org.apache.cassandra.db.compaction

Class LeveledManifest

java.lang.Object

org.apache.cassandra.db.compaction.LeveledManifest

public class LeveledManifest
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LeveledManifest.CompactionCandidate

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	EXTENSION

Method Summary

Methods

Modifier and Type	Method and Description
void	add(SSTableReader reader)
static LeveledManifest	create(ColumnFamilyStore cfs, int maxSSTableSize, java.lang.Iterable<SSTableReader> sstables, SizeTieredCompactionStrategyOptions options)
static LeveledManifest	create(ColumnFamilyStore cfs, int maxSSTableSize, java.util.List<SSTableReader> sstables)
int[]	getAllLevelSize()
LeveledManifest.CompactionCandidate	getCompactionCandidates()
int	getEstimatedTasks()
java.util.List<SSTableReader>	getLevel(int i)
int	getLevelCount()
int	getLevelSize(int i)
java.util.SortedSet<SSTableReader>	getLevelSorted(int level, java.util.Comparator<SSTableReader> comparator)
int	getNextLevel(java.util.Collection<SSTableReader> sstables)
static void	maybeMigrateManifests()
static void	mutateLevel(Pair<SSTableMetadata,java.util.Set<java.lang.Integer>> oldMetadata, Descriptor descriptor, java.lang.String filename, int level) Scary method mutating existing sstable component Tries to do it safely by moving the new file on top of the old one Caller needs to reload the sstable metadata (sstableReader.reloadSSTableMetadata())
int	remove(SSTableReader reader)
void	repairOverlappingSSTables(int level)
void	replace(java.util.Collection<SSTableReader> removed, java.util.Collection<SSTableReader> added)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

EXTENSION

public static final java.lang.String EXTENSION

See Also:

Constant Field Values

Method Detail

create

public static LeveledManifest create(ColumnFamilyStore cfs,
                     int maxSSTableSize,
                     java.util.List<SSTableReader> sstables)

create

public static LeveledManifest create(ColumnFamilyStore cfs,
                     int maxSSTableSize,
                     java.lang.Iterable<SSTableReader> sstables,
                     SizeTieredCompactionStrategyOptions options)

add

public void add(SSTableReader reader)

replace

public void replace(java.util.Collection<SSTableReader> removed,
           java.util.Collection<SSTableReader> added)

repairOverlappingSSTables

public void repairOverlappingSSTables(int level)

getCompactionCandidates

public LeveledManifest.CompactionCandidate getCompactionCandidates()

Returns:

highest-priority sstables to compact, and level to compact them to If no compactions are necessary, will return null

getLevelSize

public int getLevelSize(int i)

getAllLevelSize

public int[] getAllLevelSize()

remove

public int remove(SSTableReader reader)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getLevelCount

public int getLevelCount()

getLevelSorted

public java.util.SortedSet<SSTableReader> getLevelSorted(int level,
                                                java.util.Comparator<SSTableReader> comparator)

getLevel

public java.util.List<SSTableReader> getLevel(int i)

getEstimatedTasks

public int getEstimatedTasks()

getNextLevel

public int getNextLevel(java.util.Collection<SSTableReader> sstables)

mutateLevel

public static void mutateLevel(Pair<SSTableMetadata,java.util.Set<java.lang.Integer>> oldMetadata,
               Descriptor descriptor,
               java.lang.String filename,
               int level)
                        throws java.io.IOException

Scary method mutating existing sstable component Tries to do it safely by moving the new file on top of the old one Caller needs to reload the sstable metadata (sstableReader.reloadSSTableMetadata())

Parameters:

oldMetadata -

descriptor -

filename -

level -

Throws:

java.io.IOException

See Also:

SSTableReader.reloadSSTableMetadata()

maybeMigrateManifests

public static void maybeMigrateManifests()
                                  throws java.io.IOException

Throws:

java.io.IOException