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[Data] Extract StreamingExecutor gauge init in separate func #59069

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[Data] Extract StreamingExecutor gauge init in separate func #59069

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01887b9
update
owenowenisme Nov 29, 2025
2e4d984
remove unnecessary comment
owenowenisme Nov 29, 2025
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12 changes: 8 additions & 4 deletions python/ray/data/_internal/execution/streaming_executor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -117,6 +117,14 @@ def __init__(
# by comparing it with the current timestamp.
self._metrics_last_updated: float = 0.0

self._initialize_metrics_gauges()

Executor.__init__(self, self._data_context.execution_options)
thread_name = f"StreamingExecutor-{self._dataset_id}"
threading.Thread.__init__(self, daemon=True, name=thread_name)

def _initialize_metrics_gauges(self) -> None:
"""Initialize all Prometheus-style metrics gauges for monitoring execution."""
self._sched_loop_duration_s = Gauge(
"data_sched_loop_duration_s",
description="Duration of the scheduling loop in seconds",
Expand Down Expand Up @@ -149,10 +157,6 @@ def __init__(
tag_keys=("dataset", "operator"),
)

Executor.__init__(self, self._data_context.execution_options)
thread_name = f"StreamingExecutor-{self._dataset_id}"
threading.Thread.__init__(self, daemon=True, name=thread_name)

def execute(
self, dag: PhysicalOperator, initial_stats: Optional[DatasetStats] = None
) -> OutputIterator:
Expand Down