Add Builder.from() copy constructor to MantisJobClusterMetadataView (#…

…862)

Co-authored-by: ggao <ggao@netflix.com>

Fix test failure for ResourceClusterActorTest (#861)

Co-authored-by: ggao <ggao@netflix.com>

Clean up fields for job cluster creation request (#859)

Co-authored-by: ggao <ggao@netflix.com>

Make scale-up worker additions transactional (#853)

* support proper addworker rollback

* fix followup

* drop sync keyword

* fix CI test failures from prior commits

- testJobSubmitInitalizationFails: actor now stops on submit-time
  init failure, so assert termination instead of expecting a follow-up
  GetJobDetailsResponse.

- testWorkerAcceptedToStartedMsRecordedOnWorkerStatus: SpectatorRegistryFactory.setRegistry
  is a one-shot CAS, so when JobScaleUpDownTests installs a registry first
  this test was reading a different DefaultRegistry instance than the one
  actually wired up. Read the installed registry via getRegistry() instead.

Fix TaskExecutorReconnectionIntegrationTest not stop old actors (#855)

Co-authored-by: ggao <ggao@netflix.com>

Fix TaskExecutorReconnectionIntegrationTest not stop old actors (#855)

Co-authored-by: ggao <ggao@netflix.com>

Fix GET scale rules API stuck on disabled cluster (#851)

Co-authored-by: ggao <ggao@netflix.com>

Fix: idle TEs leak from scheduler pool after disable + reconnect + ex…

…piry (#850)

Healthcheck Endpoint (#843)

Add healthcheck endpoint for JobClusters

remove deprecated job type ctor (#837)