Compare commits
1 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
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248469fe1e
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@@ -4,7 +4,6 @@ import time
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from asyncio import AbstractEventLoop
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from threading import Thread
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import psutil
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from aio_pika import Message
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from aio_pika.abc import AbstractRobustChannel
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@@ -47,40 +46,6 @@ class ScaleRequestV1:
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)
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class RunningAverage:
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def __init__(self, num_items):
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self.buffer = [0] * num_items # Fixed-size array
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self.pointer = 0 # Current position in array
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self.num_items = num_items # Maximum number of items to store
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self.is_filled = False # Track if buffer is fully filled
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def add(self, value):
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# Store the value at current pointer position
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self.buffer[self.pointer] = value
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# Move pointer to next position with wrap-around
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self.pointer += 1
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if self.pointer >= self.num_items:
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self.pointer = 0
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self.is_filled = True
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def get_average(self):
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# Determine how many items we should average
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count = self.num_items if self.is_filled else self.pointer
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if count == 0:
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return 0.0 # Avoid division by zero
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return sum(self.buffer) / count
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def get_current_values(self):
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"""Returns the values in chronological order (oldest first)"""
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if not self.is_filled:
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return self.buffer[: self.pointer]
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return self.buffer[self.pointer :] + self.buffer[: self.pointer]
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class BackpressureHandler:
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# Track the number of messages currently being processed
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current_parallel_executions = 0
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@@ -104,7 +69,6 @@ class BackpressureHandler:
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self.swarm_service_id = self.config.amq_adapter.swarm_service_id
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self.swarm_task_id = self.config.amq_adapter.swarm_task_id
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self.parallel_workers = self.config.backpressure.threshold_threads
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self.average_cpu_usage = None
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def increase_parallel_executions(self):
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"""Increase the number of parallel executions"""
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@@ -155,93 +119,67 @@ class BackpressureHandler:
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self.last_backpressure_event = ScalingRequestAlert.OVERLOAD
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def backpressure_monitor_loop(self):
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_time_window_millis = self.config.backpressure.time_window
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_idle_duration_millis = self.config.backpressure.idle_duration
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_overload_duration_millis = self.config.backpressure.idle_duration
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_time_window_sec = self.config.backpressure.time_window
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_idle_duration_millis = 1000 * self.config.backpressure.idle_duration
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_loop = asyncio.new_event_loop()
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_monitor_interval = 0.2 # Monitor every 200ms
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CPU_IDLE, CPU_ACTIVE, CPU_OVERLOAD = 0, 1, 2
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IDLE_THRESHOLD, OVERLOAD_THRESHOLD = 15, 90
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self.average_cpu_usage = RunningAverage(
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int(
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max(_overload_duration_millis, _idle_duration_millis)
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// _monitor_interval
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)
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)
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async def _backpressure_monitor():
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"""Monitor the backpressure conditions and trigger events accordingly"""
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_cpu_usage_state = CPU_ACTIVE
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_cpu_usage_changed = time.time()
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while True:
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_current_cpu_usage = psutil.cpu_percent(interval=None)
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self.average_cpu_usage.add(_current_cpu_usage)
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_average_cpu_usage = self.average_cpu_usage.get_average()
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_now = time.time()
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logging_info(
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"Backpressure: current CPU[pct]=%s, avg=%s, state=%s, last dataMsg=%s, last event=%s, last eventTime=%s",
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_current_cpu_usage,
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_average_cpu_usage,
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_cpu_usage_state,
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"Backpressure: Monitor loop, current=%s",
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self.current_parallel_executions,
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)
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logging_info(
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"Backpressure: Last data message time=%s, eventTime=%s",
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self.last_data_message_time,
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self.last_backpressure_event,
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self.last_backpressure_event_time,
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)
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if _average_cpu_usage < IDLE_THRESHOLD:
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if _cpu_usage_state != CPU_IDLE:
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_cpu_usage_changed = _now
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_cpu_usage_state = CPU_IDLE
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elif _average_cpu_usage > OVERLOAD_THRESHOLD:
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if _cpu_usage_state != CPU_OVERLOAD:
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_cpu_usage_changed = _now
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_cpu_usage_state = CPU_OVERLOAD
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else:
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if _cpu_usage_state != CPU_ACTIVE:
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_cpu_usage_changed = _now
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_cpu_usage_state = CPU_ACTIVE
