mirror of
https://github.com/django-q2/django-q2.git
synced 2026-09-15 21:47:53 +08:00
152 lines
3.3 KiB
ReStructuredText
152 lines
3.3 KiB
ReStructuredText
Monitor
|
|
=======
|
|
|
|
The cluster monitor shows information about all the Q clusters connected to your project.
|
|
|
|
Start the monitor with Django's `manage.py` command::
|
|
|
|
$ python manage.py qmonitor
|
|
|
|
|
|
.. image:: _static/monitor.png
|
|
|
|
Legend
|
|
------
|
|
|
|
Host
|
|
~~~~
|
|
|
|
Shows the hostname of the server this cluster is running on.
|
|
|
|
Id
|
|
~~
|
|
|
|
The cluster Id. Same as the cluster process ID or pid.
|
|
|
|
State
|
|
~~~~~
|
|
|
|
Current state of the cluster:
|
|
|
|
- **Starting** The cluster is spawning workers and getting ready.
|
|
- **Idle** Everything is ok, but there are no tasks to process.
|
|
- **Working** Processing tasks like a good cluster should.
|
|
- **Stopping** The cluster does not take on any new tasks and is finishing.
|
|
- **Stopped** All tasks have been processed and the cluster is shutting down.
|
|
|
|
Pool
|
|
~~~~
|
|
|
|
The current number of workers in the cluster pool.
|
|
|
|
TQ
|
|
~~
|
|
|
|
**Task Queue** counts the number of tasks in the queue
|
|
|
|
If this keeps rising it means you are taking on more tasks than your cluster can handle.
|
|
|
|
RQ
|
|
~~
|
|
|
|
**Result Queue** shows the number of results in the queue.
|
|
|
|
Since results are only saved by a single process which has to access the database.
|
|
It's normal for the result queue to take slightly longer to clear than the task queue.
|
|
|
|
RC
|
|
~~
|
|
|
|
**Reincarnations** shows the amount of processes that have been reincarnated after a sudden death or timeout.
|
|
If this number is unusually high, you are either suffering from repeated task errors or severe timeouts and you should check your logs for details.
|
|
|
|
Up
|
|
~~
|
|
|
|
**Uptime** the amount of time that has passed since the cluster was started.
|
|
|
|
|
|
.. centered:: Press `q` to quit the monitor and return to your terminal.
|
|
|
|
|
|
Status
|
|
------
|
|
|
|
You can check the status of your clusters straight from your code with :class:`Stat`:
|
|
|
|
.. code:: python
|
|
|
|
from django_q.monitor import Stat
|
|
|
|
for stat in Stat.get_all():
|
|
print(stat.cluster_id, stat.status)
|
|
|
|
# or if you know the cluster id
|
|
cluster_id = 1234
|
|
stat = Stat.get(cluster_id)
|
|
print(stat.status, stat.workers)
|
|
|
|
Reference
|
|
---------
|
|
|
|
.. py:class:: Stat
|
|
|
|
Cluster status object.
|
|
|
|
.. py:attribute:: cluster_id
|
|
|
|
Id of this cluster. Corresponds with the process id.
|
|
|
|
.. py:attribute:: tob
|
|
|
|
Time Of Birth
|
|
|
|
.. py:method:: uptime
|
|
|
|
Shows the number of seconds passed since the time of birth
|
|
|
|
.. py:attribute:: reincarnations
|
|
|
|
The number of times the sentinel had to start a new worker process.
|
|
|
|
.. py:attribute:: status
|
|
|
|
String representing the current cluster status.
|
|
|
|
.. py:attribute:: task_q_size
|
|
|
|
The number of tasks currently in the task queue.
|
|
|
|
.. py:attribute:: done_q_size
|
|
|
|
The number of tasks currently in the result queue.
|
|
|
|
.. py:attribute:: pusher
|
|
|
|
The pid of the pushes process
|
|
|
|
.. py:attribute:: monitor
|
|
|
|
The pid of the monitor process
|
|
|
|
.. py:attribute:: sentinel
|
|
|
|
The pid of the sentinel process
|
|
|
|
.. py:attribute:: workers
|
|
|
|
A list of process ids of the workers currently in the cluster pool.
|
|
|
|
.. py:method:: empty_queues
|
|
|
|
Returns true or false depending on any tasks still present in the task or result queue.
|
|
|
|
.. py:classmethod:: get(cluster_id, r=redis_client)
|
|
|
|
Gets the current :class:`Stat` for the cluster id. Takes an optional redis connection.
|
|
|
|
.. py:classmethod:: get_all(r=redis_client)
|
|
|
|
Returns a list of :class:`Stat` objects for all active clusters. Takes an optional redis connection.
|
|
|