本文整理汇总了Java中org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor.Signal.KILL属性的典型用法代码示例。如果您正苦于以下问题：Java Signal.KILL属性的具体用法？Java Signal.KILL怎么用？Java Signal.KILL使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor.Signal的用法示例。
在下文中一共展示了Signal.KILL属性的2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: translateCommandToSignal
@VisibleForTesting
public static Signal translateCommandToSignal(
SignalContainerCommand command) {
Signal signal = Signal.NULL;
switch (command) {
case OUTPUT_THREAD_DUMP:
// TODO for windows support.
signal = Shell.WINDOWS ? Signal.NULL: Signal.QUIT;
break;
case GRACEFUL_SHUTDOWN:
signal = Signal.TERM;
break;
case FORCEFUL_SHUTDOWN:
signal = Signal.KILL;
break;
}
return signal;
}
示例2: cleanupContainer
/**
* Cleanup the container.
* Cancels the launch if launch has not started yet or signals
* the executor to not execute the process if not already done so.
* Also, sends a SIGTERM followed by a SIGKILL to the process if
* the process id is available.
* @throws IOException
*/
@SuppressWarnings("unchecked") // dispatcher not typed
public void cleanupContainer() throws IOException {
ContainerId containerId = container.getContainerId();
String containerIdStr = ConverterUtils.toString(containerId);
LOG.info("Cleaning up container " + containerIdStr);
// launch flag will be set to true if process already launched
boolean alreadyLaunched = !shouldLaunchContainer.compareAndSet(false, true);
if (!alreadyLaunched) {
LOG.info("Container " + containerIdStr + " not launched."
+ " No cleanup needed to be done");
return;
}
LOG.debug("Marking container " + containerIdStr + " as inactive");
// this should ensure that if the container process has not launched
// by this time, it will never be launched
exec.deactivateContainer(containerId);
if (LOG.isDebugEnabled()) {
LOG.debug("Getting pid for container " + containerIdStr + " to kill"
+ " from pid file "
+ (pidFilePath != null ? pidFilePath.toString() : "null"));
}
// however the container process may have already started
try {
// get process id from pid file if available
// else if shell is still active, get it from the shell
String processId = null;
if (pidFilePath != null) {
processId = getContainerPid(pidFilePath);
}
// kill process
if (processId != null) {
String user = container.getUser();
LOG.debug("Sending signal to pid " + processId
+ " as user " + user
+ " for container " + containerIdStr);
final Signal signal = sleepDelayBeforeSigKill > 0
? Signal.TERM
: Signal.KILL;
boolean result = exec.signalContainer(user, processId, signal);
LOG.debug("Sent signal " + signal + " to pid " + processId
+ " as user " + user
+ " for container " + containerIdStr
+ ", result=" + (result? "success" : "failed"));
if (sleepDelayBeforeSigKill > 0) {
new DelayedProcessKiller(container, user,
processId, sleepDelayBeforeSigKill, Signal.KILL, exec).start();
}
}
} catch (Exception e) {
String message =
"Exception when trying to cleanup container " + containerIdStr
+ ": " + StringUtils.stringifyException(e);
LOG.warn(message);
dispatcher.getEventHandler().handle(
new ContainerDiagnosticsUpdateEvent(containerId, message));
} finally {
// cleanup pid file if present
if (pidFilePath != null) {
FileContext lfs = FileContext.getLocalFSFileContext();
lfs.delete(pidFilePath, false);
}
}
}