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logging_info(
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"Backpressure: Last backpressure event=%s",
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self.last_backpressure_event,
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)
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# Check if the current time exceeds the last backpressure event time
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if (
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_cpu_usage_state == CPU_OVERLOAD
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and _now - _cpu_usage_changed > _overload_duration_millis
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and (
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_now - self.last_backpressure_event_time > _time_window_millis
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or self.last_backpressure_event != ScalingRequestAlert.OVERLOAD
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)
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self.current_parallel_executions >= self.parallel_workers
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and time.time() - self.last_backpressure_event_time
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> _time_window_sec
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and self.last_backpressure_event != ScalingRequestAlert.OVERLOAD
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):
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# Trigger the overload event
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await self.handle_backpressure_overload_event()
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self.last_backpressure_event_time = _now
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self.last_backpressure_event_time = time.time()
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self.last_backpressure_event = ScalingRequestAlert.OVERLOAD
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elif (
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_cpu_usage_state == CPU_IDLE
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and _now - _cpu_usage_changed > _idle_duration_millis
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and _now - self.last_data_message_time > _idle_duration_millis
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and (
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_now - self.last_backpressure_event_time > _time_window_millis
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or self.last_backpressure_event != ScalingRequestAlert.IDLE
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)
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self.current_parallel_executions == 0
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and time.time() - self.last_data_message_time
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>= _idle_duration_millis
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and self.last_backpressure_event != ScalingRequestAlert.IDLE
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):
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# Trigger the idle event
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await self._handle_backpressure_idle_event()
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self.last_backpressure_event = ScalingRequestAlert.IDLE
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self.last_backpressure_event_time = _now
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self.last_backpressure_event_time = time.time()
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else:
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# Trigger update event
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if _now - self.last_backpressure_event_time > _time_window_millis:
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if (
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self.current_parallel_executions > 0
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and time.time() - self.last_backpressure_event_time
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> _time_window_sec
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):
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# Trigger the update event
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_scaling_request: ScaleRequestV1 = ScaleRequestV1(
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self.swarm_service_id,
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self.swarm_task_id,
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100,
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_average_cpu_usage,
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self.parallel_workers,
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self.parallel_workers - self.current_parallel_executions,
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ScalingRequestAlert.UPDATE,
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)
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# Address the message to any adapter capable of supporting BACKPRESSURE request
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await self.publish_backpressure_request(_scaling_request)
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self.last_backpressure_event_time = _now
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self.last_backpressure_event_time = time.time()
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self.last_backpressure_event = ScalingRequestAlert.UPDATE
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await asyncio.sleep(_monitor_interval)
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await asyncio.sleep(_time_window_sec)
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_loop.run_until_complete(_backpressure_monitor())
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@@ -2,41 +2,30 @@
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# CleverMicro AMQ Adapter settings
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# ====================================================================
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[CleverMicro-AMQ]
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# CleverMicro AMQ Adapter settings that identify this AMQ Adapter instance to other adapters
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# A name to identify this service for the AMQ Adapter
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cm.amq-adapter.service-name=cleverthis-service-name
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# The CleverMicro AMQ Adapter instance ID, used to identify this instance in the CleverMicro AMQ Adapter cluster
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cm.amq-adapter.generator-id=1
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# Route mapping. For route detail description see section 3.1 in Onboarding Guide for Python:
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# https://docs.cleverthis.com/en/architecture/microservices/onboarding/python
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# NOTE: this is a comma-separated list of route mappings (multiple, comma-separated routes are allowed here)
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cm.amq-adapter.route-mapping=
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# Indicate if AMQ Adapter should respond with HTTP 401 Unauthorized if the request does not contain valid JWT token
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cm.amq-adapter.service-name=amq-adapter-python
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cm.amq-adapter.generator-id=164
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cm.amq-adapter.route-mapping=amq-cleverswarm::amq-cleverswarm:cleverswarm.localhost.#:5:0
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cm.amq-adapter.require-authenticated-user=false
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# CleverMicro AMQ Adapter dispatcher, settings related to RabbitMQ connection and optional REST forwarding
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cm.dispatch.use-dlq=true
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cm.dispatch.use-confirms=false
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cm.dispatch.amq-host=rabbitmq
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cm.dispatch.amq-port=5672
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cm.dispatch.amq-port-tls=5671
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cm.dispatch.download-dir=/tmp/downloaded_files
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# Not used for CleveSwarm nor CleverBRAG or in tight coupling mode.
