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add V(4) log when apiserver lease was deleted before this controller reacts

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This commit is contained in:
Haowei Cai 2020-11-10 15:30:14 -08:00
parent bfebc7aefd
commit e363709d73
1 changed files with 13 additions and 5 deletions
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18
pkg/controlplane/controller/apiserverleasegc/gc_controller.go
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@ -108,7 +108,10 @@ func (c *Controller) gc() {
continue
}
if errors.IsNotFound(err) || lease == nil {
// the lease was deleted by the same GC controller in another apiserver
// In an HA cluster, this can happen if the lease was deleted
// by the same GC controller in another apiserver, which is legit.
// We don't expect other components to delete the lease.
klog.V(4).Infof("cannot find apiserver lease: %v", err)
continue
}
// evaluate lease from apiserver
@ -116,10 +119,15 @@ func (c *Controller) gc() {
continue
}
if err := c.kubeclientset.CoordinationV1().Leases(c.leaseNamespace).Delete(
context.TODO(), lease.Name, metav1.DeleteOptions{}); err != nil && !errors.IsNotFound(err) {
// If we get a 404, the lease was deleted by the same GC controller
// in another apiserver. Only log error if we get something other than 404.
klog.Errorf("Error deleting lease: %v", err)
context.TODO(), lease.Name, metav1.DeleteOptions{}); err != nil {
if errors.IsNotFound(err) {
// In an HA cluster, this can happen if the lease was deleted
// by the same GC controller in another apiserver, which is legit.
// We don't expect other components to delete the lease.
klog.V(4).Infof("apiserver lease is gone already: %v", err)
} else {
klog.Errorf("Error deleting lease: %v", err)
}
}
}
}