YARN-631. Changed ClientRMProtocol api to throw IOException and YarnRemoteException. Contributed by Xuan Gong.

MAPREDUCE-5212. Handling YarnRemoteException separately from IOException in MR App after YARN-631. Contributed by Xuan Gong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1480494 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -389,6 +389,9 @@ Release 2.0.5-beta - UNRELEASED
     MAPREDUCE-5209. Fix units in a ShuffleScheduler log message.
     (Tsuyoshi OZAWA via cdouglas)
 
+    MAPREDUCE-5212. Handling YarnRemoteException separately from IOException in
+    MR App after YARN-631. (Xuan Gong via vinodkv)
+
 Release 2.0.4-alpha - 2013-04-25
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/main/java/org/apache/hadoop/mapred/ClientServiceDelegate.java

@@ -137,7 +137,7 @@ public class ClientServiceDelegate {
     }
   }
 
-  private MRClientProtocol getProxy() throws YarnRemoteException {
+  private MRClientProtocol getProxy() throws YarnRemoteException, IOException {
     if (realProxy != null) {
       return realProxy;
     }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestClientServiceDelegate.java

@@ -362,7 +362,7 @@ public class TestClientServiceDelegate {
   }
 
   private void testRMDownForJobStatusBeforeGetAMReport(Configuration conf,
-      int noOfRetries) throws YarnRemoteException {
+      int noOfRetries) throws YarnRemoteException, IOException {
     conf.set(MRConfig.FRAMEWORK_NAME, MRConfig.YARN_FRAMEWORK_NAME);
     conf.setBoolean(MRJobConfig.JOB_AM_ACCESS_DISABLED,
         !isAMReachableFromClient);
@@ -429,7 +429,8 @@ public class TestClientServiceDelegate {
         "N/A", 0.0f);
   }
 
-  private ResourceMgrDelegate getRMDelegate() throws YarnRemoteException {
+  private ResourceMgrDelegate getRMDelegate() throws YarnRemoteException,
+      IOException {
     ResourceMgrDelegate rm = mock(ResourceMgrDelegate.class);
     when(rm.getApplicationReport(jobId.getAppId())).thenReturn(null);
     return rm;

hadoop-yarn-project/CHANGES.txt

@@ -118,6 +118,9 @@ Release 2.0.5-beta - UNRELEASED
     YARN-632. Changed ContainerManager api to throw IOException and
     YarnRemoteException. (Xuan Gong via vinodkv)
 
+    YARN-631. Changed ClientRMProtocol api to throw IOException and
+    YarnRemoteException. (Xuan Gong via vinodkv)
+
   NEW FEATURES
 
     YARN-482. FS: Extend SchedulingMode to intermediate queues. 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ClientRMProtocol.java

@@ -18,6 +18,8 @@
 
 package org.apache.hadoop.yarn.api;
 
+import java.io.IOException;
+
 import org.apache.hadoop.classification.InterfaceAudience.Private;
 import org.apache.hadoop.classification.InterfaceAudience.Public;
 import org.apache.hadoop.classification.InterfaceStability.Stable;
@@ -78,11 +80,12 @@ public interface ClientRMProtocol {
    * @return response containing the new <code>ApplicationId</code> to be used
    * to submit an application
    * @throws YarnRemoteException
+   * @throws IOException
    * @see #submitApplication(SubmitApplicationRequest)
    */
   public GetNewApplicationResponse getNewApplication(
       GetNewApplicationRequest request)
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
   
   /**
    * <p>The interface used by clients to submit a new application to the
@@ -106,11 +109,12 @@ public interface ClientRMProtocol {
    * @param request request to submit a new application
    * @return (empty) response on accepting the submission
    * @throws YarnRemoteException
+   * @throws IOException
    * @see #getNewApplication(GetNewApplicationRequest)
    */
   public SubmitApplicationResponse submitApplication(
       SubmitApplicationRequest request) 
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
   
   /**
    * <p>The interface used by clients to request the 
@@ -129,11 +133,12 @@ public interface ClientRMProtocol {
    * @return <code>ResourceManager</code> returns an empty response
    *         on success and throws an exception on rejecting the request
    * @throws YarnRemoteException
+   * @throws IOException
    * @see #getQueueUserAcls(GetQueueUserAclsInfoRequest) 
    */
   public KillApplicationResponse forceKillApplication(
       KillApplicationRequest request) 
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
 
