org.apache.cassandra.config
Class DatabaseDescriptor

java.lang.Object
  org.apache.cassandra.config.DatabaseDescriptor

public class DatabaseDescriptor
extends java.lang.Object

Field Summary

static java.util.UUID

INITIAL_VERSION

Constructor Summary

DatabaseDescriptor()

Method Summary

static void	clearTableDefinition(KSMetaData ksm, java.util.UUID newVersion)
static void	createAllDirectories() Creates all storage-related directories.
static java.lang.String[]	getAllDataFileLocations()
static java.lang.String[]	getAllDataFileLocationsForTable(java.lang.String table) Get a list of data directories for a given table
static IAuthenticator	getAuthenticator()
static IAuthority	getAuthority()
static int	getBMTThreshold()
static CFMetaData	getCFMetaData(Descriptor desc)
static CFMetaData	getCFMetaData(java.lang.Integer cfId)
static CFMetaData	getCFMetaData(java.lang.String tableName, java.lang.String cfName)
static java.lang.String	getClusterName()
static ColumnFamilyType	getColumnFamilyType(java.lang.String tableName, java.lang.String cfName)
static int	getColumnIndexSize()
static java.lang.String	getCommitLogLocation()
static Config.CommitLogSync	getCommitLogSync()
static double	getCommitLogSyncBatchWindow()
static int	getCommitLogSyncPeriod()
static int	getCompactionThreadPriority()
static AbstractType	getComparator(java.lang.CharSequence compareWith)
static AbstractType	getComparator(java.lang.String tableName, java.lang.String cfName)
static int	getConcurrentReaders()
static int	getConcurrentWriters()
static int	getConsistencyThreads()
static java.lang.String	getDataFileLocationForTable(java.lang.String table, long expectedCompactedFileSize)
static java.util.UUID	getDefsVersion()
static Config.DiskAccessMode	getDiskAccessMode()
static double	getDynamicBadnessThreshold()
static int	getDynamicResetInterval()
static int	getDynamicUpdateInterval()
static IEndpointSnitch	getEndpointSnitch()
static int	getFlushWriters()
static Config.DiskAccessMode	getIndexAccessMode()
static int	getIndexedReadBufferSizeInKB()
static java.lang.Integer	getIndexInterval()
static java.lang.String	getInitialToken()
static int	getInMemoryCompactionLimit()
static java.lang.String	getJobJarLocation()
static java.lang.String	getJobTrackerAddress()
static int	getKeysCachedFor(java.lang.String tableName, java.lang.String columnFamilyName, long expectedKeys)
static KSMetaData	getKSMetaData(java.lang.String table)
static java.net.InetAddress	getListenAddress()
static java.lang.String	getNextAvailableDataLocation()
static java.util.List<java.lang.String>	getNonSystemTables()
static IPartitioner	getPartitioner()
static int	getPhiConvictThreshold()
static IRequestScheduler	getRequestScheduler()
static Config.RequestSchedulerId	getRequestSchedulerId()
static RequestSchedulerOptions	getRequestSchedulerOptions()
static int	getRowsCachedFor(java.lang.String tableName, java.lang.String columnFamilyName, long expectedRows)
static java.net.InetAddress	getRpcAddress()
static boolean	getRpcKeepAlive()
static int	getRpcPort()
static java.lang.Integer	getRpcRecvBufferSize()
static java.lang.Integer	getRpcSendBufferSize()
static long	getRpcTimeout()
static java.lang.String	getSavedCachesLocation()
static java.util.Set<java.net.InetAddress>	getSeeds()
static java.io.File	getSerializedKeyCachePath(java.lang.String ksName, java.lang.String cfName)
static java.io.File	getSerializedRowCachePath(java.lang.String ksName, java.lang.String cfName)
static int	getSlicedReadBufferSizeInKB()
static int	getStoragePort()
static AbstractType	getSubComparator(java.lang.String tableName, java.lang.String cfName)
static KSMetaData	getTableDefinition(java.lang.String table)
static java.util.Map<java.lang.String,CFMetaData>	getTableMetaData(java.lang.String tableName)
static java.util.Set<java.lang.String>	getTables()
static int	getThriftFramedTransportSize()
static int	getThriftMaxMessageLength()
static AbstractType	getValueValidator(java.lang.String keyspace, java.lang.String cf, java.nio.ByteBuffer column)
static boolean	hintedHandoffEnabled()
static boolean	isAutoBootstrap()
static boolean	isSnapshotBeforeCompaction()
static boolean	isThriftFramed()
static void	loadSchemas() load keyspace (table) definitions, but do not initialize the table instances.
static java.util.Collection<KSMetaData>	readTablesFromYaml() reads xml.
static void	setTableDefinition(KSMetaData ksm, java.util.UUID newVersion)

