com.sleepycat.je.log

Class LatchedLogManager

java.lang.Object

com.sleepycat.je.log.LogManager

com.sleepycat.je.log.LatchedLogManager

public class LatchedLogManager
extends LogManager

The LatchedLogManager uses the latches to implement critical sections.

Field Summary

Fields inherited from class com.sleepycat.je.log.LogManager

envImpl, logBufferPool, logWriteLatch

Constructor Summary

Constructors

Constructor and Description
LatchedLogManager(EnvironmentImpl envImpl, boolean readOnly) There is a single log manager per database environment.

Method Summary

Methods

Modifier and Type	Method and Description
void	countObsoleteDb(DatabaseImpl db)
void	countObsoleteINs(java.util.List<java.lang.Long> lsnList, DatabaseImpl nodeDb) Counts the given obsolete IN LSNs under the log write latch.
void	countObsoleteNode(long lsn, LogEntryType type, int size, DatabaseImpl nodeDb) Count node as obsolete under the log write latch.
protected void	flushInternal()
TrackedFileSummary	getUnflushableTrackedSummary(long file) Returns a tracked summary for the given file which will not be flushed.
void	loadEndOfLogStat(EnvironmentStats stats)
boolean	removeDbFileSummary(DatabaseImpl db, java.lang.Long fileNum)
void	removeTrackedFile(TrackedFileSummary tfs) Removes the tracked summary for the given file.
void	transferToUtilizationTracker(LocalUtilizationTracker localTracker)

Methods inherited from class com.sleepycat.je.log.LogManager

flush, flushNoSync, get, getByteBufferFromLog, getChecksumOnRead, getLastLsnAtRecovery, getLogEntry, getLogSource, loadStats, log, log, log, log, logForceFlip, logForceFlush, marshallIntoBuffer, multiLog, removeTrackedFileInternal, resetPool, setLastLsnAtRecovery, setReadHook

Methods inherited from class java.lang.Object

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

Constructor Detail

LatchedLogManager

public LatchedLogManager(EnvironmentImpl envImpl,
                 boolean readOnly)
                  throws DatabaseException

There is a single log manager per database environment.

Throws:

DatabaseException

Method Detail

flushInternal

protected void flushInternal()
                      throws LogException,
                             DatabaseException

Throws:

LogException

DatabaseException

getUnflushableTrackedSummary

public TrackedFileSummary getUnflushableTrackedSummary(long file)
                                                throws DatabaseException

Description copied from class: LogManager

Returns a tracked summary for the given file which will not be flushed. Used for watching changes that occur while a file is being cleaned.

Specified by:

getUnflushableTrackedSummary in class LogManager

Throws:

DatabaseException

See Also:

LogManager#getUnflusableTrackedSummary

removeTrackedFile

public void removeTrackedFile(TrackedFileSummary tfs)
                       throws DatabaseException

Description copied from class: LogManager

Removes the tracked summary for the given file.

Specified by:

removeTrackedFile in class LogManager

Throws:

DatabaseException

See Also:

LogManager.removeTrackedFile(com.sleepycat.je.cleaner.TrackedFileSummary)

countObsoleteNode

public void countObsoleteNode(long lsn,
                     LogEntryType type,
                     int size,
                     DatabaseImpl nodeDb)
                       throws DatabaseException

Description copied from class: LogManager

Count node as obsolete under the log write latch. This is done here because the log write latch is managed here, and all utilization counting must be performed under the log write latch.

Specified by:

countObsoleteNode in class LogManager

Throws:

DatabaseException

See Also:

LogManager#countObsoleteLNs

transferToUtilizationTracker

public void transferToUtilizationTracker(LocalUtilizationTracker localTracker)
                                  throws DatabaseException

Specified by:

transferToUtilizationTracker in class LogManager

Throws:

DatabaseException

See Also:

LogManager.transferToUtilizationTracker(com.sleepycat.je.cleaner.LocalUtilizationTracker)

countObsoleteINs

public void countObsoleteINs(java.util.List<java.lang.Long> lsnList,
                    DatabaseImpl nodeDb)
                      throws DatabaseException

Description copied from class: LogManager

Counts the given obsolete IN LSNs under the log write latch.

Specified by:

countObsoleteINs in class LogManager

Throws:

DatabaseException

See Also:

LogManager.countObsoleteINs(java.util.List<java.lang.Long>, com.sleepycat.je.dbi.DatabaseImpl)

countObsoleteDb

public void countObsoleteDb(DatabaseImpl db)
                     throws DatabaseException

Specified by:

countObsoleteDb in class LogManager

Throws:

DatabaseException

See Also:

LogManager.countObsoleteDb(com.sleepycat.je.dbi.DatabaseImpl)

removeDbFileSummary

public boolean removeDbFileSummary(DatabaseImpl db,
                          java.lang.Long fileNum)
                            throws DatabaseException

Specified by:

removeDbFileSummary in class LogManager

Throws:

DatabaseException

See Also:

LogManager.removeDbFileSummary(com.sleepycat.je.dbi.DatabaseImpl, java.lang.Long)

loadEndOfLogStat

public void loadEndOfLogStat(EnvironmentStats stats)
                      throws DatabaseException

Specified by:

loadEndOfLogStat in class LogManager

Throws:

DatabaseException

See Also:

LogManager.loadEndOfLogStat(com.sleepycat.je.EnvironmentStats)