   /**
    * <p>The interface used by clients to get a report of an Application from
@@ -164,10 +169,11 @@ public interface ClientRMProtocol {
    * @param request request for an application report
    * @return application report 
    * @throws YarnRemoteException
+   * @throws IOException
    */
   public GetApplicationReportResponse getApplicationReport(
       GetApplicationReportRequest request) 
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
   
   /**
    * <p>The interface used by clients to get metrics about the cluster from
@@ -181,10 +187,11 @@ public interface ClientRMProtocol {
    * @param request request for cluster metrics
    * @return cluster metrics
    * @throws YarnRemoteException
+   * @throws IOException
    */
   public GetClusterMetricsResponse getClusterMetrics(
       GetClusterMetricsRequest request) 
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
   
   /**
    * <p>The interface used by clients to get a report of all Applications
@@ -202,10 +209,11 @@ public interface ClientRMProtocol {
    * @param request request for report on all running applications
    * @return report on all running applications
    * @throws YarnRemoteException
+   * @throws IOException
    */
   public GetAllApplicationsResponse getAllApplications(
       GetAllApplicationsRequest request) 
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
   
   /**
    * <p>The interface used by clients to get a report of all nodes
@@ -218,10 +226,11 @@ public interface ClientRMProtocol {
    * @param request request for report on all nodes
    * @return report on all nodes
    * @throws YarnRemoteException
+   * @throws IOException
    */
   public GetClusterNodesResponse getClusterNodes(
       GetClusterNodesRequest request) 
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
   
   /**
    * <p>The interface used by clients to get information about <em>queues</em>
@@ -236,10 +245,11 @@ public interface ClientRMProtocol {
    * @param request request to get queue information
    * @return queue information
    * @throws YarnRemoteException
+   * @throws IOException
    */
   public GetQueueInfoResponse getQueueInfo(
       GetQueueInfoRequest request) 
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
   
   /**
    * <p>The interface used by clients to get information about <em>queue 
@@ -252,10 +262,11 @@ public interface ClientRMProtocol {
    * @param request request to get queue acls for <em>current user</em>
    * @return queue acls for <em>current user</em>
    * @throws YarnRemoteException
+   * @throws IOException
    */
   public GetQueueUserAclsInfoResponse getQueueUserAcls(
       GetQueueUserAclsInfoRequest request) 
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
   
   /**
    * <p>The interface used by clients to get delegation token, enabling the 
@@ -267,10 +278,11 @@ public interface ClientRMProtocol {
    * @param request request to get a delegation token for the client.
    * @return delegation token that can be used to talk to this service
    * @throws YarnRemoteException
+   * @throws IOException
    */
   public GetDelegationTokenResponse getDelegationToken(
       GetDelegationTokenRequest request) 
-  throws YarnRemoteException;
+  throws YarnRemoteException, IOException;
   
   /**
    * Renew an existing delegation token.
@@ -278,10 +290,12 @@ public interface ClientRMProtocol {
    * @param request the delegation token to be renewed.
    * @return the new expiry time for the delegation token.
    * @throws YarnRemoteException
+   * @throws IOException
    */
   @Private
   public RenewDelegationTokenResponse renewDelegationToken(
-      RenewDelegationTokenRequest request) throws YarnRemoteException;
+      RenewDelegationTokenRequest request) throws YarnRemoteException,
+      IOException;
 
   /**
    * Cancel an existing delegation token.
@@ -289,8 +303,10 @@ public interface ClientRMProtocol {
    * @param request the delegation token to be cancelled.
    * @return an empty response.
    * @throws YarnRemoteException
+   * @throws IOException
    */
   @Private
   public CancelDelegationTokenResponse cancelDelegationToken(
-      CancelDelegationTokenRequest request) throws YarnRemoteException;
+      CancelDelegationTokenRequest request) throws YarnRemoteException,
+      IOException;
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/src/main/java/org/apache/hadoop/yarn/applications/distributedshell/Client.java

