Supported and Unsupported Methods in Admin (HBase 0.98 and higher)

Method Name	Modifier and Type	Description	Supported?
`abort(String why, Throwable e)`	void	Abort the server or client .	No	No
`addColumn(TableName tableName, HColumnDescriptor column)`	void	Add a column to an existing table.	Yes	Yes
`assign(byte[] regionName)`	void	Assign a region.	No	No
`balancer()`	boolean	Invoke the balancer. NOTE: MapR-DB does not require balancing. Therefore, the method is ignored.	No	No
`cloneSnapshot(byte[] snapshotName, TableName tableName)`	void	Create a new table by cloning the snapshot content.	No	No
`cloneSnapshot(String snapshotName, TableName tableName)`	void	No	No
`close()`	void	Release any resources held.	Yes	Yes
`closeRegion(byte[] regionname, String serverName)`	void	Close a region.	No	No
`closeRegion(ServerName sn, HRegionInfo hri)`	void	No	No
`closeRegion(String regionname, String serverName)`	void	No	No
`closeRegionWithEncodedRegionName(String encodedRegionName, String serverName)`	boolean	For expert-admins.	No	No
`compact(TableName tableName, byte[] columnFamily)`	void	Compact a column family within a table.	No	No
`compact(TableName tableName)`	void	Compact a table.	No	No
`compactRegion(byte[] regionName, byte[] columnFamily)`	void	Compact a column family within a region.	No	No
`compactRegion(byte[] regionName)`	void	Compact an individual region.	No	No
`compactRegionServer(ServerName sn, boolean major)`	void	Compact all regions on the region server	No	No
`coprocessorService()`	CoprocessorRpcChannel	Creates and returns a RpcChannel instance connected to the active master.	No	No
`coprocessorService(ServerName sn)`	CoprocessorRpcChannel	No	No
`createNamespace(NamespaceDescriptor descriptor)`	void	Create a new namespace	No	No
`createTable(HTableDescriptor desc, byte[] startKey, byte[] endKey, int numRegions)`	void	Creates a new table with the specified number of regions.	Yes	Yes
`createTable(HTableDescriptor desc, byte[][] splitKeys)`	void	Creates a new table with an initial set of empty regions defined by the specified split keys.	Yes	Yes
`createTable(HTableDescriptor desc)`	void	Creates a new table.	Yes	Yes
`createTableAsync(HTableDescriptor desc, byte[][] splitKeys)`	void	Creates a new table but does not block and wait for it to come online. NOTE: MapR-DB treats this method as synchronous and returns null when the table is created.	Yes	Yes
`deleteColumn(String tableName, String columnName)`	void	Delete a column from a table.	Yes	Yes
`deleteColumn(TableName tableName, byte[] columnName)`	void	Yes	Yes
`deleteNamespace(String name)`	void	Delete an existing namespace.	No	No
`deleteSnapshot(byte[] snapshotName)`	void	Delete an existing snapshot.	No	No
`deleteSnapshot(String snapshotName)`	void	No	No
`deleteSnapshots(Pattern pattern)`	void	Delete existing snapshots whose names match the pattern passed.	No	No
`deleteSnapshots(String regex)`	void	No	No
`deleteTable(String tableName)`	void	Deletes a table	Yes	Yes
`deleteTable(byte[] tableName)`	Yes	Yes
`deleteTable(TableName tableName)`	Yes	Yes
`deleteTables(Pattern pattern)`	HTableDescriptor[]	Delete tables matching the passed in pattern and wait on completion.	Yes	Yes
`deleteTables(String regex)`	HTableDescriptor[]	Yes	Yes
`disableTable (String tableName)`	void	Disable table and wait for completion. NOTE: MapR-DB does not require disabling of tables. Therefore, although it supports these methods, it only flags the table as disabled and does not perform any other operation.	Yes	Yes
`disableTable(TableName tableName)`	void	Yes	Yes
`disableTableAsync (String tableName)`	void	Disable the table but does not block and wait for it be completely disabled.	Yes	Yes
`disableTableAsync(TableName tableName)`	void	Yes	Yes
`disableTables(Pattern pattern)`	HTableDescriptor[]	Disable tables matching the passed in pattern and wait on completion.	Yes	Yes
`disableTables(String regex)`	HTableDescriptor[]	Yes	Yes
`enableCatalogJanitor(boolean enable)`	boolean	Enable/Disable the catalog janitor.	No	No
`enableTable(String tableName)`	void	Enable a table. NOTE: MapR-DB does not require enabling of tables. Therefore, although it supports this method, it only flags the table as enabled and does not perform any other operation.	Yes	Yes
`enableTable(bye[] tableName)`	void	Yes	Yes
`enableTable(TableName tableName)`	void	Yes	Yes
`enableTableAsync (String tableName)`	void	Yes	Yes
`enableTableAsync(TableName tableName)`	void	Enable the table but does not block and wait for it be completely enabled.	Yes	Yes
`enableTables(Pattern pattern)`	HTableDescriptor[]	Enable tables matching the passed in pattern and wait on completion.	Yes	Yes
`enableTables(String regex)`	Yes	Yes
`execProcedure(String signature, String instance, Map<String,String> props)`	void	Execute a distributed procedure on a cluster.	No	No
`execProcedureWithRet(String signature, String instance, Map<String,String> props)`	byte[]	No	No
`flush(TableName tableName)`	void	Flush a table.	No	Yes
