Disable warn on overflow in config channel receivers (#1152)

Author: llucax

pyproject.toml

@@ -30,7 +30,7 @@ dependencies = [
   # changing the version
   # (plugins.mkdocstrings.handlers.python.import)
   "frequenz-client-microgrid >= 0.6.0, < 0.7.0",
-  "frequenz-channels >= 1.4.0, < 2.0.0",
+  "frequenz-channels >= 1.6.0, < 2.0.0",
   "frequenz-quantities[marshmallow] >= 1.0.0, < 2.0.0",
   "networkx >= 2.8, < 4",
   "numpy >= 1.26.4, < 2",
@@ -48,7 +48,7 @@ email = "[email protected]"
 dev-flake8 = [
   "flake8 == 7.1.1",
   "flake8-docstrings == 1.7.0",
-  "flake8-pyproject == 1.2.3",  # For reading the flake8 config from pyproject.toml
+  "flake8-pyproject == 1.2.3", # For reading the flake8 config from pyproject.toml
   "pydoclint == 0.5.14",
   "pydocstyle == 6.3.0",
 ]

src/frequenz/sdk/config/_manager.py

@@ -227,7 +227,11 @@ def new_receiver(  # pylint: disable=too-many-arguments
         """
         _validate_load_kwargs(marshmallow_load_kwargs)
 
-        receiver = self.config_channel.new_receiver(name=f"{self}:{key}", limit=1).map(
+        # We disable warning on overflow, because we are only interested in the latest
+        # configuration, it is completely fine to drop old configuration updates.
+        receiver = self.config_channel.new_receiver(
+            name=f"{self}:{key}", limit=1, warn_on_overflow=False
+        ).map(
             lambda config: _load_config_with_logging_and_errors(
                 config,
                 config_class,

src/frequenz/sdk/microgrid/_data_pipeline.py

@@ -22,7 +22,6 @@
 from .._internal._channels import ChannelRegistry
 from ..actor._actor import Actor
 from ..timeseries import ResamplerConfig
-from ..timeseries._grid_frequency import GridFrequency
 from ..timeseries._voltage_streamer import VoltageStreamer
 from ..timeseries.grid import Grid
 from ..timeseries.grid import get as get_grid
@@ -35,6 +34,7 @@
 #
 # pylint: disable=import-outside-toplevel
 if typing.TYPE_CHECKING:
+    from ..timeseries._grid_frequency import GridFrequency
     from ..timeseries.battery_pool import BatteryPool
     from ..timeseries.battery_pool._battery_pool_reference_store import (
         BatteryPoolReferenceStore,
@@ -140,6 +140,8 @@ def __init__(
 
     def frequency(self) -> GridFrequency:
         """Return the grid frequency measuring point."""
+        from ..timeseries._grid_frequency import GridFrequency
+
         if self._frequency_instance is None:
             self._frequency_instance = GridFrequency(
                 self._data_sourcing_request_sender(),