/**
* 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.server;
import java.io.File;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Collection;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileContext;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.ha.HAServiceProtocol;
import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
import org.apache.hadoop.service.AbstractService;
import org.apache.hadoop.service.CompositeService;
import org.apache.hadoop.util.Shell;
import org.apache.hadoop.util.Shell.ShellCommandExecutor;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterMetricsRequest;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.conf.HAUtil;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.event.Dispatcher;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
import org.apache.hadoop.yarn.factories.RecordFactory;
import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
import org.apache.hadoop.yarn.server.api.ResourceTracker;
import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatRequest;
import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatResponse;
import org.apache.hadoop.yarn.server.api.protocolrecords.RegisterNodeManagerRequest;
import org.apache.hadoop.yarn.server.api.protocolrecords.RegisterNodeManagerResponse;
import org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryServer;
import org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryStore;
import org.apache.hadoop.yarn.server.applicationhistoryservice.MemoryApplicationHistoryStore;
import org.apache.hadoop.yarn.server.applicationhistoryservice.webapp.AHSWebApp;
import org.apache.hadoop.yarn.server.nodemanager.Context;
import org.apache.hadoop.yarn.server.nodemanager.NodeHealthCheckerService;
import org.apache.hadoop.yarn.server.nodemanager.NodeManager;
import org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdater;
import org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEvent;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptEventType;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptRegistrationEvent;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.event.RMAppAttemptUnregistrationEvent;
import org.apache.hadoop.yarn.server.timeline.MemoryTimelineStore;
import org.apache.hadoop.yarn.server.timeline.TimelineStore;
import org.apache.hadoop.yarn.webapp.util.WebAppUtils;
import com.google.common.annotations.VisibleForTesting;
/**
* Embedded Yarn minicluster for testcases that need to interact with a cluster.
* <p/>
* In a real cluster, resource request matching is done using the hostname, and
* by default Yarn minicluster works in the exact same way as a real cluster.
* <p/>
* If a testcase needs to use multiple nodes and exercise resource request
* matching to a specific node, then the property
* {@YarnConfiguration.RM_SCHEDULER_INCLUDE_PORT_IN_NODE_NAME} should be set
* <code>true</code> in the configuration used to initialize the minicluster.
* <p/>
* With this property set to <code>true</code>, the matching will be done using
* the <code>hostname:port</code> of the namenodes. In such case, the AM must
* do resource request using <code>hostname:port</code> as the location.
*/
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class MiniYARNCluster extends CompositeService {
private static final Log LOG = LogFactory.getLog(MiniYARNCluster.class);
// temp fix until metrics system can auto-detect itself running in unit test:
static {
DefaultMetricsSystem.setMiniClusterMode(true);
}
private NodeManager[] nodeManagers;
private ResourceManager[] resourceManagers;
private String[] rmIds;
private ApplicationHistoryServer appHistoryServer;
private boolean useFixedPorts;
private boolean useRpc = false;
private int failoverTimeout;
private ConcurrentMap<ApplicationAttemptId, Long> appMasters =
new ConcurrentHashMap<ApplicationAttemptId, Long>(16, 0.75f, 2);
private File testWorkDir;
// Number of nm-local-dirs per nodemanager
private int numLocalDirs;
// Number of nm-log-dirs per nodemanager
private int numLogDirs;
private boolean enableAHS;
/**
* @param testName name of the test
* @param numResourceManagers the number of resource managers in the cluster
* @param numNodeManagers the number of node managers in the cluster
* @param numLocalDirs the number of nm-local-dirs per nodemanager
* @param numLogDirs the number of nm-log-dirs per nodemanager
* @param enableAHS enable ApplicationHistoryServer or not
*/
public MiniYARNCluster(
String testName, int numResourceManagers, int numNodeManagers,
int numLocalDirs, int numLogDirs, boolean enableAHS) {
super(testName.replace("$", ""));
this.numLocalDirs = numLocalDirs;
this.numLogDirs = numLogDirs;
this.enableAHS = enableAHS;
String testSubDir = testName.replace("$", "");
File targetWorkDir = new File("target", testSubDir);
try {
FileContext.getLocalFSFileContext().delete(
new Path(targetWorkDir.getAbsolutePath()), true);
} catch (Exception e) {
LOG.warn("COULD NOT CLEANUP", e);
throw new YarnRuntimeException("could not cleanup test dir: "+ e, e);
}
if (Shell.WINDOWS) {
// The test working directory can exceed the maximum path length supported
// by some Windows APIs and cmd.exe (260 characters). To work around this,
// create a symlink in temporary storage with a much shorter path,
// targeting the full path to the test working directory. Then, use the
// symlink as the test working directory.
