diff options
| -rw-r--r-- | synapse/federation/transaction_queue.py | 48 |
1 files changed, 32 insertions, 16 deletions
diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py index 003eaba893..7a3c9cbb70 100644 --- a/synapse/federation/transaction_queue.py +++ b/synapse/federation/transaction_queue.py @@ -20,8 +20,8 @@ from .persistence import TransactionActions from .units import Transaction, Edu from synapse.api.errors import HttpResponseException +from synapse.util import logcontext from synapse.util.async import run_on_reactor -from synapse.util.logcontext import preserve_context_over_fn, preserve_fn from synapse.util.retryutils import NotRetryingDestination, get_retry_limiter from synapse.util.metrics import measure_func from synapse.handlers.presence import format_user_presence_state, get_interested_remotes @@ -231,11 +231,9 @@ class TransactionQueue(object): (pdu, order) ) - preserve_context_over_fn( - self._attempt_new_transaction, destination - ) + self._attempt_new_transaction(destination) - @preserve_fn # the caller should not yield on this + @logcontext.preserve_fn # the caller should not yield on this @defer.inlineCallbacks def send_presence(self, states): """Send the new presence states to the appropriate destinations. @@ -299,7 +297,7 @@ class TransactionQueue(object): state.user_id: state for state in states }) - preserve_fn(self._attempt_new_transaction)(destination) + self._attempt_new_transaction(destination) def send_edu(self, destination, edu_type, content, key=None): edu = Edu( @@ -321,9 +319,7 @@ class TransactionQueue(object): else: self.pending_edus_by_dest.setdefault(destination, []).append(edu) - preserve_context_over_fn( - self._attempt_new_transaction, destination - ) + self._attempt_new_transaction(destination) def send_failure(self, failure, destination): if destination == self.server_name or destination == "localhost": @@ -336,9 +332,7 @@ class TransactionQueue(object): destination, [] ).append(failure) - preserve_context_over_fn( - self._attempt_new_transaction, destination - ) + self._attempt_new_transaction(destination) def send_device_messages(self, destination): if destination == self.server_name or destination == "localhost": @@ -347,15 +341,24 @@ class TransactionQueue(object): if not self.can_send_to(destination): return - preserve_context_over_fn( - self._attempt_new_transaction, destination - ) + self._attempt_new_transaction(destination) def get_current_token(self): return 0 - @defer.inlineCallbacks def _attempt_new_transaction(self, destination): + """Try to start a new transaction to this destination + + If there is already a transaction in progress to this destination, + returns immediately. Otherwise kicks off the process of sending a + transaction in the background. + + Args: + destination (str): + + Returns: + None + """ # list of (pending_pdu, deferred, order) if destination in self.pending_transactions: # XXX: pending_transactions can get stuck on by a never-ending @@ -368,6 +371,19 @@ class TransactionQueue(object): ) return + logger.debug("TX [%s] Starting transaction loop", destination) + + # Drop the logcontext before starting the transaction. It doesn't + # really make sense to log all the outbound transactions against + # whatever path led us to this point: that's pretty arbitrary really. + # + # (this also means we can fire off _perform_transaction without + # yielding) + with logcontext.PreserveLoggingContext(): + self._transaction_transmission_loop(destination) + + @defer.inlineCallbacks + def _transaction_transmission_loop(self, destination): pending_pdus = [] try: self.pending_transactions[destination] = 1 |