diff --git a/src/applications/drydock/controller/DrydockLeaseViewController.php b/src/applications/drydock/controller/DrydockLeaseViewController.php
index bb748cceee..f37ac1a376 100644
--- a/src/applications/drydock/controller/DrydockLeaseViewController.php
+++ b/src/applications/drydock/controller/DrydockLeaseViewController.php
@@ -1,141 +1,150 @@
 <?php
 
 final class DrydockLeaseViewController extends DrydockLeaseController {
 
   public function handleRequest(AphrontRequest $request) {
     $viewer = $request->getViewer();
     $id = $request->getURIData('id');
 
     $lease = id(new DrydockLeaseQuery())
       ->setViewer($viewer)
       ->withIDs(array($id))
+      ->needUnconsumedCommands(true)
       ->executeOne();
     if (!$lease) {
       return new Aphront404Response();
     }
 
     $lease_uri = $this->getApplicationURI('lease/'.$lease->getID().'/');
 
     $title = pht('Lease %d', $lease->getID());
 
     $header = id(new PHUIHeaderView())
       ->setHeader($title);
 
+    if ($lease->isReleasing()) {
+      $header->setStatus('fa-exclamation-triangle', 'red', pht('Releasing'));
+    }
+
     $actions = $this->buildActionListView($lease);
     $properties = $this->buildPropertyListView($lease, $actions);
 
     $pager = new PHUIPagerView();
     $pager->setURI(new PhutilURI($lease_uri), 'offset');
     $pager->setOffset($request->getInt('offset'));
 
     $logs = id(new DrydockLogQuery())
       ->setViewer($viewer)
       ->withLeaseIDs(array($lease->getID()))
       ->executeWithOffsetPager($pager);
 
     $log_table = id(new DrydockLogListView())
       ->setUser($viewer)
       ->setLogs($logs)
       ->render();
     $log_table->appendChild($pager);
 
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addTextCrumb($title, $lease_uri);
 
     $locks = $this->buildLocksTab($lease->getPHID());
     $commands = $this->buildCommandsTab($lease->getPHID());
 
     $object_box = id(new PHUIObjectBoxView())
       ->setHeader($header)
       ->addPropertyList($properties, pht('Properties'))
       ->addPropertyList($locks, pht('Slot Locks'))
       ->addPropertyList($commands, pht('Commands'));
 
     $log_box = id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Lease Logs'))
       ->setTable($log_table);
 
     return $this->buildApplicationPage(
       array(
         $crumbs,
         $object_box,
         $log_box,
       ),
       array(
         'title' => $title,
       ));
 
   }
 
   private function buildActionListView(DrydockLease $lease) {
     $viewer = $this->getViewer();
 
     $view = id(new PhabricatorActionListView())
       ->setUser($viewer)
       ->setObjectURI($this->getRequest()->getRequestURI())
       ->setObject($lease);
 
     $id = $lease->getID();
 
     $can_release = $lease->canRelease();
+    if ($lease->isReleasing()) {
+      $can_release = false;
+    }
+
     $can_edit = PhabricatorPolicyFilter::hasCapability(
       $viewer,
       $lease,
       PhabricatorPolicyCapability::CAN_EDIT);
 
     $view->addAction(
       id(new PhabricatorActionView())
         ->setName(pht('Release Lease'))
         ->setIcon('fa-times')
         ->setHref($this->getApplicationURI("/lease/{$id}/release/"))
         ->setWorkflow(true)
         ->setDisabled(!$can_release || !$can_edit));
 
     return $view;
   }
 
   private function buildPropertyListView(
     DrydockLease $lease,
     PhabricatorActionListView $actions) {
     $viewer = $this->getViewer();
 
     $view = new PHUIPropertyListView();
     $view->setActionList($actions);
 
     $view->addProperty(
       pht('Status'),
       DrydockLeaseStatus::getNameForStatus($lease->getStatus()));
 
     $view->addProperty(
       pht('Resource Type'),
       $lease->getResourceType());
 
     $resource_phid = $lease->getResourcePHID();
     if ($resource_phid) {
       $resource_display = $viewer->renderHandle($resource_phid);
     } else {
       $resource_display = phutil_tag('em', array(), pht('No Resource'));
     }
     $view->addProperty(pht('Resource'), $resource_display);
 
     $until = $lease->getUntil();
     if ($until) {
       $until_display = phabricator_datetime($until, $viewer);
     } else {
       $until_display = phutil_tag('em', array(), pht('Never'));
     }
     $view->addProperty(pht('Expires'), $until_display);
 
