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Java ContainerReacquisitionContext.getContainer方法代码示例

本文整理汇总了Java中org.apache.hadoop.yarn.server.nodemanager.executor.ContainerReacquisitionContext.getContainer方法的典型用法代码示例。如果您正苦于以下问题:Java ContainerReacquisitionContext.getContainer方法的具体用法?Java ContainerReacquisitionContext.getContainer怎么用?Java ContainerReacquisitionContext.getContainer使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在org.apache.hadoop.yarn.server.nodemanager.executor.ContainerReacquisitionContext的用法示例。


在下文中一共展示了ContainerReacquisitionContext.getContainer方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: reacquireContainer

import org.apache.hadoop.yarn.server.nodemanager.executor.ContainerReacquisitionContext; //导入方法依赖的package包/类
/**
 * Recover an already existing container. This is a blocking call and returns
 * only when the container exits.  Note that the container must have been
 * activated prior to this call.
 * @param ctx encapsulates information necessary to reacquire container
 * @return The exit code of the pre-existing container
 * @throws IOException
 * @throws InterruptedException 
 */
public int reacquireContainer(ContainerReacquisitionContext ctx)
    throws IOException, InterruptedException {
  Container container = ctx.getContainer();
  String user = ctx.getUser();
  ContainerId containerId = ctx.getContainerId();


  Path pidPath = getPidFilePath(containerId);
  if (pidPath == null) {
    LOG.warn(containerId + " is not active, returning terminated error");
    return ExitCode.TERMINATED.getExitCode();
  }

  String pid = null;
  pid = ProcessIdFileReader.getProcessId(pidPath);
  if (pid == null) {
    throw new IOException("Unable to determine pid for " + containerId);
  }

  LOG.info("Reacquiring " + containerId + " with pid " + pid);
  ContainerLivenessContext livenessContext = new ContainerLivenessContext
      .Builder()
      .setContainer(container)
      .setUser(user)
      .setPid(pid)
      .build();
  while(isContainerAlive(livenessContext)) {
    Thread.sleep(1000);
  }

  // wait for exit code file to appear
  String exitCodeFile = ContainerLaunch.getExitCodeFile(pidPath.toString());
  File file = new File(exitCodeFile);
  final int sleepMsec = 100;
  int msecLeft = 2000;
  while (!file.exists() && msecLeft >= 0) {
    if (!isContainerActive(containerId)) {
      LOG.info(containerId + " was deactivated");
      return ExitCode.TERMINATED.getExitCode();
    }
    
    Thread.sleep(sleepMsec);
    
    msecLeft -= sleepMsec;
  }
  if (msecLeft < 0) {
    throw new IOException("Timeout while waiting for exit code from "
        + containerId);
  }

  try {
    return Integer.parseInt(FileUtils.readFileToString(file).trim());
  } catch (NumberFormatException e) {
    throw new IOException("Error parsing exit code from pid " + pid, e);
  }
}
 
开发者ID:naver,项目名称:hadoop,代码行数:66,代码来源:ContainerExecutor.java


注:本文中的org.apache.hadoop.yarn.server.nodemanager.executor.ContainerReacquisitionContext.getContainer方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。