org.apache.hadoop.hive.metastore

Class Deadline

java.lang.Object

org.apache.hadoop.hive.metastore.Deadline

public class Deadline
extends Object

This class is used to monitor long running methods in a thread. It is recommended to use it as a ThreadLocal variable.

Method Summary

Methods

Modifier and Type	Method and Description
static void	checkTimeout() Check whether the long running method timeout.
static void	clear() remove the registered Deadline threadlocal object from current thread.
static boolean	isStarted() Check whether the timer is started.
static void	registerIfNot(long timeout) register a Deadline threadlocal object to current thread.
static void	resetTimeout(long timeout) reset the timeout value of this timer.
static void	startTimer(String method) start the timer before a method is invoked.
static void	stopTimer() end the time after a method is done.

Methods inherited from class java.lang.Object

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

Method Detail

registerIfNot

public static void registerIfNot(long timeout)

register a Deadline threadlocal object to current thread.

Parameters:

timeout -

resetTimeout

public static void resetTimeout(long timeout)
                         throws MetaException

reset the timeout value of this timer.

Parameters:

timeout -

Throws:

MetaException

isStarted

public static boolean isStarted()
                         throws MetaException

Check whether the timer is started.

Returns:

Throws:

MetaException

startTimer

public static void startTimer(String method)
                       throws MetaException

start the timer before a method is invoked.

Parameters:

method -

Throws:

MetaException

stopTimer

public static void stopTimer()
                      throws MetaException

end the time after a method is done.

Throws:

MetaException

clear

public static void clear()

remove the registered Deadline threadlocal object from current thread.

checkTimeout

public static void checkTimeout()
                         throws MetaException

Check whether the long running method timeout.

Throws:

DeadlineException - when the method timeout

MetaException