     $attributes = $lease->getAttributes();
     if ($attributes) {
       $view->addSectionHeader(
         pht('Attributes'), 'fa-list-ul');
       foreach ($attributes as $key => $value) {
         $view->addProperty($key, $value);
       }
     }
 
     return $view;
   }
 
 }
diff --git a/src/applications/drydock/controller/DrydockResourceViewController.php b/src/applications/drydock/controller/DrydockResourceViewController.php
index d241b00808..23f81c5225 100644
--- a/src/applications/drydock/controller/DrydockResourceViewController.php
+++ b/src/applications/drydock/controller/DrydockResourceViewController.php
@@ -1,186 +1,195 @@
 <?php
 
 final class DrydockResourceViewController extends DrydockResourceController {
 
   public function handleRequest(AphrontRequest $request) {
     $viewer = $request->getViewer();
     $id = $request->getURIData('id');
 
     $resource = id(new DrydockResourceQuery())
       ->setViewer($viewer)
       ->withIDs(array($id))
+      ->needUnconsumedCommands(true)
       ->executeOne();
     if (!$resource) {
       return new Aphront404Response();
     }
 
     $title = pht('Resource %s %s', $resource->getID(), $resource->getName());
 
     $header = id(new PHUIHeaderView())
       ->setUser($viewer)
       ->setPolicyObject($resource)
       ->setHeader($title);
 
+    if ($resource->isReleasing()) {
+      $header->setStatus('fa-exclamation-triangle', 'red', pht('Releasing'));
+    }
+
     $actions = $this->buildActionListView($resource);
     $properties = $this->buildPropertyListView($resource, $actions);
 
     $resource_uri = 'resource/'.$resource->getID().'/';
     $resource_uri = $this->getApplicationURI($resource_uri);
 
     $pager = new PHUIPagerView();
     $pager->setURI(new PhutilURI($resource_uri), 'offset');
     $pager->setOffset($request->getInt('offset'));
 
     $logs = id(new DrydockLogQuery())
       ->setViewer($viewer)
       ->withResourceIDs(array($resource->getID()))
       ->executeWithOffsetPager($pager);
 
     $log_table = id(new DrydockLogListView())
       ->setUser($viewer)
       ->setLogs($logs)
       ->render();
     $log_table->appendChild($pager);
 
     $crumbs = $this->buildApplicationCrumbs();
     $crumbs->addTextCrumb(pht('Resource %d', $resource->getID()));
 
     $locks = $this->buildLocksTab($resource->getPHID());
     $commands = $this->buildCommandsTab($resource->getPHID());
 
     $object_box = id(new PHUIObjectBoxView())
       ->setHeader($header)
       ->addPropertyList($properties, pht('Properties'))
       ->addPropertyList($locks, pht('Slot Locks'))
       ->addPropertyList($commands, pht('Commands'));
 
     $lease_box = $this->buildLeaseBox($resource);
 
     $log_box = id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Resource Logs'))
       ->setTable($log_table);
 
     return $this->buildApplicationPage(
       array(
         $crumbs,
         $object_box,
         $lease_box,
         $log_box,
       ),
       array(
         'title'   => $title,
       ));
 
   }
 
   private function buildActionListView(DrydockResource $resource) {
     $viewer = $this->getViewer();
 
     $view = id(new PhabricatorActionListView())
       ->setUser($viewer)
       ->setObjectURI($this->getRequest()->getRequestURI())
       ->setObject($resource);
 
     $can_release = $resource->canRelease();
+    if ($resource->isReleasing()) {
+      $can_release = false;
+    }
+
     $can_edit = PhabricatorPolicyFilter::hasCapability(
       $viewer,
       $resource,
       PhabricatorPolicyCapability::CAN_EDIT);
 
     $uri = '/resource/'.$resource->getID().'/release/';
     $uri = $this->getApplicationURI($uri);
 
     $view->addAction(
       id(new PhabricatorActionView())
         ->setHref($uri)
         ->setName(pht('Release Resource'))
         ->setIcon('fa-times')
         ->setWorkflow(true)
         ->setDisabled(!$can_release || !$can_edit));
 
     return $view;
   }
 
   private function buildPropertyListView(
     DrydockResource $resource,
     PhabricatorActionListView $actions) {
     $viewer = $this->getViewer();
 
     $view = id(new PHUIPropertyListView())
       ->setActionList($actions);
 
     $status = $resource->getStatus();
     $status = DrydockResourceStatus::getNameForStatus($status);
 
     $view->addProperty(
       pht('Status'),
       $status);
 
     $until = $resource->getUntil();
     if ($until) {
       $until_display = phabricator_datetime($until, $viewer);
     } else {
       $until_display = phutil_tag('em', array(), pht('Never'));
     }
     $view->addProperty(pht('Expires'), $until_display);
 
     $view->addProperty(
       pht('Resource Type'),
       $resource->getType());
 
