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8.3.10. Per-user Resource Quotas
Resource quotas may be set on a per-user basis using ACL for fine-grained control.
Rule Syntax
The per-user ACL rule syntax is:
quota connections|queues value <group-name-list>|<user-name-list> [ <group-name-list>|<user-name-list>]
Connection quotas
Connection quotas work in conjunction with the command line switch '--connection-limit-per-user N' to limit users to some number of concurrent connections.
- If the command line switch '
--connection-limit-per-user' is absent and there are no 'quota connections' rules in the ACL file then connection limits are not enforced. - If the command line switch '
--connection-limit-per-user' is present then it assigns an initial value for the pseudo-user 'all'. - If the ACL file specifies a quota for pseudo user 'all' than that value is applied to all users who are otherwise unnamed in the ACL file.
- Connection quotas for users are registered in order as the rule file is processed. A user may be assigned any number of connection quota values but only the final value is retained and enforced.
- Connection quotas for groups are applied as connection quotas for each individual user in the group at the time the 'quota connections' line is processed.
- Quota values range from 0 to 65530. A value of zero (0) denies connections.
Queue quota
Queue quotas work in conjunction with the command line switch '--max-queues-per-user N' to limit users to some number of concurrent queues.
- If the command line switch '
--max-queues-per-user' is absent and there are no 'quota queues' rules in the ACL file then queue limits are not enforced. - If the command line switch '
--max-queues-per-user' is present then it assigns an initial value for the pseudo-user 'all'. - If the ACL file specifies a quota for pseudo user 'all' than that value is applied to all users who are otherwise unnamed in the ACL file.
- Queue quotas for users are registered in order as the rule file is processed. A user may be assigned any number of queue quota values but only the final value is retained and enforced.
- Queue quotas for groups are applied as queue quotas for each individual user in the group at the time the 'quota queues' line is processed.
- Quota values range from 0 to 65530. A value of zero (0) denies queue creation actions.
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