Matrix-Mirrors/anonymousland-synapse
1
0
Fork 0
mirror of https://git.anonymousland.org/anonymousland/synapse.git synced 2025-05-02 08:26:01 -04:00
Code Issues Projects Releases Packages Wiki Activity

Refactor request sending to have better excpetions (#4358)

Browse source 
* Correctly retry and back off if we get a HTTPerror response

* Refactor request sending to have better excpetions

MatrixFederationHttpClient blindly reraised exceptions to the caller
without differentiating "expected" failures (e.g. connection timeouts
etc) versus more severe problems (e.g. programming errors).

This commit adds a RequestSendFailed exception that is raised when
"expected" failures happen, allowing the TransactionQueue to log them as
warnings while allowing us to log other exceptions as actual exceptions.
This commit is contained in:
Erik Johnston 2019-01-08 11:04:28 +00:00 • committed by Richard van der Hoff
parent 1dcb086f33
commit b970cb0e96
6 changed files with 119 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

18
synapse/api/errors.py
View file

@ -348,6 +348,24 @@ class IncompatibleRoomVersionError(SynapseError):
)
class RequestSendFailed(RuntimeError):
"""Sending a HTTP request over federation failed due to not being able to
talk to the remote server for some reason.
This exception is used to differentiate "expected" errors that arise due to
networking (e.g. DNS failures, connection timeouts etc), versus unexpected
errors (like programming errors).
"""
def __init__(self, inner_exception, can_retry):
super(RequestSendFailed, self).__init__(
"Failed to send request: %s: %s" % (
type(inner_exception).__name__, inner_exception,
)
)
self.inner_exception = inner_exception
self.can_retry = can_retry
def cs_error(msg, code=Codes.UNKNOWN, **kwargs):
""" Utility method for constructing an error response for client-server
interactions.