     $view->addProperty(
       pht('Blueprint'),
       $viewer->renderHandle($resource->getBlueprintPHID()));
 
     $attributes = $resource->getAttributes();
     if ($attributes) {
       $view->addSectionHeader(
         pht('Attributes'), 'fa-list-ul');
       foreach ($attributes as $key => $value) {
         $view->addProperty($key, $value);
       }
     }
 
     return $view;
   }
 
   private function buildLeaseBox(DrydockResource $resource) {
     $viewer = $this->getViewer();
 
     $leases = id(new DrydockLeaseQuery())
       ->setViewer($viewer)
       ->withResourcePHIDs(array($resource->getPHID()))
       ->withStatuses(
         array(
           DrydockLeaseStatus::STATUS_PENDING,
           DrydockLeaseStatus::STATUS_ACQUIRED,
           DrydockLeaseStatus::STATUS_ACTIVE,
         ))
       ->setLimit(100)
       ->execute();
 
     $id = $resource->getID();
     $leases_uri = "resource/{$id}/leases/query/all/";
     $leases_uri = $this->getApplicationURI($leases_uri);
 
     $lease_header = id(new PHUIHeaderView())
       ->setHeader(pht('Active Leases'))
       ->addActionLink(
         id(new PHUIButtonView())
           ->setTag('a')
           ->setHref($leases_uri)
           ->setIconFont('fa-search')
           ->setText(pht('View All Leases')));
 
     $lease_list = id(new DrydockLeaseListView())
       ->setUser($viewer)
       ->setLeases($leases)
       ->render()
       ->setNoDataString(pht('This resource has no active leases.'));
 
     return id(new PHUIObjectBoxView())
       ->setHeader($lease_header)
       ->setObjectList($lease_list);
   }
 
 }
diff --git a/src/applications/drydock/query/DrydockLeaseQuery.php b/src/applications/drydock/query/DrydockLeaseQuery.php
index c7c770bbea..c5fb41ff56 100644
--- a/src/applications/drydock/query/DrydockLeaseQuery.php
+++ b/src/applications/drydock/query/DrydockLeaseQuery.php
@@ -1,115 +1,139 @@
 <?php
 
 final class DrydockLeaseQuery extends DrydockQuery {
 
   private $ids;
   private $phids;
   private $resourcePHIDs;
   private $statuses;
   private $datasourceQuery;
-  private $needCommands;
+  private $needUnconsumedCommands;
 
   public function withIDs(array $ids) {
     $this->ids = $ids;
     return $this;
   }
 
   public function withPHIDs(array $phids) {
     $this->phids = $phids;
     return $this;
   }
 
   public function withResourcePHIDs(array $phids) {
     $this->resourcePHIDs = $phids;
     return $this;
   }
 
   public function withStatuses(array $statuses) {
     $this->statuses = $statuses;
     return $this;
   }
 
   public function withDatasourceQuery($query) {
     $this->datasourceQuery = $query;
     return $this;
   }
 
+  public function needUnconsumedCommands($need) {
+    $this->needUnconsumedCommands = $need;
+    return $this;
+  }
+
   public function newResultObject() {
     return new DrydockLease();
   }
 
   protected function loadPage() {
     return $this->loadStandardPage($this->newResultObject());
   }
 
   protected function willFilterPage(array $leases) {
     $resource_phids = array_filter(mpull($leases, 'getResourcePHID'));
     if ($resource_phids) {
       $resources = id(new DrydockResourceQuery())
         ->setParentQuery($this)
         ->setViewer($this->getViewer())
         ->withPHIDs(array_unique($resource_phids))
         ->execute();
       $resources = mpull($resources, null, 'getPHID');
     } else {
       $resources = array();
     }
 
     foreach ($leases as $key => $lease) {
       $resource = null;
       if ($lease->getResourcePHID()) {
         $resource = idx($resources, $lease->getResourcePHID());
         if (!$resource) {
           $this->didRejectResult($lease);
           unset($leases[$key]);
           continue;
         }
       }
       $lease->attachResource($resource);
     }
 
     return $leases;
   }
 
+  protected function didFilterPage(array $leases) {
+    if ($this->needUnconsumedCommands) {
+      $commands = id(new DrydockCommandQuery())
+        ->setViewer($this->getViewer())
+        ->setParentQuery($this)
+        ->withTargetPHIDs(mpull($leases, 'getPHID'))
+        ->withConsumed(false)
+        ->execute();
+      $commands = mgroup($commands, 'getTargetPHID');
+
+      foreach ($leases as $lease) {
+        $list = idx($commands, $lease->getPHID(), array());
+        $lease->attachUnconsumedCommands($list);
+      }
+    }
+
+    return $leases;
+  }
+
   protected function buildWhereClauseParts(AphrontDatabaseConnection $conn) {
     $where = parent::buildWhereClauseParts($conn);
 
