Note
This view is available starting with V4.0.0.
Purpose
This view displays the status of all historical and current log archives of the current tenant.
Columns
Column |
Type |
Nullable |
Description |
|---|---|---|---|
| DEST_ID | bigint(20) | NO | The path ID. The system assigns a unique ID to each path. |
| ROUND_ID | bigint(20) | NO | The ID of the round of full clog backup data. |
| INCARNATION | bigint(20) | NO | The number of incarnations after a Flashback Database operation. |
| DEST_NO | bigint(20) | NO | The ID of the log_archive_dest_n parameter. For example, the dest_no of log_archive_dest is 0, and the dest_no of log_archive_dest_1 is 1. |
| STATUS | varchar(64) | NO | The status of the log archive. Valid values:
|
| START_SCN | bigint(20) unsigned | NO | The start SCN of the backup. |
| START_SCN_DISPLAY | datetime(6) | NO | The start SCN converted to a time unit. |
| CHECKPOINT_SCN | bigint(20) unsigned | NO | The current archive SCN. |
| CHECKPOINT_SCN_DISPLAY | datetime(6) | NO | The current archive SCN converted to a time unit. |
| COMPATIBLE | bigint(20) | NO | The compatibility version. |
| BASE_PIECE_ID | bigint(20) | NO | The ID of the first PIECE in the current round. |
| USED_PIECE_ID | bigint(20) | NO | The ID of the PIECE used in the current round. |
| PIECE_SWITCH_INTERVAL | bigint(20) | NO | The interval for switching PIECES. |
| UNIT_SIZE | bigint(20) | NO | The size of a log block that is compressed or encrypted in a single log archive operation. This field is not supported in OceanBase Database. |
| COMPRESSION | varchar(128) | NO | The compression algorithm. Valid values:
|
| INPUT_BYTES | bigint(20) | NO | The size of the data read. |
| INPUT_BYTES_DISPLAY | varchar(27) | NO | The size of the data read, with a unit. For example: 798.01 M or 5.25 G. |
| OUTPUT_BYTES | bigint(20) | NO | The size of the data output. |
| OUTPUT_BYTES_DISPLAY | varchar(27) | NO | The size of the data output, with a unit. For example: 798.01 M or 5.25 G. |
| COMPRESSION_RATIO | decimal(23,2) | NO | The compression ratio. |
| DELETED_INPUT_BYTES | bigint(20) | NO | The size of the original data deleted. |
| DELETED_INPUT_BYTES_DISPLAY | varchar(27) | NO | The size of the original data deleted, with a unit. Valid values: MB, GB, TB, and PB. |
| DELETED_OUTPUT_BYTES | bigint(20) | NO | The size of the effective data deleted. |
| DELETED_OUTPUT_BYTES_DISPLAY | varchar(27) | NO | The size of the effective data deleted, with a unit. Valid values: MB, GB, TB, and PB. |
| PATH | varchar(2048) | NO | The archive path. |
| COMMENT | varchar(262144) | NO | The error message. |
Sample query
Query the status of all log archives of the current user tenant.
obclient [oceanbase]> SELECT * FROM oceanbase.DBA_OB_ARCHIVELOG_SUMMARY\G
The query result is as follows:
*************************** 1. row ***************************
DEST_ID: 1001
ROUND_ID: 1
INCARNATION: 1
DEST_NO: 0
STATUS: DOING
START_SCN: 1736228322307513000
START_SCN_DISPLAY: 2025-01-07 13:38:42.307513
CHECKPOINT_SCN: 1736233725601484000
CHECKPOINT_SCN_DISPLAY: 2025-01-07 15:08:45.601484
COMPATIBLE: 1
BASE_PIECE_ID: 1
USED_PIECE_ID: 1
PIECE_SWITCH_INTERVAL: 86400000000
UNIT_SIZE: 1
COMPRESSION: none
INPUT_BYTES: 85762972
INPUT_BYTES_DISPLAY: 81.79MB
OUTPUT_BYTES: 85762972
OUTPUT_BYTES_DISPLAY: 81.79MB
COMPRESSION_RATIO: 1.00
DELETED_INPUT_BYTES: 0
DELETED_INPUT_BYTES_DISPLAY: 0.00MB
DELETED_OUTPUT_BYTES: 0
DELETED_OUTPUT_BYTES_DISPLAY: 0.00MB
PATH: file:///home/admin/oceanbase/arglog
COMMENT:
1 row in set