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类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);
}
}