What happened (please include outputs or screenshots):
I want to list config map in a namespace, but I get an error like:
connectionpool.py:661|connectionpool.urlopen|Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProtocolError('Connection broken: IncompleteRead(168520010 bytes read)', IncompleteRead(168520010 bytes read))': /api/v1/namespaces/kube-haproxy/configmaps
here is my code:

def get_latest_haproxy_cm(kconfig, ns):
    try:
        config.load_kube_config(kconfig)
        cm_list = client.CoreV1Api().list_namespaced_config_map(ns)
        logging.info(cm_list)
    except client.rest.ApiException:
        return 1, False, False
    except:
        logging.error("failed to fetch haproxy configmap in ns [%s]", ns)
        sys.exit(-1)

    return cm_list

waiting for a long time, I get an error like:

Connection broken: IncompleteRead(168520010 bytes read)', IncompleteRead(168520010 bytes read))'

and the number of configmap in the namespace is 409.
What you expected to happen:
list configmap in namespace success.
How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?:
the number of configmap in the namespace is 409.
Environment:

• Kubernetes version (kubectl version): v1.16.3
• OS (e.g., MacOS 10.13.6): MacOS 10.13.6
• Python version (python --version): Python 3.8.1
• Python client version (pip list | grep kubernetes)11.0.0