117 lines
4.4 KiB
C++
117 lines
4.4 KiB
C++
/*
|
|
* RandomClogging.actor.cpp
|
|
*
|
|
* This source file is part of the FoundationDB open source project
|
|
*
|
|
* Copyright 2013-2018 Apple Inc. and the FoundationDB project 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.
|
|
*/
|
|
|
|
#include "fdbclient/NativeAPI.actor.h"
|
|
#include "fdbserver/TesterInterface.actor.h"
|
|
#include "fdbserver/workloads/workloads.actor.h"
|
|
#include "fdbrpc/simulator.h"
|
|
#include "flow/actorcompiler.h" // This must be the last #include.
|
|
|
|
struct RandomCloggingWorkload : TestWorkload {
|
|
bool enabled;
|
|
double testDuration;
|
|
double scale, clogginess;
|
|
int swizzleClog;
|
|
|
|
RandomCloggingWorkload(WorkloadContext const& wcx) : TestWorkload(wcx) {
|
|
enabled = !clientId; // only do this on the "first" client
|
|
testDuration = getOption(options, LiteralStringRef("testDuration"), 10.0);
|
|
scale = getOption(options, LiteralStringRef("scale"), 1.0);
|
|
clogginess = getOption(options, LiteralStringRef("clogginess"), 1.0);
|
|
swizzleClog = getOption(options, LiteralStringRef("swizzle"), 0);
|
|
}
|
|
|
|
std::string description() const override {
|
|
if (&g_simulator == g_network)
|
|
return "RandomClogging";
|
|
else
|
|
return "NoRC";
|
|
}
|
|
Future<Void> setup(Database const& cx) override { return Void(); }
|
|
Future<Void> start(Database const& cx) override {
|
|
if (&g_simulator == g_network && enabled)
|
|
return timeout(
|
|
reportErrors(swizzleClog ? swizzleClogClient(this) : clogClient(this), "RandomCloggingError"),
|
|
testDuration,
|
|
Void());
|
|
else
|
|
return Void();
|
|
}
|
|
Future<bool> check(Database const& cx) override { return true; }
|
|
void getMetrics(std::vector<PerfMetric>& m) override {}
|
|
|
|
ACTOR void doClog(ISimulator::ProcessInfo* machine, double t, double delay = 0.0) {
|
|
wait(::delay(delay));
|
|
g_simulator.clogInterface(machine->address.ip, t);
|
|
}
|
|
|
|
void clogRandomPair(double t) {
|
|
auto m1 = deterministicRandom()->randomChoice(g_simulator.getAllProcesses());
|
|
auto m2 = deterministicRandom()->randomChoice(g_simulator.getAllProcesses());
|
|
if (m1->address.ip != m2->address.ip)
|
|
g_simulator.clogPair(m1->address.ip, m2->address.ip, t);
|
|
}
|
|
|
|
ACTOR Future<Void> clogClient(RandomCloggingWorkload* self) {
|
|
state double lastTime = now();
|
|
state double workloadEnd = now() + self->testDuration;
|
|
loop {
|
|
wait(poisson(&lastTime, self->scale / self->clogginess));
|
|
auto machine = deterministicRandom()->randomChoice(g_simulator.getAllProcesses());
|
|
double t = self->scale * 10.0 * exp(-10.0 * deterministicRandom()->random01());
|
|
t = std::max(0.0, std::min(t, workloadEnd - now()));
|
|
self->doClog(machine, t);
|
|
|
|
t = self->scale * 20.0 * exp(-10.0 * deterministicRandom()->random01());
|
|
t = std::max(0.0, std::min(t, workloadEnd - now()));
|
|
self->clogRandomPair(t);
|
|
}
|
|
}
|
|
|
|
ACTOR Future<Void> swizzleClogClient(RandomCloggingWorkload* self) {
|
|
state double lastTime = now();
|
|
state double workloadEnd = now() + self->testDuration;
|
|
loop {
|
|
wait(poisson(&lastTime, self->scale / self->clogginess));
|
|
double t = self->scale * 10.0 * exp(-10.0 * deterministicRandom()->random01());
|
|
t = std::max(0.0, std::min(t, workloadEnd - now()));
|
|
|
|
// randomly choose half of the machines in the cluster to all clog up,
|
|
// then unclog in a different order over the course of t seconds
|
|
std::vector<ISimulator::ProcessInfo*> swizzled;
|
|
std::vector<double> starts, ends;
|
|
for (int m = 0; m < g_simulator.getAllProcesses().size(); m++)
|
|
if (deterministicRandom()->random01() < 0.5) {
|
|
swizzled.push_back(g_simulator.getAllProcesses()[m]);
|
|
starts.push_back(deterministicRandom()->random01() * t / 2);
|
|
ends.push_back(deterministicRandom()->random01() * t / 2 + t / 2);
|
|
}
|
|
for (int i = 0; i < 10; i++)
|
|
self->clogRandomPair(t);
|
|
|
|
std::vector<Future<Void>> cloggers;
|
|
for (int i = 0; i < swizzled.size(); i++)
|
|
self->doClog(swizzled[i], ends[i] - starts[i], starts[i]);
|
|
}
|
|
}
|
|
};
|
|
|
|
WorkloadFactory<RandomCloggingWorkload> RandomCloggingWorkloadFactory("RandomClogging");
|