alluxio.worker.block

Interface BlockStoreMeta

All Known Implementing Classes:

DefaultBlockStoreMeta

public interface BlockStoreMeta

Interface for the block store meta in Alluxio.

Method Summary

Modifier and Type	Method and Description
Map<String,List<Long>>	getBlockList() Note: This method is only available when users initialize the blockStoreMeta with full block meta requirement.
Map<BlockStoreLocation,List<Long>>	getBlockListByStorageLocation() Note: This method is only available when users initialize the blockStoreMeta with full block meta requirement.
long	getCapacityBytes()
Map<Pair<String,String>,Long>	getCapacityBytesOnDirs()
Map<String,Long>	getCapacityBytesOnTiers()
Map<String,List<String>>	getDirectoryPathsOnTiers()
Map<String,List<String>>	getLostStorage()
int	getNumberOfBlocks() Note: This is only available when blocks are included.
StorageTierAssoc	getStorageTierAssoc()
long	getUsedBytes()
Map<Pair<String,String>,Long>	getUsedBytesOnDirs()
Map<String,Long>	getUsedBytesOnTiers()

Method Detail

getBlockList

Map<String,List<Long>> getBlockList()

Note: This method is only available when users initialize the blockStoreMeta with full block meta requirement.

Returns:

A mapping from storage tier alias to blocks

getBlockListByStorageLocation

Map<BlockStoreLocation,List<Long>> getBlockListByStorageLocation()

Note: This method is only available when users initialize the blockStoreMeta with full block meta requirement.

Returns:

A mapping from storage location alias to blocks

getCapacityBytes

long getCapacityBytes()

Returns:

the capacity in bytes

getCapacityBytesOnTiers

Map<String,Long> getCapacityBytesOnTiers()

Returns:

a mapping from tier aliases to capacity in bytes

getCapacityBytesOnDirs

Map<Pair<String,String>,Long> getCapacityBytesOnDirs()

Returns:

a mapping from tier directory-path pairs to capacity in bytes

getDirectoryPathsOnTiers

Map<String,List<String>> getDirectoryPathsOnTiers()

Returns:

a mapping from tier aliases to directory paths in that tier

getLostStorage

Map<String,List<String>> getLostStorage()

Returns:

a mapping from tier alias to lost storage paths

getNumberOfBlocks

int getNumberOfBlocks()

Note: This is only available when blocks are included.

Returns:

the number of blocks

getUsedBytes

long getUsedBytes()

Returns:

the used capacity in bytes

getUsedBytesOnTiers

Map<String,Long> getUsedBytesOnTiers()

Returns:

a mapping from tier aliases to used capacity in bytes

getUsedBytesOnDirs

Map<Pair<String,String>,Long> getUsedBytesOnDirs()

Returns:

a mapping from tier directory-path pairs to used capacity in bytes

getStorageTierAssoc

StorageTierAssoc getStorageTierAssoc()

Returns:

the storage tier mapping