     if ($this->resourcePHIDs !== null) {
       $where[] = qsprintf(
         $conn,
         'resourcePHID IN (%Ls)',
         $this->resourcePHIDs);
     }
 
     if ($this->ids !== null) {
       $where[] = qsprintf(
         $conn,
         'id IN (%Ld)',
         $this->ids);
     }
 
     if ($this->phids !== null) {
       $where[] = qsprintf(
         $conn,
         'phid IN (%Ls)',
         $this->phids);
     }
 
     if ($this->statuses !== null) {
       $where[] = qsprintf(
         $conn,
         'status IN (%Ls)',
         $this->statuses);
     }
 
     if ($this->datasourceQuery !== null) {
       $where[] = qsprintf(
         $conn,
         'id = %d',
         (int)$this->datasourceQuery);
     }
 
     return $where;
   }
 
 }
diff --git a/src/applications/drydock/query/DrydockResourceQuery.php b/src/applications/drydock/query/DrydockResourceQuery.php
index d15b737141..c477da20b5 100644
--- a/src/applications/drydock/query/DrydockResourceQuery.php
+++ b/src/applications/drydock/query/DrydockResourceQuery.php
@@ -1,120 +1,145 @@
 <?php
 
 final class DrydockResourceQuery extends DrydockQuery {
 
   private $ids;
   private $phids;
   private $statuses;
   private $types;
   private $blueprintPHIDs;
   private $datasourceQuery;
+  private $needUnconsumedCommands;
 
   public function withIDs(array $ids) {
     $this->ids = $ids;
     return $this;
   }
 
   public function withPHIDs(array $phids) {
     $this->phids = $phids;
     return $this;
   }
 
   public function withTypes(array $types) {
     $this->types = $types;
     return $this;
   }
 
   public function withStatuses(array $statuses) {
     $this->statuses = $statuses;
     return $this;
   }
 
   public function withBlueprintPHIDs(array $blueprint_phids) {
     $this->blueprintPHIDs = $blueprint_phids;
     return $this;
   }
 
   public function withDatasourceQuery($query) {
     $this->datasourceQuery = $query;
     return $this;
   }
 
+  public function needUnconsumedCommands($need) {
+    $this->needUnconsumedCommands = $need;
+    return $this;
+  }
+
   public function newResultObject() {
     return new DrydockResource();
   }
 
   protected function loadPage() {
     return $this->loadStandardPage($this->newResultObject());
   }
 
   protected function willFilterPage(array $resources) {
     $blueprint_phids = mpull($resources, 'getBlueprintPHID');
 
     $blueprints = id(new DrydockBlueprintQuery())
       ->setViewer($this->getViewer())
       ->withPHIDs($blueprint_phids)
       ->execute();
     $blueprints = mpull($blueprints, null, 'getPHID');
 
     foreach ($resources as $key => $resource) {
       $blueprint = idx($blueprints, $resource->getBlueprintPHID());
       if (!$blueprint) {
         $this->didRejectResult($resource);
         unset($resources[$key]);
         continue;
       }
       $resource->attachBlueprint($blueprint);
     }
 
     return $resources;
   }
 
+  protected function didFilterPage(array $resources) {
+    if ($this->needUnconsumedCommands) {
+      $commands = id(new DrydockCommandQuery())
+        ->setViewer($this->getViewer())
+        ->setParentQuery($this)
+        ->withTargetPHIDs(mpull($resources, 'getPHID'))
+        ->withConsumed(false)
+        ->execute();
+      $commands = mgroup($commands, 'getTargetPHID');
+
+      foreach ($resources as $resource) {
+        $list = idx($commands, $resource->getPHID(), array());
+        $resource->attachUnconsumedCommands($list);
+      }
+    }
+
+    return $resources;
+  }
+
   protected function buildWhereClauseParts(AphrontDatabaseConnection $conn) {
     $where = parent::buildWhereClauseParts($conn);
 
     if ($this->ids !== null) {
       $where[] = qsprintf(
         $conn,
         'id IN (%Ld)',
         $this->ids);
     }
 
     if ($this->phids !== null) {
       $where[] = qsprintf(
         $conn,
         'phid IN (%Ls)',
         $this->phids);
     }
 
     if ($this->types !== null) {
       $where[] = qsprintf(
         $conn,
         'type IN (%Ls)',
         $this->types);
     }
 
     if ($this->statuses !== null) {
       $where[] = qsprintf(
         $conn,
         'status IN (%Ls)',
         $this->statuses);
     }
 
