YARN-5740. Add a new field in Slider status output - lifetime (remaining). Contributed by Jian He

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services-api/src/main/java/org/apache/hadoop/yarn/services/api/impl/ApplicationApiService.java

@@ -52,6 +52,8 @@ import org.apache.commons.lang.SerializationUtils;
 import org.apache.commons.lang.StringUtils;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
+import org.apache.hadoop.yarn.api.records.ApplicationReport;
+import org.apache.hadoop.yarn.api.records.ApplicationTimeoutType;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.exceptions.YarnException;
 import org.apache.hadoop.yarn.services.api.ApplicationApi;
@@ -771,7 +773,7 @@ public class ApplicationApiService implements ApplicationApi {
 
     // Get all applications in a specific state - lighter projection. For full
     // detail, call getApplication on a specific app.
-    Set<String> applications;
+    Set<ApplicationReport> applications;
     try {
       if (StringUtils.isNotEmpty(state)) {
         ApplicationStatus appStatus = new ApplicationStatus();
@@ -793,13 +795,12 @@ public class ApplicationApiService implements ApplicationApi {
     Set<Application> apps = new HashSet<Application>();
     if (applications.size() > 0) {
       try {
-        for (String app : applications) {
+        for (ApplicationReport app : applications) {
           Application application = new Application();
-          // TODO: Need to get lifetime, launch-time and privileged container
+          application.setLifetime(app.getApplicationTimeouts().get(
-          // status from YARN
+              ApplicationTimeoutType.LIFETIME).getRemainingTime());
-          application.setLifetime(null);
+          application.setLaunchTime(new Date(app.getStartTime()));
-          application.setLaunchTime(new Date());
+          application.setName(app.getName());
-          application.setName(app);
           // Containers not required, setting to null to avoid empty list
           application.setContainers(null);
           apps.add(application);
@@ -930,9 +931,7 @@ public class ApplicationApiService implements ApplicationApi {
     app.setLaunchTime(appStatus.get("createTime") == null ? null
         : new Date(appStatus.get("createTime").getAsLong()));
 
-    // lifetime - set it to unlimited for now
+    app.setLifetime(queryLifetime(appName));
-    // TODO: Once YARN-3813 and YARN-4205 are available - get it from YARN
-    app.setLifetime(DEFAULT_UNLIMITED_LIFETIME);
 
     // Quicklinks
     Map<String, String> appQuicklinks = new HashMap<>();
@@ -1062,6 +1061,24 @@ public class ApplicationApiService implements ApplicationApi {
     return object.get(key) == null ? null : object.get(key).getAsJsonObject();
   }
 
+  private long queryLifetime(String appName) {
+    try {
+      return invokeSliderClientRunnable(
+          new SliderClientContextRunnable<Long>() {
+            @Override
+            public Long run(SliderClient sliderClient)
+                throws YarnException, IOException, InterruptedException {
+              ApplicationReport report = sliderClient.findInstance(appName);
+              return report.getApplicationTimeouts()
+                  .get(ApplicationTimeoutType.LIFETIME).getRemainingTime();
+            }
+          });
+    } catch (Exception e) {
+      logger.error("Error when querying lifetime for " + appName, e);
+      return DEFAULT_UNLIMITED_LIFETIME;
+    }
+  }
+
   private JsonObject getSliderApplicationStatus(final String appName)
       throws IOException, YarnException, InterruptedException {
 
@@ -1142,36 +1159,37 @@ public class ApplicationApiService implements ApplicationApi {
     });
   }
 
-  private Set<String> getSliderApplications(final String state)
+  private Set<ApplicationReport> getSliderApplications(final String state)
       throws IOException, YarnException, InterruptedException {
     return getSliderApplications(false, state);
   }
 
-  private Set<String> getSliderApplications(final boolean liveOnly)
+  private Set<ApplicationReport> getSliderApplications(final boolean liveOnly)
       throws IOException, YarnException, InterruptedException {
     return getSliderApplications(liveOnly, null);
   }
 
