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Merge pull request #6692 from fanminshi/lease_expire_compact_fix

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functional-tester: add rate limiter to lease stresser
This commit is contained in:
fanmin shi 2016-10-21 12:47:27 -07:00 committed by GitHub
commit 21e65eec08
1 changed files with 25 additions and 12 deletions
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37
tools/functional-tester/etcd-tester/lease_stresser.go
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@ -24,11 +24,16 @@ import (
"github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes"
pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
"golang.org/x/net/context"
"golang.org/x/time/rate"
"google.golang.org/grpc"
)
// time to live for lease
const TTL = 30
const (
// time to live for lease
TTL = 30
// leasesStressRoundPs indicates the rate that leaseStresser.run() creates and deletes leases per second
leasesStressRoundPs = 1
)
type leaseStressConfig struct {
numLeases int
@ -44,6 +49,8 @@ type leaseStresser struct {
lc pb.LeaseClient
ctx context.Context
rateLimiter *rate.Limiter
success int
failure int
numLeases int
@ -115,10 +122,13 @@ func newLeaseStresserBuilder(s string, lsConfig *leaseStressConfig) leaseStresse
}
case "default":
return func(mem *member) Stresser {
// limit lease stresser to run 1 round per second
l := rate.NewLimiter(rate.Limit(leasesStressRoundPs), leasesStressRoundPs)
return &leaseStresser{
endpoint: mem.grpcAddr(),
numLeases: lsConfig.numLeases,
keysPerLease: lsConfig.keysPerLease,
rateLimiter: l,
}
}
default:
@ -170,13 +180,16 @@ func (ls *leaseStresser) Stress() error {
func (ls *leaseStresser) run() {
defer ls.runWg.Done()
ls.restartKeepAlives()
for ls.ctx.Err() == nil {
plog.Debugf("creating lease on %v ", ls.endpoint)
for {
if err := ls.rateLimiter.Wait(ls.ctx); err == context.Canceled {
return
}
plog.Debugf("creating lease on %v", ls.endpoint)
ls.createLeases()
plog.Debugf("done creating lease on %v ", ls.endpoint)
plog.Debugf("dropping lease on %v ", ls.endpoint)
plog.Debugf("done creating lease on %v", ls.endpoint)
plog.Debugf("dropping lease on %v", ls.endpoint)
ls.randomlyDropLeases()
plog.Debugf("done dropping lease on %v ", ls.endpoint)
plog.Debugf("done dropping lease on %v", ls.endpoint)
}
}
@ -201,7 +214,7 @@ func (ls *leaseStresser) createLeases() {
plog.Errorf("lease creation error: (%v)", err)
return
}
plog.Debugf("lease %v created ", leaseID)
plog.Debugf("lease %v created", leaseID)
// if attaching keys to the lease encountered an error, we don't add the lease to the aliveLeases map
// because invariant check on the lease will fail due to keys not found
if err := ls.attachKeysWithLease(leaseID); err != nil {
@ -232,7 +245,7 @@ func (ls *leaseStresser) randomlyDropLeases() {
if !dropped {
return
}
plog.Debugf("lease %v dropped ", leaseID)
plog.Debugf("lease %v dropped", leaseID)
ls.revokedLeases.add(leaseID, time.Now())
ls.aliveLeases.remove(leaseID)
}(l)
@ -311,20 +324,20 @@ func (ls *leaseStresser) keepLeaseAlive(leaseID int64) {
err = stream.Send(&pb.LeaseKeepAliveRequest{ID: leaseID})
plog.Debugf("keepLeaseAlive stream sends lease %v keepalive request", leaseID)
if err != nil {
plog.Debugf("keepLeaseAlive stream sends lease %v error (%v) ", leaseID, err)
plog.Debugf("keepLeaseAlive stream sends lease %v error (%v)", leaseID, err)
continue
}
leaseRenewTime := time.Now()
plog.Debugf("keepLeaseAlive stream sends lease %v keepalive request succeed", leaseID)
respRC, err := stream.Recv()
if err != nil {
plog.Debugf("keepLeaseAlive stream receives lease %v stream error (%v) ", leaseID, err)
plog.Debugf("keepLeaseAlive stream receives lease %v stream error (%v)", leaseID, err)
continue
}
// lease expires after TTL become 0
// don't send keepalive if the lease has expired
if respRC.TTL <= 0 {
plog.Debugf("keepLeaseAlive stream receives lease %v has TTL <= 0 ", leaseID)
plog.Debugf("keepLeaseAlive stream receives lease %v has TTL <= 0", leaseID)
ls.aliveLeases.remove(leaseID)
return
}