Property | Description |
Parameter type | Integer |
Default value |
|
Modifiable | No |
Range of values |
|
Basic | No |
COMMIT_POINT_STRENGTH
is relevant only in distributed database systems. It specifies a value that determines the commit point site in a distributed transaction. The node in the transaction with the highest value for COMMIT_POINT_STRENGTH
will be the commit point site.
The commit point site of a database should reflect the amount of critical shared data in the database. For example, a database on a mainframe computer typically shares more data among users than one on a personal computer. Therefore, COMMIT_POINT_STRENGTH
should be set to a higher value for the mainframe computer.
The commit point site stores information about the status of transactions. Other computers in a distributed transaction require this information during Oracle's two-phase commit, so it is desirable to have machines that are always available as commit point sites. Therefore, set COMMIT_POINT_STRENGTH
to a higher value on your more available machines.
Note:
1. Query for the current value of the parameter
select name, value, isdefault, isses_modifiable, issys_modifiable,
isinstance_modifiable, isdeprecated, description
from v$parameter where upper(name) = 'COMMIT_POINT_STRENGTH';
NAME | VALUE | IS DEFAULT | ISSES_ MODIFIABLE | ISSYS_ MODIFIABLE | ISINSTANCE_ MODIFIABLE | IS DEPRECATED | DESCRIPTION |
commit_point_strength | 1 | TRUE | FALSE | FALSE | FALSE | FALSE | Bias this node has toward not preparing in a two-phase commit |
No comments:
Post a Comment