YARN-787. Removed minimum resource from RegisterApplicationMasterResponse. Contributed by Alejandro Abdelnur.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1493509 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskAttemptImpl.java

@@ -122,6 +122,7 @@ import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.URL;
+import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
 import org.apache.hadoop.yarn.factories.RecordFactory;
@@ -1245,9 +1246,9 @@ public abstract class TaskAttemptImpl implements
     int slotMemoryReq =
         taskAttempt.getMemoryRequired(taskAttempt.conf, taskType);
 
-    int minSlotMemSize =
-        taskAttempt.appContext.getClusterInfo().getMinContainerCapability()
-            .getMemory();
+    int minSlotMemSize = taskAttempt.conf.getInt(
+      YarnConfiguration.RM_SCHEDULER_MINIMUM_ALLOCATION_MB,
+      YarnConfiguration.DEFAULT_RM_SCHEDULER_MINIMUM_ALLOCATION_MB);
 
     int simSlotsRequired =
         minSlotMemSize == 0 ? 0 : (int) Math.ceil((float) slotMemoryReq

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MRApp.java

@@ -220,13 +220,9 @@ public class MRApp extends MRAppMaster {
     
     super.serviceInit(conf);
     if (this.clusterInfo != null) {
-      getContext().getClusterInfo().setMinContainerCapability(
-          this.clusterInfo.getMinContainerCapability());
       getContext().getClusterInfo().setMaxContainerCapability(
           this.clusterInfo.getMaxContainerCapability());
     } else {
-      getContext().getClusterInfo().setMinContainerCapability(
-          Resource.newInstance(1024, 1));
       getContext().getClusterInfo().setMaxContainerCapability(
           Resource.newInstance(10240, 1));
     }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/MRAppBenchmark.java

@@ -204,8 +204,6 @@ public class MRAppBenchmark {
                       throws IOException {
                 RegisterApplicationMasterResponse response =
                     Records.newRecord(RegisterApplicationMasterResponse.class);
-                response.setMinimumResourceCapability(Resource.newInstance(
-                  1024, 1));
                 response.setMaximumResourceCapability(Resource.newInstance(
                   10240, 1));
                 return response;

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRMContainerAllocator.java

@@ -1329,8 +1329,7 @@ public class TestRMContainerAllocator {
       when(context.getApplicationAttemptId()).thenReturn(appAttemptId);
       when(context.getJob(isA(JobId.class))).thenReturn(job);
       when(context.getClusterInfo()).thenReturn(
-        new ClusterInfo(Resource.newInstance(1024, 1), Resource.newInstance(
-          10240, 1)));
+        new ClusterInfo(Resource.newInstance(10240, 1)));
       when(context.getEventHandler()).thenReturn(new EventHandler() {
         @Override
         public void handle(Event event) {

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestRecovery.java

@@ -1424,8 +1424,6 @@ public class TestRecovery {
     when(minContainerRequirements.getMemory()).thenReturn(1000);
 
     ClusterInfo clusterInfo = mock(ClusterInfo.class);
-    when(clusterInfo.getMinContainerCapability()).thenReturn(
-        minContainerRequirements);
     AppContext appContext = mock(AppContext.class);
     when(appContext.getClusterInfo()).thenReturn(clusterInfo);
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestTaskAttempt.java

@@ -82,6 +82,7 @@ import org.apache.hadoop.yarn.api.records.Container;
 import org.apache.hadoop.yarn.api.records.ContainerId;
 import org.apache.hadoop.yarn.api.records.NodeId;
 import org.apache.hadoop.yarn.api.records.Resource;
+import org.apache.hadoop.yarn.conf.YarnConfiguration;
 import org.apache.hadoop.yarn.event.Event;
 import org.apache.hadoop.yarn.event.EventHandler;
 import org.junit.Test;
@@ -197,8 +198,9 @@ public class TestTaskAttempt{
     Configuration conf = new Configuration();
     conf.setInt(MRJobConfig.MAP_MEMORY_MB, mapMemMb);
     conf.setInt(MRJobConfig.REDUCE_MEMORY_MB, reduceMemMb);
-    app.setClusterInfo(new ClusterInfo(Resource
-      .newInstance(minContainerSize, 1), Resource.newInstance(10240, 1)));
+    conf.setInt(YarnConfiguration.RM_SCHEDULER_MINIMUM_ALLOCATION_MB, 
+      minContainerSize);
+    app.setClusterInfo(new ClusterInfo(Resource.newInstance(10240, 1)));
 
     Job job = app.submit(conf);
     app.waitForState(job, JobState.RUNNING);
@@ -392,7 +394,6 @@ public class TestTaskAttempt{
     ClusterInfo clusterInfo = mock(ClusterInfo.class);
     Resource resource = mock(Resource.class);
     when(appCtx.getClusterInfo()).thenReturn(clusterInfo);
-    when(clusterInfo.getMinContainerCapability()).thenReturn(resource);
     when(resource.getMemory()).thenReturn(1024);
 
