Package org.apache.hadoop.hbase.rsgroup

Class RSGroupUtil

java.lang.Object

org.apache.hadoop.hbase.rsgroup.RSGroupUtil

@Private
public final class RSGroupUtil
extends Object

Helper class for RSGroup implementation

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOG
static final String	RS_GROUP_ENABLED

Constructor Summary

Constructors

Modifier	Constructor	Description
private	RSGroupUtil()

Method Summary

Modifier and Type	Method	Description
static void	enableRSGroup(org.apache.hadoop.conf.Configuration conf)
static RSGroupInfo	fillTables(RSGroupInfo rsGroupInfo, Collection<TableDescriptor> tds)	Fill the tables field for RSGroupInfo, for backward compatibility.
static Optional<RSGroupInfo>	getRSGroupInfo(MasterServices master, RSGroupInfoManager manager, TableName tableName)	Will try to get the rsgroup from TableDescriptor first, and then try to get the rsgroup from the NamespaceDescriptor.
static boolean	isRSGroupEnabled(org.apache.hadoop.conf.Configuration conf)
static List<TableName>	listTablesInRSGroup(MasterServices master, String groupName)

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

RS_GROUP_ENABLED

public static final String RS_GROUP_ENABLED

See Also:

• Constant Field Values

Constructor Details

RSGroupUtil

private RSGroupUtil()

Method Details

isRSGroupEnabled

public static boolean isRSGroupEnabled(org.apache.hadoop.conf.Configuration conf)

enableRSGroup

public static void enableRSGroup(org.apache.hadoop.conf.Configuration conf)

listTablesInRSGroup

public static List<TableName> listTablesInRSGroup(MasterServices master,
 String groupName)
                                           throws IOException

Throws:

IOException

getRSGroupInfo

public static Optional<RSGroupInfo> getRSGroupInfo(MasterServices master,
 RSGroupInfoManager manager,
 TableName tableName)
                                            throws IOException

Will try to get the rsgroup from TableDescriptor first, and then try to get the rsgroup from the NamespaceDescriptor. If still not present, return empty.

Throws:

IOException

fillTables

public static RSGroupInfo fillTables(RSGroupInfo rsGroupInfo,
 Collection<TableDescriptor> tds)

Fill the tables field for RSGroupInfo, for backward compatibility.