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V$OB_TABLET_COMPACTION_HISTORY
更新时间：2026-07-15 20:56:59
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说明
该视图从 V4.0.0 版本开始引入。
功能描述
展示当前租户在当前节点上 Tablet 级 Compaction 的历史信息。
字段说明
| 字段名称 | 类型 | 是否可以为 NULL | 描述 |
|---|---|---|---|
| SVR_IP | VARCHAR2(46) | NO | 服务器 IP 地址 |
| SVR_PORT | NUMBER(38) | NO | 服务器端口号 |
| TENANT_ID | NUMBER(38) | NO | 租户 ID |
| LS_ID | NUMBER(38) | NO | 日志流 ID |
| TABLET_ID | NUMBER(38) | NO | 数据分片 ID |
| TYPE | VARCHAR2(64) | NO | Compaction 的类型：
|
| COMPACTION_SCN | NUMBER(38) | NO | 合并版本：minor 为 snapshot_version |
| START_TIME | TIMESTAMP(6) WITH LOCAL TIME ZONE | NO | 开始时间 |
| FINISH_TIME | TIMESTAMP(6) WITH LOCAL TIME ZONE | NO | 结束时间 |
| OCCUPY_SIZE | NUMBER(38) | NO | 数据量 |
| MACRO_BLOCK_COUNT | NUMBER(38) | NO | 宏块数 |
| MULTIPLEXED_MACRO_BLOCK_COUNT | NUMBER(38) | NO | 重用宏块数 |
| NEW_MICRO_COUNT_IN_NEW_MACRO | NUMBER(38) | NO | 新生成宏块中的新微块数 |
| MULTIPLEXED_MICRO_COUNT_IN_NEW_MACRO | NUMBER(38) | NO | 新生成宏块中的重用微块数 |
| TOTAL_ROW_COUNT | NUMBER(38) | NO | 总行数 |
| INCREMENTAL_ROW_COUNT | NUMBER(38) | NO | 新输出的行 |
| COMPRESSION_RATIO | NUMBER(38) | NO | 新数据的压缩率：新增宏块数据在压缩后/压缩前比率 |
| PROGRESSIVE_COMPACTION_ROUND | NUMBER(38) | NO | 渐近合并当前轮次。如果为全量合并，该列为 -1 |
| PROGRESSIVE_COMPACTION_NUM | NUMBER(38) | NO | 渐近合并总轮次 |
| PARALLEL_DEGREE | NUMBER(38) | NO | 并行度 |
| PARALLEL_INFO | VARCHAR2(512) | NO | 并行任务信息，会展示并行任务扫描的数据量/运行时间/输出的数据量的统计信息（min/max/avg） |
| MACRO_ID_LIST | varchar2(256) | NO | 输出的宏块列表，宏块列表过长则不展示 |
| COMMENTS | varchar2(256) | NO | 记录曾经失败的compaction历史信息、本次compaction的耗时采集信息等 |
查询示例
用户租户查询本租户在当前节点上 Tablet 级 Compaction 的历史信息，展示前 5 条记录。
obclient [SYS]> SELECT * FROM SYS.V$OB_TABLET_COMPACTION_HISTORY WHERE ROWNUM <= 5;
查询结果如下：
+----------------+----------+-----------+-------+-----------+-----------------+---------------------+------------------------------+------------------------------+-----------------------------------+-------------+-------------------+-------------------------------+------------------------------+--------------------------------------+-----------------+-----------------------+-------------------+---------------------+------------------------------+----------------------------+-----------------+---------------+----------------------------------------------------------+---------------+----------------------------------------+
| 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 | 1004 | 1002 | 200005 | MAJOR_MERGE | 1735668003058920000 | 01-JAN-25 02.00.17.693978 AM | 01-JAN-25 02.00.17.694744 AM | YB42AC1E87E3-00062A8B7F671A80-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1; | NULL | extra_info="time_guard=total=5.30ms;"; |
| 172.xx.xxx.xxx | 2882 | 1004 | 1002 | 200002 | MAJOR_MERGE | 1735668003058920000 | 01-JAN-25 02.00.17.693997 AM | 01-JAN-25 02.00.17.694742 AM | YB42AC1E87E3-00062A8B7F671A81-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1; | NULL | extra_info="time_guard=total=5.28ms;"; |
| 172.xx.xxx.xxx | 2882 | 1004 | 1002 | 200002 | MAJOR_MERGE | 1735754404488391000 | 02-JAN-25 02.00.22.055200 AM | 02-JAN-25 02.00.22.055829 AM | YB42AC1E87E3-00062A8B7F671A86-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1735668003058920000; | NULL | extra_info="time_guard=total=7.00ms;"; |
| 172.xx.xxx.xxx | 2882 | 1004 | 1002 | 200005 | MAJOR_MERGE | 1735754404488391000 | 02-JAN-25 02.00.22.055218 AM | 02-JAN-25 02.00.22.055908 AM | YB42AC1E87E3-00062A8B7F671A87-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | - | table_cnt=1,[MAJOR]snapshot_version=1735668003058920000; | NULL | extra_info="time_guard=total=7.13ms;"; |
| 172.xx.xxx.xxx | 2882 | 1004 | 1002 | 200002 | MDS_TABLE_MERGE | 1735631615655906000 | 31-DEC-24 03.53.35.861699 PM | 31-DEC-24 03.53.35.863623 PM | YB42AC1E87E3-00062A8B7F671A7C-0-0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | - | NULL | NULL | extra_info="time_guard=total=1.92ms;"; |
+----------------+----------+-----------+-------+-----------+-----------------+---------------------+------------------------------+------------------------------+-----------------------------------+-------------+-------------------+-------------------------------+------------------------------+--------------------------------------+-----------------+-----------------------+-------------------+---------------------+------------------------------+----------------------------+-----------------+---------------+----------------------------------------------------------+---------------+----------------------------------------+
5 rows in set
相关视图或文档
查看所有节点上 Tablet 级的合并的详细历史信息：GV$OB_TABLET_COMPACTION_HISTORY
查看当前节点上 Tablet 级 Compaction 的进度信息：V$OB_TABLET_COMPACTION_PROGRESS
