Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Retry to send request after receiving connection reset by peer. #175

Closed
wants to merge 1 commit into from
Closed

Retry to send request after receiving connection reset by peer. #175

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
51 changes: 30 additions & 21 deletions winrm/transport.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,7 @@
import ssl

class Transport(object):

def __init__(
self, endpoint, username=None, password=None, realm=None,
service=None, keytab=None, ca_trust_path=None, cert_pem=None,
Expand Down Expand Up @@ -174,7 +174,7 @@ def build_session(self):

return session

def send_message(self, message):
def send_message(self, message, retry_count=1):
# TODO support kerberos/ntlm session with message encryption

if not self.session:
Expand All @@ -188,23 +188,32 @@ def send_message(self, message):
request = requests.Request('POST', self.endpoint, data=message)
prepared_request = self.session.prepare_request(request)

try:
response = self.session.send(prepared_request, timeout=self.read_timeout_sec)
response_text = response.text
response.raise_for_status()
return response_text
except requests.HTTPError as ex:
if ex.response.status_code == 401:
raise InvalidCredentialsError("the specified credentials were rejected by the server")
if ex.response.content:
response_text = ex.response.content
else:
response_text = ''
# Per http://msdn.microsoft.com/en-us/library/cc251676.aspx rule 3,
# should handle this 500 error and retry receiving command output.
if b'http://schemas.microsoft.com/wbem/wsman/1/windows/shell/Receive' in message and b'Code="2150858793"' in response_text:
raise WinRMOperationTimeoutError()
# Make sure send request is executed at least once
retry_count = max(0, retry_count)

error_message = 'Bad HTTP response returned from server. Code {0}'.format(ex.response.status_code)

raise WinRMTransportError('http', error_message)
while retry_count >= 0:
try:
response = self.session.send(prepared_request, timeout=self.read_timeout_sec)
response_text = response.text
response.raise_for_status()
return response_text
except requests.HTTPError as ex:
if ex.response.status_code == 401:
raise InvalidCredentialsError("the specified credentials were rejected by the server")
if ex.response.content:
response_text = ex.response.content
else:
response_text = ''
# Per http://msdn.microsoft.com/en-us/library/cc251676.aspx rule 3,
# should handle this 500 error and retry receiving command output.
if b'http://schemas.microsoft.com/wbem/wsman/1/windows/shell/Receive' in message and b'Code="2150858793"' in response_text:
raise WinRMOperationTimeoutError()

error_message = 'Bad HTTP response returned from server. Code {0}'.format(ex.response.status_code)

raise WinRMTransportError('http', error_message)
except requests.exceptions.ConnectionError as e:
if retry_count <= 0 or 'Connection reset by peer' not in str(e):
raise
finally:
retry_count -= 1