@@ -592,8 +592,10 @@ public class Client extends YarnClientImpl {
    * @param appId Application Id of application to be monitored
    * @return true if application completed successfully
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  private boolean monitorApplication(ApplicationId appId) throws YarnRemoteException {
+  private boolean monitorApplication(ApplicationId appId)
+      throws YarnRemoteException, IOException {
 
     while (true) {
 
@@ -655,8 +657,10 @@ public class Client extends YarnClientImpl {
    * Kill a submitted application by sending a call to the ASM
    * @param appId Application Id to be killed. 
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  private void forceKillApplication(ApplicationId appId) throws YarnRemoteException {
+  private void forceKillApplication(ApplicationId appId)
+      throws YarnRemoteException, IOException {
     // TODO clarify whether multiple jobs with the same app id can be submitted and be running at 
     // the same time. 
     // If yes, can we kill a particular attempt only?

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-unmanaged-am-launcher/src/main/java/org/apache/hadoop/yarn/applications/unmanagedamlauncher/UnmanagedAMLauncher.java

@@ -357,9 +357,11 @@ public class UnmanagedAMLauncher {
    *          Application Id of application to be monitored
    * @return true if application completed successfully
    * @throws YarnRemoteException
+   * @throws IOException
    */
   private ApplicationReport monitorApplication(ApplicationId appId,
-      Set<YarnApplicationState> finalState) throws YarnRemoteException {
+      Set<YarnApplicationState> finalState) throws YarnRemoteException,
+      IOException {
 
     long foundAMCompletedTime = 0;
     final int timeToWaitMS = 10000;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/YarnClient.java

@@ -18,6 +18,7 @@
 
 package org.apache.hadoop.yarn.client;
 
+import java.io.IOException;
 import java.util.List;
 
 import org.apache.hadoop.classification.InterfaceAudience;
@@ -58,8 +59,10 @@ public interface YarnClient extends Service {
    * @return response containing the new <code>ApplicationId</code> to be used
    *         to submit an application
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  GetNewApplicationResponse getNewApplication() throws YarnRemoteException;
+  GetNewApplicationResponse getNewApplication() throws YarnRemoteException,
+      IOException;
 
   /**
    * <p>
@@ -73,10 +76,11 @@ public interface YarnClient extends Service {
    *          needed to submit a new application
    * @return {@link ApplicationId} of the accepted application
    * @throws YarnRemoteException
+   * @throws IOException
    * @see #getNewApplication()
    */
   ApplicationId submitApplication(ApplicationSubmissionContext appContext)
-      throws YarnRemoteException;
+      throws YarnRemoteException, IOException;
 
   /**
    * <p>
@@ -88,9 +92,11 @@ public interface YarnClient extends Service {
    * @throws YarnRemoteException
    *           in case of errors or if YARN rejects the request due to
    *           access-control restrictions.
+   * @throws IOException
    * @see #getQueueAclsInfo()
    */
-  void killApplication(ApplicationId applicationId) throws YarnRemoteException;
+  void killApplication(ApplicationId applicationId) throws YarnRemoteException,
+      IOException;
 
   /**
    * <p>
@@ -120,9 +126,10 @@ public interface YarnClient extends Service {
    *          {@link ApplicationId} of the application that needs a report
    * @return application report
    * @throws YarnRemoteException
+   * @throws IOException
    */
   ApplicationReport getApplicationReport(ApplicationId appId)
-      throws YarnRemoteException;
+      throws YarnRemoteException, IOException;
 
   /**
    * <p>
@@ -137,8 +144,10 @@ public interface YarnClient extends Service {
    * 
    * @return a list of reports of all running applications
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  List<ApplicationReport> getApplicationList() throws YarnRemoteException;
+  List<ApplicationReport> getApplicationList() throws YarnRemoteException,
+      IOException;
 
   /**
    * <p>
@@ -147,8 +156,10 @@ public interface YarnClient extends Service {
    * 
    * @return cluster metrics
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  YarnClusterMetrics getYarnClusterMetrics() throws YarnRemoteException;
+  YarnClusterMetrics getYarnClusterMetrics() throws YarnRemoteException,
+      IOException;
 
