org.apache.hadoop.hive.ql.txn.compactor

Class MetaStoreCompactorThread

java.lang.Object

java.lang.Thread

org.apache.hadoop.hive.ql.txn.compactor.CompactorThread

org.apache.hadoop.hive.ql.txn.compactor.MetaStoreCompactorThread

All Implemented Interfaces:

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

Direct Known Subclasses:

Cleaner, Initiator

public class MetaStoreCompactorThread
extends CompactorThread
implements MetaStoreThread

Compactor threads that runs in the metastore. It uses a TxnStore to access the internal database.

Nested Class Summary

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

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
protected ScheduledExecutorService	cycleUpdaterExecutorService
protected TxnStore	txnHandler

Fields inherited from class org.apache.hadoop.hive.ql.txn.compactor.CompactorThread

conf, hostName, LOG, runtimeVersion, stop

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
MetaStoreCompactorThread()

Method Summary

Modifier and Type	Method and Description
void	init(AtomicBoolean stop)
protected void	startCycleUpdater(long updateInterval, Runnable taskToRun)
protected void	stopCycleUpdater()
protected static long	updateCycleDurationMetric(String metric, long startedAt)

Methods inherited from class org.apache.hadoop.hive.ql.txn.compactor.CompactorThread

createLockRequest, getConf, getRuntimeVersion, initializeAndStartThread, isMinorCompactionSupported, replIsCompactionDisabledForTable, resolvePartition, resolveStorageDescriptor, runJobAsSelf, setConf, tableName

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, run, 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

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Field Detail

txnHandler

protected TxnStore txnHandler

cycleUpdaterExecutorService

protected ScheduledExecutorService cycleUpdaterExecutorService

Constructor Detail

MetaStoreCompactorThread

public MetaStoreCompactorThread()

Method Detail

init

public void init(AtomicBoolean stop)
          throws Exception

Specified by:

init in interface MetaStoreThread

Overrides:

init in class CompactorThread

Throws:

Exception

startCycleUpdater

protected void startCycleUpdater(long updateInterval,
                                 Runnable taskToRun)

stopCycleUpdater

protected void stopCycleUpdater()

updateCycleDurationMetric

protected static long updateCycleDurationMetric(String metric,
                                                long startedAt)