diff --git a/Makefile b/Makefile
index 956318ed0e..64e02fa93d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,8 @@
 BIN_DIR=_output/bin
-export IMAGE=volcano
-export TAG = 1.0
+IMAGE=volcano
+TAG = 0.1
+
+.EXPORT_ALL_VARIABLES:
 
 all: controllers scheduler cli admission
 
diff --git a/hack/run-e2e-kind.sh b/hack/run-e2e-kind.sh
index 8c1c667e85..f67f377ec2 100755
--- a/hack/run-e2e-kind.sh
+++ b/hack/run-e2e-kind.sh
@@ -4,6 +4,7 @@ export VK_ROOT=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/..
 export VK_BIN=${VK_ROOT}/_output/bin
 export LOG_LEVEL=3
 export SHOW_VOLCANO_LOGS=${SHOW_VOLCANO_LOGS:-1}
+export CLEANUP_CLUSTER=${CLEANUP_CLUSTER:-1}
 
 if [[ "${CLUSTER_NAME}xxx" != "xxx" ]];then
   export CLUSTER_CONTEXT="--name ${CLUSTER_NAME}"
@@ -61,7 +62,7 @@ function install-volcano {
   helm gen-admission-secret --service integration-admission-service --namespace kube-system
 
   echo "Install volcano chart"
-  helm install installer/chart/volcano --namespace kube-system --name integration --kubeconfig ${KUBECONFIG}
+  helm install installer/chart/volcano --namespace kube-system --name integration --kubeconfig ${KUBECONFIG} --set basic.image_tag_version=${TAG}
 }
 
 function uninstall-volcano {
@@ -98,8 +99,9 @@ Disable displaying volcano component logs:
   exit 0
 fi
 
-
-trap cleanup EXIT
+if [[ $CLEANUP_CLUSTER -eq 1 ]]; then
+    trap cleanup EXIT
+fi
 
 
 kind-up-cluster
diff --git a/installer/chart/volcano/config/kube-batch.conf b/installer/chart/volcano/config/kube-batch.conf
index 25df16501b..768db3ef4d 100644
--- a/installer/chart/volcano/config/kube-batch.conf
+++ b/installer/chart/volcano/config/kube-batch.conf
@@ -3,7 +3,9 @@ tiers:
 - plugins:
   - name: priority
   - name: gang
+  - name: conformance
 - plugins:
   - name: drf
   - name: predicates
   - name: proportion
+  - name: nodeorder
diff --git a/pkg/admission/admit_job.go b/pkg/admission/admit_job.go
index e28e2dafcc..eb46b79751 100644
--- a/pkg/admission/admit_job.go
+++ b/pkg/admission/admit_job.go
@@ -69,11 +69,6 @@ func validateJob(job v1alpha1.Job, reviewResponse *v1beta1.AdmissionResponse) st
 	taskNames := map[string]string{}
 	var totalReplicas int32
 
-	if job.Status.Version != 0 {
-		reviewResponse.Allowed = false
-		return fmt.Sprintf("Job Version is used internally, should not be specified.")
-	}
-
 	if len(job.Spec.Tasks) == 0 {
 		reviewResponse.Allowed = false
 		return fmt.Sprintf("No task specified in job spec")
diff --git a/pkg/admission/mutate_job.go b/pkg/admission/mutate_job.go
index 10bccf5472..00af6a0065 100644
--- a/pkg/admission/mutate_job.go
+++ b/pkg/admission/mutate_job.go
@@ -72,7 +72,6 @@ func MutateJobs(ar v1beta1.AdmissionReview) *v1beta1.AdmissionResponse {
 
 func createPatch(job v1alpha1.Job) ([]byte, error) {
 	var patch []patchOperation
-	patch = append(patch, mutateJobVersion(job.Status, "/status")...)
 	patch = append(patch, mutateSpec(job.Spec.Tasks, "/spec/tasks")...)
 	patch = append(patch, mutateMetadata(job.ObjectMeta, "/metadata")...)
 
