【 使用环境 】测试环境
【 OB or 其他组件 】
【 使用版本 】4.0.0
【问题描述】清晰明确描述问题
【复现路径】问题出现前后相关操作
【问题现象及影响】
【附件】
刚安装完的测试环境，导入几个tpch表数据（文本文件也才1.1G）：
ls -lh xx
-rw-r--r--. 1 root root 24M Nov 2 16:46 /data/tpch/data/customer.tbl
-rw-r--r--. 1 root root 725M Nov 2 16:46 /data/tpch/data/lineitem.tbl
-rw-r--r--. 1 root root 2.2K Nov 2 16:46 /data/tpch/data/nation.tbl
-rw-r--r--. 1 root root 164M Nov 2 16:46 /data/tpch/data/orders.tbl
-rw-r--r--. 1 root root 114M Nov 2 16:46 /data/tpch/data/partsupp.tbl
-rw-r--r--. 1 root root 24M Nov 2 16:46 /data/tpch/data/part.tbl
-rw-r--r--. 1 root root 389 Nov 3 14:23 /data/tpch/data/region.tbl
-rw-r--r--. 1 root root 1.4M Nov 2 16:46 /data/tpch/data/supplier.tbl
查看元数据信息（也不过0.9G）：
obclient [oceanbase]> select sum(size)/1024/1024/1024.0 from GV$OB_SSTABLES;
+----------------------------+
| sum(size)/1024/1024/1024.0 |
+----------------------------+
| 0.978388764895 |
+----------------------------+
但是发现 ssttable/block_file 文件巨大无比：
[root@wldb1 oceanbase]# ll store/sstable/
total 164626480
-rw-r--r--. 1 root root 168577466368 Nov 3 17:10 block_file
参考文档： 体验并行导入 & 数据压缩-OceanBase 数据库-OceanBase文档中心-分布式数据库使用文档
主动触发对数据库进行合并：
obclient [oceanbase]> ALTER SYSTEM MAJOR FREEZE;
Query OK, 0 rows affected (0.011 sec)
# P.S，参照文档，下面这个查询结果是空的
obclient [oceanbase]> select name,info from __all_zone where zone='' and name = 'merge_status';
Empty set (0.002 sec)
obclient [oceanbase]> select * from __all_zone;
+----------------------------+----------------------------+-------+------------------------+------------------+------------+
| gmt_create | gmt_modified | zone | name | value | info |
+----------------------------+----------------------------+-------+------------------------+------------------+------------+
| 2022-11-02 21:56:34.558652 | 2022-11-02 21:56:34.558652 | | cluster | 0 | obcluster |
| 2022-11-02 21:56:34.560530 | 2022-11-02 21:56:46.159628 | | config_version | 1667397406155412 | |
| 2022-11-02 21:56:34.560530 | 2022-11-02 21:56:46.159628 | | lease_info_version | 1667397406159518 | |
| 2022-11-02 21:56:34.560530 | 2022-11-02 21:56:34.560530 | | privilege_version | 0 | |
| 2022-11-02 21:56:34.561617 | 2022-11-02 21:56:34.561617 | | storage_format_version | 4 | |
| 2022-11-02 21:56:34.560530 | 2022-11-02 21:56:34.560530 | | time_zone_info_version | 0 | |
| 2022-11-02 21:56:34.561617 | 2022-11-02 21:56:34.561617 | zone1 | idc | 0 | |
| 2022-11-02 21:56:34.561617 | 2022-11-02 21:56:34.561617 | zone1 | recovery_status | 0 | NORMAL |
| 2022-11-02 21:56:34.561617 | 2022-11-02 21:56:34.561617 | zone1 | region | 0 | sys_region |
| 2022-11-02 21:56:34.561617 | 2022-11-02 21:56:34.561617 | zone1 | status | 2 | ACTIVE |
| 2022-11-02 21:56:34.562719 | 2022-11-02 21:56:34.562719 | zone1 | storage_type | 0 | LOCAL |
| 2022-11-02 21:56:34.561617 | 2022-11-02 21:56:34.561617 | zone1 | zone_type | 0 | ReadWrite |
+----------------------------+----------------------------+-------+------------------------+------------------+------------+
之后再次查看，文件大小几乎没发生变化。