--- title: "查看合并信息 - OceanBase 数据库 V4.3.0 | OceanBase 文档中心" description: 查看合并信息 发起合并后，您可以通过视图来查看合并信息。 合并的过程可以通过视图进行查看，通常合并的时间是取决于两次合并之间的数据变化量。两次合并之间的数据变化大，合并的时间会更长。同时，合并的线程数、合并时的集群压力等都影响合并的时间长短。 系统租户查看所有租户的合并信息 系统租户可以通过视图来观察所有租户的租户级… --- 切换语言 - 中文站 - 简体中文 - International - English - 日本站 - 日本語 文档反馈![](https://mdn.alipayobjects.com/huamei_22khvb/afts/img/A*P8CuR4UJ_FkAAAAAAAAAAAAADiGDAQ/original) OceanBase 数据库分布式版 - V 4.3.0 # 查看合并信息 更新时间：2026-04-10 11:58:35 [编辑](https://github.com/oceanbase/oceanbase-doc/edit/V4.3.0/zh-CN/700.reference/200.system-management/500.manage-data-storage/200.merge-management/500.view-merge-process.md) 发起合并后，您可以通过视图来查看合并信息。 合并的过程可以通过视图进行查看，通常合并的时间是取决于两次合并之间的数据变化量。两次合并之间的数据变化大，合并的时间会更长。同时，合并的线程数、合并时的集群压力等都影响合并的时间长短。 ## 系统租户查看所有租户的合并信息 系统租户可以通过视图来观察所有租户的租户级合并信息和分区级合并信息。 1. 使用 `root` 用户登录集群的 `sys` 租户。 2. 执行以下语句，查看合并信息。 - 通过视图 `CDB_OB_ZONE_MAJOR_COMPACTION` 或 `CDB_OB_MAJOR_COMPACTION` 查看租户级合并信息。 视图 `CDB_OB_ZONE_MAJOR_COMPACTION` 展示了所有租户各个 Zone 的合并过程。 ```shel obclient> SELECT * FROM oceanbase.CDB_OB_ZONE_MAJOR_COMPACTION; ``` 查询结果如下： ```shell +-----------+-------+---------------------+---------------------+----------------------------+----------------------------+--------+ | TENANT_ID | ZONE | BROADCAST_SCN | LAST_SCN | LAST_FINISH_TIME | START_TIME | STATUS | +-----------+-------+---------------------+---------------------+----------------------------+----------------------------+--------+ | 1 | zone1 | 1748368801021617000 | 1748368801021617000 | 2025-05-28 02:04:15.351286 | 2025-05-28 02:00:01.051592 | IDLE | | 1001 | zone1 | 1748368802924607000 | 1748368802924607000 | 2025-05-28 02:02:16.412661 | 2025-05-28 02:00:02.965810 | IDLE | | 1002 | zone1 | 1748368802035321000 | 1748368802035321000 | 2025-05-28 02:03:25.019173 | 2025-05-28 02:00:02.090687 | IDLE | | 1003 | zone1 | 1748368802977311000 | 1748368802977311000 | 2025-05-28 02:02:46.565036 | 2025-05-28 02:00:03.009192 | IDLE | | 1004 | zone1 | 1748368801786323000 | 1748368801786323000 | 2025-05-28 02:03:54.629630 | 2025-05-28 02:00:01.820863 | IDLE | +-----------+-------+---------------------+---------------------+----------------------------+----------------------------+--------+ 5 rows in set ``` 在执行结果中观察 `status` 列，部分字段说明如下表所示。 | 字段 | 说明 | | --- | --- | | TENANT_ID | 租户 ID。 | | ZONE | Zone 名称。 | | BROADCAST_SCN | 广播的合并版本号。 | | LAST_SCN | 上一次合并的版本号。 | | LAST_FINISH_TIME | 上一次合并结束时间。 | | START_TIME | 合并开始时间。 | | STATUS | 合并状态： - `IDLE`：未在合并中 - `COMPACTING`：正在合并中 - `VERIFYING`：正在校验 Checksum 中 | 视图 `CDB_OB_ZONE_MAJOR_COMPACTION` 展示了所有租户的合并全局信息。 ```shell obclient> SELECT * FROM oceanbase.CDB_OB_MAJOR_COMPACTION; ``` 查询结果如下： ```shell +-----------+---------------------+----------------------------+----------------------+---------------------+----------------------------+----------------------------+--------+----------+--------------+------+ | TENANT_ID | FROZEN_SCN | FROZEN_TIME | GLOBAL_BROADCAST_SCN | LAST_SCN | LAST_FINISH_TIME | START_TIME | STATUS | IS_ERROR | IS_SUSPENDED | INFO | +-----------+---------------------+----------------------------+----------------------+---------------------+----------------------------+----------------------------+--------+----------+--------------+------+ | 1 | 1748368801021617000 | 2025-05-28 02:00:01.021617 | 1748368801021617000 | 1748368801021617000 | 2025-05-28 02:04:15.380802 | 2025-05-28 02:00:01.042282 | IDLE | NO | NO | | | 1001 | 1748368802924607000 | 2025-05-28 02:00:02.924607 | 1748368802924607000 | 1748368802924607000 | 2025-05-28 02:02:16.440351 | 2025-05-28 02:00:02.957000 | IDLE | NO | NO | | | 1002 | 1748368802035321000 | 2025-05-28 02:00:02.035321 | 1748368802035321000 | 1748368802035321000 | 2025-05-28 02:03:25.035666 | 2025-05-28 02:00:02.075224 | IDLE | NO | NO | | | 1003 | 1748368802977311000 | 2025-05-28 02:00:02.977311 | 1748368802977311000 | 1748368802977311000 | 2025-05-28 02:02:46.592681 | 2025-05-28 02:00:03.003544 | IDLE | NO | NO | | | 1004 | 1748368801786323000 | 2025-05-28 02:00:01.786323 | 1748368801786323000 | 1748368801786323000 | 2025-05-28 02:03:54.645389 | 2025-05-28 02:00:01.809475 | IDLE | NO | NO | | +-----------+---------------------+----------------------------+----------------------+---------------------+----------------------------+----------------------------+--------+----------+--------------+------+ 5 rows in set ``` 在执行结果中观察 `status` 列，部分参数的说明如下表所示。 | 字段 | 说明 | | --- | --- | | TENANT_ID | 租户 ID。 | | FROZEN_SCN | 最近一次合并的版本号 | | FROZEN_TIME | `FROZEN_SCN` 的可读时间类型。 | | GLOBAL_BROADCAST_SCN | 全局广播的合并版本。 | | LAST_SCN | 上一个已经完成合并的版本。 | | LAST_FINISH_TIME | 上一次合并结束时间。 | | START_TIME | 合并开始时间。 | | STATUS | 合并状态： - `IDLE`：未在合并中 - `COMPACTING`：正在合并中 - `VERIFYING`：正在校验 Checksum 中 | | IS_ERROR | - YES：合并过程存在错误 - NO： 合并过程没有报错 | | IS_SUSPENDED | - YES：暂停合并 - NO： 没有暂停合并 | | INFO | 展示合并信息。 | - 通过视图 `GV$OB_MERGE_INFO` 或 `GV$OB_TABLET_COMPACTION_HISTORY` 查看分区级合并信息 视图 `GV$OB_MERGE_INFO` 展示了 Tablet 级别的合并基础统计信息。 ```shell obclient [oceanbase]> SELECT * FROM oceanbase.GV$OB_MERGE_INFO WHERE TENANT_ID=1002 AND TABLET_ID=200001 ORDER BY START_TIME DESC LIMIT 10; ``` 查询结果如下： ```shell +----------------+----------+-----------+-------+-----------+-----------------+---------------------+----------------------------+----------------------------+-------------------+-----------+-----------------+ | SVR_IP | SVR_PORT | TENANT_ID | LS_ID | TABLET_ID | ACTION | COMPACTION_SCN | START_TIME | END_TIME | MACRO_BLOCK_COUNT | REUSE_PCT | PARALLEL_DEGREE | +----------------+----------+-----------+-------+-----------+-----------------+---------------------+----------------------------+----------------------------+-------------------+-----------+-----------------+ | 172.xx.xxx.xxx | 2882 | 1002 | 1001 | 200001 | MAJOR_MERGE | 1706119204801812283 | 2024-01-25 02:03:03.876629 | 2024-01-25 02:03:03.929758 | 0 | 0.00 | 1 | | 172.xx.xxx.xxx | 2882 | 1002 | 1001 | 200001 | MDS_TABLE_MERGE | 1706086731631303497 | 2024-01-24 16:58:52.078436 | 2024-01-24 16:58:52.080722 | 0 | 0.00 | 0 | | 172.xx.xxx.xxx | 2882 | 1002 | 1001 | 200001 | MEDIUM_MERGE | 1706086435242718629 | 2024-01-24 16:56:57.297697 | 2024-01-24 16:56:57.305654 | 0 | 0.00 | 1 | | 172.xx.xxx.xxx | 2882 | 1002 | 1001 | 200001 | MDS_TABLE_MERGE | 1706086356639492056 | 2024-01-24 16:52:37.067139 | 2024-01-24 16:52:37.069771 | 0 | 0.00 | 0 | +----------------+----------+-----------+-------+-----------+-----------------+---------------------+----------------------------+----------------------------+-------------------+-----------+-----------------+ 4 rows in set ``` 查询结果中，`ACTION` 列中各值的含义如下： - `MDS_TABLE_MERGE`：将系统的元数据按照 SSTable 的格式持久化到磁盘里。 - `MAJOR_MERGE`：租户级合并 - `MEDIUM_MERGE`：分区级合并 - `MINI_MERGE`：Mini Compaction，将 MemTable 转变成 Mini SSTable。 - `MINOR_MERGE`：Minor Compaction，多个 Mini SSTable 合成一个新的 Mini SSTable 或者多个 Mini SSTable 与一个 Minor SSTable 合成一个新的 Minor SSTable。 - `META_MAJOR_MERGE`：一种特殊的 Compaction 类型，是将某个指定时间点之前的数据合成一个 Meta Major SSTable，其数据格式与 Major SSTable 一样，不包含多版本数据和未提交事务数据。 视图 `GV$OB_MERGE_INFO` 中更多字段的详细说明，请参见 [GV$OB_MERGE_INFO](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000000641518)。 视图 `GV$OB_TABLET_COMPACTION_HISTORY` 展示了 Tablet 级的合并的详细历史信息。 ```sql obclient [oceanbase]> SELECT * FROM oceanbase.GV$OB_TABLET_COMPACTION_HISTORY WHERE TENANT_ID=1002 AND TABLET_ID=200001 ORDER BY START_TIME DESC LIMIT 10; ``` 查询结果如下： ```shell +----------------+----------+-----------+-------+-----------+-----------------+---------------------+----------------------------+----------------------------+-----------------------------------+-------------+-------------------+-------------------------------+------------------------------+--------------------------------------+-----------------+-----------------------+-------------------+---------------------+------------------------------+----------------------------+-----------------+---------------+----------------------------------------------------------+---------------+-----------------------------------------------------------------------------------------------------------+-------------+-----------+----------------------------------------------------------------+-------------------+ | SVR_IP | SVR_PORT | TENANT_ID | LS_ID | TABLET_ID | TYPE | COMPACTION_SCN | START_TIME | FINISH_TIME | TASK_ID | OCCUPY_SIZE | MACRO_BLOCK_COUNT | MULTIPLEXED_MACRO_BLOCK_COUNT | NEW_MICRO_COUNT_IN_NEW_MACRO | MULTIPLEXED_MICRO_COUNT_IN_NEW_MACRO | TOTAL_ROW_COUNT | INCREMENTAL_ROW_COUNT | COMPRESSION_RATIO | NEW_FLUSH_DATA_RATE | PROGRESSIVE_COMPACTION_ROUND | PROGRESSIVE_COMPACTION_NUM | PARALLEL_DEGREE | PARALLEL_INFO | PARTICIPANT_TABLE | MACRO_ID_LIST | COMMENTS | START_CG_ID | END_CG_ID | KEPT_SNAPSHOT | MERGE_LEVEL | +----------------+----------+-----------+-------+-----------+-----------------+---------------------+----------------------------+----------------------------+-----------------------------------+-------------+-------------------+-------------------------------+------------------------------+--------------------------------------+-----------------+-----------------------+-------------------+---------------------+------------------------------+----------------------------+-----------------+---------------+----------------------------------------------------------+---------------+-----------------------------------------------------------------------------------------------------------+-------------+-----------+----------------------------------------------------------------+-------------------+ | 172.xx.xxx.xxx | 2882 | 1002 | 1001 | 200001 | MAJOR_MERGE | 1706119204801812283 | 2024-01-25 02:03:03.876629 | 2024-01-25 02:03:03.929758 | YB42AC1E87CA-00060FAC10C57D5C-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1706086435242718629; | | comment="merge_reason="TENANT_MAJOR";time=add_time:1706119382538344|wait_schedule_time=1.34s|total=53.;"; | 0 | 0 | {type:"SNAPSHOT_UNDO_RETENTION", snapshot:1706117574893656222} | MICRO_BLOCK_LEVEL | | 172.xx.xxx.xxx | 2882 | 1002 | 1001 | 200001 | MDS_TABLE_MERGE | 1706086731631303497 | 2024-01-24 16:58:52.078436 | 2024-01-24 16:58:52.080722 | YB42AC1E87CA-00060FAC10C5797A-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | - | | | comment="time=add_time:1706086732078234|total=2.29ms;"; | 0 | 0 | | MICRO_BLOCK_LEVEL | | 172.xx.xxx.xxx | 2882 | 1002 | 1001 | 200001 | MEDIUM_MERGE | 1706086435242718629 | 2024-01-24 16:56:57.297697 | 2024-01-24 16:56:57.305654 | YB42AC1E87CA-00060FAC10C57979-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1; | | comment="merge_reason="USER_REQUEST";time=add_time:1706086617297507|total=7.96ms;"; | 0 | 0 | {type:"SNAPSHOT_UNDO_RETENTION", snapshot:1706084810844670506} | MACRO_BLOCK_LEVEL | | 172.xx.xxx.xxx | 2882 | 1002 | 1001 | 200001 | MDS_TABLE_MERGE | 1706086356639492056 | 2024-01-24 16:52:37.067139 | 2024-01-24 16:52:37.069771 | YB42AC1E87CA-00060FAC10C57971-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | - | | | comment="time=add_time:1706086357066962|total=2.63ms;"; | 0 | 0 | | MICRO_BLOCK_LEVEL | +----------------+----------+-----------+-------+-----------+-----------------+---------------------+----------------------------+----------------------------+-----------------------------------+-------------+-------------------+-------------------------------+------------------------------+--------------------------------------+-----------------+-----------------------+-------------------+---------------------+------------------------------+----------------------------+-----------------+---------------+----------------------------------------------------------+---------------+-----------------------------------------------------------------------------------------------------------+-------------+-----------+----------------------------------------------------------------+-------------------+ 4 rows in set ``` 查询结果中，`TYPE` 列中各值的含义如下： 视图 `GV$OB_TABLET_COMPACTION_HISTORY` 中更多字段的详细说明，请参见 [GV$OB_TABLET_COMPACTION_HISTORY](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000000641514)。 ## 用户租户查看本租户的合并信息 用户租户也可以通过视图来查看本租户的合并信息。 1. 用户租户的租户管理员登录到数据库。 2. 执行以下语句，查看合并信息。 MySQL 模式 Oracle 模式 - 通过视图 `DBA_OB_ZONE_MAJOR_COMPACTION` 或 `DBA_OB_MAJOR_COMPACTION` 查看本租户的租户级合并信息。 视图 `DBA_OB_ZONE_MAJOR_COMPACTION` 展示了本租户各个 Zone 的合并信息。 ```sql obclient [oceanbase]> SELECT * FROM oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION; ``` 查询结果的示例如下： ```shell +-------+---------------------+---------------------+----------------------------+----------------------------+--------+ | ZONE | BROADCAST_SCN | LAST_SCN | LAST_FINISH_TIME | START_TIME | STATUS | +-------+---------------------+---------------------+----------------------------+----------------------------+--------+ | zone1 | 1748455202538454000 | 1748455202538454000 | 2025-05-29 02:04:34.174642 | 2025-05-29 02:00:02.679713 | IDLE | +-------+---------------------+---------------------+----------------------------+----------------------------+--------+ 1 row in set ``` | 字段 | 说明 | | --- | --- | | ZONE | Zone 名称。 | | BROADCAST_SCN | 广播的合并版本号。 | | LAST_SCN | 上一次合并的版本号。 | | LAST_FINISH_TIME | 上一次合并结束时间。 | | START_TIME | 合并开始时间。 | | STATUS | 合并状态： - `IDLE`：未在合并中 - `COMPACTING`：正在合并中 - `VERIFYING`：正在校验 Checksum 中 | 视图 `DBA_OB_MAJOR_COMPACTION` 展示了本租户的合并全局信息。 ```shell obclient [oceanbase]> SELECT * FROM oceanbase.DBA_OB_MAJOR_COMPACTION; ``` 查询结果如下： ```shell +---------------------+----------------------------+----------------------+---------------------+----------------------------+----------------------------+--------+----------+--------------+------+ | FROZEN_SCN | FROZEN_TIME | GLOBAL_BROADCAST_SCN | LAST_SCN | LAST_FINISH_TIME | START_TIME | STATUS | IS_ERROR | IS_SUSPENDED | INFO | +---------------------+----------------------------+----------------------+---------------------+----------------------------+----------------------------+--------+----------+--------------+------+ | 1748455202538454000 | 2025-05-29 02:00:02.538454 | 1748455202538454000 | 1748455202538454000 | 2025-05-29 02:04:34.171690 | 2025-05-29 02:00:02.670090 | IDLE | NO | NO | | +---------------------+----------------------------+----------------------+---------------------+----------------------------+----------------------------+--------+----------+--------------+------+ 1 row in set ``` | 字段 | 说明 | | --- | --- | | FROZEN_SCN | 最近一次合并的版本号 | | FROZEN_TIME | `FROZEN_SCN` 的可读时间类型。 | | GLOBAL_BROADCAST_SCN | 全局广播的合并版本。 | | LAST_SCN | 上一个已经完成合并的版本。 | | LAST_FINISH_TIME | 上一次合并结束时间。 | | START_TIME | 合并开始时间。 | | STATUS | 合并状态： - `IDLE`：未在合并中 - `COMPACTING`：正在合并中 - `VERIFYING`：正在校验 Checksum 中 | | IS_ERROR | - `YES`：合并过程存在错误 - `NO`： 合并过程没有报错 | | IS_SUSPENDED | - `YES`：暂停合并 - `NO`： 没有暂停合并 | | INFO | 展示合并信息。 | - 通过视图 `GV$OB_TABLET_COMPACTION_HISTORY` 查看本租户分区级合并信息。 ```shell obclient [oceanbase]> SELECT * FROM oceanbase.GV$OB_TABLET_COMPACTION_HISTORY WHERE TABLET_ID=200001 ORDER BY START_TIME DESC LIMIT 2\G ``` 查询结果如下： ```shell *************************** 1. row *************************** SVR_IP: 11.xxx.xxx.xx SVR_PORT: 13845 TENANT_ID: 1002 LS_ID: 1001 TABLET_ID: 200001 TYPE: MDS_MINOR_MERGE COMPACTION_SCN: 1748473740429469000 START_TIME: 2025-05-29 07:09:01.089327 FINISH_TIME: 2025-05-29 07:09:01.105625 TASK_ID: Y36150BA2D939-00062481AF9F5E33-0-0 OCCUPY_SIZE: 483 MACRO_BLOCK_COUNT: 1 MULTIPLEXED_MACRO_BLOCK_COUNT: 0 NEW_MICRO_COUNT_IN_NEW_MACRO: 1 MULTIPLEXED_MICRO_COUNT_IN_NEW_MACRO: 