| Property | Description |
| Parameter type | Integer |
| Default value |
|
| Modifiable | No |
| Range of values | 0 to 4294967295 (4 GB -1) |
| Real Application Clusters | Multiple instances can have different values. |
OPEN_LINKS_PER_INSTANCE specifies the maximum number of migratable open connections globally for each database instance. XA transactions use migratable open connections so that the connections are cached after a transaction is committed. Another transaction can use the connection, provided the user who created the connection is the same as the user who owns the transaction.
OPEN_LINKS_PER_INSTANCE is different from OPEN_LINKS, which indicates the number of connections from a session. The OPEN_LINKS parameter is not applicable to XA applications.
Note:
2. 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) = ‘OPEN_LINKS_PER_INSTANCE’;
| NAME | VALUE | IS DEFAULT | ISSES_ MODIFIABLE | ISSYS_ MODIFIABLE | ISINSTANCE_ MODIFIABLE | IS DEPRECATED | DESCRIPTION |
| open_links_per_instance | 4 | TRUE | FALSE | FALSE | FALSE | FALSE | max # open links per instance |
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