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Merge pull request #2520 from matrix-org/rav/process_incoming_rooms_in_parallel

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fed server: process PDUs for different rooms in parallel
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Richard van der Hoff 2017-10-10 10:26:21 +01:00 committed by GitHub
commit 79bea15830
1 changed files with 34 additions and 19 deletions
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53
synapse/federation/federation_server.py
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@ -12,14 +12,12 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from twisted.internet import defer
from .federation_base import FederationBase
from .units import Transaction, Edu
from synapse.util.async import Linearizer
from synapse.util import async
from synapse.util.logutils import log_function
from synapse.util.caches.response_cache import ResponseCache
from synapse.events import FrozenEvent
@ -33,6 +31,9 @@ from synapse.crypto.event_signing import compute_event_signature
import simplejson as json
import logging
# when processing incoming transactions, we try to handle multiple rooms in
# parallel, up to this limit.
TRANSACTION_CONCURRENCY_LIMIT = 10
logger = logging.getLogger(__name__)
@ -52,8 +53,8 @@ class FederationServer(FederationBase):
self.auth = hs.get_auth()
self._server_linearizer = Linearizer("fed_server")
self._transaction_linearizer = Linearizer("fed_txn_handler")
self._server_linearizer = async.Linearizer("fed_server")
self._transaction_linearizer = async.Linearizer("fed_txn_handler")
# We cache responses to state queries, as they take a while and often
# come in waves.
@ -159,7 +160,7 @@ class FederationServer(FederationBase):
received_pdus_counter.inc_by(len(transaction.pdus))
pdu_list = []
pdus_by_room = {}
for p in transaction.pdus:
if "unsigned" in p:
@ -171,22 +172,36 @@ class FederationServer(FederationBase):
del p["age"]
event = self.event_from_pdu_json(p)
pdu_list.append(event)
room_id = event.room_id
pdus_by_room.setdefault(room_id, []).append(event)
pdu_results = {}
for pdu in pdu_list:
event_id = pdu.event_id
try:
yield self._handle_received_pdu(transaction.origin, pdu)
pdu_results[event_id] = {}
except FederationError as e:
logger.warn("Error handling PDU %s: %s", event_id, e)
self.send_failure(e, transaction.origin)
pdu_results[event_id] = {"error": str(e)}
except Exception as e:
pdu_results[event_id] = {"error": str(e)}
logger.exception("Failed to handle PDU")
# we can process different rooms in parallel (which is useful if they
# require callouts to other servers to fetch missing events), but
# impose a limit to avoid going too crazy with ram/cpu.
@defer.inlineCallbacks
def process_pdus_for_room(room_id):
logger.debug("Processing PDUs for %s", room_id)
for pdu in pdus_by_room[room_id]:
event_id = pdu.event_id
try:
yield self._handle_received_pdu(
transaction.origin, pdu
)
pdu_results[event_id] = {}
except FederationError as e:
logger.warn("Error handling PDU %s: %s", event_id, e)
self.send_failure(e, transaction.origin)
pdu_results[event_id] = {"error": str(e)}
except Exception as e:
pdu_results[event_id] = {"error": str(e)}
logger.exception("Failed to handle PDU %s", event_id)
yield async.concurrently_execute(
process_pdus_for_room, pdus_by_room.keys(),
TRANSACTION_CONCURRENCY_LIMIT,
)
if hasattr(transaction, "edus"):
for edu in (Edu(**x) for x in transaction.edus):