Example usage for org.apache.hadoop.registry.client.types.yarn PersistencePolicies CONTAINER

Introduction

In this page you can find the example usage for org.apache.hadoop.registry.client.types.yarn PersistencePolicies CONTAINER.

Prototype

String CONTAINER

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Document

Remove when the YARN container in the ID field finishes:

Usage

From source file:org.apache.slider.server.appmaster.SliderAppMaster.java

License:Apache License

/**
 * Handler for {@link RegisterComponentInstance action}
 * Register/re-register an ephemeral container that is already in the app state
 * @param id the component/*from  www  .  ja  v a 2s.  c  om*/
 * @param description
 */
public boolean registerComponent(ContainerId id, String description) throws IOException {
    RoleInstance instance = appState.getOwnedContainer(id);
    if (instance == null) {
        return false;
    }
    // this is where component registrations  go
    log.info("Registering component {}", id);
    String cid = RegistryPathUtils.encodeYarnID(id.toString());
    ServiceRecord container = new ServiceRecord();
    container.set(YarnRegistryAttributes.YARN_ID, cid);
    container.description = description;
    container.set(YarnRegistryAttributes.YARN_PERSISTENCE, PersistencePolicies.CONTAINER);
    try {
        yarnRegistryOperations.putComponent(cid, container);
    } catch (IOException e) {
        log.warn("Failed to register container {}/{}: {}", id, description, e, e);
    }
    return true;
}

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