diff options
| -rw-r--r-- | changelog.d/13729.misc | 1 | ||||
| -rw-r--r-- | synapse/logging/opentracing.py | 13 |
2 files changed, 13 insertions, 1 deletions
diff --git a/changelog.d/13729.misc b/changelog.d/13729.misc new file mode 100644 index 0000000000..c6a6f617e3 --- /dev/null +++ b/changelog.d/13729.misc @@ -0,0 +1 @@ +Strip number suffix from instance name to consolidate services that traces are spread over. diff --git a/synapse/logging/opentracing.py b/synapse/logging/opentracing.py index 482316a1ff..adf3f54770 100644 --- a/synapse/logging/opentracing.py +++ b/synapse/logging/opentracing.py @@ -203,6 +203,9 @@ if TYPE_CHECKING: # Helper class +# Matches the number suffix in an instance name like "matrix.org client_reader-8" +STRIP_INSTANCE_NUMBER_SUFFIX_REGEX = re.compile(r"[_-]?\d+$") + class _DummyTagNames: """wrapper of opentracings tags. We need to have them if we @@ -441,9 +444,17 @@ def init_tracer(hs: "HomeServer") -> None: from jaeger_client.metrics.prometheus import PrometheusMetricsFactory + # Instance names are opaque strings but by stripping off the number suffix, + # we can get something that looks like a "worker type", e.g. + # "client_reader-1" -> "client_reader" so we don't spread the traces across + # so many services. + instance_name_by_type = re.sub( + STRIP_INSTANCE_NUMBER_SUFFIX_REGEX, "", hs.get_instance_name() + ) + config = JaegerConfig( config=hs.config.tracing.jaeger_config, - service_name=f"{hs.config.server.server_name} {hs.get_instance_name()}", + service_name=f"{hs.config.server.server_name} {instance_name_by_type}", scope_manager=LogContextScopeManager(), metrics_factory=PrometheusMetricsFactory(), ) |