Oracle 视图 V$DYNAMIC_REMASTER_STATS 官方解释,作用,如何使用详细说明

本站中文解释

V$DYNAMIC_REMASTER_STATS是Oracle的一个视图,位于X$KRSBS 表上,用来显示动态重新定位操作的状态计数,其中包括了重新定位块总数、重新定位失败的块数、重新定位超时的块数等等。通过V$DYNAMIC_REMASTER_STATS可以查看动态重新定位操作执行的情况,确保动态重新定位操作正确执行,以提高存储引擎性能。

使用V$DYNAMIC_REMASTER_STATS视图的方法:

首先,进入SQL*Plus命令行,然后在SQL查询窗口中输入如下语句,以查询动态重新定位操作的状态计数:

SELECT * FROM V$DYNAMIC_REMASTER_STATS;

这将显示出动态重新定位操作的状态计数,如重新定位块总数、重新定位成功的块数、重新定位失败的块数、重新定位超时的块数等等。

以上就是关于Oracle视图V$DYNAMIC_REMASTER_STATS及其用途以及使用步骤的详细介绍。

官方英文解释

V$DYNAMIC_REMASTER_STATS displays statistical information about the dynamic remastering process of object affinity and read-mostly. All times are given in hundredths of a second, and total values reflect what has been collected since instance startup.

Column Datatype Description

REMASTER_TYPE

VARCHAR2(11)

Remaster process type. Possible values:

  • AFFINITY: This value is used for the row containing statistics that pertain to dynamic remastering activity on object affinity.

  • READ-MOSTLY: This value is used for the row containing statistics that pertain to dynamic remastering activity on read-mostly objects.

REMASTER_OPS

NUMBER

Total number of dynamic remastering operations

REMASTER_TIME

NUMBER

Total dynamic remastering time

REMASTERED_OBJECTS

NUMBER

Total number of objects dynamically remastered due to affinity

PERSISTENT_OBJECTS

NUMBER

Current number of objects that are marked persistent read-mostly in the cluster

QUIESCE_TIME

NUMBER

Total quiesce step time

FREEZE_TIME

NUMBER

Total freeze step time

CLEANUP_TIME

NUMBER

Total cleanup step time

REPLAY_TIME

NUMBER

Total replay step time

FIXWRITE_TIME

NUMBER

Total fixwrite step time

SYNC_TIME

NUMBER

Total synchronization step time

RESOURCES_CLEANED

NUMBER

Total number of resources cleaned in the cleanup steps

REPLAYED_LOCKS_SENT

NUMBER

Total number of locks replayed to other instances in the replay steps

REPLAYED_LOCKS_RECEIVED

NUMBER

Total number of locks received from other instances in the replay steps

CURRENT_OBJECTS

NUMBER

Current number of objects remastered on this instance due to affinity or the current number of objects that are marked read-mostly in the cluster

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data


数据运维技术 » Oracle 视图 V$DYNAMIC_REMASTER_STATS 官方解释,作用,如何使用详细说明