diff options
Diffstat (limited to 'synapse/http/server.py')
| -rw-r--r-- | synapse/http/server.py | 77 |
1 files changed, 58 insertions, 19 deletions
diff --git a/synapse/http/server.py b/synapse/http/server.py index 10d1fcd3f6..b17b190ee5 100644 --- a/synapse/http/server.py +++ b/synapse/http/server.py @@ -41,7 +41,7 @@ metrics = synapse.metrics.get_metrics_for(__name__) incoming_requests_counter = metrics.register_counter( "requests", - labels=["method", "servlet"], + labels=["method", "servlet", "tag"], ) outgoing_responses_counter = metrics.register_counter( "responses", @@ -50,23 +50,23 @@ outgoing_responses_counter = metrics.register_counter( response_timer = metrics.register_distribution( "response_time", - labels=["method", "servlet"] + labels=["method", "servlet", "tag"] ) response_ru_utime = metrics.register_distribution( - "response_ru_utime", labels=["method", "servlet"] + "response_ru_utime", labels=["method", "servlet", "tag"] ) response_ru_stime = metrics.register_distribution( - "response_ru_stime", labels=["method", "servlet"] + "response_ru_stime", labels=["method", "servlet", "tag"] ) response_db_txn_count = metrics.register_distribution( - "response_db_txn_count", labels=["method", "servlet"] + "response_db_txn_count", labels=["method", "servlet", "tag"] ) response_db_txn_duration = metrics.register_distribution( - "response_db_txn_duration", labels=["method", "servlet"] + "response_db_txn_duration", labels=["method", "servlet", "tag"] ) @@ -99,9 +99,8 @@ def request_handler(request_handler): request_context.request = request_id with request.processing(): try: - d = request_handler(self, request) - with PreserveLoggingContext(): - yield d + with PreserveLoggingContext(request_context): + yield request_handler(self, request) except CodeMessageException as e: code = e.code if isinstance(e, SynapseError): @@ -208,6 +207,9 @@ class JsonResource(HttpServer, resource.Resource): if request.method == "OPTIONS": self._send_response(request, 200, {}) return + + start_context = LoggingContext.current_context() + # Loop through all the registered callbacks to check if the method # and path regex match for path_entry in self.path_regexs.get(request.method, []): @@ -226,7 +228,6 @@ class JsonResource(HttpServer, resource.Resource): servlet_classname = servlet_instance.__class__.__name__ else: servlet_classname = "%r" % callback - incoming_requests_counter.inc(request.method, servlet_classname) args = [ urllib.unquote(u).decode("UTF-8") if u else u for u in m.groups() @@ -237,21 +238,40 @@ class JsonResource(HttpServer, resource.Resource): code, response = callback_return self._send_response(request, code, response) - response_timer.inc_by( - self.clock.time_msec() - start, request.method, servlet_classname - ) - try: context = LoggingContext.current_context() + + tag = "" + if context: + tag = context.tag + + if context != start_context: + logger.warn( + "Context have unexpectedly changed %r, %r", + context, self.start_context + ) + return + + incoming_requests_counter.inc(request.method, servlet_classname, tag) + + response_timer.inc_by( + self.clock.time_msec() - start, request.method, + servlet_classname, tag + ) + ru_utime, ru_stime = context.get_resource_usage() - response_ru_utime.inc_by(ru_utime, request.method, servlet_classname) - response_ru_stime.inc_by(ru_stime, request.method, servlet_classname) + response_ru_utime.inc_by( + ru_utime, request.method, servlet_classname, tag + ) + response_ru_stime.inc_by( + ru_stime, request.method, servlet_classname, tag + ) response_db_txn_count.inc_by( - context.db_txn_count, request.method, servlet_classname + context.db_txn_count, request.method, servlet_classname, tag ) response_db_txn_duration.inc_by( - context.db_txn_duration, request.method, servlet_classname + context.db_txn_duration, request.method, servlet_classname, tag ) except: pass @@ -347,10 +367,29 @@ def respond_with_json_bytes(request, code, json_bytes, send_cors=False, "Origin, X-Requested-With, Content-Type, Accept") request.write(json_bytes) - request.finish() + finish_request(request) return NOT_DONE_YET +def finish_request(request): + """ Finish writing the response to the request. + + Twisted throws a RuntimeException if the connection closed before the + response was written but doesn't provide a convenient or reliable way to + determine if the connection was closed. So we catch and log the RuntimeException + + You might think that ``request.notifyFinish`` could be used to tell if the + request was finished. However the deferred it returns won't fire if the + connection was already closed, meaning we'd have to have called the method + right at the start of the request. By the time we want to write the response + it will already be too late. + """ + try: + request.finish() + except RuntimeError as e: + logger.info("Connection disconnected before response was written: %r", e) + + def _request_user_agent_is_curl(request): user_agents = request.requestHeaders.getRawHeaders( "User-Agent", default=[] |