`flush(byte[] tableNameOrRegionName)`	void	Yes	Yes
`flush(String tableNameOrRegionName)`	void	Yes	Yes
`flushRegion(byte[] regionName)`	void	Flush an individual region.	No	Yes
`getAlterStatus(byte[] tableName)`	Pair<Integer,Integer>	Get the status of alter command - indicates how many regions have received the updated schema Asynchronous operation. NOTE: MapR-DB always returns (0,0).	No	No
`getAlterStatus(TableName tableName)`	Pair<Integer,Integer>	No	No
`getClusterStatus()`	ClusterStatus	Get the status of the cluster.	No	No
`getCompactionState(String tableNameOrRegionName)`	CompactionState	Get the current compaction state of a table.	No	No
`getCompactionState(TableName tableName)`	org.apache.hadoop.hbase.protobuf.generated.AdminProtos.GetRegionInfoResponse.CompactionState	No	No
`getCompactionStateForRegion(byte[] regionName)`	org.apache.hadoop.hbase.protobuf.generated.AdminProtos.GetRegionInfoResponse.CompactionState	Get the current compaction state of region.	No	No
`getConfiguration()`	org.apache.hadoop.conf.Configuration	Get the configuration used by the instance.	Yes	Yes
`getConnection()`	Connection	Get the connection used by this object.	No	Yes
`getMasterCoprocessors()`	String[]	Helper delegage to getClusterStatus().getMasterCoprocessors().	No	No
`getMasterInfoPort()`	int	Get the info port of the current master if one is available.	No	No
`getNamespaceDescriptor(String name)`	NamespaceDescriptor	Get a namespace descriptor by name.	No	No
`getOnlineRegions(ServerName sn)`	List<HRegionInfo>	Get all the online regions on a region server.	No	No
`getOperationTimeout()` ⁱ	int	MapR-DB never uses the timeout value. NOTE: If v1.1 API is used with MapR-DB, the method is ignored. MapR-DB does not use the timeout value.	No	No
`getQuotaRetriever(QuotaFilter filter)`	QuotaRetriever	Return a QuotaRetriever to list the quotas based on the filter.	No	No
`getTableDescriptor (byte[] tableName)`	HTableDescriptor	Yes	Yes
`getTableDescriptor(TableName tableName)`	HTableDescriptor	Method for getting the tableDescriptor.	Yes	Yes
`getTableDescriptors(List<String> names)`	HTableDescriptor[]	Get tableDescriptors.	Yes	Yes
`getTableDescriptorsByTableName(List<TableName> tableNames)`	HTableDescriptor[]	Yes	Yes
`getTableRegions (byte[] tableName)`	List<HRegionInfo>	Get the regions of a given table.	Yes	Yes
`getTableRegions(TableName tableName)`	List<HRegionInfo>	Yes	Yes
`isAborted()`	boolean	Check if the server or client was aborted.	No	No
`isCatalogJanitorEnabled()`	boolean	Query on the catalog janitor state. MapR-DB always returns false.	No	No
`isProcedureFinished(String signature, String instance, Map<String,String> props)`	boolean	Check the current state of the specified procedure.	No	No
`isSnapshotFinished(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)`	boolean	Check the current state of the passed snapshot.	No	No
`isTableAvailable(String tableName)`	boolean	Check if all regions of the table are available.	Yes	Yes
`isTableAvailable(TableName tableName, byte[][] splitKeys)`	boolean	Use this API to check if the table has been created with the specified number of splitkeys which was used while creating the given table.	No	No
`isTableAvailable(TableName tableName)`	boolean	Returns true if all regions of the table are available.	Yes	Yes
`isTableDisabled(String tableName)`	boolean	Check if table is offline. NOTE: Although MapR-DB supports this method, it only checks the flag.	Yes	Yes
`isTableDisabled(TableName tableName)`	boolean	Yes	Yes
`isTableEnabled(String tableName)`	boolean	Check if table is online. NOTE: Although MapR-DB supports this method, it only checks the flag and does not change the flag.	Yes	Yes
`isTableEnabled(TableName tableName)`	boolean	Yes	Yes
`listNamespaceDescriptors()`	NamespaceDescriptor[]	List available namespace descriptors	No	No
`listSnapshots()`	List<org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription>	List completed snapshots.	No	No
`listSnapshots(Pattern pattern)`	List<org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription>	List all the completed snapshots matching the given pattern.	No	No
`listSnapshots(String regex)`	List<org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription>	List all the completed snapshots matching the given regular expression.	No	No
`listTableDescriptorsByNamespace(String name)`	HTableDescriptor[]	Get list of table descriptors by namespace.	No	No
`listTableNames()`	TableName[]	List all of the names of userspace tables.	Yes	Yes
`listTableNames(Pattern pattern, boolean includeSysTables)`	TableName[]	No	Yes
`listTableNames(Pattern pattern)`	TableName[]	No	Yes
`listTableNames(String regex, boolean includeSysTables)`	TableName[]	No	Yes
`listTableNames(String regex)`	TableName[]	No	Yes
`listTableNamesByNamespace(String name)`	TableName[]	Get list of table names by namespace.	No	No
`listTables()`	HTableDescriptor[]	List all the userspace tables.	Yes	Yes
