diff options
Diffstat (limited to 'synapse/http/server.py')
| -rw-r--r-- | synapse/http/server.py | 107 |
1 files changed, 69 insertions, 38 deletions
diff --git a/synapse/http/server.py b/synapse/http/server.py index b82196fd5e..f705abab94 100644 --- a/synapse/http/server.py +++ b/synapse/http/server.py @@ -74,7 +74,12 @@ response_db_txn_duration = metrics.register_distribution( _next_request_id = 0 -def request_handler(request_handler): +def request_handler(report_metrics=True): + """Decorator for ``wrap_request_handler``""" + return lambda request_handler: wrap_request_handler(request_handler, report_metrics) + + +def wrap_request_handler(request_handler, report_metrics): """Wraps a method that acts as a request handler with the necessary logging and exception handling. @@ -96,7 +101,12 @@ def request_handler(request_handler): global _next_request_id request_id = "%s-%s" % (request.method, _next_request_id) _next_request_id += 1 + with LoggingContext(request_id) as request_context: + if report_metrics: + request_metrics = RequestMetrics() + request_metrics.start(self.clock) + request_context.request = request_id with request.processing(): try: @@ -133,6 +143,14 @@ def request_handler(request_handler): }, send_cors=True ) + finally: + try: + if report_metrics: + request_metrics.stop( + self.clock, request, self.__class__.__name__ + ) + except: + pass return wrapped_request_handler @@ -197,19 +215,23 @@ class JsonResource(HttpServer, resource.Resource): self._async_render(request) return server.NOT_DONE_YET - @request_handler + # Disable metric reporting because _async_render does its own metrics. + # It does its own metric reporting because _async_render dispatches to + # a callback and it's the class name of that callback we want to report + # against rather than the JsonResource itself. + @request_handler(report_metrics=False) @defer.inlineCallbacks def _async_render(self, request): """ This gets called from render() every time someone sends us a request. This checks if anyone has registered a callback for that method and path. """ - start = self.clock.time_msec() if request.method == "OPTIONS": self._send_response(request, 200, {}) return - start_context = LoggingContext.current_context() + request_metrics = RequestMetrics() + request_metrics.start(self.clock) # Loop through all the registered callbacks to check if the method # and path regex match @@ -241,40 +263,7 @@ class JsonResource(HttpServer, resource.Resource): self._send_response(request, code, response) 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, 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, tag - ) - response_db_txn_duration.inc_by( - context.db_txn_duration, request.method, servlet_classname, tag - ) + request_metrics.stop(self.clock, request, servlet_classname) except: pass @@ -307,6 +296,48 @@ class JsonResource(HttpServer, resource.Resource): ) +class RequestMetrics(object): + def start(self, clock): + self.start = clock.time_msec() + self.start_context = LoggingContext.current_context() + + def stop(self, clock, request, servlet_classname): + context = LoggingContext.current_context() + + tag = "" + if context: + tag = context.tag + + if context != self.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( + clock.time_msec() - self.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, 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, tag + ) + response_db_txn_duration.inc_by( + context.db_txn_duration, request.method, servlet_classname, tag + ) + + class RootRedirect(resource.Resource): """Redirects the root '/' path to another path.""" |