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Apache Hadoop Scheduler Load Simulator
/**
* 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.hadoop.yarn.sls.scheduler;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import org.apache.hadoop.classification.InterfaceAudience.LimitedPrivate;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.conf.Configurable;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.util.ReflectionUtils;
import org.apache.hadoop.util.ShutdownHookManager;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationResourceUsageReport;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerExitStatus;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.ContainerStatus;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.QueueACL;
import org.apache.hadoop.yarn.api.records.QueueInfo;
import org.apache.hadoop.yarn.api.records.QueueUserACLInfo;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.api.records.ResourceRequest;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore;
import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainer;
import org.apache.hadoop.yarn.server.resourcemanager.rmcontainer.RMContainerEventType;
import org.apache.hadoop.yarn.server.resourcemanager.rmnode.UpdatedContainerInfo;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.Allocation;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerAppReport;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplication;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNodeReport;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAddedSchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppAttemptRemovedSchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.AppRemovedSchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.NodeUpdateSchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEvent;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEventType;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler;
import org.apache.hadoop.yarn.sls.SLSRunner;
import org.apache.hadoop.yarn.sls.conf.SLSConfiguration;
import org.apache.hadoop.yarn.sls.web.SLSWebApp;
import org.apache.hadoop.yarn.util.resource.ResourceCalculator;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.apache.log4j.Logger;
import com.codahale.metrics.Counter;
import com.codahale.metrics.CsvReporter;
import com.codahale.metrics.Gauge;
import com.codahale.metrics.Histogram;
import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.SlidingWindowReservoir;
import com.codahale.metrics.Timer;
@Private
@Unstable
public class ResourceSchedulerWrapper
extends AbstractYarnScheduler
implements ResourceScheduler, Configurable {
private static final String EOL = System.getProperty("line.separator");
private static final int SAMPLING_SIZE = 60;
private ScheduledExecutorService pool;
// counters for scheduler allocate/handle operations
private Counter schedulerAllocateCounter;
private Counter schedulerHandleCounter;
private Map schedulerHandleCounterMap;
// Timers for scheduler allocate/handle operations
private Timer schedulerAllocateTimer;
private Timer schedulerHandleTimer;
private Map schedulerHandleTimerMap;
private List schedulerHistogramList;
private Map histogramTimerMap;
private Lock samplerLock;
private Lock queueLock;
private Configuration conf;
private ResourceScheduler scheduler;
private Map appQueueMap =
new ConcurrentHashMap();
private BufferedWriter jobRuntimeLogBW;
// Priority of the ResourceSchedulerWrapper shutdown hook.
public static final int SHUTDOWN_HOOK_PRIORITY = 30;
// web app
private SLSWebApp web;
private Map preemptionContainerMap =
new ConcurrentHashMap();
// metrics
private MetricRegistry metrics;
private SchedulerMetrics schedulerMetrics;
private boolean metricsON;
private String metricsOutputDir;
private BufferedWriter metricsLogBW;
private boolean running = false;
private static Map defaultSchedulerMetricsMap =
new HashMap();
static {
defaultSchedulerMetricsMap.put(FairScheduler.class,
FairSchedulerMetrics.class);
defaultSchedulerMetricsMap.put(FifoScheduler.class,
FifoSchedulerMetrics.class);
defaultSchedulerMetricsMap.put(CapacityScheduler.class,
CapacitySchedulerMetrics.class);
}
// must set by outside
private Set queueSet;
private Set trackedAppSet;
public final Logger LOG = Logger.getLogger(ResourceSchedulerWrapper.class);
public ResourceSchedulerWrapper() {
super(ResourceSchedulerWrapper.class.getName());
samplerLock = new ReentrantLock();