Methods inherited from class java.lang.Object

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

Field Detail

INITIAL_VERSION

public static final java.util.UUID INITIAL_VERSION

Constructor Detail

DatabaseDescriptor

public DatabaseDescriptor()

Method Detail

loadSchemas

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

load keyspace (table) definitions, but do not initialize the table instances.

Throws:

java.io.IOException

readTablesFromYaml

public static java.util.Collection<KSMetaData> readTablesFromYaml()
                                                           throws ConfigurationException

reads xml. doesn't populate any internal structures.

Throws:

ConfigurationException

getAuthenticator

public static IAuthenticator getAuthenticator()

getAuthority

public static IAuthority getAuthority()

isThriftFramed

public static boolean isThriftFramed()

getThriftMaxMessageLength

public static int getThriftMaxMessageLength()

getThriftFramedTransportSize

public static int getThriftFramedTransportSize()

getComparator

public static AbstractType getComparator(java.lang.CharSequence compareWith)
                                  throws ConfigurationException

Throws:

ConfigurationException

createAllDirectories

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

Creates all storage-related directories.

Throws:

java.io.IOException - when a disk problem is encountered.

getPartitioner

public static IPartitioner getPartitioner()

getEndpointSnitch

public static IEndpointSnitch getEndpointSnitch()

getRequestScheduler

public static IRequestScheduler getRequestScheduler()

getRequestSchedulerOptions

public static RequestSchedulerOptions getRequestSchedulerOptions()

getRequestSchedulerId

public static Config.RequestSchedulerId getRequestSchedulerId()

getKSMetaData

public static KSMetaData getKSMetaData(java.lang.String table)

getJobTrackerAddress

public static java.lang.String getJobTrackerAddress()

getColumnIndexSize

public static int getColumnIndexSize()

getInitialToken

public static java.lang.String getInitialToken()

getClusterName

public static java.lang.String getClusterName()

getJobJarLocation

public static java.lang.String getJobJarLocation()

getTableMetaData

public static java.util.Map<java.lang.String,CFMetaData> getTableMetaData(java.lang.String tableName)

getCFMetaData

public static CFMetaData getCFMetaData(java.lang.String tableName,
                                       java.lang.String cfName)

getCFMetaData

public static CFMetaData getCFMetaData(java.lang.Integer cfId)

getColumnFamilyType

public static ColumnFamilyType getColumnFamilyType(java.lang.String tableName,
                                                   java.lang.String cfName)

getTables

public static java.util.Set<java.lang.String> getTables()

getNonSystemTables

public static java.util.List<java.lang.String> getNonSystemTables()

getStoragePort

public static int getStoragePort()

getRpcPort

public static int getRpcPort()

getRpcTimeout

public static long getRpcTimeout()

getPhiConvictThreshold

public static int getPhiConvictThreshold()

getConsistencyThreads

public static int getConsistencyThreads()

getConcurrentReaders

public static int getConcurrentReaders()

getConcurrentWriters

public static int getConcurrentWriters()

getFlushWriters

public static int getFlushWriters()

getInMemoryCompactionLimit

public static int getInMemoryCompactionLimit()

getAllDataFileLocations

public static java.lang.String[] getAllDataFileLocations()

getAllDataFileLocationsForTable

public static java.lang.String[] getAllDataFileLocationsForTable(java.lang.String table)

Get a list of data directories for a given table

Parameters:

table - name of the table.