@@ -96,16 +95,6 @@ func mutateSpec(tasks []v1alpha1.TaskSpec, basePath string) (patch []patchOperat
 	return patch
 }
 
-func mutateJobVersion(jobStatus v1alpha1.JobStatus, basePath string) (patch []patchOperation) {
-	jobStatus.Version = 1
-	patch = append(patch, patchOperation{
-		Op:    "replace",
-		Path:  basePath,
-		Value: jobStatus,
-	})
-	return patch
-}
-
 func mutateMetadata(metadata metav1.ObjectMeta, basePath string) (patch []patchOperation) {
 	if len(metadata.Annotations) == 0 {
 		metadata.Annotations = make(map[string]string)
diff --git a/pkg/apis/batch/v1alpha1/job.go b/pkg/apis/batch/v1alpha1/job.go
index f29814acaa..8f04c5607a 100644
--- a/pkg/apis/batch/v1alpha1/job.go
+++ b/pkg/apis/batch/v1alpha1/job.go
@@ -228,7 +228,7 @@ type JobStatus struct {
 	// +optional
 	Terminating int32 `json:"terminating,omitempty" protobuf:"bytes,7,opt,name=terminating"`
 	//Current version of job
-	Version int32
+	Version int32 `json:"version,omitempty" protobuf:"bytes,8,opt,name=version"`
 }
 
 // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
diff --git a/pkg/controllers/job/cache/cache.go b/pkg/controllers/job/cache/cache.go
index ab34966f7c..a1f022b4a8 100644
--- a/pkg/controllers/job/cache/cache.go
+++ b/pkg/controllers/job/cache/cache.go
@@ -231,6 +231,9 @@ func (jc *jobCache) Run(stopCh <-chan struct{}) {
 }
 
 func (jc jobCache) TaskCompleted(jobKey, taskName string) bool {
+	jc.Lock()
+	defer jc.Unlock()
+
 	var taskReplicas, completed int32
 
 	jobInfo, found := jc.jobs[jobKey]
@@ -244,6 +247,10 @@ func (jc jobCache) TaskCompleted(jobKey, taskName string) bool {
 		return false
 	}
 
+	if jobInfo.Job == nil {
+		return false
+	}
+
 	for _, task := range jobInfo.Job.Spec.Tasks {
 		if task.Name == taskName {
 			taskReplicas = task.Replicas
diff --git a/pkg/controllers/job/job_controller_handler.go b/pkg/controllers/job/job_controller_handler.go
index 3e512f4cdc..cbf868c483 100644
--- a/pkg/controllers/job/job_controller_handler.go
+++ b/pkg/controllers/job/job_controller_handler.go
@@ -78,6 +78,11 @@ func (cc *Controller) updateJob(oldObj, newObj interface{}) {
 		return
 	}
 
+	if err := cc.cache.Update(newJob); err != nil {
+		glog.Errorf("Failed to update job <%s/%s>: %v in cache",
+			newJob.Namespace, newJob.Name, err)
+	}
+
 	//NOTE: Since we only reconcile job based on Spec, we will ignore other attributes
 	// For Job status, it's used internally and always been updated via our controller.
 	if reflect.DeepEqual(newJob.Spec, oldJob.Spec) {
@@ -85,11 +90,6 @@ func (cc *Controller) updateJob(oldObj, newObj interface{}) {
 		return
 	}
 
-	if err := cc.cache.Update(newJob); err != nil {
-		glog.Errorf("Failed to update job <%s/%s>: %v in cache",
-			newJob.Namespace, newJob.Name, err)
-	}
-
 	req := apis.Request{
 		Namespace: newJob.Namespace,
 		JobName:   newJob.Name,
diff --git a/pkg/controllers/job/job_controller_util.go b/pkg/controllers/job/job_controller_util.go
index 04155606ed..5a104c5b7c 100644
--- a/pkg/controllers/job/job_controller_util.go
+++ b/pkg/controllers/job/job_controller_util.go
@@ -166,7 +166,7 @@ func applyPolicies(job *vkv1.Job, req *apis.Request) vkv1.Action {
 	}
 
