Revert "feat: support graceful scale-down for AlluxioRuntime" (#5805)

api/v1alpha1/status.go

@@ -191,8 +191,6 @@ const (
 	RuntimeFusesScaledIn RuntimeConditionType = "FusesScaledIn"
 	// RuntimeFusesScaledOut means the fuses of runtime just scaled out
 	RuntimeFusesScaledOut RuntimeConditionType = "FusesScaledOut"
-	// RuntimeWorkerDecommissioning means the runtime is draining workers ahead of a scale-down
-	RuntimeWorkerDecommissioning RuntimeConditionType = "WorkerDecommissioning"
 )
 
 const (
@@ -216,8 +214,6 @@ const (
 	RuntimeFusesScaledInReason = "Fuses scaled in"
 	// RuntimeFusesScaledInReason means the fuses of runtime just scaled out
 	RuntimeFusesScaledOutReason = "Fuses scaled out"
-	// RuntimeWorkerDecommissioningReason means workers are being decommissioned ahead of a scale-down
-	RuntimeWorkerDecommissioningReason = "Workers are being decommissioned"
 )
 
 // Condition describes the state of the cache at a certain point.

pkg/ddc/alluxio/const.go

@@ -16,8 +16,6 @@ limitations under the License.
 
 package alluxio
 
-import "time"
-
 const (
 	// NON_NATIVE_MOUNT_DATA_NAME also used in master 'statefulset.yaml' and config 'alluxio-mount.conf.yaml'
 	NON_NATIVE_MOUNT_DATA_NAME = "mount.info"
@@ -59,16 +57,6 @@ const (
 	defaultGracefulShutdownLimits       int32 = 3
 	defaultCleanCacheGracePeriodSeconds int32 = 60
 
-	// defaultWorkerRPCPort is the Alluxio worker Thrift RPC port used when the
-	// runtime spec does not override alluxio.worker.rpc.port.
-	defaultWorkerRPCPort = 29999
-
 	MountConfigStorage   = "ALLUXIO_MOUNT_CONFIG_STORAGE"
 	ConfigmapStorageName = "configmap"
-
-	// defaultWorkerDecommissionDeadline bounds how long the engine keeps
-	// retrying a stuck worker drain (e.g. an unhealthy master, unreplicable
-	// blocks) before forcing the scale-down to proceed anyway, rather than
-	// stalling on every reconcile indefinitely.
-	defaultWorkerDecommissionDeadline = 10 * time.Minute
 )