Can't Create Stacks, 'Request Limit Exceeded'

Problem

Heat Stack creation fails and errors like the one below are logged in heat.log.

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Environment

  • Platform9 Managed OpenStack - v4.0 and Higher

Cause

The maximum stacks per tenant limit has been reached.

Resolution

In PMK, the heat configuration exists on the management plane. Updating maximum stacks per tenant will need to be performed by support.

Please open a ticket for assistance with this.

Additional Information

Below is a summary of the steps taken by support to make this change.

1 - Set max_stacks_per_tenant= <value> in /etc/heat/heat.conf

2 - # systemctl restart openstack-heat-api

3 - # systemctl restart openstack-heat-engine

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