queueLock = new ReentrantLock();
}
@Override
public void setConf(Configuration conf) {
this.conf = conf;
// set scheduler
Class klass =
conf.getClass(SLSConfiguration.RM_SCHEDULER, null,
ResourceScheduler.class);
scheduler = ReflectionUtils.newInstance(klass, conf);
// start metrics
metricsON = conf.getBoolean(SLSConfiguration.METRICS_SWITCH, true);
if (metricsON) {
try {
initMetrics();
} catch (Exception e) {
e.printStackTrace();
}
}
ShutdownHookManager.get().addShutdownHook(new Runnable() {
@Override
public void run() {
try {
if (metricsLogBW != null) {
metricsLogBW.write("]");
metricsLogBW.close();
}
if (web != null) {
web.stop();
}
tearDown();
} catch (Exception e) {
e.printStackTrace();
}
}
}, SHUTDOWN_HOOK_PRIORITY);
}
@Override
public Allocation allocate(ApplicationAttemptId attemptId,
List resourceRequests,
List containerIds,
List strings, List strings2) {
if (metricsON) {
final Timer.Context context = schedulerAllocateTimer.time();
Allocation allocation = null;
try {
allocation = scheduler.allocate(attemptId, resourceRequests,
containerIds, strings, strings2);
return allocation;
} finally {
context.stop();
schedulerAllocateCounter.inc();
try {
updateQueueWithAllocateRequest(allocation, attemptId,
resourceRequests, containerIds);
} catch (IOException e) {
e.printStackTrace();
}
}
} else {
return scheduler.allocate(attemptId,
resourceRequests, containerIds, strings, strings2);
}
}
@Override
public void handle(SchedulerEvent schedulerEvent) {
// metrics off
if (! metricsON) {
scheduler.handle(schedulerEvent);
return;
}
if(!running) running = true;
// metrics on
Timer.Context handlerTimer = null;
Timer.Context operationTimer = null;
NodeUpdateSchedulerEventWrapper eventWrapper;
try {
//if (schedulerEvent instanceof NodeUpdateSchedulerEvent) {
if (schedulerEvent.getType() == SchedulerEventType.NODE_UPDATE
&& schedulerEvent instanceof NodeUpdateSchedulerEvent) {
eventWrapper = new NodeUpdateSchedulerEventWrapper(
(NodeUpdateSchedulerEvent)schedulerEvent);
schedulerEvent = eventWrapper;
updateQueueWithNodeUpdate(eventWrapper);
} else if (schedulerEvent.getType() == SchedulerEventType.APP_ATTEMPT_REMOVED
&& schedulerEvent instanceof AppAttemptRemovedSchedulerEvent) {
// check if having AM Container, update resource usage information
AppAttemptRemovedSchedulerEvent appRemoveEvent =
(AppAttemptRemovedSchedulerEvent) schedulerEvent;
ApplicationAttemptId appAttemptId =
appRemoveEvent.getApplicationAttemptID();
String queue = appQueueMap.get(appAttemptId.getApplicationId());
SchedulerAppReport app = scheduler.getSchedulerAppInfo(appAttemptId);
if (! app.getLiveContainers().isEmpty()) { // have 0 or 1
// should have one container which is AM container
RMContainer rmc = app.getLiveContainers().iterator().next();
updateQueueMetrics(queue,
rmc.getContainer().getResource().getMemory(),
rmc.getContainer().getResource().getVirtualCores());
}
}
handlerTimer = schedulerHandleTimer.time();
operationTimer = schedulerHandleTimerMap
.get(schedulerEvent.getType()).time();
scheduler.handle(schedulerEvent);
} finally {
if (handlerTimer != null) handlerTimer.stop();
if (operationTimer != null) operationTimer.stop();
schedulerHandleCounter.inc();
schedulerHandleCounterMap.get(schedulerEvent.getType()).inc();
if (schedulerEvent.getType() == SchedulerEventType.APP_REMOVED
&& schedulerEvent instanceof AppRemovedSchedulerEvent) {
SLSRunner.decreaseRemainingApps();
AppRemovedSchedulerEvent appRemoveEvent =
(AppRemovedSchedulerEvent) schedulerEvent;
appQueueMap.remove(appRemoveEvent.getApplicationID());
} else if (schedulerEvent.getType() == SchedulerEventType.APP_ADDED
&& schedulerEvent instanceof AppAddedSchedulerEvent) {
AppAddedSchedulerEvent appAddEvent =
(AppAddedSchedulerEvent) schedulerEvent;
String queueName = appAddEvent.getQueue();
appQueueMap.put(appAddEvent.getApplicationId(), queueName);
}
}
}
private void updateQueueWithNodeUpdate(
NodeUpdateSchedulerEventWrapper eventWrapper) {
RMNodeWrapper node = (RMNodeWrapper) eventWrapper.getRMNode();
List containerList = node.getContainerUpdates();
for (UpdatedContainerInfo info : containerList) {
for (ContainerStatus status : info.getCompletedContainers()) {
ContainerId containerId = status.getContainerId();
SchedulerAppReport app = scheduler.getSchedulerAppInfo(
containerId.getApplicationAttemptId());
if (app == null) {
// this happens for the AM container
// The app have already removed when the NM sends the release
// information.
