org.apache.hadoop.hive.ql.stats

Class StatsUpdaterThread

java.lang.Object

java.lang.Thread

org.apache.hadoop.hive.ql.stats.StatsUpdaterThread

All Implemented Interfaces:

Runnable, org.apache.hadoop.conf.Configurable, MetaStoreThread

public class StatsUpdaterThread
extends Thread
implements MetaStoreThread

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	StatsUpdaterThread.WorkerRunnable

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.hadoop.conf.Configuration	conf
protected AtomicBoolean	looped
static String	SKIP_STATS_AUTOUPDATE_PROPERTY
protected AtomicBoolean	stop
protected int	threadId
static String	WORKER_NAME_PREFIX

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
StatsUpdaterThread()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.conf.Configuration	getConf()
int	getQueueLength()
void	init(AtomicBoolean stop)
void	run()
boolean	runOneIteration()
boolean	runOneWorkerIteration(SessionState ss, String user, HiveConf conf, boolean doWait)
void	setConf(org.apache.hadoop.conf.Configuration conf)
void	waitForQueuedCommands()

Methods inherited from class 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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hive.metastore.MetaStoreThread

start

Field Detail

SKIP_STATS_AUTOUPDATE_PROPERTY

public static final String SKIP_STATS_AUTOUPDATE_PROPERTY

See Also:

Constant Field Values

WORKER_NAME_PREFIX

public static final String WORKER_NAME_PREFIX

See Also:

Constant Field Values

conf

protected org.apache.hadoop.conf.Configuration conf

threadId

protected int threadId

stop

protected AtomicBoolean stop

looped

protected AtomicBoolean looped

Constructor Detail

StatsUpdaterThread

public StatsUpdaterThread()

Method Detail

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable

init

public void init(AtomicBoolean stop)
          throws org.apache.hadoop.hive.metastore.api.MetaException

Specified by:

init in interface MetaStoreThread

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

runOneIteration

public boolean runOneIteration()

runOneWorkerIteration

public boolean runOneWorkerIteration(SessionState ss,
                                     String user,
                                     HiveConf conf,
                                     boolean doWait)
                              throws InterruptedException

Throws:

InterruptedException

waitForQueuedCommands

public void waitForQueuedCommands()
                           throws InterruptedException

Throws:

InterruptedException

getQueueLength

public int getQueueLength()