Examples of org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest

Package org.apache.hadoop.yarn.api.protocolrecords

Examples of org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest

org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest

The request which contains a list of {@link StartContainerRequest} sent bythe ApplicationMaster to the NodeManager to start containers.

In each {@link StartContainerRequest}, the ApplicationMaster has to provide details such as allocated resource capability, security tokens (if enabled), command to be executed to start the container, environment for the process, necessary binaries/jar/shared-objects etc. via the {@link ContainerLaunchContext}.
@see ContainerManagementProtocol#startContainers(StartContainersRequest)

    StartContainerRequest scRequest =
        StartContainerRequest.newInstance(containerLaunchContext,
          createContainerToken(cId));
    List<StartContainerRequest> list = new ArrayList<StartContainerRequest>();
    list.add(scRequest);
    StartContainersRequest allRequests =
        StartContainersRequest.newInstance(list);
    containerManager.startContainers(allRequests);


    int timeoutSecs = 0;
    while (!processStartFile.exists() && timeoutSecs++ < 20) {

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    StartContainerRequest scRequest =
        StartContainerRequest.newInstance(containerLaunchContext,
          containerToken);
    List<StartContainerRequest> list = new ArrayList<StartContainerRequest>();
    list.add(scRequest);
    StartContainersRequest allRequests =
        StartContainersRequest.newInstance(list);
    containerManager.startContainers(allRequests);


    int timeoutSecs = 0;
    while (!processStartFile.exists() && timeoutSecs++ < 20) {

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