org.apache.flink.runtime.util

类 JvmShutdownSafeguard

java.lang.Object

java.lang.Thread

org.apache.flink.runtime.util.JvmShutdownSafeguard

所有已实现的接口:

Runnable

public class JvmShutdownSafeguard
extends Thread

A utility that guards against blocking shutdown hooks that block JVM shutdown.

When the JVM shuts down cleanly (SIGTERM or System.exit(int)) it runs all installed shutdown hooks. It is possible that any of the shutdown hooks blocks, which causes the JVM to get stuck and not exit at all.

This utility installs a shutdown hook that forcibly terminates the JVM if it is still alive a certain time after clean shutdown was initiated. Even if some shutdown hooks block, the JVM will terminate within a certain time.

嵌套类概要

从类继承的嵌套类/接口 java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

字段概要

从类继承的字段 java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

方法概要

限定符和类型	方法和说明
static void	installAsShutdownHook(org.slf4j.Logger logger) Installs the safeguard shutdown hook.
static void	installAsShutdownHook(org.slf4j.Logger logger, long delayMillis) Installs the safeguard shutdown hook.
void	run()

从类继承的方法 java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

从类继承的方法 java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

方法详细资料

run

public void run()

指定者:

run 在接口中 Runnable

覆盖:

run 在类中 Thread

installAsShutdownHook

public static void installAsShutdownHook(org.slf4j.Logger logger)

Installs the safeguard shutdown hook. The maximum time that the JVM is allowed to spend on shutdown before being killed is five seconds.

参数:

logger - The logger to log errors to.

installAsShutdownHook

public static void installAsShutdownHook(org.slf4j.Logger logger,
                                         long delayMillis)

Installs the safeguard shutdown hook. The maximum time that the JVM is allowed to spend on shutdown before being killed is the given number of milliseconds.

参数:

logger - The logger to log errors to.

delayMillis - The delay (in milliseconds) to wait after clean shutdown was stared, before forcibly terminating the JVM.