@Override
public boolean hasFailed() {
if (!isConnected) {
throw new IllegalStateException("The cluster has been connected to the ApplicationMaster.");
}
if (pollingRunner == null) {
LOG.warn(
"FlinkYarnCluster.hasFailed() has been called on an uninitialized cluster."
+ "The system might be in an erroneous state");
}
ApplicationReport lastReport = pollingRunner.getLastReport();
if (lastReport == null) {
LOG.warn(
"FlinkYarnCluster.hasFailed() has been called on a cluster that didn't receive a status so far."
+ "The system might be in an erroneous state");
return false;
} else {
YarnApplicationState appState = lastReport.getYarnApplicationState();
boolean status =
(appState == YarnApplicationState.FAILED || appState == YarnApplicationState.KILLED);
if (status) {
LOG.warn("YARN reported application state {}", appState);
LOG.warn("Diagnostics: {}", lastReport.getDiagnostics());
}
return status;
}
}
public TezSessionStatus getSessionStatus() throws TezException, IOException {
try {
ApplicationReport appReport = yarnClient.getApplicationReport(applicationId);
switch (appReport.getYarnApplicationState()) {
case NEW:
case NEW_SAVING:
case ACCEPTED:
case SUBMITTED:
return TezSessionStatus.INITIALIZING;
case FINISHED:
case FAILED:
case KILLED:
return TezSessionStatus.SHUTDOWN;
case RUNNING:
try {
DAGClientAMProtocolBlockingPB proxy =
TezClientUtils.getSessionAMProxy(
yarnClient, sessionConfig.getYarnConfiguration(), applicationId);
if (proxy == null) {
return TezSessionStatus.INITIALIZING;
}
GetAMStatusResponseProto response =
proxy.getAMStatus(null, GetAMStatusRequestProto.newBuilder().build());
return DagTypeConverters.convertTezSessionStatusFromProto(response.getStatus());
} catch (TezException e) {
LOG.info("Failed to retrieve AM Status via proxy", e);
} catch (ServiceException e) {
LOG.info("Failed to retrieve AM Status via proxy", e);
}
}
} catch (YarnException e) {
throw new TezException(e);
}
return TezSessionStatus.INITIALIZING;
}
public static String appReportToString(ApplicationReport r, String separator) {
StringBuilder builder = new StringBuilder(512);
builder.append("application ").append(r.getName()).append("/").append(r.getApplicationType());
builder.append(separator).append("state: ").append(r.getYarnApplicationState());
builder.append(separator).append("URL: ").append(r.getTrackingUrl());
builder
.append(separator)
.append("Started ")
.append(new Date(r.getStartTime()).toLocaleString());
long finishTime = r.getFinishTime();
if (finishTime > 0) {
builder.append(separator).append("Finished ").append(new Date(finishTime).toLocaleString());
}
builder
.append(separator)
.append("RPC :")
.append(r.getHost())
.append(':')
.append(r.getRpcPort());
String diagnostics = r.getDiagnostics();
if (!diagnostics.isEmpty()) {
builder.append(separator).append("Diagnostics :").append(diagnostics);
}
return builder.toString();
}
public void setYarnApplicationState(YarnApplicationState state) {
when(mockReport.getYarnApplicationState())
.thenReturn(
YarnApplicationState.NEW,
YarnApplicationState.NEW_SAVING,
YarnApplicationState.NEW_SAVING,
state);
}
@Before
public void checkClusterEmpty() throws IOException, YarnException {
if (yarnClient == null) {
yarnClient = YarnClient.createYarnClient();
yarnClient.init(yarnConfiguration);
yarnClient.start();
}
List<ApplicationReport> apps = yarnClient.getApplications();
for (ApplicationReport app : apps) {
if (app.getYarnApplicationState() != YarnApplicationState.FINISHED
&& app.getYarnApplicationState() != YarnApplicationState.KILLED
&& app.getYarnApplicationState() != YarnApplicationState.FAILED) {
Assert.fail(
"There is at least one application on the cluster is not finished."
