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Reduce INFO logging (#8050)

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c.f. #8021 

A lot of the code here is to change the `Completed 200 OK` logging to include the request URI so that we can drop the `Sending request...` log line.

Some notes:

1. We won't log retries, which may be confusing considering the time taken log line includes retries and sleeps.
2. The `_send_request_with_optional_trailing_slash` will always be logged *without* the forward slash, even if it succeeded only with the forward slash.
This commit is contained in:
Erik Johnston 2020-08-11 18:10:07 +01:00 committed by GitHub
parent db131b6b22
commit a0f574f3c2
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4 changed files with 74 additions and 25 deletions
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1
changelog.d/8050.misc Normal file
View File

@ -0,0 +1 @@
Reduce amount of outbound request logging at INFO level.

2
synapse/http/client.py
View File

@ -297,7 +297,7 @@ class SimpleHttpClient(object):
outgoing_requests_counter.labels(method).inc()
# log request but strip `access_token` (AS requests for example include this)
logger.info("Sending request %s %s", method, redact_uri(uri))
logger.debug("Sending request %s %s", method, redact_uri(uri))
with start_active_span(
"outgoing-client-request",

2
synapse/http/federation/matrix_federation_agent.py
View File

@ -247,7 +247,7 @@ class MatrixHostnameEndpoint(object):
port = server.port
try:
logger.info("Connecting to %s:%i", host.decode("ascii"), port)
logger.debug("Connecting to %s:%i", host.decode("ascii"), port)
endpoint = HostnameEndpoint(self._reactor, host, port)
if self._tls_options:
endpoint = wrapClientTLS(self._tls_options, endpoint)