String targetPath = targetWorkDir.getAbsolutePath();
File link = new File(System.getProperty("java.io.tmpdir"),
String.valueOf(System.currentTimeMillis()));
String linkPath = link.getAbsolutePath();
try {
FileContext.getLocalFSFileContext().delete(new Path(linkPath), true);
} catch (IOException e) {
throw new YarnRuntimeException("could not cleanup symlink: " + linkPath, e);
}
// Guarantee target exists before creating symlink.
targetWorkDir.mkdirs();
ShellCommandExecutor shexec = new ShellCommandExecutor(
Shell.getSymlinkCommand(targetPath, linkPath));
try {
shexec.execute();
} catch (IOException e) {
throw new YarnRuntimeException(String.format(
"failed to create symlink from %s to %s, shell output: %s", linkPath,
targetPath, shexec.getOutput()), e);
}
this.testWorkDir = link;
} else {
this.testWorkDir = targetWorkDir;
}
resourceManagers = new ResourceManager[numResourceManagers];
nodeManagers = new NodeManager[numNodeManagers];
}
/**
* @param testName name of the test
* @param numResourceManagers the number of resource managers in the cluster
* @param numNodeManagers the number of node managers in the cluster
* @param numLocalDirs the number of nm-local-dirs per nodemanager
* @param numLogDirs the number of nm-log-dirs per nodemanager
*/
public MiniYARNCluster(
String testName, int numResourceManagers, int numNodeManagers,
int numLocalDirs, int numLogDirs) {
this(testName, numResourceManagers, numNodeManagers, numLocalDirs,
numLogDirs, false);
}
/**
* @param testName name of the test
* @param numNodeManagers the number of node managers in the cluster
* @param numLocalDirs the number of nm-local-dirs per nodemanager
* @param numLogDirs the number of nm-log-dirs per nodemanager
*/
public MiniYARNCluster(String testName, int numNodeManagers,
int numLocalDirs, int numLogDirs) {
this(testName, 1, numNodeManagers, numLocalDirs, numLogDirs);
}
@Override
public void serviceInit(Configuration conf) throws Exception {
useFixedPorts = conf.getBoolean(
YarnConfiguration.YARN_MINICLUSTER_FIXED_PORTS,
YarnConfiguration.DEFAULT_YARN_MINICLUSTER_FIXED_PORTS);
useRpc = conf.getBoolean(YarnConfiguration.YARN_MINICLUSTER_USE_RPC,
YarnConfiguration.DEFAULT_YARN_MINICLUSTER_USE_RPC);
failoverTimeout = conf.getInt(YarnConfiguration.RM_ZK_TIMEOUT_MS,
YarnConfiguration.DEFAULT_RM_ZK_TIMEOUT_MS);
if (useRpc && !useFixedPorts) {
throw new YarnRuntimeException("Invalid configuration!" +
" Minicluster can use rpc only when configured to use fixed ports");
}
conf.setBoolean(YarnConfiguration.IS_MINI_YARN_CLUSTER, true);
if (resourceManagers.length > 1) {
conf.setBoolean(YarnConfiguration.RM_HA_ENABLED, true);
if (conf.get(YarnConfiguration.RM_HA_IDS) == null) {
StringBuilder rmIds = new StringBuilder();
for (int i = 0; i < resourceManagers.length; i++) {
if (i != 0) {
rmIds.append(",");
}
rmIds.append("rm" + i);
}
conf.set(YarnConfiguration.RM_HA_IDS, rmIds.toString());
}
Collection<String> rmIdsCollection = HAUtil.getRMHAIds(conf);
rmIds = rmIdsCollection.toArray(new String[rmIdsCollection.size()]);
}
for (int i = 0; i < resourceManagers.length; i++) {
resourceManagers[i] = createResourceManager();
if (!useFixedPorts) {
if (HAUtil.isHAEnabled(conf)) {
setHARMConfiguration(i, conf);
} else {
setNonHARMConfiguration(conf);
}
}
addService(new ResourceManagerWrapper(i));
}