0 TOTAL_ROW_COUNT: 1 INCREMENTAL_ROW_COUNT: 1 COMPRESSION_RATIO: 1 NEW_FLUSH_DATA_RATE: 53 PROGRESSIVE_COMPACTION_ROUND: 0 PROGRESSIVE_COMPACTION_NUM: 0 PARALLEL_DEGREE: 1 PARALLEL_INFO: - PARTICIPANT_TABLE: table_cnt=2,start_scn=1,end_scn=1748473740429469000; MACRO_ID_LIST: 49070 COMMENTS: comment="block_io_us=140;cost_mb=2;time=add_time:1748473741088728|total=16.58ms;"; START_CG_ID: 0 END_CG_ID: 0 KEPT_SNAPSHOT: MERGE_LEVEL: MACRO_BLOCK_LEVEL *************************** 2. row *************************** SVR_IP: 11.xxx.xxx.xx SVR_PORT: 13846 TENANT_ID: 1002 LS_ID: 1001 TABLET_ID: 200001 TYPE: MDS_MINOR_MERGE COMPACTION_SCN: 1748473740429469001 START_TIME: 2025-05-29 07:09:01.070737 FINISH_TIME: 2025-05-29 07:09:01.086292 TASK_ID: Y36160BA2D939-000624702F8633D4-0-0 OCCUPY_SIZE: 483 MACRO_BLOCK_COUNT: 1 MULTIPLEXED_MACRO_BLOCK_COUNT: 0 NEW_MICRO_COUNT_IN_NEW_MACRO: 1 MULTIPLEXED_MICRO_COUNT_IN_NEW_MACRO: 0 TOTAL_ROW_COUNT: 1 INCREMENTAL_ROW_COUNT: 1 COMPRESSION_RATIO: 1 NEW_FLUSH_DATA_RATE: 68 PROGRESSIVE_COMPACTION_ROUND: 0 PROGRESSIVE_COMPACTION_NUM: 0 PARALLEL_DEGREE: 1 PARALLEL_INFO: - PARTICIPANT_TABLE: table_cnt=2,start_scn=1,end_scn=1748473740429469001; MACRO_ID_LIST: 48654 COMMENTS: comment="block_io_us=115;cost_mb=2;time=add_time:1748473741069694|total=15.66ms;"; START_CG_ID: 0 END_CG_ID: 0 KEPT_SNAPSHOT: MERGE_LEVEL: MACRO_BLOCK_LEVEL 2 rows in set ``` 视图 `GV$OB_TABLET_COMPACTION_HISTORY` 中更多字段的详细说明，参见 [GV$OB_TABLET_COMPACTION_HISTORY](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000000641588)。 - 通过视图 `DBA_OB_ZONE_MAJOR_COMPACTION` 或 `DBA_OB_MAJOR_COMPACTION` 查看本租户的租户级合并信息。 ```shell obclient [TEST]> SELECT * FROM SYS.DBA_OB_ZONE_MAJOR_COMPACTION; ``` 查询结果如下： ```shell +-------+---------------------+----------+------------------+------------------+------------+ | ZONE | BROADCAST_SCN | LAST_SCN | LAST_FINISH_TIME | START_TIME | STATUS | +-------+---------------------+----------+------------------+------------------+------------+ | zone1 | 1748487596765126000 | 1 | 0 | 1748487596921347 | COMPACTING | +-------+---------------------+----------+------------------+------------------+------------+ 1 row in set ``` ```shell obclient [TEST]> SELECT * FROM SYS.DBA_OB_MAJOR_COMPACTION; ``` 查询结果如下： ```shell +---------------------+----------------------+----------+------------------+------------------+------------+----------+--------------+------+ | FROZEN_SCN | GLOBAL_BROADCAST_SCN | LAST_SCN | LAST_FINISH_TIME | START_TIME | STATUS | IS_ERROR | IS_SUSPENDED | INFO | +---------------------+----------------------+----------+------------------+------------------+------------+----------+--------------+------+ | 1748487596765126000 | 1748487596765126000 | 1 | 0 | 1748487596900693 | COMPACTING | NO | NO | NULL | +---------------------+----------------------+----------+------------------+------------------+------------+----------+--------------+------+ 1 row in set ``` | 字段 | 说明 | | --- | --- | | FROZEN_SCN | 最新的合并快照。 | | GLOBAL_BROADCAST_SCN | 全局广播的合并版本。 | | LAST_SCN | 上一个已经完成合并的版本。 | | LAST_FINISH_TIME | 上一次合并结束时间。 | | START_TIME | 合并开始时间。 | | STATUS | 合并状态： - IDLE：未在合并中 - COMPACTING：正在合并中 - VERIFYING：正在校验 Checksum 中 | | IS_ERROR | - YES：合并过程存在错误 - NO： 合并过程没有报错 | | IS_SUSPENDED | - YES：暂停合并 - NO： 没有暂停合并 | | INFO | 展示合并信息。 | - 通过视图 `GV$OB_TABLET_COMPACTION_HISTORY` 查看本租户分区级合并信息。 ```shell obclient [TEST]> SELECT * FROM SYS.GV$OB_TABLET_COMPACTION_HISTORY WHERE TABLET_ID=100003 AND ROWNUM<=2 ORDER BY START_TIME\G ``` 查询结果如下： ```shell *************************** 1. row *************************** SVR_IP: 11.xxx.xxx.xx SVR_PORT: 13847 TENANT_ID: 1008 LS_ID: 1 TABLET_ID: 100003 TYPE: MAJOR_MERGE COMPACTION_SCN: 1747764000946746000 START_TIME: 21-MAY-25 02.03.11.804366 AM FINISH_TIME: 21-MAY-25 02.03.11.862071 AM TASK_ID: Y36170BA2D939-00062470D0887DEB-0-0 OCCUPY_SIZE: 72990 MACRO_BLOCK_COUNT: 1 MULTIPLEXED_MACRO_BLOCK_COUNT: 0 NEW_MICRO_COUNT_IN_NEW_MACRO: 5 MULTIPLEXED_MICRO_COUNT_IN_NEW_MACRO: 0 TOTAL_ROW_COUNT: 2113 INCREMENTAL_ROW_COUNT: 2113 COMPRESSION_RATIO: 1 NEW_FLUSH_DATA_RATE: 2219 PROGRESSIVE_COMPACTION_ROUND: 1 PROGRESSIVE_COMPACTION_NUM: 0 PARALLEL_DEGREE: 1 PARALLEL_INFO: - PARTICIPANT_TABLE: table_cnt=3,[MAJOR]snapshot_version=1747677607905857000;[MINI]start_scn=1747677607968325000,end_scn=1747764079924537000; MACRO_ID_LIST: 77873 COMMENTS: comment="block_io_us=426;cost_mb=2;time=add_time:1747764190757821|wait_schedule_time=1.05s|total=58.70ms;"; START_CG_ID: 0 END_CG_ID: 0 KEPT_SNAPSHOT: {type:"UNDO_RETENTION", snapshot:1747762383511031000} MERGE_LEVEL: MACRO_BLOCK_LEVEL *************************** 2. row *************************** SVR_IP: 11.xxx.xxx.xx SVR_PORT: 13847 TENANT_ID: 1008 LS_ID: 1 TABLET_ID: 100003 TYPE: MAJOR_MERGE COMPACTION_SCN: 1747850534446081000 START_TIME: 22-MAY-25 02.04.18.276412 AM FINISH_TIME: 22-MAY-25 02.04.18.326642 AM TASK_ID: Y36170BA2D939-00062470D088DCD8-0-0 OCCUPY_SIZE: 73014 MACRO_BLOCK_COUNT: 1 MULTIPLEXED_MACRO_BLOCK_COUNT: 0 NEW_MICRO_COUNT_IN_NEW_MACRO: 5 MULTIPLEXED_MICRO_COUNT_IN_NEW_MACRO: 0 TOTAL_ROW_COUNT: 2113 INCREMENTAL_ROW_COUNT: 2113 COMPRESSION_RATIO: 1 NEW_FLUSH_DATA_RATE: 2280 PROGRESSIVE_COMPACTION_ROUND: 1 PROGRESSIVE_COMPACTION_NUM: 0 PARALLEL_DEGREE: 1 PARALLEL_INFO: - PARTICIPANT_TABLE: table_cnt=4,[MAJOR]snapshot_version=1747764000946746000;[MINI]start_scn=1747764000972140000,end_scn=1747850534468650002; MACRO_ID_LIST: 89703 COMMENTS: comment="block_io_us=233;cost_mb=2;time=add_time:1747850656732787|wait_schedule_time=1.54s|total=50.81ms;"; START_CG_ID: 0 END_CG_ID: 0 KEPT_SNAPSHOT: {type:"LS_RESERVED", snapshot:1747848846684315000} MERGE_LEVEL: MACRO_BLOCK_LEVEL 2 rows in set ``` 视图 `GV$OB_TABLET_COMPACTION_HISTORY` 中更多字段的详细说明，请参见 [GV$OB_TABLET_COMPACTION_HISTORY](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000000640711)。 上一篇 下一篇 ![有帮助](https://gw.alipayobjects.com/mdn/ob_asset/afts/img/A*y6ocSqN8cqsAAAAAAAAAAAAAARQnAQ)![无帮助](https://gw.alipayobjects.com/mdn/ob_asset/afts/img/A*BG9IQJyLHF8AAAAAAAAAAAAAARQnAQ)![反馈](https://gw.alipayobjects.com/mdn/ob_asset/afts/img/A*eTWdQKCRKHwAAAAAAAAAAAAAARQnAQ)[AI](https://www.oceanbase.com/obi) 咨询热线