`listTables(Pattern pattern, boolean includeSysTables)`	HTableDescriptor[]	List all the tables matching the given pattern. NOTE: MapR-DB does not have system tables and so, the boolean value is ignored.	No	Yes
`listTables(Pattern pattern)`	HTableDescriptor[]	List all the userspace tables matching the given pattern.	Yes	Yes
`listTables(String regex, boolean includeSysTables)`	HTableDescriptor[]	List all the tables matching the given pattern. NOTE: MapR-DB does not have system tables and so, the boolean value is ignored.	No	Yes
`listTables(String regex)`	HTableDescriptor[]	List all the userspace tables matching the given regular expression.	Yes	Yes
`majorCompact(byte[] tableNameOrRegionName)`	void	Compact a table or an individual region.	No	Deprecated
`majorCompact(String tableNameOrRegionName)`	void	No	Deprecated
`majorCompact(byte[] tableNameOrRegionName, byte[] columnFamily)`	void	Compact a column family within a table or region.	No	Deprecated
`majorCompact(String tableNameOrRegionName, String columnFamily)`	void	No	Deprecated
`majorCompactRegion(byte[] regionName, byte[] columnFamily)`	void	Major compact a column family within region.	No	No
`majorCompactRegion(byte[] regionName)`	void	Major compact a table or an individual region.	No	No
`mergeRegions(byte[] nameOfRegionA, byte[] nameOfRegionB, boolean forcible)`	void	Merge two regions.	No	No
`modifyColumn(String tableName, HColumnDescriptor descriptor)`	void	Modify an existing column family on a table.	Yes	Yes
`modifyColumn(TableName tableName, HColumnDescriptor columnFamily)`	void	Yes	Yes
`modifyNamespace(NamespaceDescriptor descriptor)`	void	Modify an existing namespace.	No	No
`modifyTable (byte[] tableName, HTableDescriptor htd)`	void	Modify an existing table.	Yes	Yes
`modifyTable(final String tableName, final HTableDescriptor htd)`	void	Yes	Yes
`modifyTable(TableName tableName, HTableDescriptor htd)`	void	Modify an existing table, more IRB friendly version.	Yes	Yes
`move(byte[] encodedRegionName, byte[] destServerName)`	void	Move the region r to dest.	No	No
`offline(byte[] regionName)`	void	Offline specified region from master's in-memory state.	No	No
`restoreSnapshot(byte[] snapshotName, boolean takeFailSafeSnapshot)`	void	Restore the specified snapshot on the original table.	No	No
`restoreSnapshot(byte[] snapshotName)`	void	No	No
`restoreSnapshot(String snapshotName, boolean takeFailSafeSnapshot)`	void	No	No
`restoreSnapshot(String snapshotName)`	void	No	No
`rollWALWriter(ServerName serverName)`	void	Roll the log writer.	No	No
`runCatalogScan()`	int	Ask for a scan of the catalog table.	No	No
`setBalancerRunning(boolean on, boolean synchronous)`	boolean	Turn the load balancer on or off. NOTE: MapR-DB does not require balancing. Therefore, the method just sets a flag and there is no impact on the MapR table.	No	No
`setQuota(QuotaSettings quota)`	void	Apply the new quota settings.	No	No
`shutdown()`	void	Shuts down the HBase cluster.	No	No
`snapshot(byte[] snapshotName, TableName tableName)`	void	Create a timestamp consistent snapshot for the given table.	No	No
`snapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)`	void	Take a snapshot and wait for the server to complete that snapshot (blocking).	No	No
`snapshot(String snapshotName, TableName tableName, org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription.Type type)`	void	Create typed snapshot of the table.	No	No
`snapshot(String snapshotName, TableName tableName)`	void	Take a snapshot for the given table.	No	No
`split(byte[] tableNameOrRegionName)`	void	Split a table. NOTE: The tableNameOrRegionName parameter has a different format when used with MapR tables than with Apache HBase tables. With MapR Tables, specify both the table path and the FID as a comma-separated list.	Yes	Yes
`split(TableName tableName, byte[] splitPoint)`	void	No	No
`split(TableName tableName)`	void	Yes	Yes
`splitRegion(byte[] regionName, byte[] splitPoint)`	void	Split an individual region.	No	No
`splitRegion(byte[] regionName)`	void	No	Yes
`stopMaster()`	void	Shuts down the current HBase master only.	No	No
`stopRegionServer(String hostnamePort)`	void	Stop the designated regionserver.	No	No
`tableExists(TableName tableName)`	boolean	Return whether a table with given name exists.	Yes	Yes
`tableExists(byte[] tableName)`	boolean	Yes	Yes
`tableExists(String tableName)`	boolean	Yes	Yes
`takeSnapshotAsync(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)`	org.apache.hadoop.hbase.protobuf.generated.MasterProtos.SnapshotResponse	Take a snapshot without waiting for the server to complete that snapshot (asynchronous) Only a single snapshot should be taken at a time, or results may be undefined.	No	No
`truncateTable(TableName tableName, boolean preserveSplits)`	void	Truncate a table.	Yes	Yes
`unassign(byte[] regionName, boolean force)`	void	Unassign a region from current hosting regionserver.	No	No
`updateConfiguration()`	void	Update the configuration and trigger an online config change on all the regionservers.	No	No
`updateConfiguration(ServerName server)`	void	No	No

