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Redis Python client
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redis Connection refused. #1466

Closed lantongxue closed 3 years ago

lantongxue commented 3 years ago

Version: redis-py: 3.5.3. redis: 5.0.7 Platform: Ubuntu 20.04 Description: I set the redis server is 10.0.0.16

__redis = redis.Redis(host='10.0.0.16', 6379)

but it's connect error, the error message 

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/dist-packages/flask/app.py", line 2446, in wsgi_app
    ctx.push()
  File "/usr/local/lib/python3.8/dist-packages/flask/ctx.py", line 390, in push
    self.session = session_interface.open_session(self.app, self.request)
  File "/usr/local/lib/python3.8/dist-packages/flask_session/sessions.py", line 132, in open_session
    val = self.redis.get(self.key_prefix + sid)
  File "/usr/local/lib/python3.8/dist-packages/redis/client.py", line 1606, in get
    return self.execute_command('GET', name)
  File "/usr/local/lib/python3.8/dist-packages/redis/client.py", line 898, in execute_command
    conn = self.connection or pool.get_connection(command_name, **options)
  File "/usr/local/lib/python3.8/dist-packages/redis/connection.py", line 1192, in get_connection
    connection.connect()
  File "/usr/local/lib/python3.8/dist-packages/redis/connection.py", line 563, in connect
    raise ConnectionError(self._error_message(e))
redis.exceptions.ConnectionError: Error 111 connecting to localhost:6379. Connection refused.

I dont know why it's localhost:6379 ??

lantongxue commented 3 years ago

if i set /etc/hosts localhost to 10.0.0.16 it's normal, no any errors.

LeopoldACC commented 3 years ago

hello,I just installed redis in python, but when I use the redis to fetch my data in localhost as 127.0.0.1,show connection refused error as you,can you help me?Thanks!

Traceback (most recent call last):
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 559, in connect
    sock = self._connect()
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 615, in _connect
    raise err
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 603, in _connect
    sock.connect(socket_address)
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/gz/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/__main__.py", line 45, in <module>
    cli.main()
  File "/home/gz/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 444, in main
    run()
  File "/home/gz/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 285, in run_file
    runpy.run_path(target_as_str, run_name=compat.force_str("__main__"))
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 265, in run_path
    return _run_module_code(code, init_globals, run_name,
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 97, in _run_module_code
    _run_code(code, mod_globals, init_globals,
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/pcdseg.py", line 242, in <module>
    evaluate(args)
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/pcdseg.py", line 229, in evaluate
    acc, miou = test_kitti_semseg(model.eval(), testdataloader,args.model_name,num_classes,class_names)
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/pcdseg.py", line 64, in test_kitti_semseg
    for points, target in tqdm(loader, total=len(loader), smoothing=0.9, dynamic_ncols=True):
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/tqdm/std.py", line 1166, in __iter__
    for obj in iterable:
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 435, in __next__
    data = self._next_data()
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 475, in _next_data
    data = self._dataset_fetcher.fetch(index)  # may raise StopIteration
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 44, in fetch
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 44, in <listcomp>
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/data_utils/SemKITTI_Loader.py", line 92, in __getitem__
    point_cloud, label = self.get_data(self.keys[index])
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/data_utils/SemKITTI_Loader.py", line 77, in get_data
    if not self.np_redis.exists(key):
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/data_utils/redis_utils.py", line 49, in exists
    return bool(self.handle.execute_command('EXISTS ' + key))
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/client.py", line 898, in execute_command
    conn = self.connection or pool.get_connection(command_name, **options)
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 1192, in get_connection
    connection.connect()
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 563, in connect
    raise ConnectionError(self._error_message(e))
redis.exceptions.ConnectionError: Error 111 connecting to 127.0.0.1:6379. Connection refused.
ramy-sharif commented 3 years ago

hello,I just installed redis in python, but when I use the redis to fetch my data in localhost as 127.0.0.1,show connection refused error as you,can you help me?Thanks!

Traceback (most recent call last):
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 559, in connect
    sock = self._connect()
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 615, in _connect
    raise err
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 603, in _connect
    sock.connect(socket_address)
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/gz/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/__main__.py", line 45, in <module>
    cli.main()
  File "/home/gz/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 444, in main
    run()
  File "/home/gz/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 285, in run_file
    runpy.run_path(target_as_str, run_name=compat.force_str("__main__"))
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 265, in run_path
    return _run_module_code(code, init_globals, run_name,
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 97, in _run_module_code
    _run_code(code, mod_globals, init_globals,
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/pcdseg.py", line 242, in <module>
    evaluate(args)
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/pcdseg.py", line 229, in evaluate
    acc, miou = test_kitti_semseg(model.eval(), testdataloader,args.model_name,num_classes,class_names)
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/pcdseg.py", line 64, in test_kitti_semseg
    for points, target in tqdm(loader, total=len(loader), smoothing=0.9, dynamic_ncols=True):
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/tqdm/std.py", line 1166, in __iter__
    for obj in iterable:
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 435, in __next__
    data = self._next_data()
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 475, in _next_data
    data = self._dataset_fetcher.fetch(index)  # may raise StopIteration
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 44, in fetch
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 44, in <listcomp>
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/data_utils/SemKITTI_Loader.py", line 92, in __getitem__
    point_cloud, label = self.get_data(self.keys[index])
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/data_utils/SemKITTI_Loader.py", line 77, in get_data
    if not self.np_redis.exists(key):
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/data_utils/redis_utils.py", line 49, in exists
    return bool(self.handle.execute_command('EXISTS ' + key))
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/client.py", line 898, in execute_command
    conn = self.connection or pool.get_connection(command_name, **options)
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 1192, in get_connection
    connection.connect()
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 563, in connect
    raise ConnectionError(self._error_message(e))
redis.exceptions.ConnectionError: Error 111 connecting to 127.0.0.1:6379. Connection refused.

Are you also running a redis-server on your machine? Checkout: https://redis.io/topics/quickstart

lantongxue commented 3 years ago

hello,I just installed redis in python, but when I use the redis to fetch my data in localhost as 127.0.0.1,show connection refused error as you,can you help me?Thanks!

Traceback (most recent call last):
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 559, in connect
    sock = self._connect()
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 615, in _connect
    raise err
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 603, in _connect
    sock.connect(socket_address)
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/gz/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/__main__.py", line 45, in <module>
    cli.main()
  File "/home/gz/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 444, in main
    run()
  File "/home/gz/.vscode/extensions/ms-python.python-2021.3.680753044/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 285, in run_file
    runpy.run_path(target_as_str, run_name=compat.force_str("__main__"))
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 265, in run_path
    return _run_module_code(code, init_globals, run_name,
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 97, in _run_module_code
    _run_code(code, mod_globals, init_globals,
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/pcdseg.py", line 242, in <module>
    evaluate(args)
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/pcdseg.py", line 229, in evaluate
    acc, miou = test_kitti_semseg(model.eval(), testdataloader,args.model_name,num_classes,class_names)
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/pcdseg.py", line 64, in test_kitti_semseg
    for points, target in tqdm(loader, total=len(loader), smoothing=0.9, dynamic_ncols=True):
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/tqdm/std.py", line 1166, in __iter__
    for obj in iterable:
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 435, in __next__
    data = self._next_data()
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 475, in _next_data
    data = self._dataset_fetcher.fetch(index)  # may raise StopIteration
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 44, in fetch
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 44, in <listcomp>
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/data_utils/SemKITTI_Loader.py", line 92, in __getitem__
    point_cloud, label = self.get_data(self.keys[index])
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/data_utils/SemKITTI_Loader.py", line 77, in get_data
    if not self.np_redis.exists(key):
  File "/home/gz/桌面/3DCVcode/segmentation/PointNet12KiTTI/data_utils/redis_utils.py", line 49, in exists
    return bool(self.handle.execute_command('EXISTS ' + key))
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/client.py", line 898, in execute_command
    conn = self.connection or pool.get_connection(command_name, **options)
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 1192, in get_connection
    connection.connect()
  File "/home/gz/anaconda3/envs/pc/lib/python3.8/site-packages/redis/connection.py", line 563, in connect
    raise ConnectionError(self._error_message(e))
redis.exceptions.ConnectionError: Error 111 connecting to 127.0.0.1:6379. Connection refused.

sorry i cant help you .

chayim commented 3 years ago

@lantongxue What version of python were you using? Using your example, I would expect to receive a syntax error as you're passing in a positional keyword second. 

>>> redis.Redis(host='10.0.0.1', 6379)
  File "<stdin>", line 1
    redis.Redis(host='10.0.0.1', 6379)
                                     ^
SyntaxError: positional argument follows keyword argument

With python 3.6, 3.7, 3.8, and 3.9 using the code above, (and disabling my redis-server) I properly receive:

redis.exceptions.ConnectionError: Error 111 connecting to 10.0.0.1:6379. Connection refused.

This sounds environmental.

ihrishikesh0896 commented 1 month ago

initiate the redis server by redis-server