for(int index = 0; index < nodeManagers.length; index++) {
nodeManagers[index] =
useRpc ? new CustomNodeManager() : new ShortCircuitedNodeManager();
addService(new NodeManagerWrapper(index));
}
if (enableAHS) {
addService(new ApplicationHistoryServerWrapper());
}
super.serviceInit(
conf instanceof YarnConfiguration ? conf : new YarnConfiguration(conf));
}
private void setNonHARMConfiguration(Configuration conf) {
String hostname = MiniYARNCluster.getHostname();
conf.set(YarnConfiguration.RM_ADDRESS, hostname + ":0");
conf.set(YarnConfiguration.RM_ADMIN_ADDRESS, hostname + ":0");
conf.set(YarnConfiguration.RM_SCHEDULER_ADDRESS, hostname + ":0");
conf.set(YarnConfiguration.RM_RESOURCE_TRACKER_ADDRESS, hostname + ":0");
WebAppUtils.setRMWebAppHostnameAndPort(conf, hostname, 0);
}
private void setHARMConfiguration(final int index, Configuration conf) {
String hostname = MiniYARNCluster.getHostname();
for (String confKey : YarnConfiguration.getServiceAddressConfKeys(conf)) {
conf.set(HAUtil.addSuffix(confKey, rmIds[index]), hostname + ":0");
}
}
private synchronized void initResourceManager(int index, Configuration conf) {
if (HAUtil.isHAEnabled(conf)) {
conf.set(YarnConfiguration.RM_HA_ID, rmIds[index]);
}
resourceManagers[index].init(conf);
resourceManagers[index].getRMContext().getDispatcher().register(
RMAppAttemptEventType.class,
new EventHandler<RMAppAttemptEvent>() {
public void handle(RMAppAttemptEvent event) {
if (event instanceof RMAppAttemptRegistrationEvent) {
appMasters.put(event.getApplicationAttemptId(),
event.getTimestamp());
} else if (event instanceof RMAppAttemptUnregistrationEvent) {
appMasters.remove(event.getApplicationAttemptId());
}
}
});
}
private synchronized void startResourceManager(final int index) {
try {
Thread rmThread = new Thread() {
public void run() {
resourceManagers[index].start();
}
};
rmThread.setName("RM-" + index);
rmThread.start();
int waitCount = 0;
while (resourceManagers[index].getServiceState() == STATE.INITED
&& waitCount++ < 60) {
LOG.info("Waiting for RM to start...");
Thread.sleep(1500);
}
if (resourceManagers[index].getServiceState() != STATE.STARTED) {
// RM could have failed.
throw new IOException(
"ResourceManager failed to start. Final state is "
+ resourceManagers[index].getServiceState());
}
} catch (Throwable t) {
throw new YarnRuntimeException(t);
}
LOG.info("MiniYARN ResourceManager address: " +
getConfig().get(YarnConfiguration.RM_ADDRESS));
LOG.info("MiniYARN ResourceManager web address: " +
WebAppUtils.getRMWebAppURLWithoutScheme(getConfig()));
}
@InterfaceAudience.Private
@VisibleForTesting
public synchronized void stopResourceManager(int index) {
if (resourceManagers[index] != null) {
resourceManagers[index].stop();
resourceManagers[index] = null;
}
}
@InterfaceAudience.Private
@VisibleForTesting
public synchronized void restartResourceManager(int index)
throws InterruptedException {
if (resourceManagers[index] != null) {
resourceManagers[index].stop();
resourceManagers[index] = null;
}
Configuration conf = getConfig();
resourceManagers[index] = new ResourceManager();
initResourceManager(index, getConfig());
startResourceManager(index);
}
public File getTestWorkDir() {
return testWorkDir;
}
/**
* In a HA cluster, go through all the RMs and find the Active RM. In a
* non-HA cluster, return the index of the only RM.