abort(String why, Throwable e)

void

Abort the server or client .

No

addColumn(TableName tableName, HColumnDescriptor
                column)

void

Add a column to an existing table.

Yes

assign(byte[] regionName)

void

Assign a region.

No

balancer()

boolean

Invoke the balancer.

NOTE: MapR-DB does not require balancing. Therefore, the method is ignored.

No

cloneSnapshot(byte[] snapshotName, TableName
                tableName)

void

Create a new table by cloning the snapshot content.

No

cloneSnapshot(String snapshotName, TableName
                tableName)

void

No

close()

void

Release any resources held.

Yes

closeRegion(byte[] regionname, String serverName)

void

Close a region.

No

closeRegion(ServerName sn, HRegionInfo hri)

void

No

closeRegion(String regionname, String serverName)

void

No

closeRegionWithEncodedRegionName(String encodedRegionName, String
                  serverName)

boolean

For expert-admins.

No

compact(TableName tableName, byte[] columnFamily)

void

Compact a column family within a table.

No

compact(TableName tableName)

void

Compact a table.

No

compactRegion(byte[] regionName, byte[] columnFamily)

void

Compact a column family within a region.

No

compactRegion(byte[] regionName)

void

Compact an individual region.

No

compactRegionServer(ServerName sn, boolean major)

void

Compact all regions on the region server

No

coprocessorService()

CoprocessorRpcChannel

Creates and returns a RpcChannel instance connected to the active master.

