Method Detail

• getRSGroupInfo

  RSGroupInfo getRSGroupInfo(String groupName)
                             throws IOException

  Gets RSGroupInfo for given group name.

  Throws:

  IOException

• getRSGroupInfoOfTable

  RSGroupInfo getRSGroupInfoOfTable(TableName tableName)
                                    throws IOException

  Gets RSGroupInfo for the given table's group.

  Throws:

  IOException

• moveServers

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

  Move given set of servers to the specified target RegionServer group.

  Throws:

  IOException

• moveTables

  void moveTables(Set<TableName> tables,
                String targetGroup)
                  throws IOException

  Move given set of tables to the specified target RegionServer group. This will unassign all of a table's region so it can be reassigned to the correct group.

  Throws:

  IOException

• addRSGroup

  void addRSGroup(String groupName)
                  throws IOException

  Creates a new RegionServer group with the given name.

  Throws:

  IOException

• removeRSGroup

  void removeRSGroup(String groupName)
                     throws IOException

  Removes RegionServer group associated with the given name.

  Throws:

  IOException

• balanceRSGroup

  boolean balanceRSGroup(String groupName)
                         throws IOException

  Balance regions in the given RegionServer group.

  Returns:

  boolean Whether balance ran or not

  Throws:

  IOException

• listRSGroups

  List<RSGroupInfo> listRSGroups()
                                 throws IOException

  Lists current set of RegionServer groups.

  Throws:

  IOException

• getRSGroupOfServer

  RSGroupInfo getRSGroupOfServer(Address hostPort)
                                 throws IOException

  Retrieve the RSGroupInfo a server is affiliated to

  Parameters:

  hostPort - HostPort to get RSGroupInfo for

  Throws:

  IOException

• moveServersAndTables

  void moveServersAndTables(Set<Address> servers,
                          Set<TableName> tables,
                          String targetGroup)
                            throws IOException

  Move given set of servers and tables to the specified target RegionServer group.

  Parameters:

  servers - set of servers to move

  tables - set of tables to move

  targetGroup - the target group name

  Throws:

  IOException

• removeServers

  void removeServers(Set<Address> servers)
                     throws IOException

  Remove decommissioned servers from rsgroup. 1. Sometimes we may find the server aborted due to some hardware failure and we must offline the server for repairing. Or we need to move some servers to join other clusters. So we need to remove these servers from the rsgroup. 2. Dead/recovering/live servers will be disallowed.

  Parameters:

  servers - set of servers to remove

  Throws:

  IOException