   /**
    * <p>
@@ -157,8 +168,9 @@ public interface YarnClient extends Service {
    * 
    * @return A list of report of all nodes
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  List<NodeReport> getNodeReports() throws YarnRemoteException;
+  List<NodeReport> getNodeReports() throws YarnRemoteException, IOException;
 
   /**
    * <p>
@@ -170,8 +182,10 @@ public interface YarnClient extends Service {
    * @return a delegation token ({@link DelegationToken}) that can be used to
    *         talk to YARN
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  DelegationToken getRMDelegationToken(Text renewer) throws YarnRemoteException;
+  DelegationToken getRMDelegationToken(Text renewer)
+      throws YarnRemoteException, IOException;
 
   /**
    * <p>
@@ -184,8 +198,10 @@ public interface YarnClient extends Service {
    * @throws YarnRemoteException
    *           in case of errors or if YARN rejects the request due to
    *           access-control restrictions.
+   * @throws IOException
    */
-  QueueInfo getQueueInfo(String queueName) throws YarnRemoteException;
+  QueueInfo getQueueInfo(String queueName) throws YarnRemoteException,
+      IOException;
 
   /**
    * <p>
@@ -195,8 +211,9 @@ public interface YarnClient extends Service {
    * 
    * @return a list of queue-information for all queues
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  List<QueueInfo> getAllQueues() throws YarnRemoteException;
+  List<QueueInfo> getAllQueues() throws YarnRemoteException, IOException;
 
   /**
    * <p>
@@ -205,8 +222,9 @@ public interface YarnClient extends Service {
    * 
    * @return a list of queue-information for all the top-level queues
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  List<QueueInfo> getRootQueueInfos() throws YarnRemoteException;
+  List<QueueInfo> getRootQueueInfos() throws YarnRemoteException, IOException;
 
   /**
    * <p>
@@ -219,8 +237,10 @@ public interface YarnClient extends Service {
    * @return a list of queue-information for all queues who are direct children
    *         of the given parent queue.
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  List<QueueInfo> getChildQueueInfos(String parent) throws YarnRemoteException;
+  List<QueueInfo> getChildQueueInfos(String parent) throws YarnRemoteException,
+      IOException;
 
   /**
    * <p>
@@ -231,6 +251,8 @@ public interface YarnClient extends Service {
    * @return a list of queue acls ({@link QueueUserACLInfo}) for
    *         <em>current user</em>
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  List<QueueUserACLInfo> getQueueAclsInfo() throws YarnRemoteException;
+  List<QueueUserACLInfo> getQueueAclsInfo() throws YarnRemoteException,
+      IOException;
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/YarnClientImpl.java

@@ -18,6 +18,7 @@
 
 package org.apache.hadoop.yarn.client;
 
+import java.io.IOException;
 import java.net.InetSocketAddress;
 import java.util.ArrayList;
 import java.util.List;
@@ -121,7 +122,7 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
 
   @Override
   public GetNewApplicationResponse getNewApplication()
-      throws YarnRemoteException {
+      throws YarnRemoteException, IOException {
     GetNewApplicationRequest request =
         Records.newRecord(GetNewApplicationRequest.class);
     return rmClient.getNewApplication(request);
@@ -130,7 +131,7 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
   @Override
   public ApplicationId
       submitApplication(ApplicationSubmissionContext appContext)
-          throws YarnRemoteException {
+          throws YarnRemoteException, IOException {
     ApplicationId applicationId = appContext.getApplicationId();
     appContext.setApplicationId(applicationId);
     SubmitApplicationRequest request =
@@ -167,7 +168,7 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
 
   @Override
   public void killApplication(ApplicationId applicationId)
-      throws YarnRemoteException {
+      throws YarnRemoteException, IOException {
     LOG.info("Killing application " + applicationId);
     KillApplicationRequest request =
         Records.newRecord(KillApplicationRequest.class);
@@ -177,7 +178,7 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
 
   @Override
   public ApplicationReport getApplicationReport(ApplicationId appId)
-      throws YarnRemoteException {
+      throws YarnRemoteException, IOException {
     GetApplicationReportRequest request =
         Records.newRecord(GetApplicationReportRequest.class);
     request.setApplicationId(appId);
@@ -188,7 +189,7 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
 