continue;
}
String queue =
appQueueMap.get(containerId.getApplicationAttemptId()
.getApplicationId());
int releasedMemory = 0, releasedVCores = 0;
if (status.getExitStatus() == ContainerExitStatus.SUCCESS) {
for (RMContainer rmc : app.getLiveContainers()) {
if (rmc.getContainerId() == containerId) {
releasedMemory += rmc.getContainer().getResource().getMemory();
releasedVCores += rmc.getContainer()
.getResource().getVirtualCores();
break;
}
}
} else if (status.getExitStatus() == ContainerExitStatus.ABORTED) {
if (preemptionContainerMap.containsKey(containerId)) {
Resource preResource = preemptionContainerMap.get(containerId);
releasedMemory += preResource.getMemory();
releasedVCores += preResource.getVirtualCores();
preemptionContainerMap.remove(containerId);
}
}
// update queue counters
updateQueueMetrics(queue, releasedMemory, releasedVCores);
}
}
}
private void updateQueueWithAllocateRequest(Allocation allocation,
ApplicationAttemptId attemptId,
List resourceRequests,
List containerIds) throws IOException {
// update queue information
Resource pendingResource = Resources.createResource(0, 0);
Resource allocatedResource = Resources.createResource(0, 0);
String queueName = appQueueMap.get(attemptId.getApplicationId());
// container requested
for (ResourceRequest request : resourceRequests) {
if (request.getResourceName().equals(ResourceRequest.ANY)) {
Resources.addTo(pendingResource,
Resources.multiply(request.getCapability(),
request.getNumContainers()));
}
}
// container allocated
for (Container container : allocation.getContainers()) {
Resources.addTo(allocatedResource, container.getResource());
Resources.subtractFrom(pendingResource, container.getResource());
}
// container released from AM
SchedulerAppReport report = scheduler.getSchedulerAppInfo(attemptId);
for (ContainerId containerId : containerIds) {
Container container = null;
for (RMContainer c : report.getLiveContainers()) {
if (c.getContainerId().equals(containerId)) {
container = c.getContainer();
break;
}
}
if (container != null) {
// released allocated containers
Resources.subtractFrom(allocatedResource, container.getResource());
} else {
for (RMContainer c : report.getReservedContainers()) {
if (c.getContainerId().equals(containerId)) {
container = c.getContainer();
break;
}
}
if (container != null) {
// released reserved containers
Resources.subtractFrom(pendingResource, container.getResource());
}
}
}
// containers released/preemption from scheduler
Set preemptionContainers = new HashSet();
if (allocation.getContainerPreemptions() != null) {
preemptionContainers.addAll(allocation.getContainerPreemptions());
}
if (allocation.getStrictContainerPreemptions() != null) {
preemptionContainers.addAll(allocation.getStrictContainerPreemptions());
}
if (! preemptionContainers.isEmpty()) {
for (ContainerId containerId : preemptionContainers) {
if (! preemptionContainerMap.containsKey(containerId)) {
Container container = null;
for (RMContainer c : report.getLiveContainers()) {
if (c.getContainerId().equals(containerId)) {
container = c.getContainer();
break;
}
}
if (container != null) {
preemptionContainerMap.put(containerId, container.getResource());
}
}
}
}
// update metrics
SortedMap counterMap = metrics.getCounters();
String names[] = new String[]{
"counter.queue." + queueName + ".pending.memory",
