org.apache.hadoop.hbase.util.hbck

Interface TableIntegrityErrorHandler

All Known Implementing Classes:

HbckTableInfo.HDFSIntegrityFixer, HbckTableInfo.IntegrityFixSuggester, TableIntegrityErrorHandlerImpl

@InterfaceAudience.Private
public interface TableIntegrityErrorHandler

This interface provides callbacks for handling particular table integrity invariant violations. This could probably be boiled down to handling holes and handling overlaps but currently preserves the older more specific error condition codes.

Method Summary

Modifier and Type	Method and Description
HbckTableInfo	getTableInfo()
void	handleDegenerateRegion(HbckRegionInfo hi) Callback for handling a region that has the same start and end key.
void	handleDuplicateStartKeys(HbckRegionInfo hi1, HbckRegionInfo hi2) Callback for handling two regions that have the same start key.
void	handleHoleInRegionChain(byte[] holeStartKey, byte[] holeEndKey) Callback for handling a region hole between two keys.
void	handleOverlapGroup(Collection<HbckRegionInfo> overlap) Callback for handling an group of regions that overlap.
void	handleOverlapInRegionChain(HbckRegionInfo hi1, HbckRegionInfo hi2) Callback for handling two reigons that overlap in some arbitrary way.
void	handleRegionEndKeyNotEmpty(byte[] curEndKey) Callback for handling case where a Table has a last region that does not have an empty end key.
void	handleRegionStartKeyNotEmpty(HbckRegionInfo hi) Callback for handling case where a Table has a first region that does not have an empty start key.
void	handleSplit(HbckRegionInfo hi1, HbckRegionInfo hi2) Callback for handling two regions that have the same regionID a specific case of a split
void	setTableInfo(HbckTableInfo ti) Set the TableInfo used by all HRegionInfos fabricated by other callbacks

Method Detail

getTableInfo

HbckTableInfo getTableInfo()

setTableInfo

void setTableInfo(HbckTableInfo ti)

Set the TableInfo used by all HRegionInfos fabricated by other callbacks

handleRegionStartKeyNotEmpty

void handleRegionStartKeyNotEmpty(HbckRegionInfo hi)
                           throws IOException

Callback for handling case where a Table has a first region that does not have an empty start key.

Parameters:

hi - An HbckRegionInfo of the second region in a table. This should have a non-empty startkey, and can be used to fabricate a first region that has an empty start key.

Throws:

IOException

handleRegionEndKeyNotEmpty

void handleRegionEndKeyNotEmpty(byte[] curEndKey)
                         throws IOException

Callback for handling case where a Table has a last region that does not have an empty end key.

Parameters:

curEndKey - The end key of the current last region. There should be a new region with start key as this and an empty end key.

Throws:

IOException

handleDegenerateRegion

void handleDegenerateRegion(HbckRegionInfo hi)
                     throws IOException

Callback for handling a region that has the same start and end key.

Parameters:

hi - An HbckRegionInfo for a degenerate key.

Throws:

IOException

handleDuplicateStartKeys

void handleDuplicateStartKeys(HbckRegionInfo hi1,
                              HbckRegionInfo hi2)
                       throws IOException

Callback for handling two regions that have the same start key. This is a specific case of a region overlap.

Parameters:

hi1 - one of the overlapping HbckRegionInfo

hi2 - the other overlapping HbckRegionInfo

Throws:

IOException

handleSplit

void handleSplit(HbckRegionInfo hi1,
                 HbckRegionInfo hi2)
          throws IOException

Callback for handling two regions that have the same regionID a specific case of a split

Parameters:

hi1 - one of the overlapping HbckRegionInfo

hi2 - the other overlapping HbckRegionInfo

Throws:

IOException

handleOverlapInRegionChain

void handleOverlapInRegionChain(HbckRegionInfo hi1,
                                HbckRegionInfo hi2)
                         throws IOException

Callback for handling two reigons that overlap in some arbitrary way. This is a specific case of region overlap, and called for each possible pair. If two regions have the same start key, the handleDuplicateStartKeys method is called.

Parameters:

hi1 - one of the overlapping HbckRegionInfo

hi2 - the other overlapping HbckRegionInfo

Throws:

IOException

handleHoleInRegionChain

void handleHoleInRegionChain(byte[] holeStartKey,
                             byte[] holeEndKey)
                      throws IOException

Callback for handling a region hole between two keys.

Parameters:

holeStartKey - key at the beginning of the region hole

holeEndKey - key at the end of the region hole

Throws:

IOException

handleOverlapGroup

void handleOverlapGroup(Collection<HbckRegionInfo> overlap)
                 throws IOException

Callback for handling an group of regions that overlap.

Parameters:

overlap - Collection of overlapping regions.

Throws:

IOException