Hbase创建预设region表

好处

避免并发热点的问题。

• shell端实现

create 'tb_z','cf',SPLITS=>['10', '20', '30', '40']

• Java端代码实现

Connection conn = getConn();Admin admin = conn.getAdmin();TableDescriptorBuilder tblname = TableDescriptorBuilder.newBuilder(TableName.valueOf("tb_qq"));ColumnFamilyDescriptorBuilder columnFamilyDescriptorBuilder = ColumnFamilyDescriptorBuilder.newBuilder(Bytes.toBytes("info"));ColumnFamilyDescriptor build = columnFamilyDescriptorBuilder.build();TableDescriptorBuilder tableDescriptorBuilder = tblname.setColumnFamily(build);TableDescriptor build1 = tableDescriptorBuilder.build();admin.createTable(build1,new byte[][]{Bytes.toBytes(10),Bytes.toBytes(20),Bytes.toBytes(30)});