"counter.queue." + queueName + ".pending.cores",
"counter.queue." + queueName + ".allocated.memory",
"counter.queue." + queueName + ".allocated.cores"};
int values[] = new int[]{pendingResource.getMemory(),
pendingResource.getVirtualCores(),
allocatedResource.getMemory(), allocatedResource.getVirtualCores()};
for (int i = names.length - 1; i >= 0; i --) {
if (! counterMap.containsKey(names[i])) {
metrics.counter(names[i]);
counterMap = metrics.getCounters();
}
counterMap.get(names[i]).inc(values[i]);
}
queueLock.lock();
try {
if (! schedulerMetrics.isTracked(queueName)) {
schedulerMetrics.trackQueue(queueName);
}
} finally {
queueLock.unlock();
}
}
private void tearDown() throws IOException {
// close job runtime writer
if (jobRuntimeLogBW != null) {
jobRuntimeLogBW.close();
}
// shut pool
if (pool != null) pool.shutdown();
}
@SuppressWarnings("unchecked")
private void initMetrics() throws Exception {
metrics = new MetricRegistry();
// configuration
metricsOutputDir = conf.get(SLSConfiguration.METRICS_OUTPUT_DIR);
int metricsWebAddressPort = conf.getInt(
SLSConfiguration.METRICS_WEB_ADDRESS_PORT,
SLSConfiguration.METRICS_WEB_ADDRESS_PORT_DEFAULT);
// create SchedulerMetrics for current scheduler
String schedulerMetricsType = conf.get(scheduler.getClass().getName());
Class schedulerMetricsClass = schedulerMetricsType == null?
defaultSchedulerMetricsMap.get(scheduler.getClass()) :
Class.forName(schedulerMetricsType);
schedulerMetrics = (SchedulerMetrics)ReflectionUtils
.newInstance(schedulerMetricsClass, new Configuration());
schedulerMetrics.init(scheduler, metrics);
// register various metrics
registerJvmMetrics();
registerClusterResourceMetrics();
registerContainerAppNumMetrics();
registerSchedulerMetrics();
// .csv output
initMetricsCSVOutput();
// start web app to provide real-time tracking
web = new SLSWebApp(this, metricsWebAddressPort);
web.start();
// a thread to update histogram timer
pool = new ScheduledThreadPoolExecutor(2);
pool.scheduleAtFixedRate(new HistogramsRunnable(), 0, 1000,
TimeUnit.MILLISECONDS);
// a thread to output metrics for real-tiem tracking
pool.scheduleAtFixedRate(new MetricsLogRunnable(), 0, 1000,
TimeUnit.MILLISECONDS);
// application running information
jobRuntimeLogBW = new BufferedWriter(
new FileWriter(metricsOutputDir + "/jobruntime.csv"));
jobRuntimeLogBW.write("JobID,real_start_time,real_end_time," +
"simulate_start_time,simulate_end_time" + EOL);
jobRuntimeLogBW.flush();
}
private void registerJvmMetrics() {
// add JVM gauges
metrics.register("variable.jvm.free.memory",
new Gauge() {
@Override
public Long getValue() {
return Runtime.getRuntime().freeMemory();
}
}
);
metrics.register("variable.jvm.max.memory",
new Gauge() {
@Override
public Long getValue() {
return Runtime.getRuntime().maxMemory();
}
}
);
metrics.register("variable.jvm.total.memory",
new Gauge() {
@Override
public Long getValue() {
return Runtime.getRuntime().totalMemory();
}
}
);
}
private void registerClusterResourceMetrics() {
metrics.register("variable.cluster.allocated.memory",
new Gauge() {
@Override
public Integer getValue() {
if(scheduler == null || scheduler.getRootQueueMetrics() == null) {
return 0;
} else {
return scheduler.getRootQueueMetrics().getAllocatedMB();
}
}
}
);
metrics.register("variable.cluster.allocated.vcores",
new Gauge() {