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# Not used for CleverSwarm nor CleverBRAG or in tight coupling mode.
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# applicable only in loose coupling mode, specify the destination where to forward the REST request
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#cm.dispatch.service-host=cleverthis-service-name.localhost
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#cm.dispatch.service-host=cleverswarm.localhost
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#cm.dispatch.service-port=8080
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# Backpressure monitor settings
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#
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# Define maximum number of messages of being processed in parallel before triggering backpressure OVERLOAD alert
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cm.backpressure.threshold=5
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# Define maximum CPU usage (%) before triggering backpressure OVERLOAD alert
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cm.backpressure.threshold-cpu-overload=90
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# Define maximum CPU usage (%) before triggering backpressure IDLE alert
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cm.backpressure.threshold-cpu-idle=10
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# Define maximum CPU usage before triggering backpressure OVERLOAD alert
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cm.backpressure.threshold-cpu=90
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# Define the time window between the Backpressure reports, in seconds
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cm.backpressure.time-window=10
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# Define the time window length, in seconds, during which, if CPU usage is consistently above the threshold, the system will trigger OVERLOAD alert
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cm.backpressure.cpu-overload-duration=30
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# Define the time window length, in seconds, during which, if no request is made to the Service, the system will trigger IDLE alert
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cm.backpressure.cpu-idle-duration=30
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cm.backpressure.idle-duration=30
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@@ -1,8 +1,7 @@
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import logging
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import aio_pika
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from aio_pika.abc import AbstractRobustQueue, AbstractRobustExchange
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from pika.exchange_type import ExchangeType
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from aio_pika.abc import AbstractRobustQueue, AbstractRobustExchange, ExchangeType
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from amqp.adapter.data_message_factory import DataMessageFactory
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from amqp.adapter.logging_utils import (
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@@ -55,7 +54,7 @@ class RabbitMQClient:
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name=cm_reply_to_queue, durable=True, exclusive=False, auto_delete=False
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)
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self.reply_to_exchange = await self.channel.declare_exchange(
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AMQ_REPLY_TO_EXCHANGE, type=ExchangeType.direct
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AMQ_REPLY_TO_EXCHANGE, type=ExchangeType.DIRECT
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)
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await self.reply_to_queue.bind(
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exchange=self.reply_to_exchange, routing_key=cm_reply_to_queue
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@@ -114,7 +113,7 @@ class RabbitMQClient:
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)
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exchange: AbstractRobustExchange = (
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await self.channel.declare_exchange(
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name=_exchange_name, type=ExchangeType.topic
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name=_exchange_name, type=ExchangeType.TOPIC
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)
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)
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await queue.bind(exchange, route.key)
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@@ -15,9 +15,8 @@ from aio_pika.abc import (
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AbstractRobustQueue,
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AbstractRobustConnection,
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AbstractRobustExchange,
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AbstractIncomingMessage,
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AbstractIncomingMessage, ExchangeType,
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)
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from pika.exchange_type import ExchangeType
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from amqp.adapter.logging_utils import (
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logging_error,
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@@ -82,13 +81,13 @@ class RouterProducer(RouterBase):
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# **** set up the service discovery internal exchanges ****
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# 1. declare RequestExchange to where to publish the RoutingData requests
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self.cm_request_exchange = await self.channel.declare_exchange(
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name=CM_REQUEST_EXCHANGE, type=ExchangeType.fanout
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name=CM_REQUEST_EXCHANGE, type=ExchangeType.FANOUT
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)
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#
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# 2. declare ResponseExchange where to publish current RoutingData (response to
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# a RoutingData request)
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self.cm_response_exchange = await self.channel.declare_exchange(
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name=CM_RESPONSE_EXCHANGE, type=ExchangeType.fanout
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name=CM_RESPONSE_EXCHANGE, type=ExchangeType.FANOUT
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)
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# 2a. declare a Response queue for Routing Data replies from Services
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_cm_response_queue: str = self.get_response_queue_name()
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@@ -145,9 +144,9 @@ class RouterProducer(RouterBase):
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cm_message.reply_to,
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)
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if (
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cm_message.is_valid()
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and not self.amq_configuration.amq_adapter.service_name
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== cm_message.reply_to
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cm_message.is_valid()
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and not self.amq_configuration.amq_adapter.service_name
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== cm_message.reply_to
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):
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if cm_message.message_type == ServiceMessageType.ROUTING_DATA:
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self.add_routes(cm_message.message)
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@@ -167,7 +166,7 @@ class RouterProducer(RouterBase):
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ServiceMessageType.ROUTING_DATA_REQUEST, "", ANY_RECIPIENT
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)
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if not await self.publish_service_message(
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serviceMessage, self.cm_request_exchange
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serviceMessage, self.cm_request_exchange
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):
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logging_warning(
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"RouterProducer could not request route data: %s channel is not open.",
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@@ -178,7 +177,7 @@ class RouterProducer(RouterBase):
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logging_error("RouterProducer failed request routing data: %s", ioe)
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async def publish_service_message(
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self, message: ServiceMessage, exchange: AbstractRobustExchange
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self, message: ServiceMessage, exchange: AbstractRobustExchange
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) -> bool:
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"""
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* Publishes a service message to the service queue and logs success log entry.
