From 3d12d97415ac6d6a4ab8188af31c7df12c5d19f8 Mon Sep 17 00:00:00 2001 From: Richard van der Hoff Date: Fri, 12 Jan 2018 00:27:14 +0000 Subject: Track DB scheduling delay per-request For each request, track the amount of time spent waiting for a db connection. This entails adding it to the LoggingContext and we may as well add metrics for it while we are passing. --- synapse/http/server.py | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'synapse/http/server.py') diff --git a/synapse/http/server.py b/synapse/http/server.py index 0f30e6fd56..7b6418bc2c 100644 --- a/synapse/http/server.py +++ b/synapse/http/server.py @@ -102,6 +102,10 @@ response_db_txn_duration = metrics.register_counter( ), ) +# seconds spent waiting for a db connection, when processing this request +response_db_sched_duration = metrics.register_counter( + "response_db_sched_duration_seconds", labels=["method", "servlet", "tag"] +) _next_request_id = 0 @@ -381,6 +385,9 @@ class RequestMetrics(object): response_db_txn_duration.inc_by( context.db_txn_duration_ms / 1000., request.method, self.name, tag ) + response_db_sched_duration.inc_by( + context.db_sched_duration_ms / 1000., request.method, self.name, tag + ) class RootRedirect(resource.Resource): -- cgit 1.4.1