Package com.sleepycat.je.cleaner

INTERNAL: disk garbage collection.

See: Description

Class Summary

Class	Description
BaseUtilizationTracker	Shared implementation for all utilization trackers.
Cleaner	The Cleaner is responsible for effectively garbage collecting the JE log.
CleanerStatDefinition	Per-stat Metadata for JE cleaner statistics.
DataEraser	Erases obsolete data from disk during a configured interval.
DbFileSummary	Per-DB-per-file utilization counters.
DbFileSummaryMap
EraserStatDefinition
ExpirationProfile	A cache of the histograms for all files, except for the last file.
ExpirationTracker	Tracks the expired bytes in each time window, i.e., a histogram.
ExtinctionScanner	Performs async processing for Record Extinction and Database Extinction, via the RecordExtinction and DatabaseExtinction tasks.
FileProcessor	Reads all entries in a log file and either determines them to be obsolete or active.
FileProtector	The FileProtector is primarily responsible for protecting files from being deleted due to log cleaning, when they are needed for other purposes.
FileProtector.ProtectedActiveFileSet	A ProtectedFileSet created using FileProtector.protectActiveFiles(java.lang.String).
FileProtector.ProtectedFileRange	A ProtectedFileSet created using FileProtector.protectFileRange(java.lang.String, long).
FileProtector.ProtectedFileSet	A ProtectedFileSet is used to prevent a set of files from being deleted.
FileSelector	Keeps track of the status of files for which cleaning is in progress.
FileSelector.CheckpointStartCleanerState	Holds copy of all checkpoint-dependent cleaner state.
FileSummary	Per-file utilization counters.
INSummary	Used to trace the relative numbers of full INs and BIN-deltas that are obsolete vs active.
LNInfo	The information necessary to lookup an LN.
LocalUtilizationTracker	Accumulates changes to the utilization profile locally in a single thread.
OffsetList	List of LSN offsets as a linked list of segments.
OffsetList.Segment	One segment of a OffsetList containing at most SEGMENT_CAPACITY values.
PackedObsoleteInfo	A sequence of obsolete info.
PackedOffsets	Stores a sorted list of LSN offsets in a packed short representation.
RecoveryUtilizationTracker	Accumulates changes to the utilization profile during recovery.
ReservedFileInfo
TrackedFileSummary	Delta file summary info for a tracked file.
UtilizationCalculator	Contains methods for calculating utilization and for selecting files to clean.
UtilizationProfile	The UP tracks utilization summary information for all log files.
UtilizationTracker	Tracks changes to the utilization profile since the last checkpoint.
VerifyUtils	Verify cleaner data structures

Exception Summary

Exception	Description
EraserAbortException	Thrown by DbBackup.startBackup() if we can't abort erasure within EnvironmentParams.ERASE_ABORT_TIMEOUT.

Package com.sleepycat.je.cleaner Description

INTERNAL: disk garbage collection.