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    V$OB_TABLET_COMPACTION_PROGRESS

    Last Updated:2026-04-09 02:53:56  Updated
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    Note

    This view is introduced in OceanBase Database V4.0.0.

    Purpose

    This view displays the progress of tablet-level compactions for the current tenant on the current node.

    Columns

    Field
    Type
    Nullable?
    Description
    SVR_IP VARCHAR2(46) NO The IP address of the server.
    SVR_PORT NUMBER(38) NO The port number of the server.
    TENANT_ID NUMBER(38) NO The tenant ID.
    TYPE VARCHAR2(64) NO The type of compaction. Valid values:
    • MDS_TABLE_MERGE: persists the system metadata in the SSTable format to the disk.
    • MAJOR_MERGE: tenant-level compaction.
    • MEDIUM_MERGE: partition-level compaction.
    • MINI_MERGE: mini compaction. This type converts the MemTable into a mini SSTable.
    • MINOR_MERGE: minor compaction. This type combines multiple mini SSTables into a new mini SSTable or combines multiple mini SSTables with one minor SSTable into a new minor SSTable.
    • META_MAJOR_MERGE: a special type of compaction. This type compacts all data before a specified point in time into a Meta Major SSTable. The data format of the Meta Major SSTable is the same as that of the Major SSTable. The Meta Major SSTable does not contain multi-version data or uncommitted transaction data.
    LS_ID NUMBER(38) NO The log stream ID.
    TABLET_ID NUMBER(38) NO The data shard ID.
    COMPACTION_SCN NUMBER(38) NO The compaction version information.
    TASK_ID VARCHAR2(64) NO The trace ID of the task.
    STATUS VARCHAR2(15) NO The task status.
    DATA_SIZE NUMBER(38) NO The total amount of data to be scanned.
    UNFINISHED_DATA_SIZE NUMBER(38) NO The amount of unscanned data.
    PROGRESSIVE_COMPACTION_ROUND NUMBER(38) NO The progressive compaction round.
    CREATE_TIME TIMESTAMP(6) WITH LOCAL TIME ZONE NO The task creation time.
    START_TIME TIMESTAMP(6) WITH LOCAL TIME ZONE NO The start time.
    ESTIMATED_FINISH_TIME TIMESTAMP(6) WITH LOCAL TIME ZONE NO The estimated finish time.
    START_CG_ID NUMBER(38) NO The start ID of the column group.

    Note

    This field is introduced in OceanBase Database V4.3.0.

    END_CG_ID NUMBER(38) NO The end ID of the column group.

    Note

    This field is introduced in OceanBase Database V4.3.0.

    Sample query

    A user tenant queries the progress of compactions of type MAJOR_MERGE on the current node.

    obclient [oceanbase]> SELECT * FROM SYS.V$OB_TABLET_COMPACTION_PROGRESS WHERE TYPE='MAJOR_MERGE'\G
    

    The query result is as follows:

    +----------------+----------+-----------+-------------+-------+-----------+---------------------+-----------------------------------+--------------+-----------+----------------------+------------------------------+----------------------------+----------------------------+----------------------------+-------------+-----------+
    | SVR_IP         | SVR_PORT | TENANT_ID | TYPE        | LS_ID | TABLET_ID | COMPACTION_SCN      | TASK_ID                           | STATUS       | DATA_SIZE | UNFINISHED_DATA_SIZE | PROGRESSIVE_COMPACTION_ROUND | CREATE_TIME                | START_TIME                 | ESTIMATED_FINISH_TIME      | START_CG_ID | END_CG_ID |
    +----------------+----------+-----------+-------------+-------+-----------+---------------------+-----------------------------------+--------------+-----------+----------------------+------------------------------+----------------------------+----------------------------+----------------------------+-------------+-----------+
    | 172.xx.xxx.xxx |     2882 |      1004 | MAJOR_MERGE |     1 |    101067 | 1751867181650640000 | YB42AC1E87D9-00063837DA7854C4-0-0 | NODE_RUNNING |     21475 |                21475 |                            1 | 2025-07-07 13:49:33.233901 | 2025-07-07 13:49:33.233998 | 2025-07-07 13:49:50.234508 |           0 |         0 |
    +----------------+----------+-----------+-------------+-------+-----------+---------------------+-----------------------------------+--------------+-----------+----------------------+------------------------------+----------------------------+----------------------------+----------------------------+-------------+-----------+
    1 row in set
    

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