroni/__init__.py", line 31, in __init__
self.dcs = get_dcs(self.config)
File "/usr/local/lib/python3.6/site-packages/patroni/dcs/__init__.py", line 89, in get_dcs
return item(config[name])
File "/usr/local/lib/python3.6/site-packages/patroni/dcs/zookeeper.py", line 77, in __init__
self._client.start()
File "/usr/local/lib/python3.6/site-packages/kazoo/client.py", line 635, in start
raise self.handler.timeout_exception("Connection time-out")
kazoo.handlers.threading.KazooTimeoutError: Connection time-out
[root#centos81-01 ~]#
On el8 CentOS Linux release 8.1.1911 (Core)
with
cdiff (1.0)
click (7.1.1)
kazoo (2.7.0)
patroni (1.6.4)
pip (9.0.3)
prettytable (0.7.2)
psutil (5.7.0)
psycopg2 (2.8.3)
psycopg2-binary (2.8.4)
python-dateutil (2.6.1)
pytz (2019.3)
PyYAML (5.3.1)
setuptools (39.2.0)
six (1.11.0)
tzlocal (2.0.0)
urllib3 (1.25.8)
i can add any ENV/libs info if needed.

Answer 1

Problem solved with downgrading kazoo to v2.6.1:
pip3 uninstall kazoo
pip3 install kazoo==2.6.1
Patroni CONNECTED to Apache Zookeeper DCS Claster:
[root#centos81-01 ~]# patroni pgsql11-0.yml
2020-03-27 16:59:52,539 INFO: Connecting to 192.168.56.103:2181, use_ssl: False
2020-03-27 16:59:52,566 INFO: Zookeeper connection established, state: CONNECTED
2020-03-27 16:59:52,582 INFO: No PostgreSQL configuration items changed, nothing to reload.
2020-03-27 16:59:52,936 INFO: Lock owner: None; I am pg01
2020-03-27 16:59:53,010 INFO: trying to bootstrap a new cluster
pg_ctl: cannot be run as root
Please log in (using, e.g., "su") as the (unprivileged) user that will
own the server process.
2020-03-27 16:59:53,038 INFO: removing initialize key after failed attempt to bootstrap the cluster
2020-03-27 16:59:53,369 INFO: Lock owner: None; I am pg01