[Bug 1153077] [NEW] rabbitmq queue fills up and salary stops executing tasks when upload_dhcp_leases is done every minute (by default)

[Mark Stillwell]

Public bug reported:

With the default MAAS install I was having a problem where celery would
become unresponsive and stop running new tasks (including powering
compute nodes on/off) after a while, and eventually the system would
have out of memory errors. The problem seems to have been that the queue
was filling up with dhcp_upload_leases tasks (I checked on this by
getting tasks out with the amqp tools...). This problem goes away if the
timedelta in /usr/share/maas/celeryconfig_cluster.py is changed from 1
minute to 5 minutes.

** Affects: maas (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  rabbitmq queue fills up and salary stops executing tasks when
  upload_dhcp_leases is done every minute (by default)

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