     if ($this->blueprintPHIDs !== null) {
       $where[] = qsprintf(
         $conn,
         'blueprintPHID IN (%Ls)',
         $this->blueprintPHIDs);
     }
 
     if ($this->datasourceQuery !== null) {
       $where[] = qsprintf(
         $conn,
         'name LIKE %>',
         $this->datasourceQuery);
     }
 
     return $where;
   }
 
 }
diff --git a/src/applications/drydock/storage/DrydockLease.php b/src/applications/drydock/storage/DrydockLease.php
index bb65b982b6..c5834f0136 100644
--- a/src/applications/drydock/storage/DrydockLease.php
+++ b/src/applications/drydock/storage/DrydockLease.php
@@ -1,375 +1,396 @@
 <?php
 
 final class DrydockLease extends DrydockDAO
   implements PhabricatorPolicyInterface {
 
   protected $resourcePHID;
   protected $resourceType;
   protected $until;
   protected $ownerPHID;
   protected $attributes = array();
   protected $status = DrydockLeaseStatus::STATUS_PENDING;
 
   private $resource = self::ATTACHABLE;
+  private $unconsumedCommands = self::ATTACHABLE;
+
   private $releaseOnDestruction;
   private $isAcquired = false;
   private $isActivated = false;
   private $activateWhenAcquired = false;
   private $slotLocks = array();
 
   /**
    * Flag this lease to be released when its destructor is called. This is
    * mostly useful if you have a script which acquires, uses, and then releases
    * a lease, as you don't need to explicitly handle exceptions to properly
    * release the lease.
    */
   public function releaseOnDestruction() {
     $this->releaseOnDestruction = true;
     return $this;
   }
 
   public function __destruct() {
     if (!$this->releaseOnDestruction) {
       return;
     }
 
     if (!$this->canRelease()) {
       return;
     }
 
     $actor = PhabricatorUser::getOmnipotentUser();
     $drydock_phid = id(new PhabricatorDrydockApplication())->getPHID();
 
     $command = DrydockCommand::initializeNewCommand($actor)
       ->setTargetPHID($this->getPHID())
       ->setAuthorPHID($drydock_phid)
       ->setCommand(DrydockCommand::COMMAND_RELEASE)
       ->save();
 
     $this->scheduleUpdate();
   }
 
   public function getLeaseName() {
     return pht('Lease %d', $this->getID());
   }
 
   protected function getConfiguration() {
     return array(
       self::CONFIG_AUX_PHID => true,
       self::CONFIG_SERIALIZATION => array(
         'attributes'    => self::SERIALIZATION_JSON,
       ),
       self::CONFIG_COLUMN_SCHEMA => array(
         'status' => 'text32',
         'until' => 'epoch?',
         'resourceType' => 'text128',
         'ownerPHID' => 'phid?',
         'resourcePHID' => 'phid?',
       ),
       self::CONFIG_KEY_SCHEMA => array(
         'key_resource' => array(
           'columns' => array('resourcePHID', 'status'),
         ),
       ),
     ) + parent::getConfiguration();
   }
 
   public function setAttribute($key, $value) {
     $this->attributes[$key] = $value;
     return $this;
   }
 
   public function getAttribute($key, $default = null) {
     return idx($this->attributes, $key, $default);
   }
 
   public function generatePHID() {
     return PhabricatorPHID::generateNewPHID(DrydockLeasePHIDType::TYPECONST);
   }
 
   public function getInterface($type) {
     return $this->getResource()->getInterface($this, $type);
   }
 
   public function getResource() {
     return $this->assertAttached($this->resource);
   }
 
   public function attachResource(DrydockResource $resource = null) {
     $this->resource = $resource;
     return $this;
   }
 
   public function hasAttachedResource() {
     return ($this->resource !== null);
   }
 
+  public function getUnconsumedCommands() {
+    return $this->assertAttached($this->unconsumedCommands);
+  }
+
+  public function attachUnconsumedCommands(array $commands) {
+    $this->unconsumedCommands = $commands;
+    return $this;
+  }
+
+  public function isReleasing() {
+    foreach ($this->getUnconsumedCommands() as $command) {
+      if ($command->getCommand() == DrydockCommand::COMMAND_RELEASE) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
   public function queueForActivation() {
     if ($this->getID()) {
       throw new Exception(
         pht('Only new leases may be queued for activation!'));
     }
 
     $this
       ->setStatus(DrydockLeaseStatus::STATUS_PENDING)
       ->save();
 