   @Override
   public List<ApplicationReport> getApplicationList()
-      throws YarnRemoteException {
+      throws YarnRemoteException, IOException {
     GetAllApplicationsRequest request =
         Records.newRecord(GetAllApplicationsRequest.class);
     GetAllApplicationsResponse response = rmClient.getAllApplications(request);
@@ -196,7 +197,8 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
   }
 
   @Override
-  public YarnClusterMetrics getYarnClusterMetrics() throws YarnRemoteException {
+  public YarnClusterMetrics getYarnClusterMetrics() throws YarnRemoteException,
+      IOException {
     GetClusterMetricsRequest request =
         Records.newRecord(GetClusterMetricsRequest.class);
     GetClusterMetricsResponse response = rmClient.getClusterMetrics(request);
@@ -204,7 +206,8 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
   }
 
   @Override
-  public List<NodeReport> getNodeReports() throws YarnRemoteException {
+  public List<NodeReport> getNodeReports() throws YarnRemoteException,
+      IOException {
     GetClusterNodesRequest request =
         Records.newRecord(GetClusterNodesRequest.class);
     GetClusterNodesResponse response = rmClient.getClusterNodes(request);
@@ -213,7 +216,7 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
 
   @Override
   public DelegationToken getRMDelegationToken(Text renewer)
-      throws YarnRemoteException {
+      throws YarnRemoteException, IOException {
     /* get the token from RM */
     GetDelegationTokenRequest rmDTRequest =
         Records.newRecord(GetDelegationTokenRequest.class);
@@ -236,7 +239,8 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
   }
 
   @Override
-  public QueueInfo getQueueInfo(String queueName) throws YarnRemoteException {
+  public QueueInfo getQueueInfo(String queueName) throws YarnRemoteException,
+      IOException {
     GetQueueInfoRequest request =
         getQueueInfoRequest(queueName, true, false, false);
     Records.newRecord(GetQueueInfoRequest.class);
@@ -244,14 +248,16 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
   }
 
   @Override
-  public List<QueueUserACLInfo> getQueueAclsInfo() throws YarnRemoteException {
+  public List<QueueUserACLInfo> getQueueAclsInfo() throws YarnRemoteException,
+      IOException {
     GetQueueUserAclsInfoRequest request =
         Records.newRecord(GetQueueUserAclsInfoRequest.class);
     return rmClient.getQueueUserAcls(request).getUserAclsInfoList();
   }
 
   @Override
-  public List<QueueInfo> getAllQueues() throws YarnRemoteException {
+  public List<QueueInfo> getAllQueues() throws YarnRemoteException,
+      IOException {
     List<QueueInfo> queues = new ArrayList<QueueInfo>();
 
     QueueInfo rootQueue =
@@ -262,7 +268,8 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
   }
 
   @Override
-  public List<QueueInfo> getRootQueueInfos() throws YarnRemoteException {
+  public List<QueueInfo> getRootQueueInfos() throws YarnRemoteException,
+      IOException {
     List<QueueInfo> queues = new ArrayList<QueueInfo>();
 
     QueueInfo rootQueue =
@@ -274,7 +281,7 @@ public class YarnClientImpl extends AbstractService implements YarnClient {
 
   @Override
   public List<QueueInfo> getChildQueueInfos(String parent)
-      throws YarnRemoteException {
+      throws YarnRemoteException, IOException {
     List<QueueInfo> queues = new ArrayList<QueueInfo>();
 
     QueueInfo parentQueue =

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java

@@ -91,8 +91,9 @@ public class ApplicationCLI extends YarnCLI {
    * Lists all the applications present in the Resource Manager
    * 
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  private void listAllApplications() throws YarnRemoteException {
+  private void listAllApplications() throws YarnRemoteException, IOException {
     PrintWriter writer = new PrintWriter(sysout);
     List<ApplicationReport> appsReport = client.getApplicationList();
 
@@ -117,8 +118,10 @@ public class ApplicationCLI extends YarnCLI {
    * 
    * @param applicationId
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  private void killApplication(String applicationId) throws YarnRemoteException {
+  private void killApplication(String applicationId)
+      throws YarnRemoteException, IOException {
     ApplicationId appId = ConverterUtils.toApplicationId(applicationId);
     sysout.println("Killing application " + applicationId);
     client.killApplication(appId);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/NodeCLI.java

