epriestley 7168d8edd9 Make Drydock reclaim unused resources when it reaches a resource limit ... Summary: Fixes T9994. Currently, when Drydock can't allocate a new resource because some limit has been reached, it waits patiently for a resource to become available. It is possible that no resource will ever become available. Particularly with "Working Copy" resources, the new lease may want a copy of `rB`, but the resource may already be maxed out on `rA`. Right now, no process exists to automatically reclaim the unused `rA`. When we encounter this situation, try to reclaim one of the other resources if it is just sitting there unused. Specifically: - Add a "reclaim" command which means "release this resource //if// it is completely unused". - Add a `bin/drydock reclaim` to send this command to every active resource. - When we try to acquire a resource and can't, but only because of some kind of limit / utilization problem, try to release an unused resource to free up some room. Test Plan: - Set "Working Copy" resource limit to 1. - Ran "Test Configuration" in `rA`, which worked. - Ran "Test Configuration" in `rB`, which hung forever. - Applied patch. - Ran "Test Configuration" in `rB`, saw it reclaim the `rA` resource, use the slot, then succeed. - Ran "Test Configuration" in `rA` again, saw it grab the slot back. - Ran `bin/drydock reclaim` and saw it reclaim a bunch of old orphaned resources. Reviewers: chad Reviewed By: chad Maniphest Tasks: T9994 Differential Revision: https://secure.phabricator.com/D14819		2015-12-18 11:55:51 -08:00
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DrydockManagementCommandWorkflow.php	Allow AlmanacHost blueprints to build a meaningful CommandInterface	2015-09-21 04:46:02 -07:00
DrydockManagementLeaseWorkflow.php	Use Drydock authorizations when acquiring leases	2015-10-12 17:02:35 -07:00
DrydockManagementReclaimWorkflow.php	Make Drydock reclaim unused resources when it reaches a resource limit	2015-12-18 11:55:51 -08:00
DrydockManagementReleaseLeaseWorkflow.php	Add a command queue to Drydock to manage lease/resource release	2015-09-23 07:42:08 -07:00
DrydockManagementReleaseResourceWorkflow.php	Add a command queue to Drydock to manage lease/resource release	2015-09-23 07:42:08 -07:00
DrydockManagementUpdateLeaseWorkflow.php	Add a command queue to Drydock to manage lease/resource release	2015-09-23 07:42:08 -07:00
DrydockManagementUpdateResourceWorkflow.php	Add a command queue to Drydock to manage lease/resource release	2015-09-23 07:42:08 -07:00
DrydockManagementWorkflow.php	Apply some autofix linter rules	2014-09-10 06:55:05 +10:00