@Override
public Integer getValue() {
if(scheduler == null || scheduler.getRootQueueMetrics() == null) {
return 0;
} else {
return scheduler.getRootQueueMetrics().getAllocatedVirtualCores();
}
}
}
);
metrics.register("variable.cluster.available.memory",
new Gauge() {
@Override
public Integer getValue() {
if(scheduler == null || scheduler.getRootQueueMetrics() == null) {
return 0;
} else {
return scheduler.getRootQueueMetrics().getAvailableMB();
}
}
}
);
metrics.register("variable.cluster.available.vcores",
new Gauge() {
@Override
public Integer getValue() {
if(scheduler == null || scheduler.getRootQueueMetrics() == null) {
return 0;
} else {
return scheduler.getRootQueueMetrics().getAvailableVirtualCores();
}
}
}
);
}
private void registerContainerAppNumMetrics() {
metrics.register("variable.running.application",
new Gauge() {
@Override
public Integer getValue() {
if (scheduler == null || scheduler.getRootQueueMetrics() == null) {
return 0;
} else {
return scheduler.getRootQueueMetrics().getAppsRunning();
}
}
}
);
metrics.register("variable.running.container",
new Gauge() {
@Override
public Integer getValue() {
if(scheduler == null || scheduler.getRootQueueMetrics() == null) {
return 0;
} else {
return scheduler.getRootQueueMetrics().getAllocatedContainers();
}
}
}
);
}
private void registerSchedulerMetrics() {
samplerLock.lock();
try {
// counters for scheduler operations
schedulerAllocateCounter = metrics.counter(
"counter.scheduler.operation.allocate");
schedulerHandleCounter = metrics.counter(
"counter.scheduler.operation.handle");
schedulerHandleCounterMap = new HashMap();
for (SchedulerEventType e : SchedulerEventType.values()) {
Counter counter = metrics.counter(
"counter.scheduler.operation.handle." + e);
schedulerHandleCounterMap.put(e, counter);
}
// timers for scheduler operations
int timeWindowSize = conf.getInt(
SLSConfiguration.METRICS_TIMER_WINDOW_SIZE,
SLSConfiguration.METRICS_TIMER_WINDOW_SIZE_DEFAULT);
schedulerAllocateTimer = new Timer(
new SlidingWindowReservoir(timeWindowSize));
schedulerHandleTimer = new Timer(
new SlidingWindowReservoir(timeWindowSize));
schedulerHandleTimerMap = new HashMap();
for (SchedulerEventType e : SchedulerEventType.values()) {
Timer timer = new Timer(new SlidingWindowReservoir(timeWindowSize));
schedulerHandleTimerMap.put(e, timer);
}
// histogram for scheduler operations (Samplers)
schedulerHistogramList = new ArrayList();
histogramTimerMap = new HashMap();
Histogram schedulerAllocateHistogram = new Histogram(
new SlidingWindowReservoir(SAMPLING_SIZE));
metrics.register("sampler.scheduler.operation.allocate.timecost",
schedulerAllocateHistogram);
schedulerHistogramList.add(schedulerAllocateHistogram);
histogramTimerMap.put(schedulerAllocateHistogram, schedulerAllocateTimer);
Histogram schedulerHandleHistogram = new Histogram(
new SlidingWindowReservoir(SAMPLING_SIZE));
metrics.register("sampler.scheduler.operation.handle.timecost",
schedulerHandleHistogram);
schedulerHistogramList.add(schedulerHandleHistogram);
histogramTimerMap.put(schedulerHandleHistogram, schedulerHandleTimer);
for (SchedulerEventType e : SchedulerEventType.values()) {
Histogram histogram = new Histogram(
new SlidingWindowReservoir(SAMPLING_SIZE));
metrics.register(
"sampler.scheduler.operation.handle." + e + ".timecost",
histogram);
schedulerHistogramList.add(histogram);
histogramTimerMap.put(histogram, schedulerHandleTimerMap.get(e));
}
} finally {
samplerLock.unlock();
}
}
private void initMetricsCSVOutput() {
int timeIntervalMS = conf.getInt(
SLSConfiguration.METRICS_RECORD_INTERVAL_MS,
SLSConfiguration.METRICS_RECORD_INTERVAL_MS_DEFAULT);
File dir = new File(metricsOutputDir + "/metrics");
if(! dir.exists()
&& ! dir.mkdirs()) {
LOG.error("Cannot create directory " + dir.getAbsoluteFile());
}
final CsvReporter reporter = CsvReporter.forRegistry(metrics)
.formatFor(Locale.US)
.convertRatesTo(TimeUnit.SECONDS)
.convertDurationsTo(TimeUnit.MILLISECONDS)
.build(new File(metricsOutputDir + "/metrics"));
reporter.start(timeIntervalMS, TimeUnit.MILLISECONDS);
}
class HistogramsRunnable implements Runnable {
@Override
public void run() {
samplerLock.lock();
try {
for (Histogram histogram : schedulerHistogramList) {
Timer timer = histogramTimerMap.get(histogram);
histogram.update((int) timer.getSnapshot().getMean());
}
} finally {
samplerLock.unlock();
}
}
}
class MetricsLogRunnable implements Runnable {
private boolean firstLine = true;
public MetricsLogRunnable() {
try {
metricsLogBW = new BufferedWriter(
new FileWriter(metricsOutputDir + "/realtimetrack.json"));
metricsLogBW.write("[");
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void run() {
if(running) {
// all WebApp to get real tracking json
String metrics = web.generateRealTimeTrackingMetrics();
// output
try {
if(firstLine) {
metricsLogBW.write(metrics + EOL);
firstLine = false;
} else {
metricsLogBW.write("," + metrics + EOL);
}
metricsLogBW.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
// the following functions are used by AMSimulator
public void addAMRuntime(ApplicationId appId,
long traceStartTimeMS, long traceEndTimeMS,
long simulateStartTimeMS, long simulateEndTimeMS) {
if (metricsON) {
try {
// write job runtime information
StringBuilder sb = new StringBuilder();
sb.append(appId).append(",").append(traceStartTimeMS).append(",")
.append(traceEndTimeMS).append(",").append(simulateStartTimeMS)
.append(",").append(simulateEndTimeMS);
jobRuntimeLogBW.write(sb.toString() + EOL);
jobRuntimeLogBW.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
private void updateQueueMetrics(String queue,
int releasedMemory, int releasedVCores) {
// update queue counters
SortedMap counterMap = metrics.getCounters();
if (releasedMemory != 0) {
String name = "counter.queue." + queue + ".allocated.memory";
if (! counterMap.containsKey(name)) {
metrics.counter(name);
counterMap = metrics.getCounters();
}
counterMap.get(name).inc(-releasedMemory);
}
if (releasedVCores != 0) {
String name = "counter.queue." + queue + ".allocated.cores";
if (! counterMap.containsKey(name)) {
metrics.counter(name);
counterMap = metrics.getCounters();
}
counterMap.get(name).inc(-releasedVCores);
}
}
public void setQueueSet(Set queues) {
this.queueSet = queues;
}
public Set getQueueSet() {
return this.queueSet;
}
public void setTrackedAppSet(Set apps) {
this.trackedAppSet = apps;
}
public Set getTrackedAppSet() {
return this.trackedAppSet;
}
public MetricRegistry getMetrics() {
return metrics;
}
public SchedulerMetrics getSchedulerMetrics() {
return schedulerMetrics;
}
// API open to out classes
public void addTrackedApp(ApplicationAttemptId appAttemptId,
String oldAppId) {
if (metricsON) {
schedulerMetrics.trackApp(appAttemptId, oldAppId);
}
}
public void removeTrackedApp(ApplicationAttemptId appAttemptId,
String oldAppId) {
if (metricsON) {
schedulerMetrics.untrackApp(appAttemptId, oldAppId);
}
}
@Override
public Configuration getConf() {
return conf;
}
@SuppressWarnings("unchecked")
@Override
public void serviceInit(Configuration conf) throws Exception {
((AbstractYarnScheduler)
scheduler).init(conf);
super.serviceInit(conf);
}
@SuppressWarnings("unchecked")
@Override
public void serviceStart() throws Exception {
((AbstractYarnScheduler)
scheduler).start();
super.serviceStart();
}
@SuppressWarnings("unchecked")
@Override
public void serviceStop() throws Exception {
((AbstractYarnScheduler)
scheduler).stop();
super.serviceStop();
}
@Override
public void setRMContext(RMContext rmContext) {
scheduler.setRMContext(rmContext);
}
@Override
public void reinitialize(Configuration conf, RMContext rmContext)
throws IOException {
scheduler.reinitialize(conf, rmContext);
}
@Override
public void recover(RMStateStore.RMState rmState) throws Exception {
scheduler.recover(rmState);
}
@Override
public QueueInfo getQueueInfo(String s, boolean b, boolean b2)
throws IOException {
return scheduler.getQueueInfo(s, b, b2);
}
@Override
public List getQueueUserAclInfo() {
return scheduler.getQueueUserAclInfo();
}
@Override
public Resource getMinimumResourceCapability() {
return scheduler.getMinimumResourceCapability();
}
@Override
public Resource getMaximumResourceCapability() {
return scheduler.getMaximumResourceCapability();
}
@Override
public ResourceCalculator getResourceCalculator() {
return scheduler.getResourceCalculator();
}
@Override
public int getNumClusterNodes() {
return scheduler.getNumClusterNodes();
}
@Override
public SchedulerNodeReport getNodeReport(NodeId nodeId) {
return scheduler.getNodeReport(nodeId);
}
@Override
public SchedulerAppReport getSchedulerAppInfo(
ApplicationAttemptId attemptId) {
return scheduler.getSchedulerAppInfo(attemptId);
}
@Override
public QueueMetrics getRootQueueMetrics() {
return scheduler.getRootQueueMetrics();
}
@Override
public synchronized boolean checkAccess(UserGroupInformation callerUGI,
QueueACL acl, String queueName) {
return scheduler.checkAccess(callerUGI, acl, queueName);
}
@Override
public ApplicationResourceUsageReport getAppResourceUsageReport(
ApplicationAttemptId appAttemptId) {
return scheduler.getAppResourceUsageReport(appAttemptId);
}
@Override
public List getAppsInQueue(String queue) {
return scheduler.getAppsInQueue(queue);
}
@Override
public RMContainer getRMContainer(ContainerId containerId) {
return null;
}
@Override
public String moveApplication(ApplicationId appId, String newQueue)
throws YarnException {
return scheduler.moveApplication(appId, newQueue);
}
@Override
@LimitedPrivate("yarn")
@Unstable
public Resource getClusterResource() {
return null;
}
@Override
public synchronized List getTransferredContainers(
ApplicationAttemptId currentAttempt) {
return new ArrayList();
}
@Override
public Map>
getSchedulerApplications() {
return new HashMap>();
}
@Override
protected void completedContainer(RMContainer rmContainer,
ContainerStatus containerStatus, RMContainerEventType event) {
// do nothing
}
}
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