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D14212.id34322.diff
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diff --git a/src/applications/drydock/worker/DrydockLeaseUpdateWorker.php b/src/applications/drydock/worker/DrydockLeaseUpdateWorker.php
--- a/src/applications/drydock/worker/DrydockLeaseUpdateWorker.php
+++ b/src/applications/drydock/worker/DrydockLeaseUpdateWorker.php
@@ -7,6 +7,7 @@
* @task acquire Acquiring Leases
* @task activate Activating Leases
* @task release Releasing Leases
+ * @task break Breaking Leases
* @task destroy Destroying Leases
*/
final class DrydockLeaseUpdateWorker extends DrydockWorker {
@@ -22,7 +23,7 @@
try {
$lease = $this->loadLease($lease_phid);
- $this->updateLease($lease);
+ $this->handleUpdate($lease);
} catch (Exception $ex) {
$lock->unlock();
throw $ex;
@@ -38,6 +39,22 @@
/**
* @task update
*/
+ private function handleUpdate(DrydockLease $lease) {
+ try {
+ $this->updateLease($lease);
+ } catch (Exception $ex) {
+ if ($this->isTemporaryException($ex)) {
+ $this->yieldLease($lease, $ex);
+ } else {
+ $this->breakLease($lease, $ex);
+ }
+ }
+ }
+
+
+ /**
+ * @task update
+ */
private function updateLease(DrydockLease $lease) {
$this->processLeaseCommands($lease);
@@ -64,6 +81,22 @@
}
+ /**
+ * @task update
+ */
+ private function yieldLease(DrydockLease $lease, Exception $ex) {
+ $duration = $this->getYieldDurationFromException($ex);
+
+ $lease->logEvent(
+ DrydockLeaseActivationYieldLogType::LOGCONST,
+ array(
+ 'duration' => $duration,
+ ));
+
+ throw new PhabricatorWorkerYieldException($duration);
+ }
+
+
/* -( Processing Commands )------------------------------------------------ */
@@ -145,10 +178,13 @@
// satisfy the lease, just not right now. This is a temporary failure,
// and we expect allocation to succeed eventually.
if (!$usable_blueprints) {
- // TODO: More formal temporary failure here. We should retry this
- // "soon" but not "immediately".
- throw new Exception(
- pht('No blueprints have space to allocate a resource right now.'));
+ $lease->logEvent(
+ DrydockLeaseWaitingForResourcesLogType::LOGCONST,
+ array(
+ 'blueprintPHIDs' => mpull($blueprints, 'getPHID'),
+ ));
+
+ throw new PhabricatorWorkerYieldException(15);
}
$usable_blueprints = $this->rankBlueprints($usable_blueprints, $lease);
@@ -167,10 +203,6 @@
}
if (!$resources) {
- // TODO: We should distinguish between temporary and permament failures
- // here. If any blueprint failed temporarily, retry "soon". If none
- // of these failures were temporary, maybe this should be a permanent
- // failure?
throw new PhutilAggregateException(
pht(
'All blueprints failed to allocate a suitable new resource when '.
@@ -200,10 +232,6 @@
}
if (!$allocated) {
- // TODO: We should distinguish between temporary and permanent failures
- // here. If any failures were temporary (specifically, failed to acquire
- // locks)
-
throw new PhutilAggregateException(
pht(
'Unable to acquire lease "%s" on any resouce.',
@@ -471,8 +499,6 @@
$lease_type = $lease->getResourceType();
if ($resource_type !== $lease_type) {
- // TODO: Destroy the resource here?
-
throw new Exception(
pht(
'Blueprint "%s" (of type "%s") is not properly implemented: it '.
@@ -549,7 +575,6 @@
$resource_phid = $resource->getPHID();
if ($lease_phid !== $resource_phid) {
- // TODO: Destroy the lease?
throw new Exception(
pht(
'Blueprint "%s" (of type "%s") is not properly implemented: it '.
@@ -570,20 +595,18 @@
private function activateLease(DrydockLease $lease) {
$resource = $lease->getResource();
if (!$resource) {
- throw new PhabricatorWorkerPermanentFailureException(
+ throw new Exception(
pht('Trying to activate lease with no resource.'));
}
$resource_status = $resource->getStatus();
if ($resource_status == DrydockResourceStatus::STATUS_PENDING) {
- // TODO: This is explicitly a temporary failure -- we are waiting for
- // the resource to come up.
- throw new Exception(pht('Resource still activating.'));
+ throw new PhabricatorWorkerYieldException(15);
}
if ($resource_status != DrydockResourceStatus::STATUS_ACTIVE) {
- throw new PhabricatorWorkerPermanentFailureException(
+ throw new Exception(
pht(
'Trying to activate lease on a dead resource (in status "%s").',
$resource_status));
@@ -630,14 +653,9 @@
* @task release
*/
private function releaseLease(DrydockLease $lease) {
- $lease->openTransaction();
- $lease
- ->setStatus(DrydockLeaseStatus::STATUS_RELEASED)
- ->save();
-
- // TODO: Hold slot locks until destruction?
- DrydockSlotLock::releaseLocks($lease->getPHID());
- $lease->saveTransaction();
+ $lease
+ ->setStatus(DrydockLeaseStatus::STATUS_RELEASED)
+ ->save();
$lease->logEvent(DrydockLeaseReleasedLogType::LOGCONST);
@@ -650,6 +668,45 @@
}
+/* -( Breaking Leases )---------------------------------------------------- */
+
+
+ /**
+ * @task break
+ */
+ protected function breakLease(DrydockLease $lease, Exception $ex) {
+ switch ($lease->getStatus()) {
+ case DrydockLeaseStatus::STATUS_BROKEN:
+ case DrydockLeaseStatus::STATUS_RELEASED:
+ case DrydockLeaseStatus::STATUS_DESTROYED:
+ throw new PhutilProxyException(
+ pht(
+ 'Unexpected failure while destroying lease ("%s").',
+ $lease->getPHID()),
+ $ex);
+ }
+
+ $lease
+ ->setStatus(DrydockLeaseStatus::STATUS_BROKEN)
+ ->save();
+
+ $lease->scheduleDestruction();
+
+ $lease->logEvent(
+ DrydockLeaseActivationFailureLogType::LOGCONST,
+ array(
+ 'class' => get_class($ex),
+ 'message' => $ex->getMessage(),
+ ));
+
+ throw new PhabricatorWorkerPermanentFailureException(
+ pht(
+ 'Permanent failure while activating lease ("%s"): %s',
+ $lease->getPHID(),
+ $ex->getMessage()));
+ }
+
+
/* -( Destroying Leases )-------------------------------------------------- */
@@ -662,6 +719,8 @@
$blueprint->destroyLease($resource, $lease);
+ DrydockSlotLock::releaseLocks($lease->getPHID());
+
$lease
->setStatus(DrydockLeaseStatus::STATUS_DESTROYED)
->save();

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