+ "App "
+ app.getApplicationId()
+ " is in state "
+ app.getYarnApplicationState());
}
}
}
private void waitTillAccepted(YarnClient rmClient, ApplicationId appId) throws Exception {
try {
long start = System.currentTimeMillis();
ApplicationReport report = rmClient.getApplicationReport(appId);
while (YarnApplicationState.ACCEPTED != report.getYarnApplicationState()) {
if (System.currentTimeMillis() - start > 20 * 1000) {
throw new Exception("App '" + appId + "' time out, failed to reach ACCEPTED state");
}
Thread.sleep(200);
report = rmClient.getApplicationReport(appId);
}
} catch (Exception ex) {
throw new Exception(ex);
}
}
/**
* convert an AM report to a string for diagnostics
*
* @param report the report
* @return the string value
*/
public static String reportToString(ApplicationReport report) {
if (report == null) {
return "Null application report";
}
return "App "
+ report.getName()
+ "/"
+ report.getApplicationType()
+ "# "
+ report.getApplicationId()
+ " user "
+ report.getUser()
+ " is in state "
+ report.getYarnApplicationState()
+ "RPC: "
+ report.getHost()
+ ":"
+ report.getRpcPort();
}
@Test(timeout = 20000)
public void testJobSubmissionFailure() throws Exception {
when(resourceMgrDelegate.submitApplication(any(ApplicationSubmissionContext.class)))
.thenReturn(appId);
ApplicationReport report = mock(ApplicationReport.class);
when(report.getApplicationId()).thenReturn(appId);
when(report.getDiagnostics()).thenReturn(failString);
when(report.getYarnApplicationState()).thenReturn(YarnApplicationState.FAILED);
when(resourceMgrDelegate.getApplicationReport(appId)).thenReturn(report);
Credentials credentials = new Credentials();
File jobxml = new File(testWorkDir, "job.xml");
OutputStream out = new FileOutputStream(jobxml);
conf.writeXml(out);
out.close();
try {
yarnRunner.submitJob(jobId, testWorkDir.getAbsolutePath().toString(), credentials);
} catch (IOException io) {
LOG.info("Logging exception:", io);
assertTrue(io.getLocalizedMessage().contains(failString));
}
}
private List<ApplicationReport> getApplicationReports(
List<ApplicationReport> applicationReports,
Set<String> applicationTypes,
EnumSet<YarnApplicationState> applicationStates) {
List<ApplicationReport> appReports = new ArrayList<ApplicationReport>();
for (ApplicationReport appReport : applicationReports) {
if (applicationTypes != null && !applicationTypes.isEmpty()) {
if (!applicationTypes.contains(appReport.getApplicationType())) {
continue;
}
}
if (applicationStates != null && !applicationStates.isEmpty()) {
if (!applicationStates.contains(appReport.getYarnApplicationState())) {
continue;
}
}
appReports.add(appReport);
}
return appReports;
}
@Override
public ApplicationId submitApplication(ApplicationSubmissionContext appContext)
throws YarnException, IOException {
ApplicationId applicationId = appContext.getApplicationId();
if (applicationId == null) {
throw new ApplicationIdNotProvidedException(
"ApplicationId is not provided in ApplicationSubmissionContext");
}
SubmitApplicationRequest request = Records.newRecord(SubmitApplicationRequest.class);
request.setApplicationSubmissionContext(appContext);
// Automatically add the timeline DT into the CLC
// Only when the security and the timeline service are both enabled
if (isSecurityEnabled() && timelineServiceEnabled) {
addTimelineDelegationToken(appContext.getAMContainerSpec());
}
// TODO: YARN-1763:Handle RM failovers during the submitApplication call.
rmClient.submitApplication(request);
int pollCount = 0;
long startTime = System.currentTimeMillis();
EnumSet<YarnApplicationState> waitingStates =
EnumSet.of(
YarnApplicationState.NEW,
YarnApplicationState.NEW_SAVING,
YarnApplicationState.SUBMITTED);
EnumSet<YarnApplicationState> failToSubmitStates =
EnumSet.of(YarnApplicationState.FAILED, YarnApplicationState.KILLED);
while (true) {
try {
ApplicationReport appReport = getApplicationReport(applicationId);
YarnApplicationState state = appReport.getYarnApplicationState();
if (!waitingStates.contains(state)) {
if (failToSubmitStates.contains(state)) {
throw new YarnException(
"Failed to submit " + applicationId + " to YARN : " + appReport.getDiagnostics());
}
LOG.info("Submitted application " + applicationId);
break;
}
long elapsedMillis = System.currentTimeMillis() - startTime;
if (enforceAsyncAPITimeout() && elapsedMillis >= asyncApiPollTimeoutMillis) {
throw new YarnException(
"Timed out while waiting for application "
+ applicationId
+ " to be submitted successfully");
}
// Notify the client through the log every 10 poll, in case the client
// is blocked here too long.