*
* @return index of the active RM or -1 if none of them turn active
*/
@InterfaceAudience.Private
@VisibleForTesting
public int getActiveRMIndex() {
if (resourceManagers.length == 1) {
return 0;
}
int numRetriesForRMBecomingActive = failoverTimeout / 100;
while (numRetriesForRMBecomingActive-- > 0) {
for (int i = 0; i < resourceManagers.length; i++) {
if (resourceManagers[i] == null) {
continue;
}
try {
if (HAServiceProtocol.HAServiceState.ACTIVE ==
resourceManagers[i].getRMContext().getRMAdminService()
.getServiceStatus().getState()) {
return i;
}
} catch (IOException e) {
throw new YarnRuntimeException("Couldn't read the status of " +
"a ResourceManger in the HA ensemble.", e);
}
}
try {
Thread.sleep(100);
} catch (InterruptedException e) {
throw new YarnRuntimeException("Interrupted while waiting for one " +
"of the ResourceManagers to become active");
}
}
return -1;
}
/**
* @return the active {@link ResourceManager} of the cluster,
* null if none of them are active.
*/
public ResourceManager getResourceManager() {
int activeRMIndex = getActiveRMIndex();
return activeRMIndex == -1
? null
: this.resourceManagers[activeRMIndex];
}
public ResourceManager getResourceManager(int i) {
return this.resourceManagers[i];
}
public NodeManager getNodeManager(int i) {
return this.nodeManagers[i];
}
public static String getHostname() {
try {
return InetAddress.getLocalHost().getHostName();
}
catch (UnknownHostException ex) {
throw new RuntimeException(ex);
}
}
private class ResourceManagerWrapper extends AbstractService {
private int index;
public ResourceManagerWrapper(int i) {
super(ResourceManagerWrapper.class.getName() + "_" + i);
index = i;
}
@Override
protected synchronized void serviceInit(Configuration conf)
throws Exception {
initResourceManager(index, conf);
super.serviceInit(conf);
}
@Override
protected synchronized void serviceStart() throws Exception {
startResourceManager(index);
LOG.info("MiniYARN ResourceManager address: " +
getConfig().get(YarnConfiguration.RM_ADDRESS));
LOG.info("MiniYARN ResourceManager web address: " +
WebAppUtils.getRMWebAppURLWithoutScheme(getConfig()));
super.serviceStart();
}
private void waitForAppMastersToFinish(long timeoutMillis) throws InterruptedException {
long started = System.currentTimeMillis();
synchronized (appMasters) {
while (!appMasters.isEmpty() && System.currentTimeMillis() - started < timeoutMillis) {
appMasters.wait(1000);
}
}
if (!appMasters.isEmpty()) {
LOG.warn("Stopping RM while some app masters are still alive");
}
}
@Override
protected synchronized void serviceStop() throws Exception {
if (resourceManagers[index] != null) {
waitForAppMastersToFinish(5000);
resourceManagers[index].stop();
}
if (Shell.WINDOWS) {
// On Windows, clean up the short temporary symlink that was created to
// work around path length limitation.
