--- title: "GV$OB_TABLET_COMPACTION_HISTORY - OceanBase 数据库 V4.2.5 | OceanBase 文档中心" description: GV$OB_TABLET_COMPACTION_HISTORY 说明 该视图从 V4.0.0 版本开始引入。 功能描述 展示当前租户在所有节点上 Tablet 级 Compaction 的历史信息。 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 SVR_… --- 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 4.2.5 LTS # GV$OB_TABLET_COMPACTION_HISTORY 更新时间：2026-07-15 20:42:47 [编辑](https://github.com/oceanbase/oceanbase-doc/edit/V4.2.5/zh-CN/700.reference/700.system-views/400.system-view-of-mysql-mode/300.performance-view-of-mysql-mode/3400.gv-ob_tablet_compaction_history-of-mysql-mode.md) #### 说明 该视图从 V4.0.0 版本开始引入。 ## 功能描述 展示当前租户在所有节点上 Tablet 级 Compaction 的历史信息。 ## 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 | | SVR_PORT | bigint(20) | NO | 服务器端口号 | | TENANT_ID | bigint(20) | NO | 租户ID | | LS_ID | bigint(20) | NO | 日志流ID | | TABLET_ID | bigint(20) | NO | 数据分片ID | | TYPE | varchar(64) | NO | Compaction 的类型： - `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。 | | COMPACTION_SCN | bigint(20) unsigned | NO | 合并版本信息 | | START_TIME | timestamp(6) | NO | 开始时间 | | FINISH_TIME | timestamp(6) | NO | 结束时间 | | TASK_ID | varchar(64) | NO | 任务执行Trace | | OCCUPY_SIZE | bigint(20) | NO | 数据量 | | MACRO_BLOCK_COUNT | bigint(20) | NO | 宏块数 | | MULTIPLEXED_MACRO_BLOCK_COUNT | bigint(20) | NO | 重用宏块数 | | NEW_MICRO_COUNT_IN_NEW_MACRO | bigint(20) | NO | 新生成宏块中的新微块数 | | MULTIPLEXED_MICRO_COUNT_IN_NEW_MACRO | bigint(20) | NO | 新生成宏块中的重用微块数 | | TOTAL_ROW_COUNT | bigint(20) | NO | 总行数 | | INCREMENTAL_ROW_COUNT | bigint(20) | NO | 新输出的行 | | COMPRESSION_RATIO | double | NO | 新数据的压缩率 = 新增宏块数据在压缩后/压缩前比率 | | NEW_FLUSH_DATA_RATE | bigint(20) | NO | 新数据的输出速度，单位KB/s | | PROGRESSIVE_COMPACTION_ROUND | bigint(20) | NO | 渐近合并当前轮次（如果为全量合并，该列为-1） | | PROGRESSIVE_COMPACTION_NUM | bigint(20) | NO | 渐近合并总轮次 | | PARALLEL_DEGREE | bigint(20) | NO | 并行度 | | PARALLEL_INFO | varchar(512) | NO | 并行任务信息，会展示并行任务扫描的数据量/运行时间/输出的数据量的统计信息（min/max/avg） | | PARTICIPANT_TABLE | varchar(512) | NO | 参与本次compaction的table信息 | | MACRO_ID_LIST | varchar(256) | NO | 输出的宏块列表，宏块列表过长则不展示 | | COMMENTS | varchar(256) | NO | 记录曾经失败的compaction历史信息、本次compaction的耗时采集信息等 | ## 查询示例 用户租户查询本租户在所有节点上 Tablet 级 Compaction 的历史信息，展示前 5 条记录。 ```shell obclient [oceanbase]> SELECT * FROM oceanbase.GV$OB_TABLET_COMPACTION_HISTORY LIMIT 5; ``` 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 | +----------------+----------+-----------+-------+-----------+-------------+---------------------+----------------------------+----------------------------+-----------------------------------+-------------+-------------------+-------------------------------+------------------------------+--------------------------------------+-----------------+-----------------------+-------------------+---------------------+------------------------------+----------------------------+-----------------+---------------+----------------------------------------------------------+---------------+----------------------------------------+ | 172.xx.xxx.xxx | 2882 | 1002 | 1002 | 200001 | MAJOR_MERGE | 1735668000499972000 | 2025-01-01 02:01:29.117128 | 2025-01-01 02:01:29.117776 | YB42AC1E87E3-00062A8B7FB71A82-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1; | | extra_info="time_guard=total=6.48ms;"; | | 172.xx.xxx.xxx | 2882 | 1002 | 1002 | 200008 | MAJOR_MERGE | 1735668000499972000 | 2025-01-01 02:01:29.117383 | 2025-01-01 02:01:29.118068 | YB42AC1E87E3-00062A8B7FB71A84-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1; | | extra_info="time_guard=total=8.29ms;"; | | 172.xx.xxx.xxx | 2882 | 1002 | 1002 | 200004 | MAJOR_MERGE | 1735668000499972000 | 2025-01-01 02:01:29.117143 | 2025-01-01 02:01:29.117783 | YB42AC1E87E3-00062A8B7FB71A83-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1; | | extra_info="time_guard=total=8.76ms;"; | | 172.xx.xxx.xxx | 2882 | 1002 | 1002 | 200004 | MAJOR_MERGE | 1735754402003130000 | 2025-01-02 02:01:33.552858 | 2025-01-02 02:01:33.553673 | YB42AC1E87E3-00062A8B7FB71A8B-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1735668000499972000; | | extra_info="time_guard=total=4.93ms;"; | | 172.xx.xxx.xxx | 2882 | 1002 | 1002 | 200001 | MAJOR_MERGE | 1735754402003130000 | 2025-01-02 02:01:33.553428 | 2025-01-02 02:01:33.554078 | YB42AC1E87E3-00062A8B7FB71A8D-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1735668000499972000; | | extra_info="time_guard=total=5.62ms;"; | +----------------+----------+-----------+-------+-----------+-------------+---------------------+----------------------------+----------------------------+-----------------------------------+-------------+-------------------+-------------------------------+------------------------------+--------------------------------------+-----------------+-----------------------+-------------------+---------------------+------------------------------+----------------------------+-----------------+---------------+----------------------------------------------------------+---------------+----------------------------------------+ 5 rows in set ``` ## 相关视图或文档 - 查看当前节点上 Tablet 级的合并的详细历史信息：[V$OB_TABLET_COMPACTION_HISTORY](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000001501598) - 查看所有节点上 Tablet 级 Compaction 的进度信息：[GV$OB_TABLET_COMPACTION_PROGRESS](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000001501522) - [查看转储信息](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000001500417) - [查看合并信息](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000001500415) 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