Note
This view is available starting with V4.0.0.
Purpose
This view displays the history of task-level backup tasks for all tenants in the cluster.
Columns
| Column | Type | Nullable | Description |
|---|---|---|---|
| TENANT_ID | bigint(20) | NO | The tenant ID. |
| TASK_ID | bigint(20) | NO | The ID of the task-level backup task, which corresponds to the backup set. |
| JOB_ID | bigint(20) | NO | The ID of the job to which the task belongs. |
| INCARNATION | bigint(20) | NO | The number of incarnations after flashback database. |
| BACKUP_SET_ID | bigint(20) | NO | The ID of the backup set corresponding to the task. |
| START_TIMESTAMP | timestamp(6) | NO | The start time of the task. |
| END_TIMESTAMP | timestamp(6) | NO | The end time of the task. |
| STATUS | varchar(4096) | NO | The status of the backup. |
| START_SCN | bigint(20) unsigned | NO | The SCN at which the backup started. |
| END_SCN | bigint(20) unsigned | NO | The SCN at which the backup ended. |
| USER_LS_START_SCN | bigint(20) unsigned | NO | The SCN of the backup log stream meta data. |
| ENCRYPTION_MODE | varchar(4096) | YES | The encryption mode. Valid values: None: indicates that no encryption is performed. Password: indicates that only password protection is used. Password Encryption: indicates that encryption is performed and password protection is used. Transparent Encryption: indicates that TDE encryption is used. Dual mode Encryption: indicates that TDE encryption and password protection are used. Currently, only the None and Password modes are supported. |
| PASSWD | varchar(4096) | YES | The password. |
| INPUT_BYTES | bigint(20) | YES | The number of input bytes. |
| OUTPUT_BYTES | bigint(20) | YES | The number of output bytes. |
| OUTPUT_RATE_BYTES | decimal(28,4) | NO | The number of output bytes per second. |
| EXTRA_META_BYTES | bigint(20) | YES | The number of extra bytes. |
| TABLET_COUNT | bigint(20) | YES | The total number of tablets. |
| FINISH_TABLET_COUNT | bigint(20) | YES | The total number of tablets that have been backed up. |
| MACRO_BLOCK_COUNT | bigint(20) | YES | The number of macroblocks. |
| FINISH_MACRO_BLOCK_COUNT | bigint(20) | YES | The number of macroblocks that have been backed up. |
| FILE_COUNT | bigint(20) | YES | The number of backup files. |
| META_TURN_ID | bigint(20) | YES | The number of backup meta data rounds. |
| DATA_TURN_ID | bigint(20) | YES | The number of backup data rounds. |
| RESULT | bigint(20) | YES | The error code of the backup. |
| COMMENT | varchar(4096) | YES | The description of the error code. |
| PATH | varchar(4096) | YES | The backup path. |
| MINOR_TURN_ID | bigint(20) | NO | The number of rounds at which minor data backup ended. |
| MAJOR_TURN_ID | bigint(20) | NO | The number of rounds at which major data backup ended. |
Sample query
Query the history of task-level backup tasks for tenant 1002 in the sys tenant.
obclient [oceanbase]> SELECT * FROM oceanbase.CDB_OB_BACKUP_TASK_HISTORY WHERE TENANT_ID = 1002\G
The query result is as follows:
*************************** 1. row ***************************
TENANT_ID: 1002
TASK_ID: 1
JOB_ID: 1
INCARNATION: 1
BACKUP_SET_ID: 1
START_TIMESTAMP: 2025-01-07 14:02:11.456564
END_TIMESTAMP: 2025-01-07 14:04:31.155906
STATUS: COMPLETED
START_SCN: 1736229737396159000
END_SCN: 1736229871129903000
USER_LS_START_SCN: 1736229748325655000
ENCRYPTION_MODE: NONE
PASSWD:
INPUT_BYTES: 217101469
OUTPUT_BYTES: 22114592
OUTPUT_RATE_BYTES: 158301.3326
EXTRA_META_BYTES: 0
TABLET_COUNT: 680
FINISH_TABLET_COUNT: 680
MACRO_BLOCK_COUNT: 103
FINISH_MACRO_BLOCK_COUNT: 103
FILE_COUNT: 0
META_TURN_ID: 1
DATA_TURN_ID: 0
RESULT: 0
COMMENT:
PATH: file:///home/admin/oceanbase/backupdata
MINOR_TURN_ID: 1
MAJOR_TURN_ID: 1
*************************** 2. row ***************************
TENANT_ID: 1002
TASK_ID: 2
JOB_ID: 2
INCARNATION: 1
BACKUP_SET_ID: 2
START_TIMESTAMP: 2025-01-07 14:24:12.797543
END_TIMESTAMP: 2025-01-07 14:26:22.451703
STATUS: COMPLETED
START_SCN: 1736231071297670000
END_SCN: 1736231182431006000
USER_LS_START_SCN: 1736231080783109000
ENCRYPTION_MODE: NONE
PASSWD:
INPUT_BYTES: 229685436
OUTPUT_BYTES: 20673067
OUTPUT_RATE_BYTES: 159447.7724
EXTRA_META_BYTES: 0
TABLET_COUNT: 680
FINISH_TABLET_COUNT: 680
MACRO_BLOCK_COUNT: 109
FINISH_MACRO_BLOCK_COUNT: 109
FILE_COUNT: 0
META_TURN_ID: 1
DATA_TURN_ID: 0
RESULT: 0
COMMENT:
PATH: file:///home/admin/oceanbase/backupdata
MINOR_TURN_ID: 1
MAJOR_TURN_ID: 1
2 rows in set