From ca8abfbf306ac1ecfe6927e99f0ce1f9eb5c9971 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Wed, 10 Aug 2016 14:21:10 +0100 Subject: [PATCH] Clean up TransactionQueue --- synapse/federation/transaction_queue.py | 381 ++++++++++-------------- synapse/http/matrixfederationclient.py | 4 +- synapse/util/logcontext.py | 1 - synapse/util/metrics.py | 3 +- 4 files changed, 165 insertions(+), 224 deletions(-) diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py index bbeec61f7a..e3212b482a 100644 --- a/synapse/federation/transaction_queue.py +++ b/synapse/federation/transaction_queue.py @@ -21,8 +21,7 @@ from .units import Transaction from synapse.api.errors import HttpResponseException from synapse.util.async import run_on_reactor -from synapse.util.logutils import log_function -from synapse.util.logcontext import PreserveLoggingContext +from synapse.util.logcontext import preserve_context_over_fn from synapse.util.retryutils import ( get_retry_limiter, NotRetryingDestination, ) @@ -120,267 +119,213 @@ class TransactionQueue(object): if not destinations: return - deferreds = [] - for destination in destinations: - deferred = defer.Deferred() self.pending_pdus_by_dest.setdefault(destination, []).append( - (pdu, deferred, order) + (pdu, order) ) - def chain(failure): - if not deferred.called: - deferred.errback(failure) + preserve_context_over_fn( + self._attempt_new_transaction, destination + ) - def log_failure(f): - logger.warn("Failed to send pdu to %s: %s", destination, f.value) - - deferred.addErrback(log_failure) - - with PreserveLoggingContext(): - self._attempt_new_transaction(destination).addErrback(chain) - - deferreds.append(deferred) - - # NO inlineCallbacks def enqueue_edu(self, edu): destination = edu.destination if not self.can_send_to(destination): return - deferred = defer.Deferred() - self.pending_edus_by_dest.setdefault(destination, []).append( - (edu, deferred) + self.pending_edus_by_dest.setdefault(destination, []).append(edu) + + preserve_context_over_fn( + self._attempt_new_transaction, destination ) - def chain(failure): - if not deferred.called: - deferred.errback(failure) - - def log_failure(f): - logger.warn("Failed to send edu to %s: %s", destination, f.value) - - deferred.addErrback(log_failure) - - with PreserveLoggingContext(): - self._attempt_new_transaction(destination).addErrback(chain) - - return deferred - - @defer.inlineCallbacks def enqueue_failure(self, failure, destination): if destination == self.server_name or destination == "localhost": return - deferred = defer.Deferred() - if not self.can_send_to(destination): return self.pending_failures_by_dest.setdefault( destination, [] - ).append( - (failure, deferred) + ).append(failure) + + preserve_context_over_fn( + self._attempt_new_transaction, destination ) - def chain(f): - if not deferred.called: - deferred.errback(f) - - def log_failure(f): - logger.warn("Failed to send failure to %s: %s", destination, f.value) - - deferred.addErrback(log_failure) - - with PreserveLoggingContext(): - self._attempt_new_transaction(destination).addErrback(chain) - - yield deferred - - @measure_func("attempt_new_transaction") @defer.inlineCallbacks - @log_function def _attempt_new_transaction(self, destination): yield run_on_reactor() + while True: + # list of (pending_pdu, deferred, order) + if destination in self.pending_transactions: + # XXX: pending_transactions can get stuck on by a never-ending + # request at which point pending_pdus_by_dest just keeps growing. + # we need application-layer timeouts of some flavour of these + # requests + logger.debug( + "TX [%s] Transaction already in progress", + destination + ) + return - # list of (pending_pdu, deferred, order) - if destination in self.pending_transactions: - # XXX: pending_transactions can get stuck on by a never-ending - # request at which point pending_pdus_by_dest just keeps growing. - # we need application-layer timeouts of some flavour of these - # requests - logger.debug( - "TX [%s] Transaction already in progress", - destination + pending_pdus = self.pending_pdus_by_dest.pop(destination, []) + pending_edus = self.pending_edus_by_dest.pop(destination, []) + pending_failures = self.pending_failures_by_dest.pop(destination, []) + + if pending_pdus: + logger.debug("TX [%s] len(pending_pdus_by_dest[dest]) = %d", + destination, len(pending_pdus)) + + if not pending_pdus and not pending_edus and not pending_failures: + logger.debug("TX [%s] Nothing to send", destination) + return + + yield self._send_new_transaction( + destination, pending_pdus, pending_edus, pending_failures ) - return - pending_pdus = self.pending_pdus_by_dest.pop(destination, []) - pending_edus = self.pending_edus_by_dest.pop(destination, []) - pending_failures = self.pending_failures_by_dest.pop(destination, []) - - if pending_pdus: - logger.debug("TX [%s] len(pending_pdus_by_dest[dest]) = %d", - destination, len(pending_pdus)) - - if not pending_pdus and not pending_edus and not pending_failures: - logger.debug("TX [%s] Nothing to send", destination) - return - - try: - self.pending_transactions[destination] = 1 - - logger.debug("TX [%s] _attempt_new_transaction", destination) + @measure_func("_send_new_transaction") + @defer.inlineCallbacks + def _send_new_transaction(self, destination, pending_pdus, pending_edus, + pending_failures): # Sort based on the order field - pending_pdus.sort(key=lambda t: t[2]) - + pending_pdus.sort(key=lambda t: t[1]) pdus = [x[0] for x in pending_pdus] - edus = [x[0] for x in pending_edus] - failures = [x[0].get_dict() for x in pending_failures] - deferreds = [ - x[1] - for x in pending_pdus + pending_edus + pending_failures - ] + edus = pending_edus + failures = [x.get_dict() for x in pending_failures] - txn_id = str(self._next_txn_id) + try: + self.pending_transactions[destination] = 1 - limiter = yield get_retry_limiter( - destination, - self.clock, - self.store, - ) + logger.debug("TX [%s] _attempt_new_transaction", destination) - logger.debug( - "TX [%s] {%s} Attempting new transaction" - " (pdus: %d, edus: %d, failures: %d)", - destination, txn_id, - len(pending_pdus), - len(pending_edus), - len(pending_failures) - ) + txn_id = str(self._next_txn_id) - logger.debug("TX [%s] Persisting transaction...", destination) - - transaction = Transaction.create_new( - origin_server_ts=int(self.clock.time_msec()), - transaction_id=txn_id, - origin=self.server_name, - destination=destination, - pdus=pdus, - edus=edus, - pdu_failures=failures, - ) - - self._next_txn_id += 1 - - yield self.transaction_actions.prepare_to_send(transaction) - - logger.debug("TX [%s] Persisted transaction", destination) - logger.info( - "TX [%s] {%s} Sending transaction [%s]," - " (PDUs: %d, EDUs: %d, failures: %d)", - destination, txn_id, - transaction.transaction_id, - len(pending_pdus), - len(pending_edus), - len(pending_failures), - ) - - with limiter: - # Actually send the transaction - - # FIXME (erikj): This is a bit of a hack to make the Pdu age - # keys work - def json_data_cb(): - data = transaction.get_dict() - now = int(self.clock.time_msec()) - if "pdus" in data: - for p in data["pdus"]: - if "age_ts" in p: - unsigned = p.setdefault("unsigned", {}) - unsigned["age"] = now - int(p["age_ts"]) - del p["age_ts"] - return data - - try: - response = yield self.transport_layer.send_transaction( - transaction, json_data_cb - ) - code = 200 - - if response: - for e_id, r in response.get("pdus", {}).items(): - if "error" in r: - logger.warn( - "Transaction returned error for %s: %s", - e_id, r, - ) - except HttpResponseException as e: - code = e.code - response = e.response - - logger.info( - "TX [%s] {%s} got %d response", - destination, txn_id, code + limiter = yield get_retry_limiter( + destination, + self.clock, + self.store, ) - logger.debug("TX [%s] Sent transaction", destination) - logger.debug("TX [%s] Marking as delivered...", destination) + logger.debug( + "TX [%s] {%s} Attempting new transaction" + " (pdus: %d, edus: %d, failures: %d)", + destination, txn_id, + len(pending_pdus), + len(pending_edus), + len(pending_failures) + ) - yield self.transaction_actions.delivered( - transaction, code, response - ) + logger.debug("TX [%s] Persisting transaction...", destination) - logger.debug("TX [%s] Marked as delivered", destination) + transaction = Transaction.create_new( + origin_server_ts=int(self.clock.time_msec()), + transaction_id=txn_id, + origin=self.server_name, + destination=destination, + pdus=pdus, + edus=edus, + pdu_failures=failures, + ) - logger.debug("TX [%s] Yielding to callbacks...", destination) + self._next_txn_id += 1 - for deferred in deferreds: - if code == 200: - deferred.callback(None) - else: - deferred.errback(RuntimeError("Got status %d" % code)) + yield self.transaction_actions.prepare_to_send(transaction) - # Ensures we don't continue until all callbacks on that - # deferred have fired - try: - yield deferred - except: - pass + logger.debug("TX [%s] Persisted transaction", destination) + logger.info( + "TX [%s] {%s} Sending transaction [%s]," + " (PDUs: %d, EDUs: %d, failures: %d)", + destination, txn_id, + transaction.transaction_id, + len(pending_pdus), + len(pending_edus), + len(pending_failures), + ) - logger.debug("TX [%s] Yielded to callbacks", destination) - except NotRetryingDestination: - logger.info( - "TX [%s] not ready for retry yet - " - "dropping transaction for now", - destination, - ) - except RuntimeError as e: - # We capture this here as there as nothing actually listens - # for this finishing functions deferred. - logger.warn( - "TX [%s] Problem in _attempt_transaction: %s", - destination, - e, - ) - except Exception as e: - # We capture this here as there as nothing actually listens - # for this finishing functions deferred. - logger.warn( - "TX [%s] Problem in _attempt_transaction: %s", - destination, - e, - ) + with limiter: + # Actually send the transaction - for deferred in deferreds: - if not deferred.called: - deferred.errback(e) + # FIXME (erikj): This is a bit of a hack to make the Pdu age + # keys work + def json_data_cb(): + data = transaction.get_dict() + now = int(self.clock.time_msec()) + if "pdus" in data: + for p in data["pdus"]: + if "age_ts" in p: + unsigned = p.setdefault("unsigned", {}) + unsigned["age"] = now - int(p["age_ts"]) + del p["age_ts"] + return data - finally: - # We want to be *very* sure we delete this after we stop processing - self.pending_transactions.pop(destination, None) + try: + response = yield self.transport_layer.send_transaction( + transaction, json_data_cb + ) + code = 200 - # Check to see if there is anything else to send. - self._attempt_new_transaction(destination) + if response: + for e_id, r in response.get("pdus", {}).items(): + if "error" in r: + logger.warn( + "Transaction returned error for %s: %s", + e_id, r, + ) + except HttpResponseException as e: + code = e.code + response = e.response + + logger.info( + "TX [%s] {%s} got %d response", + destination, txn_id, code + ) + + logger.debug("TX [%s] Sent transaction", destination) + logger.debug("TX [%s] Marking as delivered...", destination) + + yield self.transaction_actions.delivered( + transaction, code, response + ) + + logger.debug("TX [%s] Marked as delivered", destination) + + if code != 200: + for p in pdus: + logger.info("Failed to send event %s to %s", p.event_id, destination) + except NotRetryingDestination: + logger.info( + "TX [%s] not ready for retry yet - " + "dropping transaction for now", + destination, + ) + except RuntimeError as e: + # We capture this here as there as nothing actually listens + # for this finishing functions deferred. + logger.warn( + "TX [%s] Problem in _attempt_transaction: %s", + destination, + e, + ) + + for p in pdus: + logger.info("Failed to send event %s to %s", p.event_id, destination) + except Exception as e: + # We capture this here as there as nothing actually listens + # for this finishing functions deferred. + logger.warn( + "TX [%s] Problem in _attempt_transaction: %s", + destination, + e, + ) + + for p in pdus: + logger.info("Failed to send event %s to %s", p.event_id, destination) + + finally: + # We want to be *very* sure we delete this after we stop processing + self.pending_transactions.pop(destination, None) diff --git a/synapse/http/matrixfederationclient.py b/synapse/http/matrixfederationclient.py index c3589534f8..f93093dd85 100644 --- a/synapse/http/matrixfederationclient.py +++ b/synapse/http/matrixfederationclient.py @@ -155,9 +155,7 @@ class MatrixFederationHttpClient(object): time_out=timeout / 1000. if timeout else 60, ) - response = yield preserve_context_over_fn( - send_request, - ) + response = yield preserve_context_over_fn(send_request) log_result = "%d %s" % (response.code, response.phrase,) break diff --git a/synapse/util/logcontext.py b/synapse/util/logcontext.py index 5316259d15..7a87045f87 100644 --- a/synapse/util/logcontext.py +++ b/synapse/util/logcontext.py @@ -317,7 +317,6 @@ def preserve_fn(f): def g(*args, **kwargs): with PreserveLoggingContext(current): return f(*args, **kwargs) - return g diff --git a/synapse/util/metrics.py b/synapse/util/metrics.py index 4d7fee8868..76f301f549 100644 --- a/synapse/util/metrics.py +++ b/synapse/util/metrics.py @@ -78,7 +78,6 @@ class Measure(object): self.start = self.clock.time_msec() self.start_context = LoggingContext.current_context() if not self.start_context: - logger.warn("Entered Measure without log context: %s", self.name) self.start_context = LoggingContext("Measure") self.start_context.__enter__() self.created_context = True @@ -99,7 +98,7 @@ class Measure(object): if context != self.start_context: logger.warn( "Context has unexpectedly changed from '%s' to '%s'. (%r)", - context, self.start_context, self.name + self.start_context, context, self.name ) return