No

coprocessorService(ServerName sn)

CoprocessorRpcChannel

No

createNamespace(NamespaceDescriptor descriptor)

void

Create a new namespace

No

createTable(HTableDescriptor desc, byte[] startKey, byte[] endKey, int
                  numRegions)

void

Creates a new table with the specified number of regions.

Yes

createTable(HTableDescriptor desc, byte[][] splitKeys)

void

Creates a new table with an initial set of empty regions defined by the specified split keys.

Yes

createTable(HTableDescriptor desc)

void

Creates a new table.

Yes

createTableAsync(HTableDescriptor desc, byte[][]
                splitKeys)

void

Creates a new table but does not block and wait for it to come online.

NOTE: MapR-DB treats this method as synchronous and returns null when the table is created.

Yes

deleteColumn(String tableName, String columnName)

void

Delete a column from a table.

Yes

deleteColumn(TableName tableName, byte[] columnName)

void

Yes

deleteNamespace(String name)

void

Delete an existing namespace.

No

deleteSnapshot(byte[] snapshotName)

void

Delete an existing snapshot.

No

deleteSnapshot(String snapshotName)

void

No

deleteSnapshots(Pattern pattern)

void

Delete existing snapshots whose names match the pattern passed.

No

deleteSnapshots(String regex)

void

No

deleteTable(String tableName)

void

Deletes a table

Yes

deleteTable(byte[] tableName)

Yes

deleteTable(TableName tableName)

Yes

deleteTables(Pattern pattern)

HTableDescriptor[]

Delete tables matching the passed in pattern and wait on completion.

Yes

deleteTables(String regex)

HTableDescriptor[]

Yes

disableTable (String tableName)

void

Disable table and wait for completion.

NOTE: MapR-DB does not require disabling of tables. Therefore, although it supports these methods, it only flags the table as disabled and does not perform any other operation.

Yes

disableTable(TableName tableName)

void

Yes

disableTableAsync (String tableName)

void

Disable the table but does not block and wait for it be completely disabled.

Yes

disableTableAsync(TableName tableName)

void

Yes

disableTables(Pattern pattern)

HTableDescriptor[]

Disable tables matching the passed in pattern and wait on completion.

Yes

disableTables(String regex)

HTableDescriptor[]

Yes

enableCatalogJanitor(boolean enable)

boolean

Enable/Disable the catalog janitor.

No

enableTable(String tableName)

void

Enable a table.

NOTE: MapR-DB does not require enabling of tables. Therefore, although it supports this method, it only flags the table as enabled and does not perform any other operation.

Yes

enableTable(bye[] tableName)

void

Yes

enableTable(TableName tableName)

void

Yes

enableTableAsync (String tableName)

void

Yes

enableTableAsync(TableName tableName)

void

Enable the table but does not block and wait for it be completely enabled.

Yes

enableTables(Pattern pattern)

HTableDescriptor[]

Enable tables matching the passed in pattern and wait on completion.

Yes

enableTables(String regex)

Yes

execProcedure(String signature, String instance,
                  Map<String,String> props)

void

Execute a distributed procedure on a cluster.

No

execProcedureWithRet(String signature, String instance,
                  Map<String,String> props)

byte[]

No

flush(TableName tableName)

void

Flush a table.

No

Yes

flush(byte[] tableNameOrRegionName)

void

Yes

flush(String tableNameOrRegionName)

void

Yes

flushRegion(byte[] regionName)

void

Flush an individual region.

No

Yes

getAlterStatus(byte[] tableName)

Pair<Integer,Integer>

Get the status of alter command - indicates how many regions have received the updated schema Asynchronous operation.

NOTE: MapR-DB always returns (0,0).

No

getAlterStatus(TableName tableName)

Pair<Integer,Integer>

No

getClusterStatus()

ClusterStatus

Get the status of the cluster.

No

getCompactionState(String tableNameOrRegionName)

CompactionState

Get the current compaction state of a table.

No

getCompactionState(TableName tableName)

org.apache.hadoop.hbase.protobuf.generated.AdminProtos.GetRegionInfoResponse.CompactionState

No

getCompactionStateForRegion(byte[] regionName)

org.apache.hadoop.hbase.protobuf.generated.AdminProtos.GetRegionInfoResponse.CompactionState

Get the current compaction state of region.

