org.apache.hadoop.hbase.rsgroup

Interface RSGroupInfoManager

@InterfaceAudience.Private
public interface RSGroupInfoManager

Interface used to manage RSGroupInfo storage. An implementation has the option to support offline mode. See RSGroupBasedLoadBalancer.

Method Summary

Modifier and Type	Method and Description
void	addRSGroup(RSGroupInfo rsGroupInfo) Add given RSGroupInfo to existing list of group infos.
BalanceResponse	balanceRSGroup(String groupName, BalanceRequest request) Balance a region server group.
static RSGroupInfoManager	create(MasterServices master)
String	determineRSGroupInfoForTable(TableName tableName) Determine RSGroupInfo for the given table.
RSGroupInfo	getRSGroup(String groupName) Gets RSGroupInfo for the given group name.
RSGroupInfo	getRSGroupForTable(TableName tableName) Get RSGroupInfo for the given table.
RSGroupInfo	getRSGroupOfServer(Address serverHostPort) Gets the group info of server.
boolean	isOnline() Whether the manager is able to fully return group metadata
List<RSGroupInfo>	listRSGroups() List the existing RSGroupInfos.
void	moveServers(Set<Address> servers, String targetGroupName) Move servers to a new group.
void	removeRSGroup(String groupName) Remove a region server group.
void	removeServers(Set<Address> servers) Remove decommissioned servers from rsgroup
void	renameRSGroup(String oldName, String newName) Rename rsgroup
void	setRSGroup(Set<TableName> tables, String groupName) Set group for tables.
void	start()
void	updateRSGroupConfig(String groupName, Map<String,String> configuration) Update RSGroup configuration

Method Detail

start

void start()

addRSGroup

void addRSGroup(RSGroupInfo rsGroupInfo)
         throws IOException

Add given RSGroupInfo to existing list of group infos.

Throws:

IOException

removeRSGroup

void removeRSGroup(String groupName)
            throws IOException

Remove a region server group.

Throws:

IOException

moveServers

void moveServers(Set<Address> servers,
                 String targetGroupName)
          throws IOException

Move servers to a new group.

Throws:

IOException

getRSGroupOfServer

RSGroupInfo getRSGroupOfServer(Address serverHostPort)
                        throws IOException

Gets the group info of server.

Throws:

IOException

getRSGroup

RSGroupInfo getRSGroup(String groupName)
                throws IOException

Gets RSGroupInfo for the given group name.

Throws:

IOException

listRSGroups

List<RSGroupInfo> listRSGroups()
                        throws IOException

List the existing RSGroupInfos.

Throws:

IOException

isOnline

boolean isOnline()

Whether the manager is able to fully return group metadata

Returns:

whether the manager is in online mode

removeServers

void removeServers(Set<Address> servers)
            throws IOException

Remove decommissioned servers from rsgroup

Parameters:

servers - set of servers to remove

Throws:

IOException

getRSGroupForTable

RSGroupInfo getRSGroupForTable(TableName tableName)
                        throws IOException

Get RSGroupInfo for the given table.

Throws:

IOException

create

static RSGroupInfoManager create(MasterServices master)
                          throws IOException

Throws:

IOException

balanceRSGroup

BalanceResponse balanceRSGroup(String groupName,
                               BalanceRequest request)
                        throws IOException

Balance a region server group.

Throws:

IOException

setRSGroup

void setRSGroup(Set<TableName> tables,
                String groupName)
         throws IOException

Set group for tables.

Throws:

IOException

determineRSGroupInfoForTable

String determineRSGroupInfoForTable(TableName tableName)

Determine RSGroupInfo for the given table.

Parameters:

tableName - table name

Returns:

rsgroup name

renameRSGroup

void renameRSGroup(String oldName,
                   String newName)
            throws IOException

Rename rsgroup

Parameters:

oldName - old rsgroup name

newName - new rsgroup name n

Throws:

IOException

updateRSGroupConfig

void updateRSGroupConfig(String groupName,
                         Map<String,String> configuration)
                  throws IOException

Update RSGroup configuration

Parameters:

groupName - the group name

configuration - new configuration of the group name to be set

Throws:

IOException - if a remote or network exception occurs