@@ -84,8 +84,9 @@ public class NodeCLI extends YarnCLI {
    * Lists all the nodes present in the cluster
    * 
    * @throws YarnRemoteException
+   * @throws IOException
    */
-  private void listClusterNodes() throws YarnRemoteException {
+  private void listClusterNodes() throws YarnRemoteException, IOException {
     PrintWriter writer = new PrintWriter(sysout);
     List<NodeReport> nodesReport = client.getNodeReports();
     writer.println("Total Nodes:" + nodesReport.size());

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/TestAMRMClient.java

@@ -23,6 +23,7 @@ import static org.mockito.Matchers.any;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
+import java.io.IOException;
 import java.util.List;
 import java.util.Set;
 import java.util.TreeSet;
@@ -69,7 +70,7 @@ public class TestAMRMClient {
   int nodeCount = 3;
   
   @Before
-  public void setup() throws YarnRemoteException {
+  public void setup() throws YarnRemoteException, IOException {
     // start minicluster
     conf = new YarnConfiguration();
     yarnCluster = new MiniYARNCluster(TestAMRMClient.class.getName(), nodeCount, 1, 1);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/TestYarnClient.java

@@ -23,6 +23,9 @@ import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
+
+import java.io.IOException;
+
 import junit.framework.Assert;
 
 import org.apache.hadoop.conf.Configuration;
@@ -89,6 +92,8 @@ public class TestYarnClient {
         client.submitApplication(context);
       } catch (YarnRemoteException e) {
         Assert.fail("Exception is not expected.");
+      } catch (IOException e) {
+        Assert.fail("Exception is not expected.");
       }
       verify(((MockYarnClient) client).mockReport,times(4 * i + 4))
           .getYarnApplicationState();
@@ -115,6 +120,8 @@ public class TestYarnClient {
             GetApplicationReportRequest.class))).thenReturn(mockResponse);
       } catch (YarnRemoteException e) {
         Assert.fail("Exception is not expected.");
+      } catch (IOException e) {
+        Assert.fail("Exception is not expected.");
       }
       when(mockResponse.getApplicationReport()).thenReturn(mockReport);
     }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/impl/pb/client/ClientRMProtocolPBClientImpl.java

