uranusjr commented on code in PR #70517:
URL: https://github.com/apache/airflow/pull/70517#discussion_r3800265961
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task-sdk/src/airflow/sdk/observability/metrics/statsd_logger.py:
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@@ -23,32 +23,49 @@
from airflow.sdk._shared.observability.metrics import statsd_logger
from airflow.sdk.configuration import conf
+log = logging.getLogger(__name__)
+
if TYPE_CHECKING:
from airflow.sdk._shared.observability.metrics.statsd_logger import
SafeStatsdLogger
-log = logging.getLogger(__name__)
-
def get_statsd_logger() -> SafeStatsdLogger:
- stats_class = conf.getimport("metrics", "statsd_custom_client_path",
fallback=None)
+ # Local import to avoid requiring statsd when other backends are used
(e.g. Datadog)
+ from statsd import StatsClient, UnixSocketStatsClient
- # no need to check for the scheduler/statsd_on -> this method is only
called when it is set
- # and previously it would crash with None is callable if it was called
without it.
- from statsd import StatsClient
+ socket_path = conf.get("metrics", "statsd_socket_path", fallback=None)
+ custom_class = conf.getimport("metrics", "statsd_custom_client_path",
fallback=None)
- if stats_class:
- if not issubclass(stats_class, StatsClient):
+ if custom_class is not None:
+ if socket_path is not None:
+ if not (isinstance(custom_class, type) and
issubclass(custom_class, UnixSocketStatsClient)):
+ raise AirflowConfigException(
+ "Your custom StatsD client must extend the
statsd.UnixSocketStatsClient "
+ "when using a socket path in order to ensure backwards
compatibility."
+ )
+ elif not (
+ isinstance(custom_class, type) and issubclass(custom_class,
(StatsClient, UnixSocketStatsClient))
Review Comment:
I don’t think this is right? When we reach here, `socket_path` is not None,
so UnixSocketStatsClient should not be rejected?
Also, the `isinstance(custom_class, type)` part seems excessive. A non-type
input here would simply cause a `TypeError` on `issubclass`, which would be
clean enough for users to know they should have passed in a type. This is also
documented anyway.
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