     TaskAttemptImpl taImpl =
@@ -450,7 +451,6 @@ public class TestTaskAttempt{
     ClusterInfo clusterInfo = mock(ClusterInfo.class);
     Resource resource = mock(Resource.class);
     when(appCtx.getClusterInfo()).thenReturn(clusterInfo);
-    when(clusterInfo.getMinContainerCapability()).thenReturn(resource);
     when(resource.getMemory()).thenReturn(1024);
 
     TaskAttemptImpl taImpl =
@@ -511,7 +511,6 @@ public class TestTaskAttempt{
     ClusterInfo clusterInfo = mock(ClusterInfo.class);
     Resource resource = mock(Resource.class);
     when(appCtx.getClusterInfo()).thenReturn(clusterInfo);
-    when(clusterInfo.getMinContainerCapability()).thenReturn(resource);
     when(resource.getMemory()).thenReturn(1024);
 
     TaskAttemptImpl taImpl =
@@ -579,7 +578,6 @@ public class TestTaskAttempt{
     ClusterInfo clusterInfo = mock(ClusterInfo.class);
     Resource resource = mock(Resource.class);
     when(appCtx.getClusterInfo()).thenReturn(clusterInfo);
-    when(clusterInfo.getMinContainerCapability()).thenReturn(resource);
     when(resource.getMemory()).thenReturn(1024);
 
     TaskAttemptImpl taImpl = new MapTaskAttemptImpl(taskId, 1, eventHandler,
@@ -629,7 +627,6 @@ public class TestTaskAttempt{
     ClusterInfo clusterInfo = mock(ClusterInfo.class);
     Resource resource = mock(Resource.class);
     when(appCtx.getClusterInfo()).thenReturn(clusterInfo);
-    when(clusterInfo.getMinContainerCapability()).thenReturn(resource);
     when(resource.getMemory()).thenReturn(1024);
 
     TaskAttemptImpl taImpl = new MapTaskAttemptImpl(taskId, 1, eventHandler,

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/local/TestLocalContainerAllocator.java

@@ -117,8 +117,7 @@ public class TestLocalContainerAllocator {
       when(ctx.getApplicationAttemptId()).thenReturn(attemptId);
       when(ctx.getJob(isA(JobId.class))).thenReturn(job);
       when(ctx.getClusterInfo()).thenReturn(
-        new ClusterInfo(Resource.newInstance(1024, 1), Resource.newInstance(
-          10240, 1)));
+        new ClusterInfo(Resource.newInstance(10240, 1)));
       when(ctx.getEventHandler()).thenReturn(eventHandler);
       return ctx;
     }

hadoop-yarn-project/CHANGES.txt

@@ -149,6 +149,9 @@ Release 2.1.0-beta - UNRELEASED
     YARN-821. Renamed setFinishApplicationStatus to setFinalApplicationStatus in
     FinishApplicationMasterRequest for consistency. (Jian He via vinodk)
 
+    YARN-787. Removed minimum resource from RegisterApplicationMasterResponse.
+    (tucu via acmurthy)
+
   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/protocolrecords/RegisterApplicationMasterResponse.java

@@ -51,24 +51,10 @@ public abstract class RegisterApplicationMasterResponse {
       Map<ApplicationAccessType, String> acls) {
     RegisterApplicationMasterResponse response =
         Records.newRecord(RegisterApplicationMasterResponse.class);
-    response.setMinimumResourceCapability(minCapability);
     response.setMaximumResourceCapability(maxCapability);
     response.setApplicationACLs(acls);
     return response;
   }
-
-  /**
-   * Get the minimum capability for any {@link Resource} allocated by the 
-   * <code>ResourceManager</code> in the cluster.
-   * @return minimum capability of allocated resources in the cluster
-   */
-  @Public
-  @Stable
-  public abstract Resource getMinimumResourceCapability();
-  
-  @Private
-  @Unstable
-  public abstract void setMinimumResourceCapability(Resource capability);
   
   /**
    * Get the maximum capability for any {@link Resource} allocated by the 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/protocolrecords/impl/pb/RegisterApplicationMasterResponsePBImpl.java

@@ -42,7 +42,6 @@ public class RegisterApplicationMasterResponsePBImpl extends
   RegisterApplicationMasterResponseProto.Builder builder = null;
   boolean viaProto = false;
 
-  private Resource minimumResourceCapability;
   private Resource maximumResourceCapability;
   private Map<ApplicationAccessType, String> applicationACLS = null;
 