@@ -113,7 +113,7 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public KillApplicationResponse forceKillApplication(
-      KillApplicationRequest request) throws YarnRemoteException {
+      KillApplicationRequest request) throws YarnRemoteException, IOException {
     KillApplicationRequestProto requestProto =
         ((KillApplicationRequestPBImpl) request).getProto();
     try {
@@ -126,7 +126,8 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public GetApplicationReportResponse getApplicationReport(
-      GetApplicationReportRequest request) throws YarnRemoteException {
+      GetApplicationReportRequest request) throws YarnRemoteException,
+      IOException {
     GetApplicationReportRequestProto requestProto =
         ((GetApplicationReportRequestPBImpl) request).getProto();
     try {
@@ -139,7 +140,8 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public GetClusterMetricsResponse getClusterMetrics(
-      GetClusterMetricsRequest request) throws YarnRemoteException {
+      GetClusterMetricsRequest request) throws YarnRemoteException,
+      IOException {
     GetClusterMetricsRequestProto requestProto =
         ((GetClusterMetricsRequestPBImpl) request).getProto();
     try {
@@ -152,7 +154,8 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public GetNewApplicationResponse getNewApplication(
-      GetNewApplicationRequest request) throws YarnRemoteException {
+      GetNewApplicationRequest request) throws YarnRemoteException,
+      IOException {
     GetNewApplicationRequestProto requestProto =
         ((GetNewApplicationRequestPBImpl) request).getProto();
     try {
@@ -165,7 +168,8 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public SubmitApplicationResponse submitApplication(
-      SubmitApplicationRequest request) throws YarnRemoteException {
+      SubmitApplicationRequest request) throws YarnRemoteException,
+      IOException {
     SubmitApplicationRequestProto requestProto =
         ((SubmitApplicationRequestPBImpl) request).getProto();
     try {
@@ -178,7 +182,8 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public GetAllApplicationsResponse getAllApplications(
-      GetAllApplicationsRequest request) throws YarnRemoteException {
+      GetAllApplicationsRequest request) throws YarnRemoteException,
+      IOException {
     GetAllApplicationsRequestProto requestProto =
         ((GetAllApplicationsRequestPBImpl) request).getProto();
     try {
@@ -192,7 +197,7 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
   @Override
   public GetClusterNodesResponse
       getClusterNodes(GetClusterNodesRequest request)
-          throws YarnRemoteException {
+          throws YarnRemoteException, IOException {
     GetClusterNodesRequestProto requestProto =
         ((GetClusterNodesRequestPBImpl) request).getProto();
     try {
@@ -205,7 +210,7 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public GetQueueInfoResponse getQueueInfo(GetQueueInfoRequest request)
-      throws YarnRemoteException {
+      throws YarnRemoteException, IOException {
     GetQueueInfoRequestProto requestProto =
         ((GetQueueInfoRequestPBImpl) request).getProto();
     try {
@@ -218,7 +223,8 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public GetQueueUserAclsInfoResponse getQueueUserAcls(
-      GetQueueUserAclsInfoRequest request) throws YarnRemoteException {
+      GetQueueUserAclsInfoRequest request) throws YarnRemoteException,
+      IOException {
     GetQueueUserAclsInfoRequestProto requestProto =
         ((GetQueueUserAclsInfoRequestPBImpl) request).getProto();
     try {
@@ -231,7 +237,8 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public GetDelegationTokenResponse getDelegationToken(
-      GetDelegationTokenRequest request) throws YarnRemoteException {
+      GetDelegationTokenRequest request) throws YarnRemoteException,
+      IOException {
     GetDelegationTokenRequestProto requestProto =
         ((GetDelegationTokenRequestPBImpl) request).getProto();
     try {
@@ -244,7 +251,8 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public RenewDelegationTokenResponse renewDelegationToken(
-      RenewDelegationTokenRequest request) throws YarnRemoteException {
+      RenewDelegationTokenRequest request) throws YarnRemoteException,
+      IOException {
     RenewDelegationTokenRequestProto requestProto = 
         ((RenewDelegationTokenRequestPBImpl) request).getProto();
     try {
@@ -257,7 +265,8 @@ public class ClientRMProtocolPBClientImpl implements ClientRMProtocol,
 
   @Override
   public CancelDelegationTokenResponse cancelDelegationToken(
-      CancelDelegationTokenRequest request) throws YarnRemoteException {
+      CancelDelegationTokenRequest request) throws YarnRemoteException,
+      IOException {
     CancelDelegationTokenRequestProto requestProto =
         ((CancelDelegationTokenRequestPBImpl) request).getProto();
     try {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/api/impl/pb/service/ClientRMProtocolPBServiceImpl.java

@@ -18,6 +18,8 @@
 
 package org.apache.hadoop.yarn.api.impl.pb.service;
 
+import java.io.IOException;
+
 import org.apache.hadoop.security.proto.SecurityProtos.CancelDelegationTokenRequestProto;
 import org.apache.hadoop.security.proto.SecurityProtos.CancelDelegationTokenResponseProto;
 import org.apache.hadoop.security.proto.SecurityProtos.GetDelegationTokenRequestProto;
@@ -102,6 +104,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
       return ((KillApplicationResponsePBImpl)response).getProto();
     } catch (YarnRemoteException e) {
       throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
     }
   }
 
@@ -115,6 +119,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
       return ((GetApplicationReportResponsePBImpl)response).getProto();
     } catch (YarnRemoteException e) {
       throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
     }
   }
 
@@ -127,6 +133,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
       return ((GetClusterMetricsResponsePBImpl)response).getProto();
     } catch (YarnRemoteException e) {
       throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
     }
   }
 
@@ -140,6 +148,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
       return ((GetNewApplicationResponsePBImpl)response).getProto();
     } catch (YarnRemoteException e) {
       throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
     }
   }
 
@@ -152,6 +162,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
       return ((SubmitApplicationResponsePBImpl)response).getProto();
     } catch (YarnRemoteException e) {
       throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
     }
   }
 
@@ -166,6 +178,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
       return ((GetAllApplicationsResponsePBImpl)response).getProto();
     } catch (YarnRemoteException e) {
       throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
     }
   }
 