No

getConfiguration()

org.apache.hadoop.conf.Configuration

Get the configuration used by the instance.

Yes

getConnection()

Connection

Get the connection used by this object.

No

Yes

getMasterCoprocessors()

String[]

Helper delegage to getClusterStatus().getMasterCoprocessors().

No

getMasterInfoPort()

int

Get the info port of the current master if one is available.

No

getNamespaceDescriptor(String name)

NamespaceDescriptor

Get a namespace descriptor by name.

No

getOnlineRegions(ServerName sn)

List<HRegionInfo>

Get all the online regions on a region server.

No

getOperationTimeout() ⁱ

int

MapR-DB never uses the timeout value.

NOTE: If v1.1 API is used with MapR-DB, the method is ignored. MapR-DB does not use the timeout value.

No

getQuotaRetriever(QuotaFilter filter)

QuotaRetriever

Return a QuotaRetriever to list the quotas based on the filter.

No

getTableDescriptor (byte[] tableName)

HTableDescriptor

Yes

getTableDescriptor(TableName tableName)

HTableDescriptor

Method for getting the tableDescriptor.

Yes

getTableDescriptors(List<String> names)

HTableDescriptor[]

Get tableDescriptors.

Yes

getTableDescriptorsByTableName(List<TableName>
                  tableNames)

HTableDescriptor[]

Yes

getTableRegions (byte[] tableName)

List<HRegionInfo>

Get the regions of a given table.

Yes

getTableRegions(TableName tableName)

List<HRegionInfo>

Yes

isAborted()

boolean

Check if the server or client was aborted.

No

isCatalogJanitorEnabled()

boolean

Query on the catalog janitor state. MapR-DB always returns false.

No

isProcedureFinished(String signature, String instance,
                  Map<String,String> props)

boolean

Check the current state of the specified procedure.

No

isSnapshotFinished(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription
                  snapshot)

boolean

Check the current state of the passed snapshot.

No

isTableAvailable(String tableName)

boolean

Check if all regions of the table are available.

Yes

isTableAvailable(TableName tableName, byte[][]
                splitKeys)

boolean

Use this API to check if the table has been created with the specified number of splitkeys which was used while creating the given table.

No

isTableAvailable(TableName tableName)

boolean

Returns true if all regions of the table are available.

Yes

isTableDisabled(String tableName)

boolean

Check if table is offline.

NOTE: Although MapR-DB supports this method, it only checks the flag.

Yes

isTableDisabled(TableName tableName)

boolean

Yes

isTableEnabled(String tableName)

boolean

Check if table is online.

NOTE: Although MapR-DB supports this method, it only checks the flag and does not change the flag.

Yes

isTableEnabled(TableName tableName)

boolean

Yes

listNamespaceDescriptors()

NamespaceDescriptor[]

List available namespace descriptors

No

listSnapshots()

List<org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription>

List completed snapshots.

No

listSnapshots(Pattern pattern)

List<org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription>

List all the completed snapshots matching the given pattern.

No

listSnapshots(String regex)

List<org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription>

List all the completed snapshots matching the given regular expression.

No

listTableDescriptorsByNamespace(String name)

HTableDescriptor[]

Get list of table descriptors by namespace.

No

listTableNames()

TableName[]

List all of the names of userspace tables.

Yes

listTableNames(Pattern pattern, boolean
                includeSysTables)

TableName[]

No

Yes

listTableNames(Pattern pattern)

TableName[]

No

Yes

listTableNames(String regex, boolean includeSysTables)

TableName[]

No

Yes

listTableNames(String regex)

TableName[]

No

Yes

listTableNamesByNamespace(String name)

TableName[]

Get list of table names by namespace.

No

listTables()

HTableDescriptor[]

List all the userspace tables.

Yes

listTables(Pattern pattern, boolean includeSysTables)

HTableDescriptor[]

List all the tables matching the given pattern.

NOTE: MapR-DB does not have system tables and so, the boolean value is ignored.

No

Yes

listTables(Pattern pattern)

HTableDescriptor[]

List all the userspace tables matching the given pattern.

Yes

listTables(String regex, boolean includeSysTables)

HTableDescriptor[]

List all the tables matching the given pattern.

NOTE: MapR-DB does not have system tables and so, the boolean value is ignored.

No

Yes

listTables(String regex)

HTableDescriptor[]

List all the userspace tables matching the given regular expression.