     $task = PhabricatorWorker::scheduleTask(
       'DrydockAllocatorWorker',
       array(
         'leasePHID' => $this->getPHID(),
       ),
       array(
         'objectPHID' => $this->getPHID(),
       ));
 
     return $this;
   }
 
   public function isActivating() {
     switch ($this->getStatus()) {
       case DrydockLeaseStatus::STATUS_PENDING:
       case DrydockLeaseStatus::STATUS_ACQUIRED:
         return true;
     }
 
     return false;
   }
 
   public function isActive() {
     switch ($this->getStatus()) {
       case DrydockLeaseStatus::STATUS_ACTIVE:
         return true;
     }
 
     return false;
   }
 
   public function waitUntilActive() {
     while (true) {
       $lease = $this->reload();
       if (!$lease) {
         throw new Exception(pht('Failed to reload lease.'));
       }
 
       $status = $lease->getStatus();
 
       switch ($status) {
         case DrydockLeaseStatus::STATUS_ACTIVE:
           return;
         case DrydockLeaseStatus::STATUS_RELEASED:
           throw new Exception(pht('Lease has already been released!'));
         case DrydockLeaseStatus::STATUS_DESTROYED:
           throw new Exception(pht('Lease has already been destroyed!'));
         case DrydockLeaseStatus::STATUS_BROKEN:
           throw new Exception(pht('Lease has been broken!'));
         case DrydockLeaseStatus::STATUS_PENDING:
         case DrydockLeaseStatus::STATUS_ACQUIRED:
           break;
         default:
           throw new Exception(
             pht(
               'Lease has unknown status "%s".',
               $status));
       }
 
       sleep(1);
     }
   }
 
   public function setActivateWhenAcquired($activate) {
     $this->activateWhenAcquired = true;
     return $this;
   }
 
   public function needSlotLock($key) {
     $this->slotLocks[] = $key;
     return $this;
   }
 
   public function acquireOnResource(DrydockResource $resource) {
     $expect_status = DrydockLeaseStatus::STATUS_PENDING;
     $actual_status = $this->getStatus();
     if ($actual_status != $expect_status) {
       throw new Exception(
         pht(
           'Trying to acquire a lease on a resource which is in the wrong '.
           'state: status must be "%s", actually "%s".',
           $expect_status,
           $actual_status));
     }
 
     if ($this->activateWhenAcquired) {
       $new_status = DrydockLeaseStatus::STATUS_ACTIVE;
     } else {
       $new_status = DrydockLeaseStatus::STATUS_ACQUIRED;
     }
 
     if ($new_status == DrydockLeaseStatus::STATUS_ACTIVE) {
       if ($resource->getStatus() == DrydockResourceStatus::STATUS_PENDING) {
         throw new Exception(
           pht(
             'Trying to acquire an active lease on a pending resource. '.
             'You can not immediately activate leases on resources which '.
             'need time to start up.'));
       }
     }
 
     $this->openTransaction();
 
       $this
         ->setResourcePHID($resource->getPHID())
         ->setStatus($new_status)
         ->save();
 
       DrydockSlotLock::acquireLocks($this->getPHID(), $this->slotLocks);
       $this->slotLocks = array();
 
     $this->saveTransaction();
 
     $this->isAcquired = true;
 
     if ($new_status == DrydockLeaseStatus::STATUS_ACTIVE) {
       $this->didActivate();
     }
 
     return $this;
   }
 
   public function isAcquiredLease() {
     return $this->isAcquired;
   }
 
   public function activateOnResource(DrydockResource $resource) {
     $expect_status = DrydockLeaseStatus::STATUS_ACQUIRED;
     $actual_status = $this->getStatus();
     if ($actual_status != $expect_status) {
       throw new Exception(
         pht(
           'Trying to activate a lease which has the wrong status: status '.
           'must be "%s", actually "%s".',
           $expect_status,
           $actual_status));
     }
 
     if ($resource->getStatus() == DrydockResourceStatus::STATUS_PENDING) {
       // TODO: Be stricter about this?
       throw new Exception(
         pht(
           'Trying to activate a lease on a pending resource.'));
     }
 
     $this->openTransaction();
 
       $this
         ->setStatus(DrydockLeaseStatus::STATUS_ACTIVE)
         ->save();
 
       DrydockSlotLock::acquireLocks($this->getPHID(), $this->slotLocks);
       $this->slotLocks = array();
 
     $this->saveTransaction();
 
     $this->isActivated = true;
 
