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Fix PD failover #2570

Merged
merged 8 commits into from
May 27, 2020
Merged

Fix PD failover #2570

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554fd6c
fix pd failover
May 27, 2020
354d97c
fix unit test
May 27, 2020
6461cba
Merge branch 'master' into fix_pd_failover
Yisaer May 27, 2020
bbed046
move into tryToMarkAPeerAsFailure
May 27, 2020
0ac5bc8
use desired Pod function
May 27, 2020
efa8599
fix new func
May 27, 2020
9fe80c4
Update pkg/manager/member/pd_failover.go
Yisaer May 27, 2020
68def29
Merge branch 'master' into fix_pd_failover
Yisaer May 27, 2020
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13 changes: 13 additions & 0 deletions pkg/manager/member/pd_failover.go
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Original file line number Diff line number Diff line change
Expand Up @@ -125,6 +125,9 @@ func (pf *pdFailover) tryToMarkAPeerAsFailure(tc *v1alpha1.TidbCluster) error {
if pdMember.LastTransitionTime.IsZero() {
continue
}
if !pf.isPodDesired(tc, podName) {
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Should we also delete the non desired members in the failure members as done in https://github.com/pingcap/tidb-operator/pull/2560/files#diff-cff8f7143431f3d6302182e300a81909R58?

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I'm not sure if it's necessary right now since all failure members will be cleared. anyway, we can revise it later.

continue
}

if tc.Status.PD.FailureMembers == nil {
tc.Status.PD.FailureMembers = map[string]v1alpha1.PDFailureMember{}
Expand Down Expand Up @@ -257,3 +260,13 @@ func (fpf *fakePDFailover) Failover(_ *v1alpha1.TidbCluster) error {
func (fpf *fakePDFailover) Recover(_ *v1alpha1.TidbCluster) {
return
}

func (pf *pdFailover) isPodDesired(tc *v1alpha1.TidbCluster, podName string) bool {
ordinals := tc.PDStsDesiredOrdinals(true)
ordinal, err := util.GetOrdinalFromPodName(podName)
if err != nil {
klog.Errorf("unexpected pod name %q: %v", podName, err)
return false
}
return ordinals.Has(ordinal)
}