Examples of org.apache.hadoop.yarn.api.records.ResourceRequest

Package org.apache.hadoop.yarn.api.records

Examples of org.apache.hadoop.yarn.api.records.ResourceRequest

org.apache.hadoop.yarn.api.records.ResourceRequest
ResourceRequest represents the request made by an application to the ResourceManager to obtain various Container allocations.

It includes:
- {@link Priority} of the request.
- The name of the machine or rack on which the allocation is desired. A special value of * signifies that any host/rack is acceptable to the application.
- {@link Resource} required for each request.
- Number of containers, of above specifications, which are required by the application.
- A boolean relaxLocality flag, defaulting to true, which tells the ResourceManager if the application wants locality to be loose (i.e. allows fall-through to rack or any) or strict (i.e. specify hard constraint on resource allocation).
@see Resource @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest)

  }


  protected ResourceRequest createResourceRequest(
      int memory, int vcores, String host, int priority, int numContainers,
      boolean relaxLocality) {
    ResourceRequest request = recordFactory.newRecordInstance(ResourceRequest.class);
    request.setCapability(BuilderUtils.newResource(memory, vcores));
    request.setResourceName(host);
    request.setNumContainers(numContainers);
    Priority prio = recordFactory.newRecordInstance(Priority.class);
    prio.setPriority(priority);
    request.setPriority(prio);
    request.setRelaxLocality(relaxLocality);
    return request;
  }

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    // and no app is added.
    if (scheduler.getSchedulerApplications().containsKey(id.getApplicationId())) {
      scheduler.addApplicationAttempt(id, false, true);
    }
    List<ResourceRequest> ask = new ArrayList<ResourceRequest>();
    ResourceRequest request = createResourceRequest(memory, vcores, ResourceRequest.ANY,
        priority, numContainers, true);
    ask.add(request);
    scheduler.allocate(id, ask,  new ArrayList<ContainerId>(), null, null);
    return id;
  }

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    return id;
  }


  protected void createSchedulingRequestExistingApplication(
       int memory, int priority, ApplicationAttemptId attId) {
    ResourceRequest request = createResourceRequest(memory, ResourceRequest.ANY,
        priority, 1, true);
    createSchedulingRequestExistingApplication(request, attId);
  }

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    return id;
  }


  protected void createSchedulingRequestExistingApplication(
      int memory, int vcores, int priority, ApplicationAttemptId attId) {
    ResourceRequest request = createResourceRequest(memory, vcores, ResourceRequest.ANY,
        priority, 1, true);
    createSchedulingRequestExistingApplication(request, attId);
  }

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    }
  }


  private int getMaxAllocatableContainers(FiCaSchedulerApp application,
      Priority priority, FiCaSchedulerNode node, NodeType type) {
    ResourceRequest offSwitchRequest = 
      application.getResourceRequest(priority, ResourceRequest.ANY);
    int maxContainers = offSwitchRequest.getNumContainers();


    if (type == NodeType.OFF_SWITCH) {
      return maxContainers;
    }


    if (type == NodeType.RACK_LOCAL) {
      ResourceRequest rackLocalRequest = 
        application.getResourceRequest(priority, node.getRMNode().getRackName());
      if (rackLocalRequest == null) {
        return maxContainers;
      }


      maxContainers = Math.min(maxContainers, rackLocalRequest.getNumContainers());
    }


    if (type == NodeType.NODE_LOCAL) {
      ResourceRequest nodeLocalRequest = 
        application.getResourceRequest(priority, node.getRMNode().getNodeAddress());
      if (nodeLocalRequest != null) {
        maxContainers = Math.min(maxContainers, nodeLocalRequest.getNumContainers());
      }
    }


    return maxContainers;
  }

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  }


  private int assignNodeLocalContainers(FiCaSchedulerNode node, 
      FiCaSchedulerApp application, Priority priority) {
    int assignedContainers = 0;
    ResourceRequest request = 
      application.getResourceRequest(priority, node.getNodeName());
    if (request != null) {
      // Don't allocate on this node if we don't need containers on this rack
      ResourceRequest rackRequest =
          application.getResourceRequest(priority, 
              node.getRMNode().getRackName());
      if (rackRequest == null || rackRequest.getNumContainers() <= 0) {
        return 0;
      }
      