Yes

majorCompact(byte[] tableNameOrRegionName)

void

Compact a table or an individual region.

No

Deprecated

majorCompact(String tableNameOrRegionName)

void

No

Deprecated

majorCompact(byte[] tableNameOrRegionName, byte[]
                  columnFamily)

void

Compact a column family within a table or region.

No

Deprecated

majorCompact(String tableNameOrRegionName, String
                  columnFamily)

void

No

Deprecated

majorCompactRegion(byte[] regionName, byte[]
                columnFamily)

void

Major compact a column family within region.

No

majorCompactRegion(byte[] regionName)

void

Major compact a table or an individual region.

No

mergeRegions(byte[] nameOfRegionA, byte[] nameOfRegionB, boolean
                  forcible)

void

Merge two regions.

No

modifyColumn(String tableName, HColumnDescriptor
                descriptor)

void

Modify an existing column family on a table.

Yes

modifyColumn(TableName tableName, HColumnDescriptor
                  columnFamily)

void

Yes

modifyNamespace(NamespaceDescriptor descriptor)

void

Modify an existing namespace.

No

modifyTable (byte[] tableName, HTableDescriptor htd)

void

Modify an existing table.

Yes

modifyTable(final String tableName, final HTableDescriptor
                  htd)

void

Yes

modifyTable(TableName tableName, HTableDescriptor htd)

void

Modify an existing table, more IRB friendly version.

Yes

move(byte[] encodedRegionName, byte[] destServerName)

void

Move the region r to dest.

No

offline(byte[] regionName)

void

Offline specified region from master's in-memory state.

No

restoreSnapshot(byte[] snapshotName, boolean
                  takeFailSafeSnapshot)

void

Restore the specified snapshot on the original table.

No

restoreSnapshot(byte[] snapshotName)

void

No

restoreSnapshot(String snapshotName, boolean
                  takeFailSafeSnapshot)

void

No

restoreSnapshot(String snapshotName)

void

No

rollWALWriter(ServerName serverName)

void

Roll the log writer.

No

runCatalogScan()

int

Ask for a scan of the catalog table.

No

setBalancerRunning(boolean on, boolean synchronous)

boolean

Turn the load balancer on or off.

NOTE: MapR-DB does not require balancing. Therefore, the method just sets a flag and there is no impact on the MapR table.

No

setQuota(QuotaSettings quota)

void

Apply the new quota settings.

No

shutdown()

void

Shuts down the HBase cluster.

No

snapshot(byte[] snapshotName, TableName tableName)

void

Create a timestamp consistent snapshot for the given table.

No

snapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription
                  snapshot)

void

Take a snapshot and wait for the server to complete that snapshot (blocking).

No

snapshot(String snapshotName, TableName tableName,
                  org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription.Type
                  type)

void

Create typed snapshot of the table.

No

snapshot(String snapshotName, TableName tableName)

void

Take a snapshot for the given table.

No

split(byte[] tableNameOrRegionName)

void

Split a table.

NOTE: The tableNameOrRegionName parameter has a different format when used with MapR tables than with Apache HBase tables. With MapR Tables, specify both the table path and the FID as a comma-separated list.

Yes

split(TableName tableName, byte[] splitPoint)

void

No

split(TableName tableName)

void

Yes

splitRegion(byte[] regionName, byte[] splitPoint)

void

Split an individual region.

No

splitRegion(byte[] regionName)

void

No

Yes

stopMaster()

void

Shuts down the current HBase master only.

No

stopRegionServer(String hostnamePort)

void

Stop the designated regionserver.

No

tableExists(TableName tableName)

boolean

Return whether a table with given name exists.

Yes

tableExists(byte[] tableName)

boolean

Yes

tableExists(String tableName)

boolean

Yes

takeSnapshotAsync(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription
                  snapshot)

org.apache.hadoop.hbase.protobuf.generated.MasterProtos.SnapshotResponse

Take a snapshot without waiting for the server to complete that snapshot (asynchronous) Only a single snapshot should be taken at a time, or results may be undefined.

No

truncateTable(TableName tableName, boolean
                preserveSplits)

void

Truncate a table.

Yes

unassign(byte[] regionName, boolean force)

void

Unassign a region from current hosting regionserver.

No

updateConfiguration()

void

Update the configuration and trigger an online config change on all the regionservers.

No

updateConfiguration(ServerName server)

void

No