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celery_statsd.py
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celery_statsd.py
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# -*- coding: utf-8 -*-
"""
参考：
https://docs.celeryproject.org/en/latest/userguide/monitoring.html
https://lxkaka.wang/2018/11/21/celery-monitor/#&gid=1&pid=5
https://www.infoq.com/news/2018/02/monitoring-queues-meilleursagent/
使用方法:
1.启动graphite和grafana: cd monitors && docker-compose up
2.修改`celery_statsd.py`的参数`http_api`为rabbitmq的api地址，默认为：
'http://guest:guest@localhost:15672/api/'
3.启动celery
4.监测worker和队列：python manage.py celery events -c celery_statsd.Camera -F 2.0
5.监测celery事件（任务、心跳等）：python celery_statsd.py
6.打开grafana，并导入`monitors/grafana_dashboard.json`
可选：python flowerd.py --persistent=true --port=6666 --url_prefix=flower --basic_auth=admin:admin
--broker_api=http://guest:guest@localhost:15672/api/
启动flower作为实时监控方案，并提供一定的实时干预能力
statsd上报目录：
celery.workers.{worker_hostname}.*
celery.queues.{queue_name}.tasks
celery.{task.name}.*
任务监控维度：
统计维度 - count
总任务数
失败任务数【主要】
成功任务数
单任务维度 - count
成功数
失败数【主要】
平均耗时/最大耗时【主要】
异常监控维度：
worker
心跳监测
离线监测
queue
堵塞监测
flow
启动异常【start_pipeline/start】
分支执行异常
节点失败异常【service_schedule】
"""
import os
from collections import defaultdict
import django
from celery import states
from celery.events.snapshot import Polaroid
from monitors.utils import Broker
class Camera(Polaroid):
clear_after = True # clear after flush (incl, state.event_count).
def on_shutter(self, state):
if not state.event_count:
# No new events since last snapshot.
return
# print('Workers: {0}'.format(pformat(state.workers, indent=4)))
# print('Tasks: {0}'.format(pformat(state.tasks, indent=4)))
# print('Total: {0.event_count} events, {0.task_count} tasks'.format(state))
proceed_success, proceed_failure = defaultdict(int), defaultdict(int)
for _, task in state.itertasks():
if task.state == states.SUCCESS:
proceed_success[task.worker.hostname] += 1
if task.state == states.FAILURE:
proceed_failure[task.worker.hostname] += 1
for worker in state.workers:
print(worker)
if worker not in proceed_success:
proceed_success[worker] = 0
if worker not in proceed_failure:
proceed_failure[worker] = 0
from statsd.defaults.django import statsd as statsd_client
for hostname, worker in state.workers.items():
worker_name = worker.hostname
statsd_client.gauge(f"celery.workers.{worker_name}.active", worker.active)
statsd_client.gauge(f"celery.workers.{worker_name}.alive", worker.alive)
statsd_client.gauge(f"celery.workers.{worker_name}.processed", worker.processed)
statsd_client.gauge(
f"celery.workers.{worker_name}.processed_succeeded", proceed_success[worker_name],
)
statsd_client.gauge(
f"celery.workers.{worker_name}.processed_failed", proceed_failure[worker_name],
)
# statsd_client.gauge(
# f"celery.workers.{worker_name}.status_string", worker.status_string
# )
from blueapps.core.celery.celery import app as celery_app
try:
broker = Broker(
celery_app.connection().as_uri(include_password=True),
http_api="http://guest:guest@localhost:15672/api/",
)
except NotImplementedError:
return
# inspect active queue names
inspect = celery_app.control.inspect()
queue_names = set()
for worker_name, queues in inspect.active_queues().items():
for q in queues:
queue_names.add(q["name"])
# query broker: rq/redis...
data = defaultdict(int)
for queue in broker.queues(queue_names):
data[queue["name"]] = queue.get("messages", 0)
statsd_client.gauge(f"celery.queues.{queue['name']}.tasks", queue.get("messages", 0))
# print("Queues: {0}".format(pformat(data, indent=4)))
def monitor(celery_app, statsd_client):
state = celery_app.events.State()
def _get_task(event):
# task name is sent only with -received event,
# and state will keep track of this for us.
state.event(event)
return state.tasks.get(event["uuid"])
def on_task_received(event):
task = _get_task(event)
statsd_client.incr(f"celery.{task.name}.received")
# print('TASK RECEIVED: %s[%s] %s' % (task.name, task.uuid, task.info(),))
def on_task_revoked(event):
task = _get_task(event)
statsd_client.incr(f"celery.{task.name}.revoked")
# print('TASK REVOKED: %s[%s] %s' % (task.name, task.uuid, task.info(),))
def on_task_started(event):
task = _get_task(event)
statsd_client.incr(f"celery.{task.name}.started")
# print('TASK STARTED: %s[%s] %s' % (task.name, task.uuid, task.info(),))
def on_task_failed(event):
task = _get_task(event)
statsd_client.incr(f"celery.{task.name}.failed")
# print('TASK FAILED: %s[%s] %s' % (task.name, task.uuid, task.info(),))
def on_task_succeeded(event):
task = _get_task(event)
task_info = task.info()
statsd_client.incr(f"celery.{task.name}.succeeded")
statsd_client.timing(f"celery.{task.name}.runtime", int(task_info["runtime"] * 1000))
# print('TASK SUCCEEDED: %s[%s] %s' % (task.name, task.uuid, task_info,))
def on_worker_online(event):
statsd_client.incr(f'celery.workers.{event["hostname"]}.online')
def on_worker_offline(event):
statsd_client.incr(f'celery.workers.{event["hostname"]}.offline')
def on_worker_heartbeat(event):
statsd_client.incr(f'celery.workers.{event["hostname"]}.heartbeat')
with celery_app.connection() as connection:
recv = celery_app.events.Receiver(
connection,
handlers={
"task-started": on_task_started,
"task-revoked": on_task_revoked,
"task-received": on_task_received,
"task-failed": on_task_failed,
"task-succeeded": on_task_succeeded,
"worker-online": on_worker_online,
"worker-offline": on_worker_offline,
"worker-heartbeat": on_worker_heartbeat,
},
)
recv.capture(limit=None, timeout=None, wakeup=True)
if __name__ == "__main__":
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings")
django.setup()
from blueapps.core.celery.celery import app as celery_app
from statsd.defaults.django import statsd as statsd_client
monitor(celery_app, statsd_client)