      int assignableContainers = 
        Math.min(

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  }


  private int assignRackLocalContainers(FiCaSchedulerNode node, 
      FiCaSchedulerApp application, Priority priority) {
    int assignedContainers = 0;
    ResourceRequest request = 
      application.getResourceRequest(priority, node.getRMNode().getRackName());
    if (request != null) {
      // Don't allocate on this rack if the application doens't need containers
      ResourceRequest offSwitchRequest =
          application.getResourceRequest(priority, ResourceRequest.ANY);
      if (offSwitchRequest.getNumContainers() <= 0) {
        return 0;
      }
      
      int assignableContainers = 
        Math.min(

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  }


  private int assignOffSwitchContainers(FiCaSchedulerNode node, 
      FiCaSchedulerApp application, Priority priority) {
    int assignedContainers = 0;
    ResourceRequest request = 
      application.getResourceRequest(priority, ResourceRequest.ANY);
    if (request != null) {
      assignedContainers = 
        assignContainer(node, application, priority, 
            request.getNumContainers(), request, NodeType.OFF_SWITCH);
    }
    return assignedContainers;
  }

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          continue;
        }
        
        app.addSchedulingOpportunity(priority);


        ResourceRequest rackLocalRequest = app.getResourceRequest(priority,
            node.getRackName());
        ResourceRequest localRequest = app.getResourceRequest(priority,
            node.getNodeName());
        
        if (localRequest != null && !localRequest.getRelaxLocality()) {
          LOG.warn("Relax locality off is not supported on local request: "
              + localRequest);
        }
        
        NodeType allowedLocality = app.getAllowedLocalityLevel(priority,
            scheduler.getNumClusterNodes(), scheduler.getNodeLocalityThreshold(),
            scheduler.getRackLocalityThreshold());
        
        if (rackLocalRequest != null && rackLocalRequest.getNumContainers() != 0
            && localRequest != null && localRequest.getNumContainers() != 0) {
          return assignContainer(node, priority,
              localRequest, NodeType.NODE_LOCAL, reserved);
        }
        
        if (rackLocalRequest != null && !rackLocalRequest.getRelaxLocality()) {
          continue;
        }


        if (rackLocalRequest != null && rackLocalRequest.getNumContainers() != 0
            && (allowedLocality.equals(NodeType.RACK_LOCAL) ||
                allowedLocality.equals(NodeType.OFF_SWITCH))) {
          return assignContainer(node, priority, rackLocalRequest,
              NodeType.RACK_LOCAL, reserved);
        }


        ResourceRequest offSwitchRequest = app.getResourceRequest(priority,
            ResourceRequest.ANY);
        if (offSwitchRequest != null && !offSwitchRequest.getRelaxLocality()) {
          continue;
        }
        
        if (offSwitchRequest != null && offSwitchRequest.getNumContainers() != 0
            && allowedLocality.equals(NodeType.OFF_SWITCH)) {
          return assignContainer(node, priority, offSwitchRequest,
              NodeType.OFF_SWITCH, reserved);
        }
      }

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  /**
   * Whether this app has containers requests that could be satisfied on the
   * given node, if the node had full space.
   */
  public boolean hasContainerForNode(Priority prio, FSSchedulerNode node) {
    ResourceRequest anyRequest = app.getResourceRequest(prio, ResourceRequest.ANY);
    ResourceRequest rackRequest = app.getResourceRequest(prio, node.getRackName());
    ResourceRequest nodeRequest = app.getResourceRequest(prio, node.getNodeName());


    return
        // There must be outstanding requests at the given priority:
        anyRequest != null && anyRequest.getNumContainers() > 0 &&
        // If locality relaxation is turned off at *-level, there must be a
        // non-zero request for the node's rack:
        (anyRequest.getRelaxLocality() ||
            (rackRequest != null && rackRequest.getNumContainers() > 0)) &&
        // If locality relaxation is turned off at rack-level, there must be a
        // non-zero request at the node:
        (rackRequest == null || rackRequest.getRelaxLocality() ||
            (nodeRequest != null && nodeRequest.getNumContainers() > 0)) &&
        // The requested container must be able to fit on the node:
        Resources.lessThanOrEqual(RESOURCE_CALCULATOR, null,
            anyRequest.getCapability(), node.getRMNode().getTotalCapability());
  }

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