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-rw-r--r--changelog.d/10112.misc1
-rw-r--r--mypy.ini2
-rw-r--r--synapse/logging/opentracing.py3
3 files changed, 5 insertions, 1 deletions
diff --git a/changelog.d/10112.misc b/changelog.d/10112.misc
new file mode 100644
index 0000000000..40af09760c
--- /dev/null
+++ b/changelog.d/10112.misc
@@ -0,0 +1 @@
+Enable Prometheus metrics for the jaeger client library.
diff --git a/mypy.ini b/mypy.ini
index 062872020e..8ba1b96311 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -130,7 +130,7 @@ ignore_missing_imports = True
 [mypy-canonicaljson]
 ignore_missing_imports = True
 
-[mypy-jaeger_client]
+[mypy-jaeger_client.*]
 ignore_missing_imports = True
 
 [mypy-jsonschema]
diff --git a/synapse/logging/opentracing.py b/synapse/logging/opentracing.py
index 68f0c00151..26c8ffe780 100644
--- a/synapse/logging/opentracing.py
+++ b/synapse/logging/opentracing.py
@@ -362,10 +362,13 @@ def init_tracer(hs: "HomeServer"):
 
     set_homeserver_whitelist(hs.config.opentracer_whitelist)
 
+    from jaeger_client.metrics.prometheus import PrometheusMetricsFactory
+
     config = JaegerConfig(
         config=hs.config.jaeger_config,
         service_name="{} {}".format(hs.config.server_name, hs.get_instance_name()),
         scope_manager=LogContextScopeManager(hs.config),
+        metrics_factory=PrometheusMetricsFactory(),
     )
 
     # If we have the rust jaeger reporter available let's use that.