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@@ -75,21 +75,12 @@ class DataMessageHandler:
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self.file_handler: FileHandler = file_handler
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self.backpressure_handler: BackpressureHandler = backpressure_handler
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async def inbound_data_message_callback_as_thread(
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self, message: AbstractIncomingMessage
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):
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"""
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The callback method that is called when a DataMessage is received from RabbitMQ, starts new Thread.
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"""
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async def inbound_data_message_callback(self, message: AbstractIncomingMessage):
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threading.Thread(
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target=lambda: asyncio.run(
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self.inbound_data_message_callback_no_thread(message)
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)
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target=lambda: asyncio.run(self.run_callback_thread(message))
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).start()
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async def inbound_data_message_callback_no_thread(
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self, message: AbstractIncomingMessage
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):
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async def run_callback_thread(self, message: AbstractIncomingMessage):
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"""
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Receives the DataMessage as bytes from RabbitMQ queue and deserializes it to the DataMessage object
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Ensures Jaeger trace-id propagation.
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@@ -107,7 +107,7 @@ class AMQService:
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try:
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await self.rabbit_mq_client.register_inbound_routes(
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route_mapping,
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self.amq_data_message_handler.inbound_data_message_callback_no_thread,
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self.amq_data_message_handler.inbound_data_message_callback,
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)
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return await self.rabbit_mq_client.register_data_reply_callback(
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self.amq_data_message_handler.reply_received_callback
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@@ -252,13 +252,11 @@ class CleverSwarmAmqpAdapter(CleverThisServiceAdapter):
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for _body_param in _route.dependant.body_params:
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if _body_param.name in _form_data:
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_file_data = _form_data[_body_param.name]
|
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actual_filepath = message.extra_data[_body_param.name]
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_form_data[_body_param.name] = (
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_body_param.type_.__name__ == "UploadFile"
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and message.extra_data.get(_body_param.name)
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and UploadFile(
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file=pathlib.Path(
|
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message.extra_data.get(_body_param.name)
|
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).open("rb"),
|
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file=pathlib.Path(actual_filepath).open("rb"),
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size=_file_data["size"],
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filename=_file_data["filename"],
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||||
headers=Headers(
|
||||
|
||||
+6
-7
@@ -4,8 +4,8 @@ build-backend = "setuptools.build_meta"
|
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|
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[project]
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name = "amq_adapter"
|
||||
version = "0.2.27"
|
||||
description = "The Python implementation of the AMQ Adapter for CleverMicro"
|
||||
version = "0.2.23-dev"
|
||||
description = "The Python implementation of the AMQ Adaptor for CleverMicro"
|
||||
readme = "README.md"
|
||||
authors = [
|
||||
{ name = "Stanislav Hejny", email = "stanislav.hejny@cleverthis.com" }
|
||||
@@ -19,16 +19,15 @@ classifiers = [
|
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]
|
||||
requires-python = ">=3.11"
|
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dependencies = [
|
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"aio-pika~=9.5.5",
|
||||
"aiohttp~=3.11.11",
|
||||
"fastapi==0.114.2",
|
||||
"aio-pika~=9.5",
|
||||
"aiohttp~=3.11",
|
||||
"aio_pika~=9.5",
|
||||
"fastapi~=0.114",
|
||||
"opentelemetry-api",
|
||||
"opentelemetry-sdk",
|
||||
"opentelemetry-exporter-otlp",
|
||||
"opentelemetry-exporter-prometheus",
|
||||
"opentelemetry-instrumentation-pika",
|
||||
"pika~=1.3.2",
|
||||
"psutil",
|
||||
"python_multipart"
|
||||
]
|
||||
|
||||
|
||||
@@ -1,90 +0,0 @@
|
||||
import asyncio
|
||||
import aio_pika
|
||||
import os
|
||||
import argparse
|
||||
import sys
|
||||
|
||||
from aio_pika.abc import AbstractRobustExchange
|
||||
|
||||
|
||||
async def create_exchange(loop, rabbit_user, rabbit_password, rabbit_host):
|
||||
"""
|
||||
Asynchronously connects to RabbitMQ, declares a direct exchange,
|
||||
and prints the result. Handles potential connection errors.
