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case_network_delay.go
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case_network_delay.go
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// Copyright 2018 The etcd Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package tester
import (
"time"
"github.com/coreos/etcd/functional/rpcpb"
"go.uber.org/zap"
)
const (
// Wait more when it recovers from slow network, because network layer
// needs extra time to propagate traffic control (tc command) change.
// Otherwise, we get different hash values from the previous revision.
// For more detail, please see https://github.com/coreos/etcd/issues/5121.
waitRecover = 5 * time.Second
)
func inject_DELAY_PEER_PORT_TX_RX(clus *Cluster, idx int) error {
clus.lg.Info(
"injecting delay latency",
zap.Duration("latency", time.Duration(clus.Tester.UpdatedDelayLatencyMs)*time.Millisecond),
zap.Duration("latency-rv", time.Duration(clus.Tester.DelayLatencyMsRv)*time.Millisecond),
zap.String("endpoint", clus.Members[idx].EtcdClientEndpoint),
)
return clus.sendOp(idx, rpcpb.Operation_DELAY_PEER_PORT_TX_RX)
}
func recover_DELAY_PEER_PORT_TX_RX(clus *Cluster, idx int) error {
err := clus.sendOp(idx, rpcpb.Operation_UNDELAY_PEER_PORT_TX_RX)
time.Sleep(waitRecover)
return err
}
func new_Case_DELAY_PEER_PORT_TX_RX_ONE_FOLLOWER(clus *Cluster, random bool) Case {
cc := caseByFunc{
rpcpbCase: rpcpb.Case_DELAY_PEER_PORT_TX_RX_ONE_FOLLOWER,
injectMember: inject_DELAY_PEER_PORT_TX_RX,
recoverMember: recover_DELAY_PEER_PORT_TX_RX,
}
clus.Tester.UpdatedDelayLatencyMs = clus.Tester.DelayLatencyMs
if random {
clus.UpdateDelayLatencyMs()
cc.rpcpbCase = rpcpb.Case_RANDOM_DELAY_PEER_PORT_TX_RX_ONE_FOLLOWER
}
c := &caseFollower{cc, -1, -1}
return &caseDelay{
Case: c,
delayDuration: clus.GetCaseDelayDuration(),
}
}
func new_Case_DELAY_PEER_PORT_TX_RX_ONE_FOLLOWER_UNTIL_TRIGGER_SNAPSHOT(clus *Cluster, random bool) Case {
cc := caseByFunc{
rpcpbCase: rpcpb.Case_DELAY_PEER_PORT_TX_RX_ONE_FOLLOWER_UNTIL_TRIGGER_SNAPSHOT,
injectMember: inject_DELAY_PEER_PORT_TX_RX,
recoverMember: recover_DELAY_PEER_PORT_TX_RX,
}
clus.Tester.UpdatedDelayLatencyMs = clus.Tester.DelayLatencyMs
if random {
clus.UpdateDelayLatencyMs()
cc.rpcpbCase = rpcpb.Case_RANDOM_DELAY_PEER_PORT_TX_RX_ONE_FOLLOWER_UNTIL_TRIGGER_SNAPSHOT
}
c := &caseFollower{cc, -1, -1}
return &caseUntilSnapshot{
rpcpbCase: cc.rpcpbCase,
Case: c,
}
}
func new_Case_DELAY_PEER_PORT_TX_RX_LEADER(clus *Cluster, random bool) Case {
cc := caseByFunc{
rpcpbCase: rpcpb.Case_DELAY_PEER_PORT_TX_RX_LEADER,
injectMember: inject_DELAY_PEER_PORT_TX_RX,
recoverMember: recover_DELAY_PEER_PORT_TX_RX,
}
clus.Tester.UpdatedDelayLatencyMs = clus.Tester.DelayLatencyMs
if random {
clus.UpdateDelayLatencyMs()
cc.rpcpbCase = rpcpb.Case_RANDOM_DELAY_PEER_PORT_TX_RX_LEADER
}
c := &caseLeader{cc, -1, -1}
return &caseDelay{
Case: c,
delayDuration: clus.GetCaseDelayDuration(),
}
}
func new_Case_DELAY_PEER_PORT_TX_RX_LEADER_UNTIL_TRIGGER_SNAPSHOT(clus *Cluster, random bool) Case {
cc := caseByFunc{
rpcpbCase: rpcpb.Case_DELAY_PEER_PORT_TX_RX_LEADER_UNTIL_TRIGGER_SNAPSHOT,
injectMember: inject_DELAY_PEER_PORT_TX_RX,
recoverMember: recover_DELAY_PEER_PORT_TX_RX,
}
clus.Tester.UpdatedDelayLatencyMs = clus.Tester.DelayLatencyMs
if random {
clus.UpdateDelayLatencyMs()
cc.rpcpbCase = rpcpb.Case_RANDOM_DELAY_PEER_PORT_TX_RX_LEADER_UNTIL_TRIGGER_SNAPSHOT
}
c := &caseLeader{cc, -1, -1}
return &caseUntilSnapshot{
rpcpbCase: cc.rpcpbCase,
Case: c,
}
}
func new_Case_DELAY_PEER_PORT_TX_RX_QUORUM(clus *Cluster, random bool) Case {
c := &caseQuorum{
caseByFunc: caseByFunc{
rpcpbCase: rpcpb.Case_DELAY_PEER_PORT_TX_RX_QUORUM,
injectMember: inject_DELAY_PEER_PORT_TX_RX,
recoverMember: recover_DELAY_PEER_PORT_TX_RX,
},
injected: make(map[int]struct{}),
}
clus.Tester.UpdatedDelayLatencyMs = clus.Tester.DelayLatencyMs
if random {
clus.UpdateDelayLatencyMs()
c.rpcpbCase = rpcpb.Case_RANDOM_DELAY_PEER_PORT_TX_RX_QUORUM
}
return &caseDelay{
Case: c,
delayDuration: clus.GetCaseDelayDuration(),
}
}
func new_Case_DELAY_PEER_PORT_TX_RX_ALL(clus *Cluster, random bool) Case {
c := &caseAll{
rpcpbCase: rpcpb.Case_DELAY_PEER_PORT_TX_RX_ALL,
injectMember: inject_DELAY_PEER_PORT_TX_RX,
recoverMember: recover_DELAY_PEER_PORT_TX_RX,
}
clus.Tester.UpdatedDelayLatencyMs = clus.Tester.DelayLatencyMs
if random {
clus.UpdateDelayLatencyMs()
c.rpcpbCase = rpcpb.Case_RANDOM_DELAY_PEER_PORT_TX_RX_ALL
}
return &caseDelay{
Case: c,
delayDuration: clus.GetCaseDelayDuration(),
}
}