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Improve tracing for to device messages (#9686)

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Erik Johnston 2021-04-01 17:08:21 +01:00 committed by GitHub
parent bb0fe02a52
commit 33548f37aa
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7 changed files with 102 additions and 19 deletions
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1
changelog.d/9686.misc Normal file
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@ -0,0 +1 @@
Improve Jaeger tracing for `to_device` messages.

8
synapse/federation/sender/per_destination_queue.py
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@ -29,6 +29,7 @@ from synapse.api.presence import UserPresenceState
from synapse.events import EventBase
from synapse.federation.units import Edu
from synapse.handlers.presence import format_user_presence_state
from synapse.logging.opentracing import SynapseTags, set_tag
from synapse.metrics import sent_transactions_counter
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.types import ReadReceipt
@ -557,6 +558,13 @@ class PerDestinationQueue:
contents, stream_id = await self._store.get_new_device_msgs_for_remote(
self._destination, last_device_stream_id, to_device_stream_id, limit
)
for content in contents:
message_id = content.get("message_id")
if not message_id:
continue
set_tag(SynapseTags.TO_DEVICE_MESSAGE_ID, message_id)
edus = [
Edu(
origin=self._server_name,

35
synapse/handlers/devicemessage.py
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@ -21,10 +21,10 @@ from synapse.api.errors import SynapseError
from synapse.api.ratelimiting import Ratelimiter
from synapse.logging.context import run_in_background
from synapse.logging.opentracing import (
SynapseTags,
get_active_span_text_map,
log_kv,
set_tag,
start_active_span,
)
from synapse.replication.http.devices import ReplicationUserDevicesResyncRestServlet
from synapse.types import JsonDict, Requester, UserID, get_domain_from_id
@ -183,7 +183,10 @@ class DeviceMessageHandler:
) -> None:
sender_user_id = requester.user.to_string()
set_tag("number_of_messages", len(messages))
message_id = random_string(16)
set_tag(SynapseTags.TO_DEVICE_MESSAGE_ID, message_id)
log_kv({"number_of_to_device_messages": len(messages)})
set_tag("sender", sender_user_id)
local_messages = {}
remote_messages = {} # type: Dict[str, Dict[str, Dict[str, JsonDict]]]
@ -205,32 +208,35 @@ class DeviceMessageHandler:
"content": message_content,
"type": message_type,
"sender": sender_user_id,
"message_id": message_id,
}
for device_id, message_content in by_device.items()
}
if messages_by_device:
local_messages[user_id] = messages_by_device
log_kv(
{
"user_id": user_id,
"device_id": list(messages_by_device),
}
)
else:
destination = get_domain_from_id(user_id)
remote_messages.setdefault(destination, {})[user_id] = by_device
message_id = random_string(16)
context = get_active_span_text_map()
remote_edu_contents = {}
for destination, messages in remote_messages.items():
with start_active_span("to_device_for_user"):
set_tag("destination", destination)
remote_edu_contents[destination] = {
"messages": messages,
"sender": sender_user_id,
"type": message_type,
"message_id": message_id,
"org.matrix.opentracing_context": json_encoder.encode(context),
}
log_kv({"destination": destination})
remote_edu_contents[destination] = {
"messages": messages,
"sender": sender_user_id,
"type": message_type,
"message_id": message_id,
"org.matrix.opentracing_context": json_encoder.encode(context),
}
log_kv({"local_messages": local_messages})
stream_id = await self.store.add_messages_to_device_inbox(
local_messages, remote_edu_contents
)
@ -239,7 +245,6 @@ class DeviceMessageHandler:
"to_device_key", stream_id, users=local_messages.keys()
)
log_kv({"remote_messages": remote_messages})
if self.federation_sender:
for destination in remote_messages.keys():
# Enqueue a new federation transaction to send the new