94
synapse/http/matrixfederationclient.py
View File

@ -29,10 +29,11 @@ from zope.interface import implementer
from twisted.internet import defer, protocol
from twisted.internet.error import DNSLookupError
from twisted.internet.interfaces import IReactorPluggableNameResolver
from twisted.internet.interfaces import IReactorPluggableNameResolver, IReactorTime
from twisted.internet.task import _EPSILON, Cooperator
from twisted.web._newclient import ResponseDone
from twisted.web.http_headers import Headers
from twisted.web.iweb import IResponse
import synapse.metrics
import synapse.util.retryutils
@ -74,7 +75,7 @@ MAXINT = sys.maxsize
_next_id = 1
@attr.s
@attr.s(frozen=True)
class MatrixFederationRequest(object):
method = attr.ib()
"""HTTP method
@ -110,26 +111,52 @@ class MatrixFederationRequest(object):
:type: str|None
"""
uri = attr.ib(init=False, type=bytes)
"""The URI of this request
"""
def __attrs_post_init__(self):
global _next_id
self.txn_id = "%s-O-%s" % (self.method, _next_id)
txn_id = "%s-O-%s" % (self.method, _next_id)
_next_id = (_next_id + 1) % (MAXINT - 1)
object.__setattr__(self, "txn_id", txn_id)
destination_bytes = self.destination.encode("ascii")
path_bytes = self.path.encode("ascii")
if self.query:
query_bytes = encode_query_args(self.query)
else:
query_bytes = b""
# The object is frozen so we can pre-compute this.
uri = urllib.parse.urlunparse(
(b"matrix", destination_bytes, path_bytes, None, query_bytes, b"")
)
object.__setattr__(self, "uri", uri)
def get_json(self):
if self.json_callback:
return self.json_callback()
return self.json
async def _handle_json_response(reactor, timeout_sec, request, response):
async def _handle_json_response(
reactor: IReactorTime,
timeout_sec: float,
request: MatrixFederationRequest,
response: IResponse,
start_ms: int,
):
"""
Reads the JSON body of a response, with a timeout
Args:
reactor (IReactor): twisted reactor, for the timeout
timeout_sec (float): number of seconds to wait for response to complete
request (MatrixFederationRequest): the request that triggered the response
response (IResponse): response to the request
reactor: twisted reactor, for the timeout
timeout_sec: number of seconds to wait for response to complete
request: the request that triggered the response
response: response to the request
start_ms: Timestamp when request was made
Returns:
dict: parsed JSON response
@ -143,23 +170,35 @@ async def _handle_json_response(reactor, timeout_sec, request, response):
body = await make_deferred_yieldable(d)
except TimeoutError as e:
logger.warning(
"{%s} [%s] Timed out reading response", request.txn_id, request.destination,
"{%s} [%s] Timed out reading response - %s %s",
request.txn_id,
request.destination,
request.method,
request.uri.decode("ascii"),
)
raise RequestSendFailed(e, can_retry=True) from e
except Exception as e:
logger.warning(
"{%s} [%s] Error reading response: %s",
"{%s} [%s] Error reading response %s %s: %s",
request.txn_id,
request.destination,
request.method,
request.uri.decode("ascii"),
e,
)
raise
time_taken_secs = reactor.seconds() - start_ms / 1000
logger.info(
"{%s} [%s] Completed: %d %s",
"{%s} [%s] Completed request: %d %s in %.2f secs - %s %s",
request.txn_id,
request.destination,
response.code,
response.phrase.decode("ascii", errors="replace"),
time_taken_secs,
request.method,
request.uri.decode("ascii"),
)
return body
@ -261,7 +300,9 @@ class MatrixFederationHttpClient(object):
# 'M_UNRECOGNIZED' which some endpoints can return when omitting a
# trailing slash on Synapse <= v0.99.3.
logger.info("Retrying request with trailing slash")
request.path += "/"
# Request is frozen so we create a new instance
request = attr.evolve(request, path=request.path + "/")
response = await self._send_request(request, **send_request_args)
@ -373,9 +414,7 @@ class MatrixFederationHttpClient(object):
else:
retries_left = MAX_SHORT_RETRIES
url_bytes = urllib.parse.urlunparse(
(b"matrix", destination_bytes, path_bytes, None, query_bytes, b"")
)
url_bytes = request.uri
url_str = url_bytes.decode("ascii")
url_to_sign_bytes = urllib.parse.urlunparse(
@ -402,7 +441,7 @@ class MatrixFederationHttpClient(object):
headers_dict[b"Authorization"] = auth_headers
logger.info(
logger.debug(
"{%s} [%s] Sending request: %s %s; timeout %fs",
request.txn_id,
request.destination,
@ -436,7 +475,6 @@ class MatrixFederationHttpClient(object):
except DNSLookupError as e:
raise RequestSendFailed(e, can_retry=retry_on_dns_fail) from e
except Exception as e:
logger.info("Failed to send request: %s", e)
raise RequestSendFailed(e, can_retry=True) from e
incoming_responses_counter.labels(
@ -496,7 +534,7 @@ class MatrixFederationHttpClient(object):
break
except RequestSendFailed as e:
logger.warning(
logger.info(
"{%s} [%s] Request failed: %s %s: %s",
request.txn_id,
request.destination,
@ -654,6 +692,8 @@ class MatrixFederationHttpClient(object):
json=data,
)
start_ms = self.clock.time_msec()
response = await self._send_request_with_optional_trailing_slash(
request,
try_trailing_slash_on_400,
@ -664,7 +704,7 @@ class MatrixFederationHttpClient(object):
)
body = await _handle_json_response(
self.reactor, self.default_timeout, request, response
self.reactor, self.default_timeout, request, response, start_ms
)
return body
@ -720,6 +760,8 @@ class MatrixFederationHttpClient(object):
method="POST", destination=destination, path=path, query=args, json=data
)
start_ms = self.clock.time_msec()
response = await self._send_request(
request,
long_retries=long_retries,
@ -733,7 +775,7 @@ class MatrixFederationHttpClient(object):
_sec_timeout = self.default_timeout
body = await _handle_json_response(
self.reactor, _sec_timeout, request, response
self.reactor, _sec_timeout, request, response, start_ms,
)
return body
@ -786,6 +828,8 @@ class MatrixFederationHttpClient(object):
method="GET", destination=destination, path=path, query=args
)
start_ms = self.clock.time_msec()
response = await self._send_request_with_optional_trailing_slash(
request,
try_trailing_slash_on_400,
@ -796,7 +840,7 @@ class MatrixFederationHttpClient(object):
)
body = await _handle_json_response(
self.reactor, self.default_timeout, request, response
self.reactor, self.default_timeout, request, response, start_ms
)
return body
@ -846,6 +890,8 @@ class MatrixFederationHttpClient(object):
method="DELETE", destination=destination, path=path, query=args
)
start_ms = self.clock.time_msec()
response = await self._send_request(
request,
long_retries=long_retries,
@ -854,7 +900,7 @@ class MatrixFederationHttpClient(object):
)
body = await _handle_json_response(
self.reactor, self.default_timeout, request, response
self.reactor, self.default_timeout, request, response, start_ms
)
return body
@ -914,12 +960,14 @@ class MatrixFederationHttpClient(object):
)
raise
logger.info(
"{%s} [%s] Completed: %d %s [%d bytes]",
"{%s} [%s] Completed: %d %s [%d bytes] %s %s",
request.txn_id,
request.destination,
response.code,
response.phrase.decode("ascii", errors="replace"),
length,
request.method,
request.uri.decode("ascii"),
)
return (length, headers)