if (++pollCount % 10 == 0) {
LOG.info(
"Application submission is not finished, "
+ "submitted application "
+ applicationId
+ " is still in "
+ state);
}
try {
Thread.sleep(submitPollIntervalMillis);
} catch (InterruptedException ie) {
LOG.error(
"Interrupted while waiting for application "
+ applicationId
+ " to be successfully submitted.");
}
} catch (ApplicationNotFoundException ex) {
// FailOver or RM restart happens before RMStateStore saves
// ApplicationState
LOG.info(
"Re-submit application "
+ applicationId
+ "with the "
+ "same ApplicationSubmissionContext");
rmClient.submitApplication(request);
}
}
return applicationId;
}
private void testDetachedPerJobYarnClusterInternal(String job) {
YarnClient yc = YarnClient.createYarnClient();
yc.init(yarnConfiguration);
yc.start();
// get temporary folder for writing output of wordcount example
File tmpOutFolder = null;
try {
tmpOutFolder = tmp.newFolder();
} catch (IOException e) {
throw new RuntimeException(e);
}
// get temporary file for reading input data for wordcount example
File tmpInFile;
try {
tmpInFile = tmp.newFile();
FileUtils.writeStringToFile(tmpInFile, WordCountData.TEXT);
} catch (IOException e) {
throw new RuntimeException(e);
}
Runner runner =
startWithArgs(
new String[] {
"run",
"-m",
"yarn-cluster",
"-yj",
flinkUberjar.getAbsolutePath(),
"-yt",
flinkLibFolder.getAbsolutePath(),
"-yn",
"1",
"-yjm",
"768",
"-yD",
"yarn.heap-cutoff-ratio=0.5", // test if the cutoff is passed correctly
"-ytm",
"1024",
"-ys",
"2", // test requesting slots from YARN.
"--yarndetached",
job,
tmpInFile.getAbsoluteFile().toString(),
tmpOutFolder.getAbsoluteFile().toString()
},
"Job has been submitted with JobID",
RunTypes.CLI_FRONTEND);
// it should usually be 2, but on slow machines, the number varies
Assert.assertTrue("There should be at most 2 containers running", getRunningContainers() <= 2);
// give the runner some time to detach
for (int attempt = 0; runner.isAlive() && attempt < 5; attempt++) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
}
}
Assert.assertFalse("The runner should detach.", runner.isAlive());
LOG.info("CLI Frontend has returned, so the job is running");
// find out the application id and wait until it has finished.
try {
List<ApplicationReport> apps = yc.getApplications(EnumSet.of(YarnApplicationState.RUNNING));
ApplicationId tmpAppId;
if (apps.size() == 1) {
// Better method to find the right appId. But sometimes the app is shutting down very fast
// Only one running
tmpAppId = apps.get(0).getApplicationId();
LOG.info("waiting for the job with appId {} to finish", tmpAppId);
// wait until the app has finished
while (yc.getApplications(EnumSet.of(YarnApplicationState.RUNNING)).size() > 0) {
sleep(500);
}
} else {
// get appId by finding the latest finished appid
apps = yc.getApplications();
Collections.sort(
apps,
new Comparator<ApplicationReport>() {
@Override
public int compare(ApplicationReport o1, ApplicationReport o2) {
return o1.getApplicationId().compareTo(o2.getApplicationId()) * -1;
}
});
tmpAppId = apps.get(0).getApplicationId();
LOG.info(
"Selected {} as the last appId from {}", tmpAppId, Arrays.toString(apps.toArray()));
}
final ApplicationId id = tmpAppId;
// now it has finished.
// check the output files.
File[] listOfOutputFiles = tmpOutFolder.listFiles();
Assert.assertNotNull("Taskmanager output not found", listOfOutputFiles);
LOG.info("The job has finished. TaskManager output files found in {}", tmpOutFolder);
// read all output files in output folder to one output string
String content = "";
for (File f : listOfOutputFiles) {
if (f.isFile()) {
content += FileUtils.readFileToString(f) + "\n";
}
}
// String content = FileUtils.readFileToString(taskmanagerOut);
// check for some of the wordcount outputs.