     $this->didActivate();
 
     return $this;
   }
 
   public function isActivatedLease() {
     return $this->isActivated;
   }
 
   public function canRelease() {
     if (!$this->getID()) {
       return false;
     }
 
     switch ($this->getStatus()) {
       case DrydockLeaseStatus::STATUS_RELEASED:
       case DrydockLeaseStatus::STATUS_DESTROYED:
         return false;
       default:
         return true;
     }
   }
 
   public function canUpdate() {
     switch ($this->getStatus()) {
       case DrydockLeaseStatus::STATUS_ACTIVE:
         return true;
       default:
         return false;
     }
   }
 
   public function scheduleUpdate($epoch = null) {
     PhabricatorWorker::scheduleTask(
       'DrydockLeaseUpdateWorker',
       array(
         'leasePHID' => $this->getPHID(),
         'isExpireTask' => ($epoch !== null),
       ),
       array(
         'objectPHID' => $this->getPHID(),
         'delayUntil' => $epoch,
       ));
   }
 
   private function didActivate() {
     $viewer = PhabricatorUser::getOmnipotentUser();
     $need_update = false;
 
     $commands = id(new DrydockCommandQuery())
       ->setViewer($viewer)
       ->withTargetPHIDs(array($this->getPHID()))
       ->withConsumed(false)
       ->execute();
     if ($commands) {
       $need_update = true;
     }
 
     if ($need_update) {
       $this->scheduleUpdate();
     }
 
     $expires = $this->getUntil();
     if ($expires) {
       $this->scheduleUpdate($expires);
     }
   }
 
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 
 
   public function getCapabilities() {
     return array(
       PhabricatorPolicyCapability::CAN_VIEW,
       PhabricatorPolicyCapability::CAN_EDIT,
     );
   }
 
   public function getPolicy($capability) {
     if ($this->getResource()) {
       return $this->getResource()->getPolicy($capability);
     }
 
     // TODO: Implement reasonable policies.
 
     return PhabricatorPolicies::getMostOpenPolicy();
   }
 
   public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
     if ($this->getResource()) {
       return $this->getResource()->hasAutomaticCapability($capability, $viewer);
     }
     return false;
   }
 
   public function describeAutomaticCapability($capability) {
     return pht('Leases inherit policies from the resources they lease.');
   }
 
 }
diff --git a/src/applications/drydock/storage/DrydockResource.php b/src/applications/drydock/storage/DrydockResource.php
index f46383a84c..ab968c2249 100644
--- a/src/applications/drydock/storage/DrydockResource.php
+++ b/src/applications/drydock/storage/DrydockResource.php
@@ -1,262 +1,282 @@
 <?php
 
 final class DrydockResource extends DrydockDAO
   implements PhabricatorPolicyInterface {
 
   protected $id;
   protected $phid;
   protected $blueprintPHID;
   protected $status;
   protected $until;
-
   protected $type;
   protected $name;
   protected $attributes   = array();
   protected $capabilities = array();
   protected $ownerPHID;
 
   private $blueprint = self::ATTACHABLE;
+  private $unconsumedCommands = self::ATTACHABLE;
+
   private $isAllocated = false;
   private $isActivated = false;
   private $activateWhenAllocated = false;
   private $slotLocks = array();
 
   protected function getConfiguration() {
     return array(
       self::CONFIG_AUX_PHID => true,
       self::CONFIG_SERIALIZATION => array(
         'attributes'    => self::SERIALIZATION_JSON,
         'capabilities'  => self::SERIALIZATION_JSON,
       ),
       self::CONFIG_COLUMN_SCHEMA => array(
         'name' => 'text255',
         'ownerPHID' => 'phid?',
         'status' => 'text32',
         'type' => 'text64',
         'until' => 'epoch?',
       ),
       self::CONFIG_KEY_SCHEMA => array(
         'key_type' => array(
           'columns' => array('type', 'status'),
         ),
         'key_blueprint' => array(
           'columns' => array('blueprintPHID', 'status'),
         ),
       ),
     ) + parent::getConfiguration();
   }
 
   public function generatePHID() {
     return PhabricatorPHID::generateNewPHID(DrydockResourcePHIDType::TYPECONST);
   }
 
   public function getAttribute($key, $default = null) {
     return idx($this->attributes, $key, $default);
   }
 
   public function getAttributesForTypeSpec(array $attribute_names) {
     return array_select_keys($this->attributes, $attribute_names);
   }
 
   public function setAttribute($key, $value) {
     $this->attributes[$key] = $value;
     return $this;
   }
 
   public function getCapability($key, $default = null) {
     return idx($this->capbilities, $key, $default);
   }
 
   public function getInterface(DrydockLease $lease, $type) {
     return $this->getBlueprint()->getInterface($this, $lease, $type);
   }
 
   public function getBlueprint() {
     return $this->assertAttached($this->blueprint);
   }
 
   public function attachBlueprint(DrydockBlueprint $blueprint) {
     $this->blueprint = $blueprint;
     return $this;
   }
 