 	//For all the requests triggered from discarded job resources will perform sync action instead
-	if req.JobVersion > 0 && req.JobVersion < job.Status.Version {
+	if req.JobVersion < job.Status.Version {
 		glog.Infof("Request %s is outdated, will perform sync instead.", req)
 		return vkv1.SyncJobAction
 	}
diff --git a/pkg/scheduler/actions/preempt/preempt.go b/pkg/scheduler/actions/preempt/preempt.go
index 7289d92a03..b408f61aae 100644
--- a/pkg/scheduler/actions/preempt/preempt.go
+++ b/pkg/scheduler/actions/preempt/preempt.go
@@ -232,10 +232,9 @@ func preempt(
 			}
 			preempted.Add(preemptee.Resreq)
 			// If reclaimed enough resources, break loop to avoid Sub panic.
-			if resreq.LessEqual(preemptee.Resreq) {
+			if resreq.LessEqual(preempted) {
 				break
 			}
-			resreq.Sub(preemptee.Resreq)
 		}
 
 		metrics.RegisterPreemptionAttempts()
diff --git a/pkg/scheduler/actions/reclaim/reclaim.go b/pkg/scheduler/actions/reclaim/reclaim.go
index 4661db32ba..68e96c8f98 100644
--- a/pkg/scheduler/actions/reclaim/reclaim.go
+++ b/pkg/scheduler/actions/reclaim/reclaim.go
@@ -166,10 +166,9 @@ func (alloc *reclaimAction) Execute(ssn *framework.Session) {
 				}
 				reclaimed.Add(reclaimee.Resreq)
 				// If reclaimed enough resources, break loop to avoid Sub panic.
-				if resreq.LessEqual(reclaimee.Resreq) {
+				if resreq.LessEqual(reclaimed) {
 					break
 				}
-				resreq.Sub(reclaimee.Resreq)
 			}
 
 			glog.V(3).Infof("Reclaimed <%v> for task <%s/%s> requested <%v>.",
diff --git a/test/e2e/admission.go b/test/e2e/admission.go
new file mode 100644
index 0000000000..c963746159
--- /dev/null
+++ b/test/e2e/admission.go
@@ -0,0 +1,125 @@
+/*
+Copyright 2019 The Volcano Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package e2e
+
+import (
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	"k8s.io/apimachinery/pkg/api/errors"
+	"volcano.sh/volcano/pkg/apis/batch/v1alpha1"
+)
+
+var _ = Describe("Job E2E Test: Test Admission service", func() {
+	It("Duplicated Task Name", func() {
+		jobName := "job-duplicated"
+		namespace := "test"
+		context := initTestContext()
+		defer cleanupTestContext(context)
+		rep := clusterSize(context, oneCPU)
+
+		_, err := createJobInner(context, &jobSpec{
+			namespace: namespace,
+			name:      jobName,
+			tasks: []taskSpec{
+				{
+					img:  defaultNginxImage,
+					req:  oneCPU,
+					min:  rep,
+					rep:  rep,
+					name: "duplicated",
+				},
+				{
+					img:  defaultNginxImage,
+					req:  oneCPU,
+					min:  rep,
+					rep:  rep,
+					name: "duplicated",
+				},
+			},
+		})
+		Expect(err).To(HaveOccurred())
+		stError, ok := err.(*errors.StatusError)
+		Expect(ok).To(Equal(true))
+		Expect(stError.ErrStatus.Code).To(Equal(int32(500)))
+		Expect(stError.ErrStatus.Message).To(ContainSubstring("duplicated task name"))
+	})
+
+	It("Duplicated Policy Event", func() {
+		jobName := "job-policy-duplicated"
+		namespace := "test"
+		context := initTestContext()
+		defer cleanupTestContext(context)
+		rep := clusterSize(context, oneCPU)
+
+		_, err := createJobInner(context, &jobSpec{
+			namespace: namespace,
+			name:      jobName,
+			tasks: []taskSpec{
+				{
+					img:  defaultNginxImage,
+					req:  oneCPU,
+					min:  rep,
+					rep:  rep,
+					name: "taskname",
+				},
+			},
+			policies: []v1alpha1.LifecyclePolicy{
+				{
+					Event:  v1alpha1.PodFailedEvent,
+					Action: v1alpha1.AbortJobAction,
+				},
+				{
+					Event:  v1alpha1.PodFailedEvent,
+					Action: v1alpha1.RestartJobAction,
+				},
+			},
+		})
+		Expect(err).To(HaveOccurred())
+		stError, ok := err.(*errors.StatusError)
+		Expect(ok).To(Equal(true))
+		Expect(stError.ErrStatus.Code).To(Equal(int32(500)))
+		Expect(stError.ErrStatus.Message).To(ContainSubstring("duplicated job event policies"))
+	})
+
+	It("Min Available illegal", func() {
+		jobName := "job-min-illegal"
+		namespace := "test"
+		context := initTestContext()
+		defer cleanupTestContext(context)
+		rep := clusterSize(context, oneCPU)
+
+		_, err := createJobInner(context, &jobSpec{
+			min:       rep * 2,
+			namespace: namespace,
+			name:      jobName,
+			tasks: []taskSpec{
+				{
+					img:  defaultNginxImage,
+					req:  oneCPU,
+					min:  rep,
+					rep:  rep,
+					name: "taskname",
+				},
+			},
+		})
+		Expect(err).To(HaveOccurred())
+		stError, ok := err.(*errors.StatusError)
+		Expect(ok).To(Equal(true))
+		Expect(stError.ErrStatus.Code).To(Equal(int32(500)))
+		Expect(stError.ErrStatus.Message).To(ContainSubstring("'minAvailable' should not be greater than total replicas in tasks"))
+	})
+})
diff --git a/test/e2e/util.go b/test/e2e/util.go
index 8393e8b087..543449cc53 100644
--- a/test/e2e/util.go
+++ b/test/e2e/util.go
@@ -221,11 +221,11 @@ func cleanupTestContext(cxt *context) {
 	Expect(err).NotTo(HaveOccurred())
 