Assert.assertTrue(
"Expected string 'da 5' or '(all,2)' not found in string '" + content + "'",
content.contains("da 5") || content.contains("(da,5)") || content.contains("(all,2)"));
Assert.assertTrue(
"Expected string 'der 29' or '(mind,1)' not found in string'" + content + "'",
content.contains("der 29")
|| content.contains("(der,29)")
|| content.contains("(mind,1)"));
// check if the heap size for the TaskManager was set correctly
File jobmanagerLog =
YarnTestBase.findFile(
"..",
new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.contains("jobmanager.log")
&& dir.getAbsolutePath().contains(id.toString());
}
});
Assert.assertNotNull("Unable to locate JobManager log", jobmanagerLog);
content = FileUtils.readFileToString(jobmanagerLog);
// TM was started with 1024 but we cut off 50% (NOT THE DEFAULT VALUE)
String expected = "Starting TM with command=$JAVA_HOME/bin/java -Xms424m -Xmx424m";
Assert.assertTrue(
"Expected string '" + expected + "' not found in JobManager log: '" + jobmanagerLog + "'",
content.contains(expected));
expected = " (2/2) (attempt #0) to ";
Assert.assertTrue(
"Expected string '"
+ expected
+ "' not found in JobManager log."
+ "This string checks that the job has been started with a parallelism of 2. Log contents: '"
+ jobmanagerLog
+ "'",
content.contains(expected));
// make sure the detached app is really finished.
LOG.info("Checking again that app has finished");
ApplicationReport rep;
do {
sleep(500);
rep = yc.getApplicationReport(id);
LOG.info("Got report {}", rep);
} while (rep.getYarnApplicationState() == YarnApplicationState.RUNNING);
} catch (Throwable t) {
LOG.warn("Error while detached yarn session was running", t);
Assert.fail(t.getMessage());
}
}
public void run(String[] args) throws Exception {
final String command = args[0];
final int n = Integer.valueOf(args[1]);
final Path jarPath = new Path(args[2]);
// Create yarnClient
YarnConfiguration conf = new YarnConfiguration();
YarnClient yarnClient = YarnClient.createYarnClient();
yarnClient.init(conf);
yarnClient.start();
// Create application via yarnClient
YarnClientApplication app = yarnClient.createApplication();
// Set up the container launch context for the application master
ContainerLaunchContext amContainer = Records.newRecord(ContainerLaunchContext.class);
amContainer.setCommands(
Collections.singletonList(
"$JAVA_HOME/bin/java"
+ " -Xmx256M"
+ " com.hortonworks.simpleyarnapp.ApplicationMaster"
+ " "
+ command
+ " "
+ String.valueOf(n)
+ " 1>"
+ ApplicationConstants.LOG_DIR_EXPANSION_VAR
+ "/stdout"
+ " 2>"
+ ApplicationConstants.LOG_DIR_EXPANSION_VAR
+ "/stderr"));
// Setup jar for ApplicationMaster
LocalResource appMasterJar = Records.newRecord(LocalResource.class);
setupAppMasterJar(jarPath, appMasterJar);
System.out.println("Jar name is " + jarPath.getName());
amContainer.setLocalResources(Collections.singletonMap(jarPath.getName(), appMasterJar));
// Setup CLASSPATH for ApplicationMaster
Map<String, String> appMasterEnv = new HashMap<String, String>();
setupAppMasterEnv(appMasterEnv);
amContainer.setEnvironment(appMasterEnv);
// Set up resource type requirements for ApplicationMaster
Resource capability = Records.newRecord(Resource.class);
capability.setMemory(256);
capability.setVirtualCores(1);
// Finally, set-up ApplicationSubmissionContext for the application
ApplicationSubmissionContext appContext = app.getApplicationSubmissionContext();
appContext.setApplicationName("apache-yarn-example"); // application name
appContext.setAMContainerSpec(amContainer);
appContext.setResource(capability);
appContext.setQueue("default"); // queue
// Submit application
ApplicationId appId = appContext.getApplicationId();
System.out.println("Submitting application " + appId);
yarnClient.submitApplication(appContext);
ApplicationReport appReport = yarnClient.getApplicationReport(appId);
YarnApplicationState appState = appReport.getYarnApplicationState();
while (appState != YarnApplicationState.FINISHED
&& appState != YarnApplicationState.KILLED
&& appState != YarnApplicationState.FAILED) {
System.out.println("App Status = " + appState);
Thread.sleep(100);
appReport = yarnClient.getApplicationReport(appId);
appState = appReport.getYarnApplicationState();
}
System.out.println(
"Application "
+ appId
+ " finished with"
+ " state "
+ appState
+ " at "
+ appReport.getFinishTime());
}
public static boolean hasAppFinished(ApplicationReport report) {
return report == null
|| report.getYarnApplicationState().ordinal() >= YarnApplicationState.FINISHED.ordinal();
}