+  public function getUnconsumedCommands() {
+    return $this->assertAttached($this->unconsumedCommands);
+  }
+
+  public function attachUnconsumedCommands(array $commands) {
+    $this->unconsumedCommands = $commands;
+    return $this;
+  }
+
+  public function isReleasing() {
+    foreach ($this->getUnconsumedCommands() as $command) {
+      if ($command->getCommand() == DrydockCommand::COMMAND_RELEASE) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
   public function setActivateWhenAllocated($activate) {
     $this->activateWhenAllocated = $activate;
     return $this;
   }
 
   public function needSlotLock($key) {
     $this->slotLocks[] = $key;
     return $this;
   }
 
   public function allocateResource() {
     if ($this->getID()) {
       throw new Exception(
         pht(
           'Trying to allocate a resource which has already been persisted. '.
           'Only new resources may be allocated.'));
     }
 
     $expect_status = DrydockResourceStatus::STATUS_PENDING;
     $actual_status = $this->getStatus();
     if ($actual_status != $expect_status) {
       throw new Exception(
         pht(
           'Trying to allocate a resource from the wrong status. Status must '.
           'be "%s", actually "%s".',
           $expect_status,
           $actual_status));
     }
 
     if ($this->activateWhenAllocated) {
       $new_status = DrydockResourceStatus::STATUS_ACTIVE;
     } else {
       $new_status = DrydockResourceStatus::STATUS_PENDING;
     }
 
     $this->openTransaction();
 
       $this
         ->setStatus($new_status)
         ->save();
 
       DrydockSlotLock::acquireLocks($this->getPHID(), $this->slotLocks);
       $this->slotLocks = array();
 
     $this->saveTransaction();
 
     $this->isAllocated = true;
 
     if ($new_status == DrydockResourceStatus::STATUS_ACTIVE) {
       $this->didActivate();
     }
 
     return $this;
   }
 
   public function isAllocatedResource() {
     return $this->isAllocated;
   }
 
   public function activateResource() {
     if (!$this->getID()) {
       throw new Exception(
         pht(
           'Trying to activate a resource which has not yet been persisted.'));
     }
 
     $expect_status = DrydockResourceStatus::STATUS_PENDING;
     $actual_status = $this->getStatus();
     if ($actual_status != $expect_status) {
       throw new Exception(
         pht(
           'Trying to activate a resource from the wrong status. Status must '.
           'be "%s", actually "%s".',
           $expect_status,
           $actual_status));
     }
 
     $this->openTransaction();
 
       $this
         ->setStatus(DrydockResourceStatus::STATUS_ACTIVE)
         ->save();
 
       DrydockSlotLock::acquireLocks($this->getPHID(), $this->slotLocks);
       $this->slotLocks = array();
 
     $this->saveTransaction();
 
     $this->isActivated = true;
 
     $this->didActivate();
 
     return $this;
   }
 
   public function isActivatedResource() {
     return $this->isActivated;
   }
 
   public function canRelease() {
     switch ($this->getStatus()) {
       case DrydockResourceStatus::STATUS_RELEASED:
       case DrydockResourceStatus::STATUS_DESTROYED:
         return false;
       default:
         return true;
     }
   }
 
   public function scheduleUpdate($epoch = null) {
     PhabricatorWorker::scheduleTask(
       'DrydockResourceUpdateWorker',
       array(
         'resourcePHID' => $this->getPHID(),
         'isExpireTask' => ($epoch !== null),
       ),
       array(
         'objectPHID' => $this->getPHID(),
         'delayUntil' => $epoch,
       ));
   }
 
   private function didActivate() {
     $viewer = PhabricatorUser::getOmnipotentUser();
 
     $need_update = false;
 
     $commands = id(new DrydockCommandQuery())
       ->setViewer($viewer)
       ->withTargetPHIDs(array($this->getPHID()))
       ->withConsumed(false)
       ->execute();
     if ($commands) {
       $need_update = true;
     }
 
     if ($need_update) {
       $this->scheduleUpdate();
     }
 
     $expires = $this->getUntil();
     if ($expires) {
       $this->scheduleUpdate($expires);
     }
   }
 
   public function canUpdate() {
     switch ($this->getStatus()) {
       case DrydockResourceStatus::STATUS_ACTIVE:
         return true;
       default:
         return false;
     }
   }
 
 
 /* -(  PhabricatorPolicyInterface  )----------------------------------------- */
 
 
   public function getCapabilities() {
     return array(
       PhabricatorPolicyCapability::CAN_VIEW,
       PhabricatorPolicyCapability::CAN_EDIT,
     );
   }
 
   public function getPolicy($capability) {
     return $this->getBlueprint()->getPolicy($capability);
   }
 
   public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
     return $this->getBlueprint()->hasAutomaticCapability(
       $capability,
       $viewer);
   }
 
   public function describeAutomaticCapability($capability) {
     return pht('Resources inherit the policies of their blueprints.');
   }
 }