-  private Set<String> getSliderApplications(final boolean liveOnly,
+  private Set<ApplicationReport> getSliderApplications(final boolean liveOnly,
-      final String state) throws IOException, YarnException,
+      final String state)
-      InterruptedException {
+      throws IOException, YarnException, InterruptedException {
-    return invokeSliderClientRunnable(new SliderClientContextRunnable<Set<String>>() {
+    return invokeSliderClientRunnable(
-      @Override
+        new SliderClientContextRunnable<Set<ApplicationReport>>() {
-      public Set<String> run(SliderClient sliderClient) throws YarnException,
+          @Override
-          IOException, InterruptedException {
+          public Set<ApplicationReport> run(SliderClient sliderClient)
-        Set<String> apps;
+              throws YarnException, IOException, InterruptedException {
-        ActionListArgs listArgs = new ActionListArgs();
+            Set<ApplicationReport> apps;
-        if (liveOnly) {
+            ActionListArgs listArgs = new ActionListArgs();
-          apps = sliderClient.getApplicationList(null);
+            if (liveOnly) {
-        } else if (StringUtils.isNotEmpty(state)) {
+              apps = sliderClient.getApplicationList(null);
-          listArgs.state = state;
+            } else if (StringUtils.isNotEmpty(state)) {
-          apps = sliderClient.getApplicationList(null, listArgs);
+              listArgs.state = state;
-        } else {
+              apps = sliderClient.getApplicationList(null, listArgs);
-          apps = sliderClient.getApplicationList(null, listArgs);
+            } else {
-        }
+              apps = sliderClient.getApplicationList(null, listArgs);
-        return apps;
+            }
-      }
+            return apps;
-    });
+          }
+        });
   }
 
   @DELETE

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-slider/hadoop-yarn-slider-core/src/main/java/org/apache/slider/client/SliderClient.java

@@ -55,6 +55,7 @@ import org.apache.hadoop.yarn.api.ApplicationConstants;
 import org.apache.hadoop.yarn.api.protocolrecords.UpdateApplicationTimeoutsRequest;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
 import org.apache.hadoop.yarn.api.records.ApplicationReport;
+import org.apache.hadoop.yarn.api.records.ApplicationTimeout;
 import org.apache.hadoop.yarn.api.records.ApplicationTimeoutType;
 import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
 import org.apache.hadoop.yarn.api.records.LocalResource;
@@ -178,6 +179,7 @@ import org.codehaus.jettison.json.JSONObject;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.io.ByteArrayOutputStream;
 import java.io.Console;
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -185,6 +187,7 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InterruptedIOException;
+import java.io.OutputStreamWriter;
 import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.io.StringWriter;
@@ -2706,11 +2709,12 @@ public class SliderClient extends AbstractSliderLaunchedService implements RunSe
   @Override
   public int actionList(String clustername, ActionListArgs args)
       throws IOException, YarnException {
-    Set<String> appInstances = getApplicationList(clustername, args);
+    Set<ApplicationReport> appInstances = getApplicationList(clustername, args);
-    // getApplicationList never returns null
+    if (!appInstances.isEmpty()) {
-    return !appInstances.isEmpty() ? EXIT_SUCCESS
+      return EXIT_SUCCESS;
-        : ((appInstances.isEmpty() && isUnset(clustername)) ? EXIT_SUCCESS
+    } else {
-               : EXIT_FALSE);
+      return EXIT_FALSE;
+    }
   }
 
   /**
@@ -2723,8 +2727,8 @@ public class SliderClient extends AbstractSliderLaunchedService implements RunSe
    * @throws IOException
    * @throws YarnException
    */
-  public Set<String> getApplicationList(String clustername) throws IOException,
+  public Set<ApplicationReport> getApplicationList(String clustername)
-      YarnException {
+      throws IOException, YarnException {
     ActionListArgs args = new ActionListArgs();
     args.live = true;
     return getApplicationList(clustername, args);
@@ -2743,8 +2747,8 @@ public class SliderClient extends AbstractSliderLaunchedService implements RunSe
    * @throws UnknownApplicationInstanceException
    *           if a specific instance was named but it was not found
    */
-  public Set<String> getApplicationList(String clustername, ActionListArgs args)
+  public Set<ApplicationReport> getApplicationList(String clustername,
-      throws IOException, YarnException {
+      ActionListArgs args) throws IOException, YarnException {
     if (args.help) {
       actionHelp(ACTION_LIST);
       // the above call throws an exception so the return is not really required
@@ -2830,13 +2834,13 @@ public class SliderClient extends AbstractSliderLaunchedService implements RunSe
     }
     