Returns:

an array of path to the data directories.

getNextAvailableDataLocation

public static java.lang.String getNextAvailableDataLocation()

getCommitLogLocation

public static java.lang.String getCommitLogLocation()

getSavedCachesLocation

public static java.lang.String getSavedCachesLocation()

getSeeds

public static java.util.Set<java.net.InetAddress> getSeeds()

getDataFileLocationForTable

public static java.lang.String getDataFileLocationForTable(java.lang.String table,
                                                           long expectedCompactedFileSize)

getComparator

public static AbstractType getComparator(java.lang.String tableName,
                                         java.lang.String cfName)

getSubComparator

public static AbstractType getSubComparator(java.lang.String tableName,
                                            java.lang.String cfName)

getKeysCachedFor

public static int getKeysCachedFor(java.lang.String tableName,
                                   java.lang.String columnFamilyName,
                                   long expectedKeys)

Returns:

The absolute number of keys that should be cached per table.

getRowsCachedFor

public static int getRowsCachedFor(java.lang.String tableName,
                                   java.lang.String columnFamilyName,
                                   long expectedRows)

Returns:

The absolute number of rows that should be cached for the columnfamily.

getTableDefinition

public static KSMetaData getTableDefinition(java.lang.String table)

setTableDefinition

public static void setTableDefinition(KSMetaData ksm,
                                      java.util.UUID newVersion)

clearTableDefinition

public static void clearTableDefinition(KSMetaData ksm,
                                        java.util.UUID newVersion)

getDefsVersion

public static java.util.UUID getDefsVersion()

getListenAddress

public static java.net.InetAddress getListenAddress()

getRpcAddress

public static java.net.InetAddress getRpcAddress()

getRpcKeepAlive

public static boolean getRpcKeepAlive()

getRpcSendBufferSize

public static java.lang.Integer getRpcSendBufferSize()

getRpcRecvBufferSize

public static java.lang.Integer getRpcRecvBufferSize()

getCommitLogSyncBatchWindow

public static double getCommitLogSyncBatchWindow()

getCommitLogSyncPeriod

public static int getCommitLogSyncPeriod()

getCommitLogSync

public static Config.CommitLogSync getCommitLogSync()

getDiskAccessMode

public static Config.DiskAccessMode getDiskAccessMode()

getIndexAccessMode

public static Config.DiskAccessMode getIndexAccessMode()

getIndexedReadBufferSizeInKB

public static int getIndexedReadBufferSizeInKB()

getSlicedReadBufferSizeInKB

public static int getSlicedReadBufferSizeInKB()

getBMTThreshold

public static int getBMTThreshold()

getCompactionThreadPriority

public static int getCompactionThreadPriority()

isSnapshotBeforeCompaction

public static boolean isSnapshotBeforeCompaction()

isAutoBootstrap

public static boolean isAutoBootstrap()

hintedHandoffEnabled

public static boolean hintedHandoffEnabled()

getValueValidator

public static AbstractType getValueValidator(java.lang.String keyspace,
                                             java.lang.String cf,
                                             java.nio.ByteBuffer column)

getCFMetaData

public static CFMetaData getCFMetaData(Descriptor desc)

getIndexInterval

public static java.lang.Integer getIndexInterval()

getSerializedRowCachePath

public static java.io.File getSerializedRowCachePath(java.lang.String ksName,
                                                     java.lang.String cfName)

getSerializedKeyCachePath

public static java.io.File getSerializedKeyCachePath(java.lang.String ksName,
                                                     java.lang.String cfName)

getDynamicUpdateInterval

public static int getDynamicUpdateInterval()

getDynamicResetInterval

public static int getDynamicResetInterval()

getDynamicBadnessThreshold

public static double getDynamicBadnessThreshold()