gnocchi/metricd.log ToozConnectionError: Error 111 connecting to controller:637

admin

The above exception was the direct cause of the following exception:
% O+ F5 M0 N! G2 ?+ x; _2 nTraceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/tenacity/__init__.py", line 412, in call
    result = fn(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/gnocchi/cli/metricd.py", line 45, in get_coordinator_and_start
4 W/ d9 ~* L  v    coord.start(start_heart=True)
  File "/usr/lib/python3.6/site-packages/tooz/coordination.py", line 689, in start
    super(CoordinationDriverWithExecutor, self).start(start_heart)
  File "/usr/lib/python3.6/site-packages/tooz/coordination.py", line 426, in start
    self._start()
  File "/usr/lib/python3.6/site-packages/tooz/drivers/redis.py", line 65, in wrapper
8 r/ }8 N. b: H7 Q% T0 b    cause=e)
1 n& w, Q( i6 Y% G5 U' l( X  File "/usr/lib/python3.6/site-packages/tooz/utils.py", line 224, in raise_with_cause
/ \! H' v3 r- P    excutils.raise_with_cause(exc_cls, message, *args, **kwargs)
/ K' D3 x3 G6 y( C  K- C" {/ ?  File "/usr/lib/python3.6/site-packages/oslo_utils/excutils.py", line 142, in raise_with_cause
    raise exc_cls(message, *args, **kwargs) from kwargs.get('cause')
tooz.coordination.ToozConnectionError: Error 111 connecting to controller:6379. Connection refused.
2022-05-28 22:42:17,458 [71505] ERROR    gnocchi.utils: Unable to initialize coordination driver
- M( B! T( W( F7 z2 ?7 _& {, {Traceback (most recent call last):
  P* P9 Q. V7 }( |; s5 p) n  File "/usr/lib/python3.6/site-packages/redis/connection.py", line 559, in connect
    sock = self._connect()
  File "/usr/lib/python3.6/site-packages/redis/connection.py", line 615, in _connect
0 o2 @5 I& S- x& O7 ]7 u( |    raise err
  File "/usr/lib/python3.6/site-packages/redis/connection.py", line 603, in _connect
    sock.connect(socket_address)
ConnectionRefusedError: [Errno 111] Connection refused
9 k* g; k# l% c/ R5 YDuring handling of the above exception, another exception occurred:
) j; v: K2 ~$ _- C- b, V. Y+ zTraceback (most recent call last):
& H" F- {- }& Z) U, a7 U: i) F9 ^  File "/usr/lib/python3.6/site-packages/tooz/drivers/redis.py", line 58, in wrapper
    return func(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/tooz/drivers/redis.py", line 476, in _start
( [' f: |' q+ Z    self._server_info = self._client.info()
  File "/usr/lib/python3.6/site-packages/redis/client.py", line 1304, in info
. O8 y- o' W( c8 Z    return self.execute_command('INFO')
& j0 v& t& E7 J) h7 S  File "/usr/lib/python3.6/site-packages/redis/client.py", line 898, in execute_command
    conn = self.connection or pool.get_connection(command_name, **options)
8 n8 w9 I1 `( Z* I2 u  File "/usr/lib/python3.6/site-packages/redis/connection.py", line 1192, in get_connection
( v! s+ L: t2 X- L! w5 F' a    connection.connect()
4 x1 B/ R1 B. ^. r  File "/usr/lib/python3.6/site-packages/redis/connection.py", line 563, in connect
    raise ConnectionError(self._error_message(e))
redis.exceptions.ConnectionError: Error 111 connecting to controller:6379. Connection refused.
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
. h  Z' k7 C, H' k( A# ~  File "/usr/lib/python3.6/site-packages/tenacity/__init__.py", line 412, in call
    result = fn(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/gnocchi/cli/metricd.py", line 45, in get_coordinator_and_start
    coord.start(start_heart=True)
  File "/usr/lib/python3.6/site-packages/tooz/coordination.py", line 689, in start
    super(CoordinationDriverWithExecutor, self).start(start_heart)
3 z$ e) |( r" ^7 E" M. Q3 ~  File "/usr/lib/python3.6/site-packages/tooz/coordination.py", line 426, in start
    self._start()
& V: P# P! A; D  File "/usr/lib/python3.6/site-packages/tooz/drivers/redis.py", line 65, in wrapper
    cause=e)
  g3 J$ T9 e' x$ X3 a6 I/ r: r. B  File "/usr/lib/python3.6/site-packages/tooz/utils.py", line 224, in raise_with_cause
4 g7 u* u3 z- i6 x    excutils.raise_with_cause(exc_cls, message, *args, **kwargs)
  L* q# Z3 D% b1 [# F$ h) r  File "/usr/lib/python3.6/site-packages/oslo_utils/excutils.py", line 142, in raise_with_cause
    raise exc_cls(message, *args, **kwargs) from kwargs.get('cause')
6 G$ ~/ |8 ]' g$ ^! ttooz.coordination.ToozConnectionError: Error 111 connecting to controller:6379. Connection refused.

, [0 _! I7 n# K4 M# [
解决办法：
检查redis服务。
$ f, X0 b  P/ O# l  Zredis可以正常连接，就能解决问题。