String testWorkDirPath = testWorkDir.getAbsolutePath();
try {
FileContext.getLocalFSFileContext().delete(new Path(testWorkDirPath),
true);
} catch (IOException e) {
LOG.warn("could not cleanup symlink: " +
testWorkDir.getAbsolutePath());
}
}
super.serviceStop();
}
}
private class NodeManagerWrapper extends AbstractService {
int index = 0;
public NodeManagerWrapper(int i) {
super(NodeManagerWrapper.class.getName() + "_" + i);
index = i;
}
protected synchronized void serviceInit(Configuration conf)
throws Exception {
Configuration config = new YarnConfiguration(conf);
// create nm-local-dirs and configure them for the nodemanager
String localDirsString = prepareDirs("local", numLocalDirs);
config.set(YarnConfiguration.NM_LOCAL_DIRS, localDirsString);
// create nm-log-dirs and configure them for the nodemanager
String logDirsString = prepareDirs("log", numLogDirs);
config.set(YarnConfiguration.NM_LOG_DIRS, logDirsString);
// By default AM + 2 containers
config.setInt(YarnConfiguration.NM_PMEM_MB, 4*1024);
config.set(YarnConfiguration.NM_ADDRESS,
MiniYARNCluster.getHostname() + ":0");
config.set(YarnConfiguration.NM_LOCALIZER_ADDRESS,
MiniYARNCluster.getHostname() + ":0");
WebAppUtils
.setNMWebAppHostNameAndPort(config,
MiniYARNCluster.getHostname(), 0);
// Disable resource checks by default
if (!config.getBoolean(
YarnConfiguration.YARN_MINICLUSTER_CONTROL_RESOURCE_MONITORING,
YarnConfiguration.
DEFAULT_YARN_MINICLUSTER_CONTROL_RESOURCE_MONITORING)) {
config.setBoolean(YarnConfiguration.NM_PMEM_CHECK_ENABLED, false);
config.setBoolean(YarnConfiguration.NM_VMEM_CHECK_ENABLED, false);
}
LOG.info("Starting NM: " + index);
nodeManagers[index].init(config);
super.serviceInit(config);
}
/**
* Create local/log directories
* @param dirType type of directories i.e. local dirs or log dirs
* @param numDirs number of directories
* @return the created directories as a comma delimited String
*/
private String prepareDirs(String dirType, int numDirs) {
File []dirs = new File[numDirs];
String dirsString = "";
for (int i = 0; i < numDirs; i++) {
dirs[i]= new File(testWorkDir, MiniYARNCluster.this.getName()
+ "-" + dirType + "Dir-nm-" + index + "_" + i);
dirs[i].mkdirs();
LOG.info("Created " + dirType + "Dir in " + dirs[i].getAbsolutePath());
String delimiter = (i > 0) ? "," : "";
dirsString = dirsString.concat(delimiter + dirs[i].getAbsolutePath());
}
return dirsString;
}
protected synchronized void serviceStart() throws Exception {
try {
new Thread() {
public void run() {
nodeManagers[index].start();
}
}.start();
int waitCount = 0;
while (nodeManagers[index].getServiceState() == STATE.INITED
&& waitCount++ < 60) {
LOG.info("Waiting for NM " + index + " to start...");
Thread.sleep(1000);
}
if (nodeManagers[index].getServiceState() != STATE.STARTED) {
// RM could have failed.
throw new IOException("NodeManager " + index + " failed to start");
}
super.serviceStart();
} catch (Throwable t) {
throw new YarnRuntimeException(t);
}
}
@Override
protected synchronized void serviceStop() throws Exception {
if (nodeManagers[index] != null) {
nodeManagers[index].stop();
}
super.serviceStop();
}
}
private class CustomNodeManager extends NodeManager {
@Override
protected void doSecureLogin() throws IOException {
// Don't try to login using keytab in the testcase.