18
synapse/handlers/sync.py
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@ -24,6 +24,7 @@ from synapse.api.constants import AccountDataTypes, EventTypes, Membership
from synapse.api.filtering import FilterCollection
from synapse.events import EventBase
from synapse.logging.context import current_context
from synapse.logging.opentracing import SynapseTags, log_kv, set_tag, start_active_span
from synapse.push.clientformat import format_push_rules_for_user
from synapse.storage.roommember import MemberSummary
from synapse.storage.state import StateFilter
@ -340,7 +341,14 @@ class SyncHandler:
full_state: bool = False,
) -> SyncResult:
"""Get the sync for client needed to match what the server has now."""
return await self.generate_sync_result(sync_config, since_token, full_state)
with start_active_span("current_sync_for_user"):
log_kv({"since_token": since_token})
sync_result = await self.generate_sync_result(
sync_config, since_token, full_state
)
set_tag(SynapseTags.SYNC_RESULT, bool(sync_result))
return sync_result
async def push_rules_for_user(self, user: UserID) -> JsonDict:
user_id = user.to_string()
@ -964,6 +972,7 @@ class SyncHandler:
# to query up to a given point.
# Always use the `now_token` in `SyncResultBuilder`
now_token = self.event_sources.get_current_token()
log_kv({"now_token": now_token})
logger.debug(
"Calculating sync response for %r between %s and %s",
@ -1225,6 +1234,13 @@ class SyncHandler:
user_id, device_id, since_stream_id, now_token.to_device_key
)
for message in messages:
# We pop here as we shouldn't be sending the message ID down
# `/sync`
message_id = message.pop("message_id", None)
if message_id:
set_tag(SynapseTags.TO_DEVICE_MESSAGE_ID, message_id)
logger.debug(
"Returning %d to-device messages between %d and %d (current token: %d)",
len(messages),

6
synapse/handlers/typing.py
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@ -19,7 +19,10 @@ from typing import TYPE_CHECKING, Dict, Iterable, List, Optional, Set, Tuple
from synapse.api.errors import AuthError, ShadowBanError, SynapseError
from synapse.appservice import ApplicationService
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.metrics.background_process_metrics import (
run_as_background_process,
wrap_as_background_process,
)
from synapse.replication.tcp.streams import TypingStream
from synapse.types import JsonDict, Requester, UserID, get_domain_from_id
from synapse.util.caches.stream_change_cache import StreamChangeCache
@ -86,6 +89,7 @@ class FollowerTypingHandler:
self._member_last_federation_poke = {}
self.wheel_timer = WheelTimer(bucket_size=5000)
@wrap_as_background_process("typing._handle_timeouts")
def _handle_timeouts(self) -> None:
logger.debug("Checking for typing timeouts")

8
synapse/logging/opentracing.py
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@ -259,6 +259,14 @@ except ImportError:
logger = logging.getLogger(__name__)
class SynapseTags:
# The message ID of any to_device message processed
TO_DEVICE_MESSAGE_ID = "to_device.message_id"
# Whether the sync response has new data to be returned to the client.
SYNC_RESULT = "sync.new_data"
# Block everything by default
# A regex which matches the server_names to expose traces for.
# None means 'block everything'.

45
synapse/notifier.py
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@ -39,6 +39,7 @@ from synapse.api.errors import AuthError
from synapse.events import EventBase
from synapse.handlers.presence import format_user_presence_state
from synapse.logging.context import PreserveLoggingContext
from synapse.logging.opentracing import log_kv, start_active_span
from synapse.logging.utils import log_function
from synapse.metrics import LaterGauge
from synapse.streams.config import PaginationConfig
@ -136,6 +137,15 @@ class _NotifierUserStream:
self.last_notified_ms = time_now_ms
noify_deferred = self.notify_deferred
log_kv(
{
"notify": self.user_id,
"stream": stream_key,
"stream_id": stream_id,
"listeners": self.count_listeners(),
}
)
users_woken_by_stream_counter.labels(stream_key).inc()
with PreserveLoggingContext():
@ -404,6 +414,13 @@ class Notifier:
with Measure(self.clock, "on_new_event"):
user_streams = set()
log_kv(
{
"waking_up_explicit_users": len(users),
"waking_up_explicit_rooms": len(rooms),
}
)
for user in users:
user_stream = self.user_to_user_stream.get(str(user))
if user_stream is not None:
@ -476,12 +493,34 @@ class Notifier:
(end_time - now) / 1000.0,
self.hs.get_reactor(),
)
with PreserveLoggingContext():
await listener.deferred
with start_active_span("wait_for_events.deferred"):
log_kv(
{
"wait_for_events": "sleep",
"token": prev_token,
}
)
with PreserveLoggingContext():
await listener.deferred
log_kv(
{
"wait_for_events": "woken",
"token": user_stream.current_token,
}
)
current_token = user_stream.current_token
result = await callback(prev_token, current_token)
log_kv(
{
"wait_for_events": "result",
"result": bool(result),
}
)
if result:
break
@ -489,8 +528,10 @@ class Notifier:
# has happened between the old prev_token and the current_token
prev_token = current_token
except defer.TimeoutError:
log_kv({"wait_for_events": "timeout"})
break
except defer.CancelledError:
log_kv({"wait_for_events": "cancelled"})
break
if result is None: