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do not limit failover count when maxFailoverCount not greater than 0 (#977) #978

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merged 1 commit into from
Oct 9, 2019
Merged

do not limit failover count when maxFailoverCount not greater than 0 (#977) #978

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2 changes: 1 addition & 1 deletion pkg/manager/member/tidb_failover.go
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@ func (tf *tidbFailover) Failover(tc *v1alpha1.TidbCluster) error {
}
}

if len(tc.Status.TiDB.FailureMembers) >= int(tc.Spec.TiDB.MaxFailoverCount) {
if tc.Spec.TiDB.MaxFailoverCount > 0 && len(tc.Status.TiDB.FailureMembers) >= int(tc.Spec.TiDB.MaxFailoverCount) {
glog.Warningf("the failure members count reached the limit:%d", tc.Spec.TiDB.MaxFailoverCount)
return nil
}
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46 changes: 46 additions & 0 deletions pkg/manager/member/tidb_failover_test.go
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Expand Up @@ -157,6 +157,52 @@ func TestFakeTiDBFailoverFailover(t *testing.T) {
t.Expect(int(tc.Spec.TiDB.Replicas)).To(Equal(2))
},
},
{
name: "max failover count but maxFailoverCount = 0",
update: func(tc *v1alpha1.TidbCluster) {
tc.Spec.TiDB.MaxFailoverCount = 0
tc.Status.TiDB.Members = map[string]v1alpha1.TiDBMember{
"failover-tidb-0": {
Name: "failover-tidb-0",
Health: false,
},
"failover-tidb-1": {
Name: "failover-tidb-1",
Health: false,
},
"failover-tidb-2": {
Name: "failover-tidb-2",
Health: false,
},
"failover-tidb-3": {
Name: "failover-tidb-3",
Health: false,
},
"failover-tidb-4": {
Name: "failover-tidb-4",
Health: false,
},
}
tc.Status.TiDB.FailureMembers = map[string]v1alpha1.TiDBFailureMember{
"failover-tidb-0": {
PodName: "failover-tidb-0",
},
"failover-tidb-1": {
PodName: "failover-tidb-1",
},
"failover-tidb-2": {
PodName: "failover-tidb-2",
},
}
},
errExpectFn: func(t *GomegaWithT, err error) {
t.Expect(err).NotTo(HaveOccurred())
},
expectFn: func(t *GomegaWithT, tc *v1alpha1.TidbCluster) {
t.Expect(len(tc.Status.TiDB.FailureMembers)).To(Equal(4))
t.Expect(int(tc.Spec.TiDB.Replicas)).To(Equal(2))
},
},
}

for i := range tests {
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2 changes: 1 addition & 1 deletion pkg/manager/member/tikv_failover.go
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Expand Up @@ -51,7 +51,7 @@ func (tf *tikvFailover) Failover(tc *v1alpha1.TidbCluster) error {
if tc.Status.TiKV.FailureStores == nil {
tc.Status.TiKV.FailureStores = map[string]v1alpha1.TiKVFailureStore{}
}
if len(tc.Status.TiKV.FailureStores) >= int(tc.Spec.TiKV.MaxFailoverCount) {
if tc.Spec.TiKV.MaxFailoverCount > 0 && len(tc.Status.TiKV.FailureStores) >= int(tc.Spec.TiKV.MaxFailoverCount) {
glog.Warningf("%s/%s failure stores count reached the limit: %d", ns, tcName, tc.Spec.TiKV.MaxFailoverCount)
return nil
}
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42 changes: 42 additions & 0 deletions pkg/manager/member/tikv_failover_test.go
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Expand Up @@ -254,6 +254,48 @@ func TestTiKVFailoverFailover(t *testing.T) {
g.Expect(len(tc.Status.TiKV.FailureStores)).To(Equal(3))
},
},
{
name: "exceed max failover count2 but maxFailoverCount = 0",
update: func(tc *v1alpha1.TidbCluster) {
tc.Spec.TiKV.MaxFailoverCount = 0
tc.Status.TiKV.Stores = map[string]v1alpha1.TiKVStore{
"12": {
State: v1alpha1.TiKVStateDown,
PodName: "tikv-12",
LastTransitionTime: metav1.Time{Time: time.Now().Add(-70 * time.Minute)},
},
"13": {
State: v1alpha1.TiKVStateDown,
PodName: "tikv-13",
LastTransitionTime: metav1.Time{Time: time.Now().Add(-61 * time.Minute)},
},
"14": {
State: v1alpha1.TiKVStateDown,
PodName: "tikv-14",
LastTransitionTime: metav1.Time{Time: time.Now().Add(-70 * time.Minute)},
},
}
tc.Status.TiKV.FailureStores = map[string]v1alpha1.TiKVFailureStore{
"1": {
PodName: "tikv-1",
StoreID: "1",
},
"2": {
PodName: "tikv-2",
StoreID: "2",
},
"3": {
PodName: "tikv-3",
StoreID: "3",
},
}
},
err: false,
expectFn: func(tc *v1alpha1.TidbCluster) {
g.Expect(int(tc.Spec.TiKV.Replicas)).To(Equal(3))
g.Expect(len(tc.Status.TiKV.FailureStores)).To(Equal(6))
},
},
}
for i := range tests {
testFn(&tests[i], t)
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