}
}
private class ShortCircuitedNodeManager extends CustomNodeManager {
@Override
protected NodeStatusUpdater createNodeStatusUpdater(Context context,
Dispatcher dispatcher, NodeHealthCheckerService healthChecker) {
return new NodeStatusUpdaterImpl(context, dispatcher,
healthChecker, metrics) {
@Override
protected ResourceTracker getRMClient() {
final ResourceTrackerService rt =
getResourceManager().getResourceTrackerService();
final RecordFactory recordFactory =
RecordFactoryProvider.getRecordFactory(null);
// For in-process communication without RPC
return new ResourceTracker() {
@Override
public NodeHeartbeatResponse nodeHeartbeat(
NodeHeartbeatRequest request) throws YarnException,
IOException {
NodeHeartbeatResponse response;
try {
response = rt.nodeHeartbeat(request);
} catch (YarnException e) {
LOG.info("Exception in heartbeat from node " +
request.getNodeStatus().getNodeId(), e);
throw e;
}
return response;
}
@Override
public RegisterNodeManagerResponse registerNodeManager(
RegisterNodeManagerRequest request)
throws YarnException, IOException {
RegisterNodeManagerResponse response;
try {
response = rt.registerNodeManager(request);
} catch (YarnException e) {
LOG.info("Exception in node registration from "
+ request.getNodeId().toString(), e);
throw e;
}
return response;
}
};
}
@Override
protected void stopRMProxy() { }
};
}
}
/**
* Wait for all the NodeManagers to connect to the ResourceManager.
*
* @param timeout Time to wait (sleeps in 100 ms intervals) in milliseconds.
* @return true if all NodeManagers connect to the (Active)
* ResourceManager, false otherwise.
* @throws YarnException
* @throws InterruptedException
*/
public boolean waitForNodeManagersToConnect(long timeout)
throws YarnException, InterruptedException {
GetClusterMetricsRequest req = GetClusterMetricsRequest.newInstance();
for (int i = 0; i < timeout / 100; i++) {
ResourceManager rm = getResourceManager();
if (rm == null) {
throw new YarnException("Can not find the active RM.");
}
else if (nodeManagers.length == rm.getClientRMService()
.getClusterMetrics(req).getClusterMetrics().getNumNodeManagers()) {
return true;
}
Thread.sleep(100);
}
return false;
}
private class ApplicationHistoryServerWrapper extends AbstractService {
public ApplicationHistoryServerWrapper() {
super(ApplicationHistoryServerWrapper.class.getName());
}
@Override
protected synchronized void serviceInit(Configuration conf)
throws Exception {
appHistoryServer = new ApplicationHistoryServer();
conf.setClass(YarnConfiguration.APPLICATION_HISTORY_STORE,
MemoryApplicationHistoryStore.class, ApplicationHistoryStore.class);
conf.setClass(YarnConfiguration.TIMELINE_SERVICE_STORE,
MemoryTimelineStore.class, TimelineStore.class);
appHistoryServer.init(conf);
super.serviceInit(conf);
}
@Override
protected synchronized void serviceStart() throws Exception {
try {
new Thread() {
public void run() {
appHistoryServer.start();
};
}.start();
int waitCount = 0;
while (appHistoryServer.getServiceState() == STATE.INITED
&& waitCount++ < 60) {
LOG.info("Waiting for Timeline Server to start...");
Thread.sleep(1500);
}
if (appHistoryServer.getServiceState() != STATE.STARTED) {
// AHS could have failed.
throw new IOException(
"ApplicationHistoryServer failed to start. Final state is "
+ appHistoryServer.getServiceState());
}
super.serviceStart();
} catch (Throwable t) {
throw new YarnRuntimeException(t);
}
LOG.info("MiniYARN ApplicationHistoryServer address: "
+ getConfig().get(YarnConfiguration.TIMELINE_SERVICE_ADDRESS));
LOG.info("MiniYARN ApplicationHistoryServer web address: "
+ getConfig().get(YarnConfiguration.TIMELINE_SERVICE_WEBAPP_ADDRESS));
}
@Override
protected synchronized void serviceStop() throws Exception {
if (appHistoryServer != null) {
appHistoryServer.stop();
}
AHSWebApp.resetInstance();
super.serviceStop();
}
}
public ApplicationHistoryServer getApplicationHistoryServer() {
return this.appHistoryServer;
}
protected ResourceManager createResourceManager() {
return new ResourceManager(){
@Override
protected void doSecureLogin() throws IOException {
// Don't try to login using keytab in the testcases.
}
};
}
public int getNumOfResourceManager() {
return this.resourceManagers.length;
}
}