@@ -179,6 +193,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
       return ((GetClusterNodesResponsePBImpl)response).getProto();
     } catch (YarnRemoteException e) {
       throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
     }
   }
 
@@ -192,6 +208,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
       return ((GetQueueInfoResponsePBImpl)response).getProto();
     } catch (YarnRemoteException e) {
       throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
     }
   }
 
@@ -206,6 +224,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
       return ((GetQueueUserAclsInfoResponsePBImpl)response).getProto();
     } catch (YarnRemoteException e) {
       throw new ServiceException(e);
+    } catch (IOException e) {
+      throw new ServiceException(e);
     }
   }
 
@@ -220,6 +240,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
         return ((GetDelegationTokenResponsePBImpl)response).getProto();
       } catch (YarnRemoteException e) {
         throw new ServiceException(e);
+      } catch (IOException e) {
+        throw new ServiceException(e);
       }
   }
 
@@ -234,6 +256,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
         return ((RenewDelegationTokenResponsePBImpl)response).getProto();
       } catch (YarnRemoteException e) {
         throw new ServiceException(e);
+      } catch (IOException e) {
+        throw new ServiceException(e);
       }
   }
 
@@ -248,6 +272,8 @@ public class ClientRMProtocolPBServiceImpl implements ClientRMProtocolPB {
         return ((CancelDelegationTokenResponsePBImpl)response).getProto();
       } catch (YarnRemoteException e) {
         throw new ServiceException(e);
+      } catch (IOException e) {
+        throw new ServiceException(e);
       }
   }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/MockRM.java

@@ -18,6 +18,7 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager;
 
+import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.security.PrivilegedAction;
 import java.util.Map;
@@ -199,6 +200,8 @@ public class MockRM extends ResourceManager {
           return client.submitApplication(req);
         } catch (YarnRemoteException e) {
           e.printStackTrace();
+        } catch (IOException e) {
+          e.printStackTrace();
         }
         return null;
       }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestClientRMTokens.java

@@ -339,7 +339,7 @@ public class TestClientRMTokens {
     DelegationToken token = loggedInUser
         .doAs(new PrivilegedExceptionAction<DelegationToken>() {
           @Override
-          public DelegationToken run() throws YarnRemoteException {
+          public DelegationToken run() throws YarnRemoteException, IOException {
             GetDelegationTokenRequest request = Records
                 .newRecord(GetDelegationTokenRequest.class);
             request.setRenewer(renewerString);
@@ -355,7 +355,7 @@ public class TestClientRMTokens {
       throws IOException, InterruptedException {
     long nextExpTime = loggedInUser.doAs(new PrivilegedExceptionAction<Long>() {
       @Override
-      public Long run() throws YarnRemoteException {
+      public Long run() throws YarnRemoteException, IOException {
         RenewDelegationTokenRequest request = Records
             .newRecord(RenewDelegationTokenRequest.class);
         request.setDelegationToken(dToken);
@@ -371,7 +371,7 @@ public class TestClientRMTokens {
       throws IOException, InterruptedException {
     loggedInUser.doAs(new PrivilegedExceptionAction<Void>() {
       @Override
-      public Void run() throws YarnRemoteException {
+      public Void run() throws YarnRemoteException, IOException {
         CancelDelegationTokenRequest request = Records
             .newRecord(CancelDelegationTokenRequest.class);
         request.setDelegationToken(dToken);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/AppReportFetcher.java

@@ -18,6 +18,7 @@
 
 package org.apache.hadoop.yarn.server.webproxy;
 
+import java.io.IOException;
 import java.net.InetSocketAddress;
 
 import org.apache.commons.logging.Log;
@@ -78,9 +79,10 @@ public class AppReportFetcher {
    * @param appId the id of the application to get. 
    * @return the ApplicationReport for that app.
    * @throws YarnRemoteException on any error.
+   * @throws IOException
    */
   public ApplicationReport getApplicationReport(ApplicationId appId)
-  throws YarnRemoteException {
+  throws YarnRemoteException, IOException {
     GetApplicationReportRequest request = recordFactory
         .newRecordInstance(GetApplicationReportRequest.class);
     request.setApplicationId(appId);