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V$OB_KVCACHE

更新时间：2026-07-15 20:42:46

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说明

该视图从 V4.0.0 版本开始引入。

功能描述

展示本租户在当前 OBServer 节点上的 KVcache 信息。

字段说明

字段名称	类型	是否可以为 NULL	描述
SVR_IP	varchar(46)	NO	服务器 IP 地址
SVR_PORT	bigint(20)	NO	服务器端口号
TENANT_ID	bigint(20)	NO	租户 ID
CACHE_NAME	varchar(128)	NO	CACHE 项名称
PRIORITY	bigint(20)	NO	优先级
CACHE_SIZE	bigint(20)	NO	CACHE 大小
HIT_RATIO	decimal(38,3)	NO	命中率
TOTAL_PUT_CNT	bigint(20)	NO	PUT 次数
TOTAL_HIT_CNT	bigint(20)	NO	命中次数
TOTAL_MISS_CNT	bigint(20)	NO	未命中次数

查询示例

用户租户查询本租户在当前 OBServer 节点上的 KVcache 信息。

obclient [oceanbase]> SELECT * FROM oceanbase.V$OB_KVCACHE;

查询结果如下：

+----------------+----------+-----------+-----------------------+----------+------------+-----------+---------------+---------------+----------------+
| SVR_IP         | SVR_PORT | TENANT_ID | CACHE_NAME            | PRIORITY | CACHE_SIZE | HIT_RATIO | TOTAL_PUT_CNT | TOTAL_HIT_CNT | TOTAL_MISS_CNT |
+----------------+----------+-----------+-----------------------+----------+------------+-----------+---------------+---------------+----------------+
| 172.xx.xxx.xxx |     2882 |      1002 | index_block_cache     |       10 |   72824832 |    99.545 |         20906 |       5627353 |          25711 |
| 172.xx.xxx.xxx |     2882 |      1002 | user_block_cache      |        1 |  759478272 |    99.907 |         25314 |      29799447 |          27674 |
| 172.xx.xxx.xxx |     2882 |      1002 | user_row_cache        |        1 |   12483584 |    62.578 |          5048 |         15100 |           9030 |
| 172.xx.xxx.xxx |     2882 |      1002 | fuse_row_cache        |        1 |    6241280 |    99.815 |           497 |        759998 |           1405 |
| 172.xx.xxx.xxx |     2882 |      1002 | storage_meta_cache    |       10 |  297544704 |    99.844 |         60664 |      38776523 |          60766 |
| 172.xx.xxx.xxx |     2882 |      1002 | tx_data_kv_cache      |        2 |    6241280 |   100.000 |             2 |         55810 |              0 |
| 172.xx.xxx.xxx |     2882 |      1002 | log_kv_cache          |        1 | 2632168448 |     0.000 |         39208 |             0 |              0 |
| 172.xx.xxx.xxx |     2882 |      1002 | opt_table_stat_cache  |        1 |    6241280 |    91.495 |           472 |         42517 |           3952 |
| 172.xx.xxx.xxx |     2882 |      1002 | opt_column_stat_cache |        1 |   22887424 |    81.099 |          6688 |        187198 |          43628 |
| 172.xx.xxx.xxx |     2882 |      1002 | opt_ds_stat_cache     |        1 |    6241280 |    90.110 |             9 |            82 |              9 |
| 172.xx.xxx.xxx |     2882 |      1002 | opt_system_stat_cache |        1 |    6241280 |   100.000 |             2 |          5263 |              0 |
+----------------+----------+-----------+-----------------------+----------+------------+-----------+---------------+---------------+----------------+
11 rows in set

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