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ClusterMetricsSelfTest.java
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ClusterMetricsSelfTest.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.ignite.internal;
import org.apache.ignite.*;
import org.apache.ignite.cluster.*;
import org.apache.ignite.configuration.*;
import org.apache.ignite.events.*;
import org.apache.ignite.internal.cluster.*;
import org.apache.ignite.lang.*;
import org.apache.ignite.internal.util.typedef.*;
import org.apache.ignite.testframework.junits.common.*;
import java.util.*;
import java.util.concurrent.*;
import static org.apache.ignite.events.IgniteEventType.*;
/**
* Tests for projection metrics.
*/
@GridCommonTest(group = "Kernal Self")
public class ClusterMetricsSelfTest extends GridCommonAbstractTest {
/** */
private static final int NODES_CNT = 4;
/** */
private static final int ITER_CNT = 30;
/** {@inheritDoc} */
@Override protected void beforeTestsStarted() throws Exception {
for (int i = 0; i < NODES_CNT; i++)
startGrid(i);
}
/** {@inheritDoc} */
@Override protected void afterTestsStopped() throws Exception {
stopAllGrids();
}
/** {@inheritDoc} */
@Override protected IgniteConfiguration getConfiguration(String gridName) throws Exception {
IgniteConfiguration cfg = super.getConfiguration(gridName);
cfg.setCacheConfiguration();
cfg.setIncludeProperties();
cfg.setMetricsUpdateFrequency(0);
return cfg;
}
/**
* @throws Exception In case of error.
*/
public void testEmptyProjection() throws Exception {
try {
grid(0).forPredicate(F.<ClusterNode>alwaysFalse()).metrics();
assert false;
}
catch (ClusterGroupEmptyException e) {
info("Caught expected exception: " + e);
}
}
/**
*
*/
public void testTaskExecution() {
for (int i = 0; i < ITER_CNT; i++) {
info("Starting new iteration: " + i);
try {
performTaskExecutionTest();
}
catch (Throwable t) {
error("Iteration failed: " + i, t);
fail("Test failed (see logs for details).");
}
}
}
/**
* @throws Exception In case of error.
*/
private void performTaskExecutionTest() throws Exception {
Ignite g = grid(0);
JobFinishLock jobFinishLock = new JobFinishLock();
MetricsUpdateLock metricsUpdLock = new MetricsUpdateLock();
try {
for (Ignite g0 : G.allGrids())
g0.events().localListen(jobFinishLock, EVT_JOB_FINISHED);
g.compute().execute(new GridTestTask(), "testArg");
// Wait until all nodes fire JOB FINISH event.
jobFinishLock.await();
g.events().localListen(metricsUpdLock, EVT_NODE_METRICS_UPDATED);
// Wait until local node will have updated metrics.
metricsUpdLock.await();
ClusterMetrics m = g.cluster().metrics();
checkMetrics(m);
}
finally {
for (Ignite g0 : G.allGrids())
g0.events().stopLocalListen(jobFinishLock);
g.events().stopLocalListen(metricsUpdLock);
}
}
/**
* @param m Metrics.
*/
@SuppressWarnings({"FloatingPointEquality"})
private void checkMetrics(ClusterMetrics m) {
assert m.getMaximumActiveJobs() == 0;
assert m.getAverageActiveJobs() == 0;
assert m.getMaximumCancelledJobs() == 0;
assert m.getAverageCancelledJobs() == 0;
assert m.getMaximumRejectedJobs() == 0;
assert m.getAverageRejectedJobs() == 0;
assert m.getMaximumWaitingJobs() == 0;
assert m.getAverageWaitingJobs() == 0;
assert m.getMaximumJobExecuteTime() >= 0;
assert m.getAverageJobExecuteTime() >= 0;
assert m.getAverageJobExecuteTime() <= m.getMaximumJobExecuteTime();
assert m.getMaximumJobWaitTime() >= 0;
assert m.getAverageJobWaitTime() >= 0;
assert m.getAverageJobWaitTime() <= m.getMaximumJobWaitTime();
assert m.getMaximumThreadCount() > 0;
assert m.getIdleTimePercentage() >= 0;
assert m.getIdleTimePercentage() <= 1;
assert m.getAverageCpuLoad() >= 0 || m.getAverageCpuLoad() == -1.0;
assert m.getTotalCpus() > 0;
}
/**
*
*/
private static class JobFinishLock implements IgnitePredicate<IgniteEvent> {
/** Latch. */
private final CountDownLatch latch = new CountDownLatch(NODES_CNT);
/** {@inheritDoc} */
@Override public boolean apply(IgniteEvent evt) {
assert evt.type() == EVT_JOB_FINISHED;
latch.countDown();
return true;
}
/**
* Waits until all nodes fire EVT_JOB_FINISHED.
*
* @throws InterruptedException If interrupted.
*/
public void await() throws InterruptedException {
latch.await();
}
}
/**
*
*/
private static class MetricsUpdateLock implements IgnitePredicate<IgniteEvent> {
/** Latch. */
private final CountDownLatch latch = new CountDownLatch(NODES_CNT * 2);
/** */
private final Map<UUID, Integer> metricsRcvdCnt = new HashMap<>();
/** {@inheritDoc} */
@Override public boolean apply(IgniteEvent evt) {
IgniteDiscoveryEvent discoEvt = (IgniteDiscoveryEvent)evt;
Integer cnt = F.addIfAbsent(metricsRcvdCnt, discoEvt.eventNode().id(), 0);
assert cnt != null;
if (cnt < 2) {
latch.countDown();
metricsRcvdCnt.put(discoEvt.eventNode().id(), ++cnt);
}
return true;
}
/**
* Waits until all metrics will be received twice from all nodes in
* topology.
*
* @throws InterruptedException If interrupted.
*/
public void await() throws InterruptedException {
latch.await();
}
}
}