在AWS上拥有一个K8S集群，试图在其中部署KubernetesExecutor的Airflow Webserver + Scheduler。不幸的是，每次我在Web服务器中触发DAG时，调度程序会在read_timeout时间（在airflow.cfg中定义）中引发以下错误：
[2019-11-27 11:25:26,607] {kubernetes_executor.py:440} ERROR - Error while health checking kube watcher process. Process died for unknown reasons
[2019-11-27 11:25:26,617] {kubernetes_executor.py:344} INFO - Event: and now my watch begins starting at resource_version: 0
[2019-11-27 11:26:26,700] {kubernetes_executor.py:335} ERROR - Unknown error in KubernetesJobWatcher. Failing
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/urllib3/contrib/pyopenssl.py", line 294, in recv_into
return self.connection.recv_into(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1840, in recv_into
self._raise_ssl_error(self._ssl, result)
File "/usr/local/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1646, in _raise_ssl_error
raise WantReadError()
OpenSSL.SSL.WantReadError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 360, in _error_catcher
yield
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 666, in read_chunked
self._update_chunk_length()
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 598, in _update_chunk_length
line = self._fp.fp.readline()
File "/usr/local/lib/python3.7/socket.py", line 589, in readinto
return self._sock.recv_into(b)
File "/usr/local/lib/python3.7/site-packages/urllib3/contrib/pyopenssl.py", line 307, in recv_into
raise timeout('The read operation timed out')
socket.timeout: The read operation timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/airflow/contrib/executors/kubernetes_executor.py", line 333, in run
self.worker_uuid, self.kube_config)
File "/usr/local/lib/python3.7/site-packages/airflow/contrib/executors/kubernetes_executor.py", line 357, in _run
**kwargs):
File "/usr/local/lib/python3.7/site-packages/kubernetes/watch/watch.py", line 144, in stream
for line in iter_resp_lines(resp):
File "/usr/local/lib/python3.7/site-packages/kubernetes/watch/watch.py", line 48, in iter_resp_lines
for seg in resp.read_chunked(decode_content=False):
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 694, in read_chunked
self._original_response.close()
File "/usr/local/lib/python3.7/contextlib.py", line 130, in __exit__
self.gen.throw(type, value, traceback)
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 365, in _error_catcher
raise ReadTimeoutError(self._pool, None, 'Read timed out.')
urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='100.64.0.1', port=443): Read timed out.
Process KubernetesJobWatcher-16:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/urllib3/contrib/pyopenssl.py", line 294, in recv_into
return self.connection.recv_into(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1840, in recv_into
self._raise_ssl_error(self._ssl, result)
File "/usr/local/lib/python3.7/site-packages/OpenSSL/SSL.py", line 1646, in _raise_ssl_error
raise WantReadError()
OpenSSL.SSL.WantReadError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 360, in _error_catcher
yield
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 666, in read_chunked
self._update_chunk_length()
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 598, in _update_chunk_length
line = self._fp.fp.readline()
File "/usr/local/lib/python3.7/socket.py", line 589, in readinto
return self._sock.recv_into(b)
File "/usr/local/lib/python3.7/site-packages/urllib3/contrib/pyopenssl.py", line 307, in recv_into
raise timeout('The read operation timed out')
socket.timeout: The read operation timed out
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
self.run()
File "/usr/local/lib/python3.7/site-packages/airflow/contrib/executors/kubernetes_executor.py", line 333, in run
self.worker_uuid, self.kube_config)
File "/usr/local/lib/python3.7/site-packages/airflow/contrib/executors/kubernetes_executor.py", line 357, in _run
**kwargs):
File "/usr/local/lib/python3.7/site-packages/kubernetes/watch/watch.py", line 144, in stream
for line in iter_resp_lines(resp):
File "/usr/local/lib/python3.7/site-packages/kubernetes/watch/watch.py", line 48, in iter_resp_lines
for seg in resp.read_chunked(decode_content=False):
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 694, in read_chunked
self._original_response.close()
File "/usr/local/lib/python3.7/contextlib.py", line 130, in __exit__
self.gen.throw(type, value, traceback)
File "/usr/local/lib/python3.7/site-packages/urllib3/response.py", line 365, in _error_catcher
raise ReadTimeoutError(self._pool, None, 'Read timed out.')
urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='100.64.0.1', port=443): Read timed out.
[2019-11-27 11:26:26,898] {kubernetes_executor.py:440} ERROR - Error while health checking kube watcher process. Process died for unknown reasons
[2019-11-27 11:26:26,968] {kubernetes_executor.py:344} INFO - Event: and now my watch begins starting at resource_version: 0
PostgreSQL是通过头盔图表安装的。
kubectl版本。
Client Version: version.Info{Major:"1", Minor:"16", GitVersion:"v1.16.3", GitCommit:"b3cbbae08ec52a7fc73d334838e18d17e8512749", GitTreeState:"clean", BuildDate:"2019-11-14T04:24:29Z", GoVersion:"go1.12.13", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"11", GitVersion:"v1.11.8", GitCommit:"4e209c9383fa00631d124c8adcc011d617339b3c", GitTreeState:"clean", BuildDate:"2019-02-28T18:40:05Z", GoVersion:"go1.10.8", Compiler:"gc", Platform:"linux/amd64"}
100.64.0.1是kubernetes服务（集群ip）。
有什么建议吗？