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Merge pull request #11040 from ethan-daocloud/patch-3

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cleanup: fix typos in doc/comment
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Gyuho Lee 2019-08-15 09:33:48 -07:00 committed by GitHub
commit 3c31fbbce3
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1 changed files with 5 additions and 5 deletions
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10
functional/tester/stresser_lease.go
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@ -226,7 +226,7 @@ func (ls *leaseStresser) createAliveLeases() {
}
func (ls *leaseStresser) createShortLivedLeases() {
// one round of createLeases() might not create all the short lived leases we want due to falures.
// one round of createLeases() might not create all the short lived leases we want due to failures.
// thus, we want to create remaining short lived leases in the future round.
neededLeases := ls.numLeases - len(ls.shortLivedLeases.getLeasesMap())
var wg sync.WaitGroup
@ -328,10 +328,10 @@ func (ls *leaseStresser) keepLeaseAlive(leaseID int64) {
zap.Error(ls.ctx.Err()),
)
// it is possible that lease expires at invariant checking phase but not at keepLeaseAlive() phase.
// this scenerio is possible when alive lease is just about to expire when keepLeaseAlive() exists and expires at invariant checking phase.
// to circumvent that scenerio, we check each lease before keepalive loop exist to see if it has been renewed in last TTL/2 duration.
// if it is renewed, this means that invariant checking have at least ttl/2 time before lease exipres which is long enough for the checking to finish.
// if it is not renewed, we remove the lease from the alive map so that the lease doesn't exipre during invariant checking
// this scenario is possible when alive lease is just about to expire when keepLeaseAlive() exists and expires at invariant checking phase.
// to circumvent that scenario, we check each lease before keepalive loop exist to see if it has been renewed in last TTL/2 duration.
// if it is renewed, this means that invariant checking have at least ttl/2 time before lease expires which is long enough for the checking to finish.
// if it is not renewed, we remove the lease from the alive map so that the lease doesn't expire during invariant checking
renewTime, ok := ls.aliveLeases.read(leaseID)
if ok && renewTime.Add(defaultTTL/2*time.Second).Before(time.Now()) {
ls.aliveLeases.remove(leaseID)