mysql cluster表空間創建相關命令

1.創建日誌文件組

CREATE LOGFILE GROUP lg_1 ADD UNDOFILE 'undo_1.log'  INITIAL_SIZE 1024M UNDO_BUFFER_SIZE 128M ENGINE NDBCLUSTER;

2.創建表空間

 CREATE TABLESPACE ts_1   ADD DATAFILE 'data_1.dat'   USE LOGFILE GROUP lg_1  INITIAL_SIZE 409600M  ENGINE NDBCLUSTER;

3.向表空間裏添加數據文件

alter tablespace ts_1 add datafile 'data_13.dat' initial_size 107374172400 engine ndbcluster;    

alter tablespace ts_1 add datafile 'data_13.dat' initial_size 10G engine ndbcluster; 

4.刪除順序爲：表——數據文件——表空間——日誌文件 組

DROP TABLE dt_1;

ALTER TABLESPACE ts_1  DROP DATAFILE 'data_1.dat‘  ENGINE NDBCLUSTER;

DROP TABLESPACE ts_1 ENGINE NDBCLUSTER;

DROP LOGFILE GROUP lg_1  ENGINE NDBCLUSTER;

5.查看錶空間的使用情況

SELECT TABLESPACE_NAME, FILE_NAME, EXTENT_SIZE*TOTAL_EXTENTS/1024/1024 AS TOTAL_MB, EXTENT_SIZE*FREE_EXTENTS/1024/1024 AS FREE_MB, EXTRA FROM information_schema.FILES WHERE FILE_TYPE="DATAFILE";