|
||||
"""
|
||||
exchange_name = "cleverthis.clevermicro.management"
|
||||
connection = None # Keep track of the connection
|
||||
|
||||
try:
|
||||
# Construct the connection URI from environment variables
|
||||
connection_uri = f"amqp://{rabbit_user}:{rabbit_password}@{rabbit_host}/"
|
||||
|
||||
# Attempt to establish the connection
|
||||
connection = await aio_pika.connect_robust(connection_uri, loop=loop)
|
||||
print(f"Connected to RabbitMQ: {connection_uri}")
|
||||
|
||||
# Create a channel
|
||||
channel = await connection.channel()
|
||||
|
||||
# Declare the exchange
|
||||
exchange: AbstractRobustExchange = await channel.declare_exchange(
|
||||
exchange_name, aio_pika.ExchangeType.DIRECT
|
||||
)
|
||||
print(f"Exchange '{exchange.name}' created successfully.")
|
||||
|
||||
except aio_pika.exceptions.AMQPConnectionError as e:
|
||||
print(f"Error: Could not connect to RabbitMQ. Details: {e}")
|
||||
sys.exit(1) # Exit with an error code
|
||||
except aio_pika.exceptions.AMQPChannelError as e:
|
||||
print(f"Error creating channel or exchange: {e}")
|
||||
sys.exit(1)
|
||||
except Exception as e:
|
||||
print(f"An unexpected error occurred: {e}")
|
||||
sys.exit(1)
|
||||
finally:
|
||||
# Ensure the connection is closed, even if errors occur
|
||||
if connection:
|
||||
await connection.close()
|
||||
print("Connection to RabbitMQ closed.")
|
||||
|
||||
def main():
|
||||
"""
|
||||
Main function to parse command-line arguments, retrieve RabbitMQ
|
||||
credentials from environment variables, and run the
|
||||
async exchange creation.
|
||||
"""
|
||||
# Set up argument parsing
|
||||
parser = argparse.ArgumentParser(description="Create a RabbitMQ exchange.")
|
||||
parser.add_argument(
|
||||
"--host",
|
||||
default="localhost",
|
||||
help="RabbitMQ host (default: localhost)",
|
||||
)
|
||||
|
||||
# Parse the arguments
|
||||
args = parser.parse_args()
|
||||
rabbit_host = args.host
|
||||
|
||||
# Get RabbitMQ credentials from environment variables
|
||||
rabbit_user = os.environ.get("RABBIT_MQ_USER")
|
||||
rabbit_password = os.environ.get("RABBIT_MQ_PASSWORD")
|
||||
|
||||
if not rabbit_user or not rabbit_password:
|
||||
print(
|
||||
"Error: RabbitMQ credentials not found in environment variables.\n"
|
||||
"Please set RABBIT_MQ_USER and RABBIT_MQ_PASSWORD."
|
||||
)
|
||||
sys.exit(1) # Exit with an error code
|
||||
|
||||
# Create the event loop
|
||||
loop = asyncio.get_event_loop()
|
||||
|
||||
# Run the asynchronous exchange creation
|
||||
loop.run_until_complete(create_exchange(loop, rabbit_user, rabbit_password, rabbit_host))
|
||||
|
||||
# Close the loop
|
||||
loop.close()
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user