     // at this point there is either the entire list or a stripped down instance
-    Set<String> listedInstances = new HashSet<String>();
+    Set<ApplicationReport> listedInstances = new HashSet<ApplicationReport>();
     for (String name : persistentInstances.keySet()) {
       ApplicationReport report = reportMap.get(name);
       if (!listOnlyInState || report != null) {
         // list the details if all were requested, or the filtering contained
         // a report
-        listedInstances.add(name);
+        listedInstances.add(report);
         // containers will be non-null when only one instance is requested
         String details = instanceDetailsToString(name, report,
             containers, version, components, verbose);
@@ -3055,7 +3059,7 @@ public class SliderClient extends AbstractSliderLaunchedService implements RunSe
    * @throws YarnException YARN issues
    * @throws IOException IO problems
    */
-  private ApplicationReport findInstance(String appname)
+  public ApplicationReport findInstance(String appname)
       throws YarnException, IOException {
     return yarnAppListClient.findInstance(appname);
   }
@@ -3106,6 +3110,11 @@ public class SliderClient extends AbstractSliderLaunchedService implements RunSe
   @VisibleForTesting
   public int actionStatus(String clustername, ActionStatusArgs statusArgs)
       throws YarnException, IOException {
+    if (statusArgs.lifetime) {
+      queryAndPrintLifetime(clustername);
+      return EXIT_SUCCESS;
+    }
+
     ClusterDescription status = verifyAndGetClusterDescription(clustername);
     String outfile = statusArgs.getOutput();
     if (outfile == null) {
@@ -3122,6 +3131,32 @@ public class SliderClient extends AbstractSliderLaunchedService implements RunSe
     return verifyAndGetClusterDescription(clustername).toJsonString();
   }
 
+  private void queryAndPrintLifetime(String appName)
+      throws YarnException, IOException {
+    ApplicationReport appReport = findInstance(appName);
+    if (appReport == null) {
+      throw new YarnException("No application found for " + appName);
+    }
+    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+    PrintWriter timeoutStr =
+        new PrintWriter(new OutputStreamWriter(baos, Charset.forName("UTF-8")));
+    try {
+      ApplicationTimeout lifetime = appReport.getApplicationTimeouts()
+          .get(ApplicationTimeoutType.LIFETIME);
+      if (lifetime.getRemainingTime() == -1L) {
+        timeoutStr.append(appName + " has no lifetime configured.");
+      } else {
+        timeoutStr.append("\t" + ApplicationTimeoutType.LIFETIME);
+        timeoutStr.print(" expires at : " + lifetime.getExpiryTime());
+        timeoutStr.println(
+            ".\tRemaining Time : " + lifetime.getRemainingTime() + " seconds");
+      }
+      System.out.println(baos.toString("UTF-8"));
+    } finally {
+      timeoutStr.close();
+    }
+  }
+
   private ClusterDescription verifyAndGetClusterDescription(String clustername)
       throws YarnException, IOException {
     verifyBindingsDefined();
@@ -3547,7 +3582,8 @@ public class SliderClient extends AbstractSliderLaunchedService implements RunSe
    * @throws IOException
    */
   @VisibleForTesting
-  public List<ApplicationReport> getApplications() throws YarnException, IOException {
+  public List<ApplicationReport> getApplications()
+      throws YarnException, IOException {
     return yarnClient.getApplications();
   }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-slider/hadoop-yarn-slider-core/src/main/java/org/apache/slider/common/params/ActionStatusArgs.java

@@ -35,6 +35,10 @@ public class ActionStatusArgs extends AbstractActionArgs {
              description = "Output file for the status information")
   public String output;
 
+  @Parameter(names = {ARG_LIFETIME},
+      description = "Lifetime of the application from the time of request")
+  public boolean lifetime;
+
   public String getOutput() {
     return output;
   }