 	// Wait for namespace deleted.
-	err = wait.Poll(100*time.Millisecond, oneMinute, namespaceNotExist(cxt))
+	err = wait.Poll(100*time.Millisecond, twoMinute, namespaceNotExist(cxt))
 	Expect(err).NotTo(HaveOccurred())
 
 	// Wait for queues deleted
-	err = wait.Poll(100*time.Millisecond, oneMinute, queueNotExist(cxt))
+	err = wait.Poll(100*time.Millisecond, twoMinute, queueNotExist(cxt))
 	Expect(err).NotTo(HaveOccurred())
 }
 
@@ -294,6 +294,7 @@ type jobSpec struct {
 	queue     string
 	tasks     []taskSpec
 	policies  []vkv1.LifecyclePolicy
+	min       int32
 }
 
 func getNS(context *context, job *jobSpec) string {
@@ -311,6 +312,14 @@ func getNS(context *context, job *jobSpec) string {
 }
 
 func createJob(context *context, jobSpec *jobSpec) *vkv1.Job {
+
+	job, err := createJobInner(context, jobSpec)
+	Expect(err).NotTo(HaveOccurred())
+
+	return job
+}
+
+func createJobInner(context *context, jobSpec *jobSpec) (*vkv1.Job, error) {
 	ns := getNS(context, jobSpec)
 
 	job := &vkv1.Job{
@@ -366,12 +375,13 @@ func createJob(context *context, jobSpec *jobSpec) *vkv1.Job {
 		min += task.min
 	}
 
-	job.Spec.MinAvailable = min
-
-	job, err := context.vkclient.BatchV1alpha1().Jobs(job.Namespace).Create(job)
-	Expect(err).NotTo(HaveOccurred())
+	if jobSpec.min > 0 {
+		job.Spec.MinAvailable = jobSpec.min
+	} else {
+		job.Spec.MinAvailable = min
+	}
 
-	return job
+	return context.vkclient.BatchV1alpha1().Jobs(job.Namespace).Create(job)
 }
 
 func taskPhase(ctx *context, job *vkv1.Job, phase []v1.PodPhase, taskNum int) wait.ConditionFunc {