@@ -91,10 +90,6 @@ public class RegisterApplicationMasterResponsePBImpl extends
   }
 
   private void mergeLocalToBuilder() {
-    if (this.minimumResourceCapability != null) {
-      builder.setMinimumCapability(
-          convertToProtoFormat(this.minimumResourceCapability));
-    }
     if (this.maximumResourceCapability != null) {
       builder.setMaximumCapability(
           convertToProtoFormat(this.maximumResourceCapability));
@@ -127,21 +122,6 @@ public class RegisterApplicationMasterResponsePBImpl extends
     return this.maximumResourceCapability;
   }
 
-  @Override
-  public Resource getMinimumResourceCapability() {
-    if (this.minimumResourceCapability != null) {
-      return this.minimumResourceCapability;
-    }
-
-    RegisterApplicationMasterResponseProtoOrBuilder p = viaProto ? proto : builder;
-    if (!p.hasMinimumCapability()) {
-      return null;
-    }
-
-    this.minimumResourceCapability = convertFromProtoFormat(p.getMinimumCapability());
-    return this.minimumResourceCapability;
-  }
-
   @Override
   public void setMaximumResourceCapability(Resource capability) {
     maybeInitBuilder();
@@ -151,16 +131,6 @@ public class RegisterApplicationMasterResponsePBImpl extends
     this.maximumResourceCapability = capability;
   }
 
-  @Override
-  public void setMinimumResourceCapability(Resource capability) {
-    maybeInitBuilder();
-    if(minimumResourceCapability == null) {
-      builder.clearMinimumCapability();
-    }
-    this.minimumResourceCapability = capability;
-  }
-
-
   @Override
   public Map<ApplicationAccessType, String> getApplicationACLs() {
     initApplicationACLs();

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/proto/yarn_service_protos.proto

@@ -35,9 +35,8 @@ message RegisterApplicationMasterRequestProto {
 }
 
 message RegisterApplicationMasterResponseProto {
-  optional ResourceProto minimumCapability = 1;
-  optional ResourceProto maximumCapability = 2;
-  repeated ApplicationACLMapProto application_ACLs = 3;
+  optional ResourceProto maximumCapability = 1;
+  repeated ApplicationACLMapProto application_ACLs = 2;
 }
 
 message FinishApplicationMasterRequestProto {

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

@@ -463,22 +463,11 @@ public class ApplicationMaster {
             appMasterTrackingUrl);
     // Dump out information about cluster capability as seen by the
     // resource manager
-    int minMem = response.getMinimumResourceCapability().getMemory();
     int maxMem = response.getMaximumResourceCapability().getMemory();
-    LOG.info("Min mem capabililty of resources in this cluster " + minMem);
     LOG.info("Max mem capabililty of resources in this cluster " + maxMem);
 
-    // A resource ask has to be atleast the minimum of the capability of the
-    // cluster, the value has to be a multiple of the min value and cannot
-    // exceed the max.
-    // If it is not an exact multiple of min, the RM will allocate to the
-    // nearest multiple of min
-    if (containerMemory < minMem) {
-      LOG.info("Container memory specified below min threshold of cluster."
-          + " Using min value." + ", specified=" + containerMemory + ", min="
-          + minMem);
-      containerMemory = minMem;
-    } else if (containerMemory > maxMem) {
+    // A resource ask cannot exceed the max.
+    if (containerMemory > maxMem) {
       LOG.info("Container memory specified above max threshold of cluster."
           + " Using max value." + ", specified=" + containerMemory + ", max="
           + maxMem);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/ClusterInfo.java

@@ -22,27 +22,16 @@ import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.util.Records;
 
 public class ClusterInfo {
-  private Resource minContainerCapability;
   private Resource maxContainerCapability;
 
   public ClusterInfo() {
-    this.minContainerCapability = Records.newRecord(Resource.class);
     this.maxContainerCapability = Records.newRecord(Resource.class);
   }
 
-  public ClusterInfo(Resource minCapability, Resource maxCapability) {
-    this.minContainerCapability = minCapability;
+  public ClusterInfo(Resource maxCapability) {
     this.maxContainerCapability = maxCapability;
   }
 
-  public Resource getMinContainerCapability() {
-    return minContainerCapability;
-  }
-
-  public void setMinContainerCapability(Resource minContainerCapability) {
-    this.minContainerCapability = minContainerCapability;
-  }
-
   public Resource getMaxContainerCapability() {
     return maxContainerCapability;
   }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ApplicationMasterService.java

@@ -210,8 +210,6 @@ public class ApplicationMasterService extends AbstractService implements
       // Pick up min/max resource from scheduler...
       RegisterApplicationMasterResponse response = recordFactory
           .newRecordInstance(RegisterApplicationMasterResponse.class);
-      response.setMinimumResourceCapability(rScheduler
-          .getMinimumResourceCapability());
       response.setMaximumResourceCapability(rScheduler
           .getMaximumResourceCapability());
       response.setApplicationACLs(app.getRMAppAttempt(applicationAttemptId)