Package org.apache.hadoop.ozone.container.metadata

Class DatanodeSchemaOneDBDefinition

java.lang.Object

org.apache.hadoop.ozone.container.metadata.AbstractDatanodeDBDefinition

org.apache.hadoop.ozone.container.metadata.DatanodeSchemaOneDBDefinition

All Implemented Interfaces:

org.apache.hadoop.hdds.utils.db.DBDefinition

public class DatanodeSchemaOneDBDefinition
extends AbstractDatanodeDBDefinition

This class allows support of the schema version one RocksDB layout for datanode, where all data is kept in the same default table. Clients can use this class as if the database is in the new format (which has separate column families for block data, metadata and deleted block IDs), even though all tables map back to the default table in this implementation.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hdds.utils.db.DBDefinition

org.apache.hadoop.hdds.utils.db.DBDefinition.WithMap, org.apache.hadoop.hdds.utils.db.DBDefinition.WithMapInterface

Field Summary

Fields

Modifier and Type	Field	Description
static final org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.BlockData>	BLOCK_DATA
static final org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.ChunkInfoList>	DELETED_BLOCKS
static final org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,Long>	METADATA

Fields inherited from interface org.apache.hadoop.hdds.utils.db.DBDefinition

LOG

Constructor Summary

Constructors

Constructor	Description
DatanodeSchemaOneDBDefinition(String dbPath, org.apache.hadoop.hdds.conf.ConfigurationSource config)

Method Summary

Modifier and Type	Method	Description
org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.BlockData>	getBlockDataColumnFamily()
Iterable<org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<?,?>>	getColumnFamilies()
List<org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<?,?>>	getColumnFamilies(String name)
org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.ChunkInfoList>	getDeletedBlocksColumnFamily()
org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.BlockData>	getLastChunkInfoColumnFamily()
org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,Long>	getMetadataColumnFamily()

Methods inherited from class org.apache.hadoop.ozone.container.metadata.AbstractDatanodeDBDefinition

getConfig, getDBLocation, getFinalizeBlocksColumnFamily, getLocationConfigKey, getName

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hdds.utils.db.DBDefinition

getColumnFamily, getColumnFamilyNames, getOptionsPath

Field Details

BLOCK_DATA

public static final org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.BlockData> BLOCK_DATA

METADATA

public static final org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,Long> METADATA

DELETED_BLOCKS

public static final org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.ChunkInfoList> DELETED_BLOCKS

Constructor Details

DatanodeSchemaOneDBDefinition

public DatanodeSchemaOneDBDefinition(String dbPath,
 org.apache.hadoop.hdds.conf.ConfigurationSource config)

Method Details

getBlockDataColumnFamily

public org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.BlockData> getBlockDataColumnFamily()

Specified by:

getBlockDataColumnFamily in class AbstractDatanodeDBDefinition

getMetadataColumnFamily

public org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,Long> getMetadataColumnFamily()

Specified by:

getMetadataColumnFamily in class AbstractDatanodeDBDefinition

getDeletedBlocksColumnFamily

public org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.ChunkInfoList> getDeletedBlocksColumnFamily()

getLastChunkInfoColumnFamily

public org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<String,org.apache.hadoop.ozone.container.common.helpers.BlockData> getLastChunkInfoColumnFamily()

Specified by:

getLastChunkInfoColumnFamily in class AbstractDatanodeDBDefinition

getColumnFamilies

public List<org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<?,?>> getColumnFamilies(String name)

getColumnFamilies

public Iterable<org.apache.hadoop.hdds.utils.db.DBColumnFamilyDefinition<?,?>> getColumnFamilies()