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Fix exception reporting due to HTTP request errors. (#7556)

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These are business as usual errors, rather than stuff we want to log at
error.
This commit is contained in:
Erik Johnston 2020-05-22 11:39:20 +01:00 committed by GitHub
parent ac481a738e
commit 547e4dd83e
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4 changed files with 24 additions and 4 deletions
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1
changelog.d/7556.misc Normal file
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@ -0,0 +1 @@
Stop logging some expected HTTP request errors as exceptions.

13
synapse/app/generic_worker.py
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@ -26,7 +26,7 @@ from twisted.web.resource import NoResource
import synapse
import synapse.events
from synapse.api.errors import SynapseError
from synapse.api.errors import HttpResponseException, RequestSendFailed, SynapseError
from synapse.api.urls import (
CLIENT_API_PREFIX,
FEDERATION_PREFIX,
@ -202,9 +202,14 @@ class KeyUploadServlet(RestServlet):
# is there.
auth_headers = request.requestHeaders.getRawHeaders(b"Authorization", [])
headers = {"Authorization": auth_headers}
result = await self.http_client.post_json_get_json(
self.main_uri + request.uri.decode("ascii"), body, headers=headers
)
try:
result = await self.http_client.post_json_get_json(
self.main_uri + request.uri.decode("ascii"), body, headers=headers
)
except HttpResponseException as e:
raise e.to_synapse() from e
except RequestSendFailed as e:
raise SynapseError(502, "Failed to talk to master") from e
return 200, result
else:

7
synapse/handlers/federation.py
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@ -40,6 +40,7 @@ from synapse.api.errors import (
Codes,
FederationDeniedError,
FederationError,
HttpResponseException,
RequestSendFailed,
SynapseError,
)
@ -1036,6 +1037,12 @@ class FederationHandler(BaseHandler):
# TODO: We can probably do something more intelligent here.
return True
except SynapseError as e:
logger.info("Failed to backfill from %s because %s", dom, e)
continue
except HttpResponseException as e:
if 400 <= e.code < 500:
raise e.to_synapse_error()
logger.info("Failed to backfill from %s because %s", dom, e)
continue
except CodeMessageException as e:

7
synapse/http/matrixfederationclient.py
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@ -144,6 +144,11 @@ def _handle_json_response(reactor, timeout_sec, request, response):
d = timeout_deferred(d, timeout=timeout_sec, reactor=reactor)
body = yield make_deferred_yieldable(d)
except TimeoutError as e:
logger.warning(
"{%s} [%s] Timed out reading response", request.txn_id, request.destination,
)
raise RequestSendFailed(e, can_retry=True) from e
except Exception as e:
logger.warning(
"{%s} [%s] Error reading response: %s",
@ -424,6 +429,8 @@ class MatrixFederationHttpClient(object):
)
response = yield request_deferred
except TimeoutError as e:
raise RequestSendFailed(e, can_retry=True) from e
except DNSLookupError as e:
raise_from(RequestSendFailed(e, can_retry=retry_on_dns_fail), e)
except Exception as e: